{"cik":1683825,"entityName":"trivago N.V.","facts":{"us-gaap":{"AccountsPayableCurrent":{"label":"Accounts Payable, Current","description":"Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"EUR":[{"end":"2015-12-31","val":26263000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":39965000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":39965000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":51307000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":51307000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":33656000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":33656000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":33391000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":33391000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":6755000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":6755000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":6755000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":32329000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":14053000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":14053000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":19941000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":19941000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":17930000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":17930000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":24668000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":24668000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":34142000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"AccountsReceivableNetCurrent":{"label":"Accounts Receivable, after Allowance for Credit Loss, Current","description":"Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.","units":{"EUR":[{"end":"2015-12-31","val":19748000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":36658000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":36658000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":43062000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":43062000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":54981000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":54981000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":37747000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":37747000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":11642000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":11642000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":11642000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":38181000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":23707000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":23707000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":25679000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"}]}},"AccountsReceivableRelatedPartiesCurrent":{"label":"Accounts Receivable, Related Parties, Current","description":"Amount of receivables arising from transactions with related parties due within one year or the normal operating cycle, if longer.","units":{"EUR":[{"end":"2015-12-31","val":23605000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":16505000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":16505000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":39063000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":39063000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":39655000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":39655000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":31139000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":31139000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":2969000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":2969000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":2969000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":15188000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":16506000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":16506000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":24432000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"}]}},"AccruedIncomeTaxesCurrent":{"label":"Accrued Income Taxes, Current","description":"Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.","units":{"EUR":[{"end":"2015-12-31","val":256000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":3433000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":3433000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":3428000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":3428000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1221000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":1221000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":549000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":549000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":102000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":102000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":102000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":106000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":4358000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":4358000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":12325000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":12325000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":2087000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":2087000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1613000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":1613000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":6867000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"AccruedLiabilitiesCurrent":{"label":"Accrued Liabilities, Current","description":"Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"EUR":[{"end":"2015-12-31","val":2720000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":12627000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":12627000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":14711000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":9131000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":9650000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":9650000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":14763000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":14763000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":14934000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":14934000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":14934000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":16360000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":16323000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":16323000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":8675000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":8675000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":9874000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":9874000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":17667000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":17667000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":10504000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment":{"label":"Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment","description":"Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.","units":{"EUR":[{"end":"2015-12-31","val":5024000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":10096000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":10096000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":17695000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":17695000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":25697000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":25697000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":33995000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":33995000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":34352000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":34352000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":34352000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":36339000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":37537000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":37537000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":42175000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":42175000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":42477000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":42477000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":45797000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":45797000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":49461000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"AccumulatedOtherComprehensiveIncomeLossNetOfTax":{"label":"Accumulated Other Comprehensive Income (Loss), Net of Tax","description":"Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.","units":{"EUR":[{"end":"2015-12-31","val":-12000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":21000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":21000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":-180000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":-180000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":-89000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":-89000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":62000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":62000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":4000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":4000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":4000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":-4000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":36000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":36000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":54000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":54000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":75000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":75000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":267000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":267000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":-966000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"AdditionalPaidInCapital":{"label":"Additional Paid in Capital","description":"Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.","units":{"EUR":[{"end":"2015-12-31","val":695871000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":584667000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":584667000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":730431000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":730431000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":757262000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":757262000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":781060000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":781060000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":798017000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":798017000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":798017000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":812240000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":835839000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":835839000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":863987000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":863987000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":681333000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":681333000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":687232000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":687232000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":692845000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue":{"label":"APIC, Share-based Payment Arrangement, Increase for Cost Recognition","description":"Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":1751000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-5746000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-5746000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-15","val":64951000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-15","val":64951000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-15","val":64951000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2016-01-01","end":"2016-12-15","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2016"},{"start":"2016-12-16","end":"2016-12-31","val":459000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-12-16","end":"2016-12-31","val":459000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-12-16","end":"2016-12-31","val":459000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"},{"start":"2017-01-01","end":"2017-12-31","val":16071000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":16071000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":20702000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":20702000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":20702000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":19891000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":19891000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":19891000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":7687000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":4186000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":15079000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":15079000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":15079000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":8015000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":4896000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":17261000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":17261000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":17261000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":15342000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":15342000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":15342000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":9505000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":8215000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":8215000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":7084000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":7084000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":6880000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts":{"label":"Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs","description":"Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":4921000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":4921000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":4921000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"}]}},"AdvertisingExpense":{"label":"Advertising Expense","description":"Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":271367000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":432173000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":432173000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":623452000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":623452000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":623452000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":884685000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":884685000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":884685000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":732458000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":732458000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":732458000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":616705000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":616705000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":616705000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":108020000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":5465000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":149974000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":149974000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":149974000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":83254000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":64613000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":223550000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":223550000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":223550000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":317323000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":317323000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":317323000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":323147000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":323147000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":345376000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"}]}},"AllocatedShareBasedCompensationExpense":{"label":"Share-based Payment Arrangement, Expense","description":"Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":2400000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":14100000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":14100000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":43700000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-04-01","end":"2016-06-30","val":43700000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-04-01","end":"2016-06-30","val":43700000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-12-31","val":53700000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":53700000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":53700000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":16000000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":16000000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":16000000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":20700000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":20700000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":20700000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":19900000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":19900000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":19900000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":7687000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":4186000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":15100000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":15100000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":15100000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":8015000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":4896000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":17300000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":17300000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":17300000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":15300000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":15300000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":15342000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":9500000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":9505000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":9505000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":8451000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":8451000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":7832000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"AllowanceForDoubtfulAccountsReceivableCurrent":{"label":"Accounts Receivable, Allowance for Credit Loss, Current","description":"Amount of allowance for credit loss on accounts receivable, classified as current.","units":{"EUR":[{"end":"2015-12-31","val":251000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":152000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":152000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":231000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":231000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":250000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":231000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":250000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":74000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":348000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":348000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":348000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":404000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":658000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":658000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":418000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":418000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":936000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":936000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":958000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":958000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":838000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"AllowanceForDoubtfulAccountsReceivableWriteOffs":{"label":"Accounts Receivable, Allowance for Credit Loss, Writeoff","description":"Amount of direct write-downs of accounts receivable charged against the allowance.","units":{"EUR":[{"start":"2020-01-01","end":"2020-12-31","val":400000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":20000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"}]}},"AmortizationOfIntangibleAssets":{"label":"Amortization of Intangible Assets","description":"The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":30025000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":30030000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":30030000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":13857000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":13857000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":13857000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":3220000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":3220000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":3220000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":1684000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":1684000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":1684000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":1685000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":1685000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":1685000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":361000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":36000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":373000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":373000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":373000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":68000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":68000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":136000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":136000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":136000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":136000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":136000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":136000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":135000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":135000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":135000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":23000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":23000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":1792000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"AssetRetirementObligation":{"label":"Asset Retirement Obligation","description":"The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.","units":{"EUR":[{"end":"2017-12-31","val":1000000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":1000000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":600000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"}]}},"Assets":{"label":"Assets","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.","units":{"EUR":[{"end":"2015-12-31","val":760255000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1007246000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":1007246000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1078454000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":1078454000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1095543000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":1095543000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1108011000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":1108011000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":830898000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":830898000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":830898000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":811043000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":834519000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":834519000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":691592000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":691592000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":325069000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":325069000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":300717000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":300717000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":358449000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"AssetsCurrent":{"label":"Assets, Current","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.","units":{"EUR":[{"end":"2015-12-31","val":66197000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":292874000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":292874000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":293279000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":293279000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":265256000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":265256000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":310286000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":310286000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":260792000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":260792000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":260792000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":281761000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":310391000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":310391000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":353204000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":353204000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":187927000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":187927000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":190271000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":190271000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":214089000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"BusinessAcquisitionsProFormaNetIncomeLoss":{"label":"Business Acquisition, Pro Forma Net Income (Loss)","description":"The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-22973000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-39359000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-39359000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2020-01-01","end":"2020-06-30","val":-235340000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-20639000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"}]}},"BusinessAcquisitionsProFormaRevenue":{"label":"Business Acquisition, Pro Forma Revenue","description":"The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":311076000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":494387000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":494387000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2020-01-01","end":"2020-06-30","val":156263000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":16133000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"}]}},"BusinessCombinationAcquisitionRelatedCosts":{"label":"Business Combination, Acquisition Related Costs","description":"This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":200000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":800000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":800000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"}]}},"BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual":{"label":"Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual","description":"This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.","units":{"EUR":[{"start":"2021-01-01","end":"2021-06-30","val":-1200000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-600000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"}]}},"BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual":{"label":"Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual","description":"This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.","units":{"EUR":[{"start":"2021-01-01","end":"2021-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents","description":"Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"EUR":[{"end":"2014-12-31","val":100000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2400000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest":{"label":"Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest","description":"Amount recognized as of the acquisition date for the assets, including goodwill, in excess of (less than) the aggregate liabilities assumed, less the noncontrolling interest in the acquiree.","units":{"EUR":[{"end":"2017-08-31","val":700000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017Q3I"}]}},"CapitalExpendituresIncurredButNotYetPaid":{"label":"Capital Expenditures Incurred but Not yet Paid","description":"Future cash outflow to pay for purchases of fixed assets that have occurred.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":53000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":306000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":306000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":129000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":129000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":129000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1557000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":1557000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":1557000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":992000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":992000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":992000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":202000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":202000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":202000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":114000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":114000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":5000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":5000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":5000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":3000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":3000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":3000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"}]}},"CapitalizedComputerSoftwareAmortization1":{"label":"Capitalized Computer Software, Amortization","description":"Amount of expense for amortization of capitalized computer software costs.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":200000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":500000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":1200000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016"}]}},"CapitalLeaseObligationsNoncurrent":{"label":"Capital Lease Obligations, Noncurrent","description":"Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.","units":{"EUR":[{"end":"2017-12-31","val":92322000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":127705000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":127705000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"}]}},"Cash":{"label":"Cash","description":"Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.","units":{"EUR":[{"end":"2015-12-31","val":17556000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":227298000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":227298000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":190201000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":190201000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":161871000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":161871000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":218106000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":218106000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":208353000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":208353000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":208353000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":193659000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":256378000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":256378000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":248584000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":248584000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":101847000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":101847000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":133745000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":133745000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":130936000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"CashAndCashEquivalentsAtCarryingValue":{"label":"Cash and Cash Equivalents, at Carrying Value","description":"Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.","units":{"EUR":[{"end":"2013-12-31","val":8991000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2013Q4I"},{"end":"2014-12-31","val":6142000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2014-12-31","val":6142000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2014Q4I"},{"end":"2015-12-31","val":17556000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2015-12-31","val":17556000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015Q4I"},{"end":"2016-12-31","val":227298000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":227298000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":190201000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"}]}},"CashAndCashEquivalentsPeriodIncreaseDecrease":{"label":"Cash and Cash Equivalents, Period Increase (Decrease)","description":"Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-2849000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":11414000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":11414000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":209742000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":209742000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-37097000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"}]}},"CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents":{"label":"Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents","description":"Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"EUR":[{"end":"2015-12-31","val":18241000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2015Q4I"},{"end":"2016-12-31","val":228182000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2016-12-31","val":228182000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":192900000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2017-12-31","val":192900000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2017-12-31","val":192900000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2017Q4I"},{"end":"2018-12-31","val":164308000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":164308000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2018-12-31","val":164308000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2018-12-31","val":164308000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2018Q4I"},{"end":"2019-12-31","val":220543000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":220543000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2019-12-31","val":220543000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2019-12-31","val":220543000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2019-12-31","val":220543000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2019Q4I"},{"end":"2020-03-31","val":193860000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q1I"},{"end":"2020-06-30","val":213679000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2I"},{"end":"2020-12-31","val":210771000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":210771000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":210771000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2020-12-31","val":210771000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2020-12-31","val":210771000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2020Q4I"},{"end":"2021-03-31","val":193417000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q1I"},{"end":"2021-06-30","val":194001000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":256719000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":256719000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2021-12-31","val":256719000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2021-12-31","val":256719000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2021Q4I"},{"end":"2022-12-31","val":248926000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":248926000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2022-12-31","val":248926000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2022-12-31","val":248926000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2022Q4I"},{"end":"2023-12-31","val":102189000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":102189000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2023-12-31","val":102189000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023Q4I"},{"end":"2024-12-31","val":134087000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":134087000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":131071000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect":{"label":"Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect","description":"Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":209941000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-35282000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-35282000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-28592000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-28592000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-28592000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":56235000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":56235000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":56235000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-6864000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":19819000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-9772000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-9772000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-9772000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-16770000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":584000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":45948000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":45948000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":45948000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-7793000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-7793000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-7793000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-146737000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-146737000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-146737000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":31898000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":31898000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-3016000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"CashDivestedFromDeconsolidation":{"label":"Cash Divested from Deconsolidation","description":"Reduction in cash due to no longer including the former subsidiary's cash in the consolidated entity's cash.","units":{"EUR":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":249000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":249000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":249000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"}]}},"ComprehensiveIncomeNetOfTax":{"label":"Comprehensive Income (Loss), Net of Tax, Attributable to Parent","description":"Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-23096000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-39139000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-39139000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-50649000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-50649000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-50649000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-12682000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-12682000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-12682000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-21398000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-21398000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":17312000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-245436000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":10736000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":10736000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-127200000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-127200000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-127200000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-164455000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-164455000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-164455000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-23506000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-23506000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":9987000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest":{"label":"Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest","description":"Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-393000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-393000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-581000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-581000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-581000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-568000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-568000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-568000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"}]}},"ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest":{"label":"Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest","description":"Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-23096000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-39532000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-39532000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-51230000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-51230000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-51230000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-13250000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-13250000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-13250000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-21398000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-21398000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-21398000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":17312000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":17312000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":17312000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-234395000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-20163000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-245436000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-245436000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-10037000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-3282000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":10736000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"}]}},"ConstructionInProgressExpendituresIncurredButNotYetPaid":{"label":"Construction in Progress Expenditures Incurred but Not yet Paid","description":"Future cash outflow to pay for construction in progress expenditures that have occurred.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":4852000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":4852000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":30883000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":30883000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":30883000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":56586000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":56586000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":56586000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":36979000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":36979000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":36979000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020"}]}},"ContractWithCustomerLiabilityCurrent":{"label":"Contract with Customer, Liability, Current","description":"Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.","units":{"EUR":[{"end":"2017-12-31","val":8941000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2017-12-31","val":8900000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":7863000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":7863000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2018-12-31","val":7900000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018Q4I"},{"end":"2019-12-31","val":5553000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":5553000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2019-12-31","val":5600000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019Q4I"},{"end":"2020-12-31","val":2750000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":2750000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":2750000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2020-12-31","val":2800000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020Q4I"},{"end":"2021-06-30","val":1814000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":2174000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":2174000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2021-12-31","val":2200000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1689000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":1689000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2022-12-31","val":1700000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1176000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":1176000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2023-12-31","val":1200000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1041000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":1041000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":3927000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"ContractWithCustomerLiabilityRevenueRecognized":{"label":"Contract with Customer, Liability, Revenue Recognized","description":"Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.","units":{"EUR":[{"start":"2018-01-01","end":"2018-12-31","val":8000000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":8000000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":7600000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":7600000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":5200000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":5200000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":2600000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-01-01","end":"2021-12-31","val":2800000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":2800000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":2100000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":2100000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":1700000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":1700000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"}]}},"ConversionOfStockAmountConverted1":{"label":"Conversion of Stock, Amount Converted","description":"\"The value of the stock converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. \"\"Part noncash\"\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.\"","units":{"EUR":[{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"}]}},"CostOfGoodsAndServicesSold":{"label":"Cost of Goods and Services Sold","description":"The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":1443000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":2946000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":2946000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":4273000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":4273000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":5930000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"}]}},"CostOfRevenue":{"label":"Cost of Revenue","description":"The aggregate cost of goods produced and sold and services rendered during the reporting period.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":1443000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":2946000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":2946000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":4273000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":4273000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":4273000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":5930000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":5930000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":5930000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":5435000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":5435000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":5435000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":9159000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":9159000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":9159000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":5468000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":2654000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":10133000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":10133000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":10133000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":5547000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":2961000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":11500000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":11500000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":11500000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":12691000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":12691000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":12691000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":11971000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":11971000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":11971000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":11266000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":11266000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":15095000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption":{"label":"Cumulative Effect of New Accounting Principle in Period of Adoption (Deprecated 2020-01-31)","description":"Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.","units":{"EUR":[{"end":"2017-12-31","val":143000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2017Q4I"},{"end":"2018-12-31","val":143000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":143000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2018-12-31","val":3799000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018Q4I"},{"end":"2019-12-31","val":3799000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"}]}},"CurrentFederalTaxExpenseBenefit":{"label":"Current Federal Tax Expense (Benefit)","description":"Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":628000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-1032000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-1032000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":11405000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":11405000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":11405000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":323000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":323000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":323000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":2225000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":2225000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":2225000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":18769000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":18769000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":18769000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-362000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-362000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-362000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":3729000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":3729000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":3729000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":26239000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":26239000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":26239000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":15883000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":15883000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":15883000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":3362000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":3362000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":6590000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"CurrentForeignTaxExpenseBenefit":{"label":"Current Foreign Tax Expense (Benefit)","description":"Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":43000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":158000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":158000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":103000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":103000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":103000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":112000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":112000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":112000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":125000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":125000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":125000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":309000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":309000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":309000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":117000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":117000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":117000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":1000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":1000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":1000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":65000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":65000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":65000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":9000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":9000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":9000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":4000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":4000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":41000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"CurrentIncomeTaxExpenseBenefit":{"label":"Current Income Tax Expense (Benefit)","description":"Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":671000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-874000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-874000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":11508000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":11508000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":11508000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":435000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":435000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":435000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":2350000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":2350000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":2350000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":19078000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":19078000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":19078000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-245000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-245000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-245000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":3730000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":3730000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":3730000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":26304000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":26304000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":26304000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":15892000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":15892000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":15892000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":3366000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":3366000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":6631000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"DeconsolidationGainOrLossAmount":{"label":"Deconsolidation, Gain (Loss), Amount","description":"Amount of gain (loss) from deconsolidation of subsidiary and derecognition of group of assets constituting transfer of business or nonprofit activity, excluding conveyance of oil and gas mineral rights and transfer of good or service in contract with customer.","units":{"EUR":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":2007000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":2007000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":2007000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":81000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":81000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"DeferredFederalIncomeTaxExpenseBenefit":{"label":"Deferred Federal Income Tax Expense (Benefit)","description":"Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-9315000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-10444000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-10444000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-4838000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-4838000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-4838000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-4851000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-4851000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-4851000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-1264000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-1264000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-1264000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":2020000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":2020000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":2020000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-8165000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-8165000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-8165000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":8914000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":8914000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":8914000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-19763000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-19763000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-19763000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-3501000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-3501000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-3501000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-9617000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-9617000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-11292000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"DeferredForeignIncomeTaxExpenseBenefit":{"label":"Deferred Foreign Income Tax Expense (Benefit)","description":"Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-348000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-348000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-348000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-116000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-116000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":-116000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-84000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-84000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-84000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":-58000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":-58000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":-58000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":29000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":29000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":29000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-3000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-3000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-695000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"DeferredIncomeTaxAssetsNet":{"label":"Deferred Income Tax Assets, Net","description":"Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.","units":{"EUR":[{"end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":735000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":735000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":1000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":1000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":1000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":26000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":26000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":2438000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"DeferredIncomeTaxExpenseBenefit":{"label":"Deferred Income Tax Expense (Benefit)","description":"Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-9315000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-10444000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-10444000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-4838000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-4838000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-4838000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-5199000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-5199000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-5199000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-1264000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-1264000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-1264000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":1904000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":1904000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":1904000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-8249000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-8249000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-8249000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":8856000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":8856000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":8856000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-19734000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-19734000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-19734000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-3501000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-3501000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-3501000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-9620000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-9620000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-11987000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"DeferredIncomeTaxesAndTaxCredits":{"label":"Deferred Income Taxes and Tax Credits","description":"Amount of deferred income tax expense (benefit) and income tax credits.","units":{"EUR":[{"start":"2015-01-01","end":"2015-12-31","val":-10444000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-4838000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-4838000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-4851000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-4851000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-4851000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-1755000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-1755000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-1755000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":1904000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":1904000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":1904000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-7422000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-6281000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-8248000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-8248000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-8248000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-513000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":39000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":8856000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":8856000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":8856000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-19734000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-19734000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-19734000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-3501000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-3501000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-3501000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-9751000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-9751000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-3304000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"DeferredIncomeTaxLiabilities":{"label":"Deferred Tax Liabilities, Gross","description":"Amount of deferred tax liability attributable to taxable temporary differences.","units":{"EUR":[{"end":"2015-12-31","val":59894000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":55793000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":55793000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":56107000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":56107000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":57159000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":57159000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":86221000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":86221000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":83088000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":83088000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":69418000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":69418000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":44262000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":44262000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":41287000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":41287000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":31632000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":31632000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":33963000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"DeferredIncomeTaxLiabilitiesNet":{"label":"Deferred Income Tax Liabilities, Net","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.","units":{"EUR":[{"end":"2019-12-31","val":50927000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":42176000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":42176000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":42176000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":41663000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":49810000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":49810000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":30050000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":30050000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":26549000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":26549000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":16798000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":16798000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":14190000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"DeferredRevenueCurrent":{"label":"Deferred Revenue, Current","description":"Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current.","units":{"EUR":[{"end":"2015-12-31","val":2264000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":5078000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":5078000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":8941000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"}]}},"DeferredTaxAssetsGoodwillAndIntangibleAssets":{"label":"Deferred Tax Assets, Goodwill and Intangible Assets","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill.","units":{"EUR":[{"end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":372000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":372000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":253000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":253000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2023-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":18000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":18000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"DeferredTaxAssetsGross":{"label":"Deferred Tax Assets, Gross","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.","units":{"EUR":[{"end":"2015-12-31","val":1998000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":6187000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":6187000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":8150000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":8150000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":10609000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":10609000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":36110000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":36110000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":41449000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":41449000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":21022000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":21022000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":15541000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":15541000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":16077000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":16077000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":15623000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":15623000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":22872000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"DeferredTaxAssetsLiabilitiesNet":{"label":"Deferred Tax Assets, Net","description":"Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.","units":{"EUR":[{"end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":735000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":735000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":1000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":26000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":26000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":2438000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"DeferredTaxAssetsNet":{"label":"Deferred Tax Assets, Net of Valuation Allowance","description":"Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.","units":{"EUR":[{"end":"2015-12-31","val":1900000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":2637000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":2637000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":7802000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":7802000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":10609000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":10609000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":36029000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":36029000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":40913000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":40913000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":19634000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":19634000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":14212000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":14212000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":14738000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":14738000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":14834000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":14834000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":22211000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration":{"label":"Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are not subject to expiration dates.","units":{"EUR":[{"end":"2019-12-31","val":300000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":11300000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"}]}},"DeferredTaxAssetsOther":{"label":"Deferred Tax Assets, Other","description":"Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.","units":{"EUR":[{"end":"2015-12-31","val":750000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1331000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":26000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":731000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":405000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":329000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":329000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"}]}},"DeferredTaxAssetsPropertyPlantAndEquipment":{"label":"Deferred Tax Assets, Property, Plant and Equipment","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.","units":{"EUR":[{"end":"2016-12-31","val":372000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":537000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":537000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":459000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":459000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":116000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":116000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":1000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":63000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseOther":{"label":"Deferred Tax Assets, Tax Deferred Expense, Other","description":"Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from provisions, reserves, allowances, and accruals, classified as other.","units":{"EUR":[{"end":"2016-12-31","val":5000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":326000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":299000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":299000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":311000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":311000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":115000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":115000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":47000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":47000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":35000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":35000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":33000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":33000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":40000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":40000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":55000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals":{"label":"Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from reserves and accruals.","units":{"EUR":[{"end":"2016-12-31","val":51000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":473000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":473000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1381000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":1381000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":147000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":147000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":26000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":26000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":157000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":157000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":42000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":42000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":47000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent":{"label":"Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred rent.","units":{"EUR":[{"end":"2016-12-31","val":882000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1429000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":1429000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1778000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":1778000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":1000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"}]}},"DeferredTaxAssetsValuationAllowance":{"label":"Deferred Tax Assets, Valuation Allowance","description":"Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.","units":{"EUR":[{"end":"2015-12-31","val":98000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":3550000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":3550000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":348000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":348000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":81000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":81000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":536000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":536000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":1388000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":1388000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1329000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":1329000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1339000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":1339000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":789000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":789000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":661000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"DeferredTaxLiabilities":{"label":"Deferred Tax Liabilities, Net","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.","units":{"EUR":[{"end":"2015-12-31","val":57994000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":53156000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":53156000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":48305000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":48305000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":46550000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":46550000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":50927000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":50927000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":42176000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":42176000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":49810000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":49810000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":30050000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":30050000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":26549000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":26549000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":16798000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":16798000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":14190000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"DeferredTaxLiabilitiesDeferredExpense":{"label":"Deferred Tax Liabilities, Deferred Expense","description":"Amount of deferred tax liability attributable to taxable temporary differences from capitalized costs.","units":{"EUR":[{"end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":67000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":67000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":448000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":448000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"}]}},"DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets":{"label":"Deferred Tax Liabilities, Intangible Assets","description":"Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.","units":{"EUR":[{"end":"2015-12-31","val":59301000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":54972000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":54972000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":53981000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":53981000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":53499000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":53499000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":53021000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":53021000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":52928000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":52928000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":51257000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":51257000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":27771000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":27771000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":23332000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":23332000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":13913000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":13913000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":18371000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"DeferredTaxLiabilitiesNoncurrent":{"label":"Deferred Tax Liabilities, Net, Noncurrent","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent.","units":{"EUR":[{"end":"2015-12-31","val":57994000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":53156000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":53156000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":48305000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":48305000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":46550000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":46550000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":50927000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"}]}},"DeferredTaxLiabilitiesOther":{"label":"Deferred Tax Liabilities, Other","description":"Amount of deferred tax liability attributable to taxable temporary differences classified as other.","units":{"EUR":[{"end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":9000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":9000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":434000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":434000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":235000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":235000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":179000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":179000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":16000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":16000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":88000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":88000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":47000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":47000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":56000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":56000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"DeferredTaxLiabilitiesPropertyPlantAndEquipment":{"label":"Deferred Tax Liabilities, Property, Plant and Equipment","description":"Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.","units":{"EUR":[{"end":"2015-12-31","val":594000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":812000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":812000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2059000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":2059000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2778000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":2778000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2980000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":2980000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":2875000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":2875000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":2334000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":2334000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":2129000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":2129000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":2108000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":2108000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1946000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":1946000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":2012000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"Depreciation":{"label":"Depreciation","description":"The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":1400000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":2649000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":2649000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":5083000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":5083000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":5083000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":7802000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":7802000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":7802000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":11370000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":11370000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":11370000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":10298000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":10298000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":10298000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":5626000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":3044000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":10479000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":10479000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":10479000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":4408000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":2168000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":8213000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":8213000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":8213000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":5996000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":5996000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":5996000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":4421000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":4421000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":4421000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":3725000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":3725000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":4141000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"DueToRelatedPartiesCurrent":{"label":"Due to Related Parties, Current","description":"Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).","units":{"EUR":[{"end":"2015-12-31","val":7129000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"}]}},"EarningsPerShareBasic":{"label":"Earnings Per Share, Basic","description":"The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.","units":{"EUR/shares":[{"start":"2017-01-01","end":"2017-12-31","val":-0.05,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-0.06,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-0.06,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.05,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":0.05,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0.05,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-0.66,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-0.06,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-0.69,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-0.69,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-0.69,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-0.03,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-0.01,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":0.03,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0.03,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":0.03,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-0.36,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-0.36,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-0.36,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-0.48,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-0.48,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-0.48,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-0.07,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-0.07,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0.03,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"EarningsPerShareBasicAndDiluted":{"label":"Earnings Per Share, Basic and Diluted","description":"The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.","units":{"EUR/shares":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2016-12-16","end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-12-16","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-12-16","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"},{"start":"2017-01-01","end":"2017-12-31","val":-0.05,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-0.05,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-0.06,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018"}],"USD/shares":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"}]}},"EarningsPerShareDiluted":{"label":"Earnings Per Share, Diluted","description":"The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.","units":{"EUR/shares":[{"start":"2017-01-01","end":"2017-12-31","val":-0.05,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-0.06,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-0.06,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.05,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":0.05,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0.05,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-0.66,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-0.06,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-0.69,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-0.69,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-0.69,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-0.03,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-0.01,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":0.03,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0.03,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":0.03,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-0.36,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-0.36,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-0.36,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-0.48,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-0.48,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-0.48,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-0.07,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-0.07,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0.03,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"EffectiveIncomeTaxRateContinuingOperations":{"label":"Effective Income Tax Rate Reconciliation, Percent","description":"Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.","units":{"pure":[{"start":"2014-01-01","end":"2014-12-31","val":0.272,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.223,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":0.223,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-0.149,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-0.149,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-0.149,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0.267,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0.267,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0.267,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-0.053,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-0.053,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-0.053,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.557,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":0.557,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0.557,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":0.033,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":0.256,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":0.034,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":0.034,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":0.034,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":0.111,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-0.002,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":0.54,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0.54,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":0.54,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-0.055,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-0.055,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-0.055,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-0.082,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-0.082,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-0.082,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0.221,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":0.221,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-0.667,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate":{"label":"Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent","description":"Percentage of domestic federal statutory tax rate applicable to pretax income (loss).","units":{"pure":[{"start":"2014-01-01","end":"2014-12-31","val":0.3123,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.3123,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":0.3123,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.3123,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":0.3123,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":0.3123,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0.3123,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0.3123,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0.3123,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0.3123,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0.3123,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0.3123,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.3123,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":0.3123,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0.3123,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0.3123,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":0.3123,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":0.312,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0.3123,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0.312,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":0.312,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0.312,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":0.312,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":0.312,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0.312,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":0.312,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":0.312,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0.312,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":0.312,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0.312,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to impairment loss.","units":{"pure":[{"start":"2020-01-01","end":"2020-12-31","val":-0.256,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-0.256,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-0.256,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2022-01-01","end":"2022-12-31","val":-0.272,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-0.272,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-0.374,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-0.374,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent","description":"Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for share-based payment arrangement.","units":{"pure":[{"start":"2017-01-01","end":"2017-12-31","val":-0.282,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-0.316,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-0.316,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.165,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":0.165,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0.165,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-0.019,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-0.019,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-0.019,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0.231,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0.231,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":0.231,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-0.04,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-0.04,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-0.02,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-0.02,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-0.093,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0.304,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"EffectOfExchangeRateOnCashAndCashEquivalents":{"label":"Effect of Exchange Rate on Cash and Cash Equivalents","description":"Amount of increase (decrease) from the effect of exchange rate changes on cash and cash equivalent balances held in foreign currencies.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":105000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-32000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-32000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-54000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-54000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-1259000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"}]}},"EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents":{"label":"Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents","description":"Amount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies. Excludes amounts for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":-54000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-1259000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-1259000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-24000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-24000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-24000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":94000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":94000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":94000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-9000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-124000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-1275000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-1275000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-1275000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":905000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":55000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":2341000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":2341000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":2341000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":470000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":470000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":470000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-385000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-385000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-385000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":202000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":202000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-256000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"EmployeeRelatedLiabilitiesCurrent":{"label":"Employee-related Liabilities, Current","description":"Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"EUR":[{"end":"2017-12-31","val":5580000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":8531000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":8531000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":4055000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":4055000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":2983000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":2983000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":2983000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":3162000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":3289000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":3289000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":2454000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":2454000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":2619000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":2619000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":2327000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":2327000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":4042000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount":{"label":"Share-based Payment Arrangement, Amount Capitalized","description":"Amount of cost capitalized for award under share-based payment arrangement.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":8000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":103000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":103000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":318000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":318000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":318000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":85000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":85000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":85000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"}]}},"EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions":{"label":"Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options (Deprecated 2017-01-31)","description":"Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":10000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":685000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016"}]}},"EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized":{"label":"Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount","description":"Amount of cost not yet recognized for nonvested award under share-based payment arrangement.","units":{"EUR":[{"end":"2016-12-31","val":9300000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":35100000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":27000000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":20400000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":14500000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":18400000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":18400000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":15700000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":13500000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":8800000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense":{"label":"Share-based Payment Arrangement, Expense, Tax Benefit","description":"Amount of tax benefit for recognition of expense of award under share-based payment arrangement.","units":{"EUR":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"}]}},"EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions":{"label":"Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options (Deprecated 2017-01-31)","description":"Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016"}]}},"FiniteLivedIntangibleAssetsAccumulatedAmortization":{"label":"Finite-Lived Intangible Assets, Accumulated Amortization","description":"Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.","units":{"EUR":[{"end":"2015-12-31","val":84429000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":98286000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":98286000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":101484000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":101484000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":103169000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":103169000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":104854000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":104854000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":104804000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":104804000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":104944000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":104944000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":105080000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":271000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":406000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"}]}},"FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths":{"label":"Finite-Lived Intangible Asset, Expected Amortization, Year One","description":"Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2016-12-31","val":3163000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1711000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1685000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":374000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":135000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":100000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":100000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"}]}},"FiniteLivedIntangibleAssetsAmortizationExpenseYearFive":{"label":"Finite-Lived Intangible Asset, Expected Amortization, Year Five","description":"Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2018-12-31","val":3000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"}]}},"FiniteLivedIntangibleAssetsAmortizationExpenseYearFour":{"label":"Finite-Lived Intangible Asset, Expected Amortization, Year Four","description":"Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2016-12-31","val":290000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":135000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"}]}},"FiniteLivedIntangibleAssetsAmortizationExpenseYearThree":{"label":"Finite-Lived Intangible Asset, Expected Amortization, Year Three","description":"Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2016-12-31","val":1546000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":382000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":135000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":100000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"}]}},"FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo":{"label":"Finite-Lived Intangible Asset, Expected Amortization, Year Two","description":"Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2016-12-31","val":1553000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1701000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":374000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":135000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":100000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":100000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"}]}},"FiniteLivedIntangibleAssetsGross":{"label":"Finite-Lived Intangible Assets, Gross","description":"Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.","units":{"EUR":[{"end":"2015-12-31","val":104838000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":104838000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":104838000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":105278000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":105278000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":105233000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":105233000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":105233000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":105233000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":104809000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":104809000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":105484000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":105484000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":105484000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":675000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":675000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"}]}},"FiniteLivedIntangibleAssetsNet":{"label":"Finite-Lived Intangible Assets, Net","description":"Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.","units":{"EUR":[{"end":"2015-12-31","val":20409000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":6552000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":6552000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":3794000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":3794000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2064000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":2064000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":379000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":379000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":5000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":5000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":540000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":540000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":404000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":404000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":269000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":269000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":28826000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"ForeignCurrencyTransactionGainLossBeforeTax":{"label":"Foreign Currency Transaction Gain (Loss), before Tax","description":"Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-1554000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-960000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-960000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":16000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":16000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":16000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":217000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":217000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":217000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-587000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-587000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-587000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-429000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-429000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":-429000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":357000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-286000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-795000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-795000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-795000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":664000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-127000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":1554000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":1554000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":1554000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-228000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-228000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-228000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-632000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-632000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-632000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":280000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":280000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":604000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"GainLossOnDispositionOfAssets":{"label":"Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property","description":"Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-605000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-605000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-605000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-2000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-2000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":-2000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-84000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-83000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-185000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-185000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-185000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-104000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-203000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":-317000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":-317000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":-317000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":6000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":6000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":6000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":18000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":18000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":18000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":2000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":2000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":10000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"GainLossOnSaleOfBusiness":{"label":"Gain (Loss) on Disposition of Business","description":"Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.","units":{"EUR":[{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":393000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":393000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":393000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"}]}},"GainLossOnTerminationOfLease":{"label":"Gain (Loss) on Termination of Lease","description":"Amount of gain (loss) on termination of lease before expiration of lease term.","units":{"EUR":[{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":35000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":35000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":179000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":179000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":179000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"end":"2021-01-29","val":-6700000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q4I"},{"start":"2021-01-01","end":"2021-03-31","val":1200000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":1311000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":128000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":1307000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":1307000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":1307000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"}]}},"GeneralAndAdministrativeExpense":{"label":"General and Administrative Expense","description":"The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":6536000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":18065000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":18065000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":54097000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":55602000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":55602000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":47444000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":47444000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":47444000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":54326000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":54326000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":54326000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":55543000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":55543000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":55543000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":24324000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":9019000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":40935000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":40935000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":40935000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":18704000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":10189000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":38208000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":38208000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":38208000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":60852000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":60852000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":60852000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":38726000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":38726000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":38726000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":33097000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":33097000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":33571000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"Goodwill":{"label":"Goodwill","description":"Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"EUR":[{"end":"2014-12-31","val":487954000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014Q4I"},{"end":"2015-12-31","val":490360000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2015-12-31","val":490360000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015Q4I"},{"end":"2016-12-31","val":490503000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":490503000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2016-12-31","val":490503000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":490455000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":490455000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2017-12-31","val":490455000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":490529000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":490529000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2018-12-31","val":490529000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018Q4I"},{"end":"2019-12-31","val":490590000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":490590000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2019-12-31","val":490590000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019Q4I"},{"end":"2020-12-31","val":282664000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":282664000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":282664000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2020-12-31","val":282664000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020Q4I"},{"end":"2021-01-12","val":3800000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2021-06-30","val":287736000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":286539000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":286539000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2021-12-31","val":286539000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021Q4I"},{"end":"2022-12-31","val":181927000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":181927000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2022-12-31","val":181927000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022Q4I"},{"end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":13797000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"GoodwillAcquiredDuringPeriod":{"label":"Goodwill, Acquired During Period","description":"Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.","units":{"EUR":[{"start":"2015-01-01","end":"2015-12-31","val":2583000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015"},{"start":"2017-01-01","end":"2017-12-31","val":250000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":250000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"},{"start":"2021-01-01","end":"2021-12-31","val":3838000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"},{"start":"2025-01-01","end":"2025-12-31","val":14192000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"GoodwillForeignCurrencyTranslationGainLoss":{"label":"Goodwill, Foreign Currency Translation Gain (Loss)","description":"Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"EUR":[{"start":"2015-01-01","end":"2015-12-31","val":-177000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":143000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":143000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-175000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-175000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":74000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":74000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":61000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":61000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":9000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":9000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":37000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":37000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":30000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":30000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2025-01-01","end":"2025-12-31","val":-395000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"GoodwillImpairedAccumulatedImpairmentLoss":{"label":"Goodwill, Impaired, Accumulated Impairment Loss","description":"Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"EUR":[{"end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":207600000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":207600000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":207600000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":207600000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":312300000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":312300000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":494200000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":494200000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":494200000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":494200000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":494200000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"GoodwillImpairmentLoss":{"label":"Goodwill, Impairment Loss","description":"Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"EUR":[{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":207618000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":207618000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":207618000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":104642000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":104642000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":181927000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":181927000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"}]}},"GoodwillWrittenOffRelatedToSaleOfBusinessUnit":{"label":"Goodwill, Written off Related to Sale of Business Unit","description":"Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"EUR":[{"start":"2017-01-01","end":"2017-12-31","val":123000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":123000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"},{"start":"2020-01-01","end":"2020-12-31","val":317000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":317000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":3838000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021"}]}},"ImpairmentOfIntangibleAssetsFinitelived":{"label":"Impairment of Intangible Assets, Finite-lived","description":"The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":1437000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":1437000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":96000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"}]}},"ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill":{"label":"Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)","description":"Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.","units":{"EUR":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":80000000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":80000000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":80000000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2022-01-01","end":"2023-12-31","val":94200000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":14200000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":14200000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":14200000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":30000000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":30000000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic":{"label":"Income (Loss) from Continuing Operations before Income Taxes, Domestic","description":"The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-32033000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-50446000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-50446000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-32985000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-32985000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-32985000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-20018000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-20018000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-20018000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-20574000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-20574000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-20574000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":36750000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":36750000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":36750000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-252859000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-252859000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-252859000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":23387000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":23387000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":23387000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-119273000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-119273000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-119273000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-151890000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-151890000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-151890000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-28191000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-28191000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":9126000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest":{"label":"Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest","description":"Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-31740000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-50684000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-50684000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-44721000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-44721000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-17813000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign":{"label":"Income (Loss) from Continuing Operations before Income Taxes, Foreign","description":"The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":293000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-238000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-238000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-11736000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-11736000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-11736000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":2205000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":2205000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":2205000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":108000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":108000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":108000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":940000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":940000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":940000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-274000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-274000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-274000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":-97000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":-97000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":-97000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-974000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-974000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-974000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":26000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":26000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":26000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-56000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-56000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-1096000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments":{"label":"Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest","description":"Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":-44721000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-17813000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-17813000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-20466000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-20466000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-20466000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":37690000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":37690000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":37690000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-242672000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-27050000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-253133000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-253133000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-253133000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-11285000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-3283000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":23290000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":23290000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":23290000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-120247000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-120247000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-120247000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-151864000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-151864000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-151864000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-28247000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-28247000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":8030000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeLossFromEquityMethodInvestments":{"label":"Income (Loss) from Equity Method Investments","description":"Amount of income (loss) for proportionate share of equity method investee's income (loss).","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":63000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":63000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":63000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":453000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":453000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":453000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":213000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-21000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-739000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-739000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-739000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-401000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-401000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-401000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-221000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-221000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-221000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-1705000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-1705000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-2166000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions":{"label":"Income (Loss) from Equity Method Investments, Net of Dividends or Distributions","description":"This element represents the undistributed income (or loss) of equity method investments, net of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations; such investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":19000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":19000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":19000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":453000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":453000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":453000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":213000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-21000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-739000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-739000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-739000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-401000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-401000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-401000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-221000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-221000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-221000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-1705000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-1705000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-2166000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeTaxExpenseBenefit":{"label":"Income Tax Expense (Benefit)","description":"Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-8644000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-11318000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-11318000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":6670000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":6670000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":6670000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-4764000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-4764000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-4764000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":1086000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":1086000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":1086000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":20982000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":20982000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":20982000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-8035000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-6913000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-8494000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-8494000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-8494000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-1256000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":6000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":12586000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":12586000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":12586000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":6570000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":6570000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":6570000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":12391000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":12391000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":12391000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-6254000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-6254000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-5356000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeTaxesPaid":{"label":"Income Taxes Paid","description":"The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":2100000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":751000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":751000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":8696000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":8696000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":8696000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":2550000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":2550000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":2550000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":3325000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":3325000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":25171000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"}]}},"IncomeTaxesPaidNet":{"label":"Income Taxes Paid, Net","description":"The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.","units":{"EUR":[{"start":"2018-01-01","end":"2018-12-31","val":3325000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":25171000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":25171000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-889000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-6595000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-484000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-484000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-484000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":160000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-3447000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":-4848000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":-4848000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":-4848000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":9436000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":9436000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":9436000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":32985000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":32985000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":32985000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-1518000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-1518000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":268000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeTaxesReceivable":{"label":"Income Taxes Receivable, Current","description":"Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.","units":{"EUR":[{"end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2092000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":2092000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":281000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":281000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":8565000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":8565000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":7839000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":7839000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":7839000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":8790000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":3527000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":3527000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":498000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":498000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":6774000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":6774000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":2815000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":2815000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":307000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance":{"label":"Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":98000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":98000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":1921000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":1921000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":1921000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-3517000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-3517000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-3517000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-184000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-184000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-184000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":19000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":19000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":19000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":454000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":454000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":454000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":80000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":80000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":80000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-57000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-57000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-57000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":13000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":13000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":550000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"}]}},"IncomeTaxReconciliationForeignIncomeTaxRateDifferential":{"label":"Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-11000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":34000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":34000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":219000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":219000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":219000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":33000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":33000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":33000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-5000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-5000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-5000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":100000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":100000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":100000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":40000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":40000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":40000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":17000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":17000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":17000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":175000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":175000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":175000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-1000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-1000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-10000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"}]}},"IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate":{"label":"Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount","description":"The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-9912000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-15829000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-15829000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-13964000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-13964000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-13964000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-5562000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-5562000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-5562000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-6391000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-6391000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-6391000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":11769000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":11769000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":11769000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-79041000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-79041000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-79041000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":7272000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":7272000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":7272000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-37547000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-37547000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-37547000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-47419000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-47419000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-47419000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-8820000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-8820000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":2507000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible impairment loss.","units":{"EUR":[{"start":"2020-01-01","end":"2020-12-31","val":207600000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":207600000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":207600000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2022-01-01","end":"2022-12-31","val":104600000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":104600000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":181900000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":56807000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount","description":"Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":744000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":4409000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":4409000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":16875000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":16875000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":16875000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":5017000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":5017000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":5017000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":6465000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":6465000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":6465000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":6211000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":6211000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":6211000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":4708000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":4708000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":4708000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":5390000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":5390000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":5390000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":4791000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":4791000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":4791000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":2968000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":2968000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":2968000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":2639000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":2639000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":2446000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeTaxReconciliationOtherReconcilingItems":{"label":"Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":65000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":754000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":754000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":313000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":313000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":284000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-769000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-769000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-775000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":388000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":292000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":292000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-40000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-40000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":-40000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":188000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":188000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":188000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":-56000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":-56000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":-56000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-203000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-203000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-203000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":102000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":102000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":288000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"}]}},"IncomeTaxReconciliationPriorYearIncomeTaxes":{"label":"Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense (benefit).","units":{"EUR":[{"start":"2017-01-01","end":"2017-12-31","val":6000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":96000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":96000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":66000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":66000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":66000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":9000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":9000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":9000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":-294000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":-294000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":-294000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":192000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":192000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":192000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-5000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-5000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":64000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"}]}},"IncomeTaxReconciliationTaxContingencies":{"label":"Effective Income Tax Rate Reconciliation, Tax Contingency, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in income tax contingencies. Including, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-1666000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-1666000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"},{"start":"2023-01-01","end":"2023-12-31","val":-686000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":132000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-8684000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncreaseDecreaseInAccountsPayable":{"label":"Increase (Decrease) in Accounts Payable","description":"The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":6930000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":13102000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":13102000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":13879000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":13879000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":13879000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":13590000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":13590000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":13590000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-18012000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-18012000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-18012000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-665000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-665000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":-665000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-28546000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-17983000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-26620000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-26620000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-26620000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":25456000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":22099000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":6897000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":6897000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":6897000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":5291000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":5291000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":5291000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-2389000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-2389000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-2389000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":6898000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":6898000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":5295000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncreaseDecreaseInAccruedLiabilities":{"label":"Increase (Decrease) in Accrued Liabilities","description":"The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-2351000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":2415000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":2415000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":7486000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":7486000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":4702000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":9183000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":8195000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":8195000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":199000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":199000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":199000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":7591000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":7591000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":7591000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":5032000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":5094000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":2594000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":2594000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":2594000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":2353000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":1280000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":2738000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":2738000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":2738000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-677000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-677000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-677000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":1358000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":1358000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":1358000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-671000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-671000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-7999000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncreaseDecreaseInDeferredRevenue":{"label":"Increase (Decrease) in Deferred Revenue","description":"Amount of increase (decrease) in deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":485000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1780000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":1780000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":2814000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":2814000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":2814000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":3863000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":3863000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":3863000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-773000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-773000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-773000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-2310000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-2310000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":-2310000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-1560000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-1140000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-2550000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-2550000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-2550000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-936000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-502000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":-576000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":-576000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":-576000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-485000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-485000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-485000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-513000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-513000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-513000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-135000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-135000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-277000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncreaseDecreaseInEmployeeRelatedLiabilities":{"label":"Increase (Decrease) in Employee Related Liabilities","description":"The increase (decrease) during the reporting period in the aggregate amount of obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":2784000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":988000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":988000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":2951000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":2951000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":2951000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-4476000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-4476000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":-4476000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-585000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-1034000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-891000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-891000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-891000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":170000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-1307000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":297000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":297000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":297000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-835000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-835000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-835000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-935000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-935000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-935000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-1956000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-1956000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":299000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable":{"label":"Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable","description":"The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":1873000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-25000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-25000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":3177000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":3177000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":3177000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-2097000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-2097000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-2097000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-396000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-396000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-396000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-6099000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-6099000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":-6099000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":264000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":5962000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":242000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":242000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":242000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-947000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":3371000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":8568000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":8568000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":8568000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":10623000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":10623000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":10623000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-16532000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-16532000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-16532000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":4504000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":4504000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":6744000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets":{"label":"Increase (Decrease) in Prepaid Expense and Other Assets","description":"Amount of increase (decrease) in prepaid expenses, and assets classified as other.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":461000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":121000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-63000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":7144000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":6945000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":6945000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":10434000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":10434000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":10434000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-11127000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-11127000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-11127000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-3696000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-3696000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":-3696000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":6143000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-157000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":773000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":773000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":773000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":8802000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":4653000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":2510000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":2510000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":2510000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-1557000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-1557000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-1557000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":3565000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":3565000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":3565000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-5586000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-5586000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-3765000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncreaseDecreaseInReceivables":{"label":"Increase (Decrease) in Receivables","description":"The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":10710000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":18540000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":18540000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":11256000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":11256000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":11256000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":29734000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":29734000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":29734000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":13432000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":13432000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":13432000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-24926000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-24926000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":-24926000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-55490000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-51556000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-53732000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-53732000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-53732000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":38798000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":31722000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":25754000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":25754000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":25754000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":10114000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":10114000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":10114000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-6691000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-6691000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-6691000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":4305000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":4305000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":9421000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncreaseDecreaseInRestrictedCash":{"label":"Increase (Decrease) in Restricted Cash","description":"The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities.","units":{"EUR":[{"start":"2015-01-01","end":"2015-12-31","val":184000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":199000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1815000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"}]}},"IndefiniteLivedIntangibleAssetsExcludingGoodwill":{"label":"Indefinite-lived Intangible Assets (Excluding Goodwill)","description":"Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.","units":{"EUR":[{"end":"2015-12-31","val":169500000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":169500000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":169500000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":169500000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":169500000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":169545000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":169545000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":169545000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":169545000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":169545000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":169545000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":169545000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":169545000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":89545000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":89545000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":75345000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":75345000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":45345000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":45345000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":45345000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"IntangibleAssetsNetExcludingGoodwill":{"label":"Intangible Assets, Net (Excluding Goodwill)","description":"Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.","units":{"EUR":[{"end":"2015-12-31","val":189909000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":176052000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":176052000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":173294000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":173294000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":171609000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":171609000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":169924000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":169924000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":169550000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":169550000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":169550000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":170153000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":170085000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":170085000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":89949000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":89949000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":75614000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":75614000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":45345000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":45345000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":74171000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"IntangibleAssetsNetIncludingGoodwill":{"label":"Intangible Assets, Net (Including Goodwill)","description":"Carrying amount of finite-lived intangible assets, indefinite-lived intangible assets and goodwill. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Intangible assets are assets, not including financial assets, lacking physical substance.","units":{"EUR":[{"end":"2015-12-31","val":680269000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":666555000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":666555000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":663749000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":663749000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":662138000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":662138000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":660514000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":660514000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":452214000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":452214000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":456624000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":456624000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":271876000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":271876000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":75614000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":75614000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":45345000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":45345000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":87968000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"InterestExpense":{"label":"Interest Expense","description":"Amount of the cost of borrowed funds accounted for as interest expense.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":11000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":147000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":147000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":137000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":137000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":137000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":44000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":44000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":44000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":1839000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":1839000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":1839000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":33000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":33000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":33000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":105000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":59000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":270000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":270000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":270000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":202000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":146000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":389000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":389000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":389000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":51000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":51000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":12000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"}]}},"InterestPaid":{"label":"Interest Paid, Including Capitalized Interest, Operating and Investing Activities","description":"Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":11000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":100000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":100000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":160000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":160000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":2000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"}]}},"InterestPaidNet":{"label":"Interest Paid, Excluding Capitalized Interest, Operating Activities","description":"Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":160000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":2000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":2000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":223000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":223000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":223000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":51000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":51000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":51000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":105000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":59000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":217000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":217000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":217000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":196000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":146000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":383000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":383000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":383000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":51000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":51000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":51000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":12000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":12000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":12000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":16000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":16000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":42000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"LeaseAndRentalExpense":{"label":"Operating Leases, Rent Expense","description":"Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.","units":{"EUR":[{"start":"2017-01-01","end":"2017-12-31","val":4800000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":4700000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":4700000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"}]}},"LesseeOperatingLeaseLiabilityPaymentsDue":{"label":"Lessee, Operating Lease, Liability, to be Paid","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease.","units":{"EUR":[{"end":"2019-12-31","val":137120000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":126574000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":61280000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":57455000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":51496000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":47829000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":44468000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive":{"label":"Lessee, Operating Lease, Liability, to be Paid, after Year Five","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2019-12-31","val":95592000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":87252000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":40639000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":37080000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":33520000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":29959000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":26401000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths":{"label":"Lessee, Operating Lease, Liability, to be Paid, Year One","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2019-12-31","val":8718000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":10583000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":3826000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":5979000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":3656000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3630000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":3678000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"LesseeOperatingLeaseLiabilityPaymentsDueYearFive":{"label":"Lessee, Operating Lease, Liability, to be Paid, Year Five","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2019-12-31","val":7816000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":7098000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":3560000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":3560000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":3560000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3560000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":3560000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"LesseeOperatingLeaseLiabilityPaymentsDueYearFour":{"label":"Lessee, Operating Lease, Liability, to be Paid, Year Four","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2019-12-31","val":7816000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":7114000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":3630000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":3560000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":3560000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3560000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":3560000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"LesseeOperatingLeaseLiabilityPaymentsDueYearThree":{"label":"Lessee, Operating Lease, Liability, to be Paid, Year Three","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2019-12-31","val":8473000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":7114000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":3646000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":3630000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":3560000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3560000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":3590000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"LesseeOperatingLeaseLiabilityPaymentsDueYearTwo":{"label":"Lessee, Operating Lease, Liability, to be Paid, Year Two","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2019-12-31","val":8705000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":7413000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":5979000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":3646000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":3640000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3560000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":3679000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"LesseeOperatingLeaseLiabilityUndiscountedExcessAmount":{"label":"Lessee, Operating Lease, Liability, Undiscounted Excess Amount","description":"Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.","units":{"EUR":[{"end":"2019-12-31","val":37423000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":33407000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":13744000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":12188000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":10761000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":9396000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":8126000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"LessorOperatingLeasePaymentsToBeReceived":{"label":"Lessor, Operating Lease, Payments to be Received","description":"Amount of lease payments to be received by lessor for operating lease.","units":{"EUR":[{"end":"2019-12-31","val":1000000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"}]}},"LiabilitiesAndStockholdersEquity":{"label":"Liabilities and Equity","description":"Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.","units":{"EUR":[{"end":"2015-12-31","val":760255000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1007246000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":1007246000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1078454000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":1078454000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1095543000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":1095543000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1108011000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":1108011000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":830898000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":830898000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":830898000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":811043000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":834519000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":834519000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":691592000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":691592000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":325069000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":325069000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":300717000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":300717000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":358449000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"LiabilitiesCurrent":{"label":"Liabilities, Current","description":"Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.","units":{"EUR":[{"end":"2015-12-31","val":72009000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":61103000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":61103000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":78387000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":78387000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":60921000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":60921000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":63348000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":63348000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":34712000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":34712000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":34712000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":56018000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":42466000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":42466000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":49622000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":49622000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":35987000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":35987000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":49679000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":49679000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":96503000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"LinesOfCreditFairValueDisclosure":{"label":"Lines of Credit, Fair Value Disclosure","description":"Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time.","units":{"EUR":[{"end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"}]}},"LoansAndLeasesReceivableRelatedParties":{"label":"Loans and Leases Receivable, Related Parties","description":"For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.","units":{"EUR":[{"end":"2016-06-30","val":7100000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-06-30","val":7100000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2016-06-30","val":7100000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q2I"}]}},"MinorityInterest":{"label":"Stockholders' Equity Attributable to Noncontrolling Interest","description":"Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).","units":{"EUR":[{"end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":199813000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":199813000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"}]}},"MinorityInterestOwnershipPercentageByNoncontrollingOwners":{"label":"Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners","description":"The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.","units":{"pure":[{"end":"2016-12-31","val":0.317,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":0.317,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2016-12-31","val":0.317,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"}]}},"MinorityInterestOwnershipPercentageByParent":{"label":"Noncontrolling Interest, Ownership Percentage by Parent","description":"The parent entity's interest in net assets of the subsidiary, expressed as a percentage.","units":{"pure":[{"end":"2016-12-31","val":0.683,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":0.683,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2016-12-31","val":0.683,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"}]}},"NetCashProvidedByUsedInFinancingActivities":{"label":"Net Cash Provided by (Used in) Financing Activities","description":"Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":1039000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":18971000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":18971000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":187644000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":187644000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":187644000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-7216000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-7216000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-7216000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":161000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":161000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":161000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-99000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-99000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":-99000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-95000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-53000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-180000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-180000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-180000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":1098000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-8000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":1053000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":1053000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":1053000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-19621000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-19621000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-19621000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-190442000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-190442000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-190442000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-774000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-774000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-1265000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"NetCashProvidedByUsedInInvestingActivities":{"label":"Net Cash Provided by (Used in) Investing Activities","description":"Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-4623000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-6510000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-6510000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-8995000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-8995000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-8995000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-18286000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-18286000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-18286000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-24145000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-24145000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-24145000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-17981000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-17981000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":-17981000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-11988000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-1373000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-16189000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-16189000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-16189000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":2621000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":7927000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":10018000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":10018000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":10018000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-54910000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-54910000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-54910000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":16289000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":16289000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":16289000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":12220000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":12220000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-9226000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"NetCashProvidedByUsedInOperatingActivities":{"label":"Net Cash Provided by (Used in) Operating Activities","description":"Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":630000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-1015000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-1015000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":31147000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":31147000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":31346000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-10336000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-8521000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-8521000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-4584000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-4584000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-4584000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":74221000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":74221000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":74221000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":5228000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":21369000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":7872000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":7872000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":7872000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-21394000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-7390000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":32536000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":32536000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":32536000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":66268000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":66268000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":66268000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":27801000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":27801000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":27801000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":20250000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":20250000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":7731000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"NetIncomeLoss":{"label":"Net Income (Loss) Attributable to Parent","description":"The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-23096000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-39127000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-39127000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-50681000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-50681000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-50681000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2016-12-16","end":"2016-12-31","val":900000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-12-16","end":"2016-12-31","val":900000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-12-16","end":"2016-12-31","val":900000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"},{"start":"2017-01-01","end":"2017-12-31","val":-12481000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-12481000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-12481000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-21489000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-21489000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":17161000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-245378000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":10704000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":10704000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-127218000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-127218000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-127218000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-164476000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-164476000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-164476000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-23698000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-23698000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":11220000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"NetIncomeLossAttributableToNoncontrollingInterest":{"label":"Net Income (Loss) Attributable to Noncontrolling Interest","description":"Amount of Net Income (Loss) attributable to noncontrolling interest.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-239000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-239000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-710000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-710000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-710000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2016-12-16","end":"2016-12-31","val":285000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-12-16","end":"2016-12-31","val":-285000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-12-16","end":"2016-12-31","val":-285000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"},{"start":"2017-01-01","end":"2017-12-31","val":-568000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-568000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-568000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"}]}},"NetIncomeLossAttributableToRedeemableNoncontrollingInterest":{"label":"Net Income (Loss) Attributable to Redeemable Noncontrolling Interest","description":"Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.","units":{"EUR":[{"start":"2015-01-01","end":"2015-12-31","val":-239000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-239000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-15","val":-952000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-15","val":-952000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-15","val":-952000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-995000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-995000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2016-12-16","end":"2016-12-31","val":-43000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-12-16","end":"2016-12-31","val":-43000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-12-16","end":"2016-12-31","val":-43000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"},{"start":"2017-01-01","end":"2017-12-31","val":-110000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-110000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"}]}},"NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest":{"label":"Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest","description":"Amount after income tax of income (loss) including the portion attributable to nonredeemable noncontrolling interest. Excludes the portion attributable to redeemable noncontrolling interest recognized as temporary equity.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-23096000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-39127000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-39127000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-15","val":-51581000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-15","val":-51581000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-15","val":-51581000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2016-12-16","end":"2016-12-31","val":1185000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-12-16","end":"2016-12-31","val":1185000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-12-16","end":"2016-12-31","val":1185000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"},{"start":"2017-01-01","end":"2017-12-31","val":-12940000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-12940000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-12940000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-21489000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-21489000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-21489000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":17161000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":17161000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":17161000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-234424000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-20158000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-245378000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-245378000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-10029000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-3289000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":10704000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"}]}},"NoncontrollingInterestDecreaseFromDeconsolidation":{"label":"Noncontrolling Interest, Decrease from Deconsolidation","description":"The amount of the reduction or elimination during the period of a noncontrolling interest resulting from the parent's loss of control and deconsolidation of the entity in which one or more outside parties had a noncontrolling interest.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":390000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":390000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"}]}},"NoncontrollingInterestIncreaseFromBusinessCombination":{"label":"Noncontrolling Interest, Increase from Business Combination","description":"Amount of increase in noncontrolling interest from a business combination.","units":{"EUR":[{"start":"2015-01-01","end":"2015-12-31","val":2230000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016"}]}},"NonoperatingIncomeExpense":{"label":"Nonoperating Income (Expense)","description":"The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-1446000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-2814000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-2814000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-276000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-276000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-276000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":2555000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":2555000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":2555000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-1300000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-1300000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-1300000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-461000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-461000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":-461000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-703000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-333000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-482000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-482000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-482000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":430000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-420000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":13239000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":13239000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":13239000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":15000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":15000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":15000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":4723000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":4723000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":4723000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":3904000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":3904000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":6500000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"NumberOfOperatingSegments":{"label":"Number of Operating Segments","description":"Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.","units":{"segment":[{"start":"2016-01-01","end":"2016-12-31","val":3,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016"},{"start":"2016-07-01","end":"2016-12-31","val":3,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2017-01-01","end":"2017-12-31","val":3,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":3,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":3,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":3,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":3,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-01-01","end":"2021-12-31","val":3,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":3,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":3,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"}]}},"NumberOfReportableSegments":{"label":"Number of Reportable Segments","description":"Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.","units":{"segment":[{"start":"2014-01-01","end":"2014-12-31","val":1,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":1,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-06-30","val":1,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-06-30","val":1,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2016-07-01","end":"2016-12-31","val":3,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-07-01","end":"2016-12-31","val":3,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-07-01","end":"2016-12-31","val":3,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":3,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":3,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":3,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":3,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":3,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-01-01","end":"2021-12-31","val":3,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":3,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":3,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":3,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":3,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"NumberOfReportingUnits":{"label":"Number of Reporting Units","description":"Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.","units":{"reporting_unit":[{"start":"2016-01-01","end":"2016-12-31","val":3,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":3,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":3,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":3,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":3,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":3,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":3,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":3,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"}],"segment":[{"start":"2017-01-01","end":"2017-12-31","val":3,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":3,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":3,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"}]}},"OperatingIncomeLoss":{"label":"Operating Income (Loss)","description":"The net result for the period of deducting operating expenses from operating revenues.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-30294000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-47870000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-47870000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-44445000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-44445000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-44445000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-20368000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-20368000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-20368000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-19166000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-19166000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-19166000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":38151000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":38151000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":38151000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-241969000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-26717000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-252651000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-252651000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-252651000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-11715000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-2863000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":10051000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":10051000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":10051000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-120262000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-120262000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-120262000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-156587000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-156587000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-156587000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-32151000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":-32151000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":1530000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"OperatingLeaseCost":{"label":"Operating Lease, Cost","description":"Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.","units":{"EUR":[{"start":"2019-01-01","end":"2019-12-31","val":10000000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":10000000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":8200000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":8200000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":5100000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":5100000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":5100000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":4900000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":4900000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":4900000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":4200000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":4200000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":4200000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":3800000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":3800000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":3800000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"OperatingLeaseLiability":{"label":"Operating Lease, Liability","description":"Present value of lessee's discounted obligation for lease payments from operating lease.","units":{"EUR":[{"end":"2019-12-31","val":99697000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":99697000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":93167000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":93167000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-01-29","val":36400000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-01-29","val":36400000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2021-12-31","val":47536000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":47536000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":45267000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":45267000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":40735000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":38433000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":36342000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"OperatingLeaseLiabilityCurrent":{"label":"Operating Lease, Liability, Current","description":"Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.","units":{"EUR":[{"end":"2019-12-31","val":5037000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":5037000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":7188000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":7188000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":7188000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":2247000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":2269000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":2269000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":4538000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":4538000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":2301000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":2301000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":2363000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":2363000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":2486000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"OperatingLeaseLiabilityNoncurrent":{"label":"Operating Lease, Liability, Noncurrent","description":"Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.","units":{"EUR":[{"end":"2019-12-31","val":94660000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":94660000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":85979000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":85979000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":85979000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":46405000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":45267000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":45267000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":40729000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":40729000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":38434000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":38434000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":36070000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":36070000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":33856000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"OperatingLeasePayments":{"label":"Operating Lease, Payments","description":"Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.","units":{"EUR":[{"start":"2019-01-01","end":"2019-12-31","val":10200000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":10200000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":5225000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":5225000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":10468000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":10468000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":3828000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":3828000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":3722000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":3722000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":3647000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":3647000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":3670000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"OperatingLeaseRightOfUseAsset":{"label":"Operating Lease, Right-of-Use Asset","description":"Amount of lessee's right to use underlying asset under operating lease.","units":{"EUR":[{"end":"2019-12-31","val":96030000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":96030000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":86810000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":86810000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":86810000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-01-29","val":34700000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-01-29","val":34700000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2021-06-30","val":49953000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":48323000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":48323000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":45028000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":45028000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":42273000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":42273000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":39865000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":39865000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":37631000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDue":{"label":"Operating Leases, Future Minimum Payments Due","description":"Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.","units":{"EUR":[{"end":"2016-12-31","val":70757000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":73424000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":76879000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueCurrent":{"label":"Operating Leases, Future Minimum Payments Due, Next Twelve Months","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"EUR":[{"end":"2016-12-31","val":4035000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":7461000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":10348000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals":{"label":"Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals","description":"Contractually required future rental payments receivable on noncancelable subleasing arrangements.","units":{"EUR":[{"end":"2018-12-31","val":1900000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInFiveYears":{"label":"Operating Leases, Future Minimum Payments, Due in Five Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"EUR":[{"end":"2016-12-31","val":6799000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":7639000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":7505000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInFourYears":{"label":"Operating Leases, Future Minimum Payments, Due in Four Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"EUR":[{"end":"2016-12-31","val":6799000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":8120000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":8730000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInThreeYears":{"label":"Operating Leases, Future Minimum Payments, Due in Three Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"EUR":[{"end":"2016-12-31","val":8324000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":8299000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":9137000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInTwoYears":{"label":"Operating Leases, Future Minimum Payments, Due in Two Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"EUR":[{"end":"2016-12-31","val":6367000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":9717000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":9143000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueThereafter":{"label":"Operating Leases, Future Minimum Payments, Due Thereafter","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"EUR":[{"end":"2016-12-31","val":38433000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":32188000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":32016000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"}]}},"OperatingLeasesRentExpenseNet":{"label":"Operating Leases, Rent Expense, Net","description":"Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":2200000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":3300000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":3300000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":4600000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":4600000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":4600000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":4800000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":4800000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":4700000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018"}]}},"OperatingLeasesRentExpenseSubleaseRentals1":{"label":"Operating Leases, Rent Expense, Sublease Rentals","description":"The total amount of sublease rental income recognized during the period that reduces the entity's rent expense incurred under operating leases.","units":{"EUR":[{"start":"2018-01-01","end":"2018-12-31","val":100000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":100000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"}]}},"OperatingLeaseWeightedAverageDiscountRatePercent":{"label":"Operating Lease, Weighted Average Discount Rate, Percent","description":"Weighted average discount rate for operating lease calculated at point in time.","units":{"pure":[{"end":"2019-12-31","val":0.038,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":0.038,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":0.039,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":0.039,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":0.034,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":0.034,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":0.034,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":0.034,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":0.034,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":0.034,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":0.034,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":0.034,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":0.034,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"OperatingLossCarryforwards":{"label":"Operating Loss Carryforwards","description":"Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.","units":{"EUR":[{"end":"2016-12-31","val":3600000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":3200000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2016-12-31","val":3200000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2500000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":3200000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2017-12-31","val":3200000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2017-12-31","val":3200000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2017Q4I"},{"end":"2018-12-31","val":700000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2020-12-31","val":500000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":1400000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1300000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":1300000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1300000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"}]}},"OperatingLossCarryforwardsValuationAllowance":{"label":"Operating Loss Carryforwards, Valuation Allowance","description":"The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized.","units":{"EUR":[{"end":"2016-12-31","val":3600000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"}]}},"OtherAssetImpairmentCharges":{"label":"Other Asset Impairment Charges","description":"The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.","units":{"EUR":[{"start":"2018-01-01","end":"2018-12-31","val":1437000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":96000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":96000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":549000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":549000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":549000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":893000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":893000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":893000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"}]}},"OtherAssetsCurrent":{"label":"Other Assets, Current","description":"Amount of current assets classified as other.","units":{"EUR":[{"end":"2016-12-31","val":2925000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2426000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":2426000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":738000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":738000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":383000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":383000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":4009000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":4009000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":4009000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":1007000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":227000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":227000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":350000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":350000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":210000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":210000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":201000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":201000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":901000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"OtherAssetsNoncurrent":{"label":"Other Assets, Noncurrent","description":"Amount of noncurrent assets classified as other.","units":{"EUR":[{"end":"2015-12-31","val":936000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":955000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":955000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":6955000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":6955000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":6148000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":6148000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":7274000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":7274000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":4399000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":4399000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":4399000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":3445000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":3250000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":3250000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":8409000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":8409000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":9176000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":3847000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3856000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":3856000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":2636000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax":{"label":"Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax","description":"Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-166000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-166000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":161000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":161000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":161000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-201000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-201000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-201000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":91000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":91000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":91000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":151000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":151000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":151000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":29000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-5000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-58000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-58000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-8000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":7000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":32000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"}]}},"OtherComprehensiveIncomeLossNetOfTax":{"label":"Other Comprehensive Income (Loss), Net of Tax","description":"Amount after tax and reclassification adjustments of other comprehensive income (loss).","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-166000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-166000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":161000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":161000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":161000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-201000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-201000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-201000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":91000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":91000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":91000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":151000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":151000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":151000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":29000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-5000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-58000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-58000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-8000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":7000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":32000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"}]}},"OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent":{"label":"Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent","description":"Amount after tax of other comprehensive income (loss) attributable to parent entity.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-12000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-12000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":33000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":33000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":33000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-201000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-201000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-201000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":91000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":91000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":91000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":151000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":151000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":151000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":29000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-5000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-58000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-58000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-58000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-8000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":7000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":32000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":32000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":32000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":18000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":18000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":18000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":21000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":21000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":21000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":192000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":192000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-1233000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"OtherIncome":{"label":"Other Income","description":"Amount of revenue and income classified as other.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":2834000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":3539000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":3539000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":1131000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":1131000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":1131000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":2841000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":2841000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":2841000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":970000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":293000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":2899000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":2899000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":1522000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":812000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":8109000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"}]}},"OtherLiabilitiesNoncurrent":{"label":"Other Liabilities, Noncurrent","description":"Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.","units":{"EUR":[{"end":"2015-12-31","val":5896000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":38565000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":38565000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":97787000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":5465000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":6784000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":6784000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":4289000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":4289000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":3514000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":3514000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":3514000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":3232000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":3192000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":3192000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":9455000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":9455000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":9075000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":9075000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":565000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":565000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":601000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"OtherNonoperatingExpense":{"label":"Other Nonoperating Expense","description":"Amount of expense related to nonoperating activities, classified as other.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":155000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016"}]}},"OtherNonoperatingIncomeExpense":{"label":"Other Nonoperating Income (Expense)","description":"Amount of income (expense) related to nonoperating activities, classified as other.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-1435000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-2667000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-2667000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-139000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-139000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-139000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":592000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":592000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":592000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":539000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":539000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":539000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-428000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-428000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":-428000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-598000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-274000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-212000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-212000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-212000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":632000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-274000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":13628000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":13628000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":13454000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":66000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":-556000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-556000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-478000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-478000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-478000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":362000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":362000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":4079000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"OtherPrepaidExpenseCurrent":{"label":"Other Prepaid Expense, Current","description":"Amount of asset related to consideration paid in advance for other costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.","units":{"EUR":[{"end":"2016-12-31","val":3301000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":3755000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":3755000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1341000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":1341000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2076000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":2076000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":4132000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":4132000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":4132000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":3056000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":4968000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":4968000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":2035000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":2035000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":4393000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":4393000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":4022000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":4022000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":5179000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"OtherSalesRevenueNet":{"label":"Other Revenue, Net (Deprecated 2018-01-31)","description":"Amount, after sales adjustments, returns, allowances, and discounts, of revenue classified as other.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":180000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":2843000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":2843000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":8345000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":8345000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":15050000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"}]}},"OtherSellingAndMarketingExpense":{"label":"Other Selling and Marketing Expense","description":"Amount of selling and marketing expense classified as other.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":14867000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":29046000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":29046000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":51277000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":49772000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":49772000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":62240000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":62240000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":62240000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":73175000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":73175000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":73175000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":47450000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":47450000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":47450000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":16204000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":7382000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":28281000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":28281000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":28281000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":11449000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":6753000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":25646000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":25646000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":25646000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":24701000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":24701000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":24701000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":22492000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":22492000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":22492000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":22873000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":22873000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":27358000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"PaymentsForCapitalImprovements":{"label":"Payments for Capital Improvements","description":"The cash outflow for acquisition of or capital improvements to properties held for investment (operating, managed, leased) or for use.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":3726000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":6224000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":6224000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":8121000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":8121000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":8121000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":17364000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":17364000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":17364000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":24779000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":24779000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":24779000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":8017000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":8017000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":8017000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":3175000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":1410000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":5501000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":5501000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":5501000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":1798000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":734000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":3781000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":3781000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":3781000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":3976000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":3976000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":3976000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":3514000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":3514000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":3514000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":2800000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":2800000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":4512000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"PaymentsForEnvironmentalLiabilities":{"label":"Payments for Environmental Liabilities","description":"Cash outflows made during the period for environmental remediation activities.","units":{"EUR":[{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":209000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":209000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":209000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":35000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":35000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":137000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":137000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":137000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":5000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":5000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":5000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":5000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"}]}},"PaymentsOfStockIssuanceCosts":{"label":"Payments of Stock Issuance Costs","description":"The cash outflow for cost incurred directly with the issuance of an equity security.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":882000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":882000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":882000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":4038000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":4038000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":4038000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"}]}},"PaymentsRelatedToTaxWithholdingForShareBasedCompensation":{"label":"Payment, Tax Withholding, Share-based Payment Arrangement","description":"Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.","units":{"EUR":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":3062000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":3062000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":3062000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":6380000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":6380000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":6380000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":699000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":699000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":1173000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"PaymentsToAcquireBusinessesNetOfCashAcquired":{"label":"Payments to Acquire Businesses, Net of Cash Acquired","description":"The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":897000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":286000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":286000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":673000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":673000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":673000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":3038000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":4302000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":4302000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":4302000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":14986000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"PaymentsToAcquireInterestInSubsidiariesAndAffiliates":{"label":"Payments to Acquire Interest in Subsidiaries and Affiliates","description":"The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity).","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":874000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":874000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":874000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018"}]}},"PaymentsToAcquireInvestments":{"label":"Payments to Acquire Investments","description":"The cash outflow associated with the purchase of all investments (debt, security, other) during the period.","units":{"EUR":[{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":10000000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":10000000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":10000000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":8850000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":8850000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":8850000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":8850000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":1351000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":1351000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":1351000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":1351000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":1351000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":50000000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":50000000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":50000000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":25225000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":25225000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":25225000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":2240000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"PaymentsToMinorityShareholders":{"label":"Payments to Noncontrolling Interests","description":"Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.","units":{"EUR":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":158000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":158000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":158000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019"}]}},"PrepaidAdvertising":{"label":"Prepaid Advertising","description":"Amount of consideration paid in advance for advertising that provides economic benefits within a future period of one year or the normal operating cycle, if longer.","units":{"EUR":[{"end":"2014-12-31","val":4500000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014Q4I"},{"end":"2015-12-31","val":3800000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":3400000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":5303000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":12577000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":12577000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":6267000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":6267000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2148000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":2148000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":2297000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":2297000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":2297000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":12393000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":5078000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":5078000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":6284000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":6284000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":6429000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":6429000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":2135000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":2135000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":289000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"PrepaidExpenseAndOtherAssetsCurrent":{"label":"Prepaid Expense and Other Assets, Current","description":"Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.","units":{"EUR":[{"end":"2015-12-31","val":4603000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":11529000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":11529000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":18758000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":18758000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":8346000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":8346000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":4607000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":4607000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":10438000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":10438000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":10438000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":16456000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":10273000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":10273000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":8669000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":8669000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":11032000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":11032000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":6458000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":6458000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":6369000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates":{"label":"Proceeds from Divestiture of Businesses and Interests in Affiliates","description":"The cash inflow associated with the amount received from the sale of a business segment or subsidiary or sale of an entity that is related to it but not strictly controlled during the period (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment).","units":{"EUR":[{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":556000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":556000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":556000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-4302000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"}]}},"ProceedsFromIssuanceOfCommonStock":{"label":"Proceeds from Issuance of Common Stock","description":"The cash inflow from the additional capital contribution to the entity.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":207840000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":207840000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":208526000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":42000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":161000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018"}]}},"ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans":{"label":"Proceeds, Issuance of Shares, Share-based Payment Arrangement, Excluding Option Exercised","description":"Amount of cash inflow from issuance of shares under share-based payment arrangement. Excludes option exercised.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":10000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":1000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016"}]}},"ProceedsFromLinesOfCredit":{"label":"Proceeds from Lines of Credit","description":"Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":20000000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":20000000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":20000000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":20000000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":20000000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018"}]}},"ProceedsFromRelatedPartyDebt":{"label":"Proceeds from Related Party Debt","description":"The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":1039000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":7129000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":7129000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"}]}},"ProceedsFromSaleMaturityAndCollectionsOfInvestments":{"label":"Proceeds from Sale, Maturity and Collection of Investments","description":"The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period.","units":{"EUR":[{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":10000000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":10000000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":19338000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":19338000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":19338000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":5000000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":5000000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":5000000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":45000000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":45000000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":45000000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":25225000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":25225000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":11240000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ProceedsFromSaleOfPropertyPlantAndEquipment":{"label":"Proceeds from Sale of Property, Plant, and Equipment","description":"The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":634000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":634000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":634000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":36000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":36000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":36000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":37000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":37000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":644000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":644000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":644000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":72000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":12000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":114000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":114000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":114000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":17000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":17000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":17000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":28000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":28000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":28000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":6000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":6000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":13000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ProceedsFromStockOptionsExercised":{"label":"Proceeds from Stock Options Exercised","description":"Amount of cash inflow from exercise of option under share-based payment arrangement.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":10000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-07-01","end":"2016-09-30","val":700000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-07-01","end":"2016-09-30","val":700000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-07-01","end":"2016-09-30","val":700000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":685000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":686000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":686000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":42000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":42000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":42000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":161000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":161000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":161000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":202000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":202000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":202000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":40000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":15000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":87000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":87000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":87000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":1230000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":58000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":1270000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":1270000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":1270000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":118000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":118000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":118000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":365000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":365000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":365000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ProfitLoss":{"label":"Net Income (Loss), Including Portion Attributable to Noncontrolling Interest","description":"The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":-23096000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-39366000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-39366000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-51391000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":-51391000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":-51391000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2016-12-16","end":"2016-12-31","val":1185000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-12-16","end":"2016-12-31","val":1185000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-12-16","end":"2016-12-31","val":1185000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"},{"start":"2017-01-01","end":"2017-12-31","val":-13049000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-13049000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-13049000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-21489000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-21489000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":-21489000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":17161000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":17161000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":17161000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":-234424000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-20158000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":-245378000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":-245378000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":-10029000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-3289000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":10704000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"}]}},"PropertyPlantAndEquipmentGross":{"label":"Property, Plant and Equipment, Gross","description":"Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.","units":{"EUR":[{"end":"2015-12-31","val":13024000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":21223000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":21223000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":35065000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":35065000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":160544000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":160544000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":67133000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"}]}},"PropertyPlantAndEquipmentNet":{"label":"Property, Plant and Equipment, Net","description":"Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.","units":{"EUR":[{"end":"2015-12-31","val":12853000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":46862000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":46862000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":114471000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":114471000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":162001000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":162001000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":33172000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":33172000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":26682000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":26682000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":26682000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":17994000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":15905000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":15905000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":13075000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":13075000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":10079000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":10079000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":8210000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":8210000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":8810000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"ProvisionForDoubtfulAccounts":{"label":"Accounts Receivable, Credit Loss Expense (Reversal)","description":"Amount of expense (reversal of expense) for expected credit loss on accounts receivable.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":408000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-410000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":-410000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":1589000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":1589000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":1589000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":78000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":78000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":78000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":630000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":630000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":630000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":754000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":754000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":754000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":2386000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":-2390000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":656000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":656000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":656000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":37000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":-40000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":255000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":255000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":255000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":228000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":228000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":228000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":640000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":640000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":640000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":89000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":89000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-43000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"PurchaseObligation":{"label":"Purchase Obligation","description":"Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.","units":{"EUR":[{"end":"2016-12-31","val":40374000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":13259000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":19812000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":11941000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":17765000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":48818000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":48462000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":26845000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":37207000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":30713000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"PurchaseObligationDueAfterFifthYear":{"label":"Purchase Obligation, to be Paid, after Year Five","description":"Amount of purchase arrangement to be paid after fifth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"PurchaseObligationDueInFourthAndFifthYear":{"label":"Purchase Obligation, to be Paid, Year Four and Five","description":"Amount of purchase arrangement to be paid in fourth and fifth fiscal years following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":40000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":7900000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":59000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"PurchaseObligationDueInNextTwelveMonths":{"label":"Purchase Obligation, to be Paid, Year One","description":"Amount of purchase arrangement to be paid in next fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2016-12-31","val":31374000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":13259000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":19812000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":11941000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":12223000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":19165000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":22402000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":14539000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":10395000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":11565000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"PurchaseObligationDueInSecondAndThirdYear":{"label":"Purchase Obligation, to be Paid, Year Two and Three","description":"Amount of purchase arrangement to be paid in second and third fiscal years following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"EUR":[{"end":"2016-12-31","val":9000000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":5542000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":29653000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":26060000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":12266000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":18912000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":19089000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"RedeemableNoncontrollingInterestEquityCarryingAmount":{"label":"Redeemable Noncontrolling Interest, Equity, Carrying Amount","description":"As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.","units":{"EUR":[{"end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2076000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2015-12-31","val":2076000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015Q4I"},{"end":"2016-12-31","val":351000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":351000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2016-12-31","val":351000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"}]}},"RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty":{"label":"Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party","description":"Amount of selling, general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":1506000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":2826000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":4185000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016"}]}},"RepaymentsOfLinesOfCredit":{"label":"Repayments of Lines of Credit","description":"Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":40000000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":40000000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":40000000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018"}]}},"RepaymentsOfRelatedPartyDebt":{"label":"Repayments of Related Party Debt","description":"The cash outflow for the payment of a long-term borrowing made from a related party where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Payments for Advances from Affiliates.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1039000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":1039000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"}]}},"RestrictedCashAndCashEquivalents":{"label":"Restricted Cash and Cash Equivalents","description":"Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"EUR":[{"end":"2016-12-31","val":900000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2700000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":2700000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2400000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":2.4,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2.4,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":2400000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":2400000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":2400000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":2400000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":300000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":300000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"}]}},"RestrictedCashAndCashEquivalentsAtCarryingValue":{"label":"Restricted Cash and Cash Equivalents, Current","description":"Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"EUR":[{"end":"2015-12-31","val":685000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":884000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":884000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":103000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":103000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":122000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":122000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":122000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":122000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":103000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":103000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":103000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":0,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":342000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":342000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":342000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":342000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":342000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":342000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":135000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"RestrictedCashAndCashEquivalentsNoncurrent":{"label":"Restricted Cash and Cash Equivalents, Noncurrent","description":"Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"EUR":[{"end":"2017-12-31","val":2600000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2300000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2300000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":2300000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":2300000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q4I"},{"end":"2021-06-30","val":300000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"}]}},"RestructuringCharges":{"label":"Restructuring Charges","description":"Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.","units":{"EUR":[{"start":"2020-01-01","end":"2020-12-31","val":6200000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":6200000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"}]}},"RetainedEarningsAccumulatedDeficit":{"label":"Retained Earnings (Accumulated Deficit)","description":"The cumulative amount of the reporting entity's undistributed earnings or deficit.","units":{"EUR":[{"end":"2015-12-31","val":-129156000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":-179837000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":-179837000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":-192318000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":-192318000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":-213664000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":-213664000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":-192704000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":-192704000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":-438082000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":-438082000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":-438082000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":-448111000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":-427378000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":-427378000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":-554596000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":-554596000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":-737832000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":-737832000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":-761530000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":-761530000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":-750310000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"RevenueFromContractWithCustomerIncludingAssessedTax":{"label":"Revenue from Contract with Customer, Including Assessed Tax","description":"Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":485942000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":667802000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":667802000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":583395000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":583395000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":583395000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":554046000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":554046000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":554046000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":106880000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":13591000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":181491000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":181491000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":181491000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":105946000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":75337000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":270110000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":270110000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":361465000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":361697000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":535004000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":535004000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":485031000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":485031000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":485031000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":460849000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":460849000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":548912000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"RevenueFromRelatedParties":{"label":"Revenue from Related Parties","description":"Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":100195000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":194241000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":194241000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":268227000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":268227000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":268227000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":367581000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":367581000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":367581000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":331421000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":331421000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":331421000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":284571000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":284571000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":284571000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":49055000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":2541000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":67430000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":67430000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":67430000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":27754000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":20137000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":91355000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":91355000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":173307000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"}]}},"Revenues":{"label":"Revenues","description":"Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":309332000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":493083000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":493083000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":754169000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":754169000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":754169000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1035383000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":1035383000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":1035383000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":914816000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":914816000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":914816000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":838617000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":838617000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":838617000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":155935000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":16132000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":248921000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":248921000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":248921000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":133700000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":95474000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":361465000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":361465000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":535004000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"}]}},"RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability":{"label":"Right-of-Use Asset Obtained in Exchange for Operating Lease Liability","description":"Amount of increase in right-of-use asset obtained in exchange for operating lease liability.","units":{"EUR":[{"start":"2019-01-01","end":"2019-12-31","val":103498000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":103498000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":417000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":417000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"}]}},"SalesRevenueServicesNet":{"label":"Sales Revenue, Services, Net (Deprecated 2018-01-31)","description":"Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":209137000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":298842000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":298842000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":485942000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":485942000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":667802000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"}]}},"SellingAndMarketingExpense":{"label":"Selling and Marketing Expense","description":"The aggregate total amount of expenses directly related to the marketing or selling of products or services.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":286234000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":461219000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":461219000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":674729000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":673224000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":673224000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":946925000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":946925000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":946925000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":805633000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":805633000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":805633000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":664155000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":664155000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":664155000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":124224000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":12847000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":178255000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":178255000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":178255000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":94703000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":71366000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":249196000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":249196000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":249196000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":342024000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":342024000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":342024000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":345639000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":345639000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":345639000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":368249000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":368249000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":445578000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ShareBasedCompensation":{"label":"Share-based Payment Arrangement, Noncash Expense","description":"Amount of noncash expense for share-based payment arrangement.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":2382000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":14129000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":14129000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":53722000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":53722000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":53722000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":16025000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":16025000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":16025000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":20702000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":20702000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":20702000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":19891000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":19891000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":19891000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":7687000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":4186000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":15079000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":15079000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":15079000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":8015000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":4896000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":17261000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":17261000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":17261000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":15342000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":15342000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":15342000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":9505000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":9505000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":9505000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":8451000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":8451000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":7832000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate","description":"The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.","units":{"pure":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate","description":"The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.","units":{"pure":[{"start":"2014-01-01","end":"2014-12-31","val":0.46,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.46,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":0.46,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.46,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":0.46,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":0.46,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0.41,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0.41,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0.41,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0.33,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0.33,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0.33,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.5,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":0.5,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0.5,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0.6,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":0.6,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":0.6,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0.71,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0.71,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":0.71,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0.69,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":0.69,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":0.69,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0.68,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":0.68,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":0.68,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0.67,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":0.67,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0.65,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate","description":"The risk-free interest rate assumption that is used in valuing an option on its own shares.","units":{"pure":[{"start":"2014-01-01","end":"2014-12-31","val":0.0131,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.0131,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":0.0131,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.0131,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":0.0131,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":0.0131,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0.0218,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0.0218,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0.0218,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0.0174,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0.0174,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0.0174,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.0056,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":-0.0056,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0.0056,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-0.002,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":0.002,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":-0.002,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0.0046,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":-0.0046,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":-0.0046,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0.0104,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":0.0104,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":0.0104,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0.0331,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":0.0331,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":0.0331,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0.039,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":0.039,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0.0283,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number","description":"The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.","units":{"shares":[{"end":"2016-12-31","val":517,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":5304662,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":7057182,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":10456082,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":14204833,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-06-30","val":13954858,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":12605128,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":15617002,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":7978490,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":8017525,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price","description":"The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.","units":{"EUR/shares":[{"end":"2016-12-31","val":209,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1.57,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":4.08,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":3.66,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":5.01,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-06-30","val":5.02,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":4.54,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":3.57,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":7,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3.11,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value","description":"Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.","units":{"EUR":[{"start":"2015-01-01","end":"2015-12-31","val":16200000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":14860000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":14860000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":14860000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":2855000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":2855000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":2855000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":5034000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":5034000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":5034000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":2168000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":2168000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":2200000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":10769000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":10800000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":10800000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":3100000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":3100000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":3100000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":12400000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":12400000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":12400000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":400000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":400000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period","description":"For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.","units":{"shares":[{"start":"2016-01-01","end":"2016-12-31","val":2,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":2,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":63658,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":63658,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":63658,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":828196,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":828196,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":828196,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":2233623,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":2233623,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":2233623,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":1971734,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":1971734,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":2163914,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-01-01","end":"2021-12-31","val":4538322,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":3917532,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":5043983,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":5316440,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price","description":"Weighted average price of options that were either forfeited or expired.","units":{"EUR/shares":[{"start":"2016-01-01","end":"2016-12-31","val":1,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":1,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":8.15,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":8.15,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":8.15,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":6.23,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":6.23,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":6.23,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":3.98,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":6.93,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":6.93,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":4.28,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":4.28,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":5.57,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-01-01","end":"2021-12-31","val":6.16,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":1.13,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0.76,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":6.6,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross","description":"Gross number of share options (or share units) granted during the period.","units":{"shares":[{"start":"2016-01-01","end":"2016-12-31","val":221,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":221,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":10561001,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":10561001,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":10561001,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":4944430,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":4944430,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":4944430,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":3932498,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":3932498,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":3932498,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":8550753,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":8550753,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":5308986,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-01-01","end":"2021-12-31","val":5979438,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":9393407,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":20879816,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":9810235,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":2521075,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value","description":"The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.","units":{"EUR/shares":[{"start":"2014-01-01","end":"2014-12-31","val":22689000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":29496000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":29496000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":34425000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":34425000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":34425000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":4000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":4000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":4000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":3000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":3000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":3,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":4000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":4,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":4,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":1,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":1,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":1,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":4,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":4,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":4,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":1,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":1,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":1.33,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":1,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":0.67,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":0.67,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0.35,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":0.35,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0.48,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value","description":"Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.","units":{"EUR":[{"end":"2016-12-31","val":68235000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":32178000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2017-12-31","val":32178000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2017-12-31","val":32178000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2017Q4I"},{"end":"2018-12-31","val":32050000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":32050000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2018-12-31","val":32050000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2018-12-31","val":32050000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2018Q4I"},{"end":"2019-12-31","val":19556000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":19556000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2019-12-31","val":19556000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019Q4I"},{"end":"2020-12-31","val":28356000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":28356000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":28356000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":45917000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":30237000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":30237000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":23179000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":23179000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":3074000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":3074000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3661000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":5532000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number","description":"Number of options outstanding, including both vested and non-vested options.","units":{"shares":[{"end":"2015-12-31","val":722,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2015-12-31","val":722,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2015Q4I"},{"end":"2016-12-31","val":902,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2016-12-31","val":902,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2016-12-31","val":7704659,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":17108574,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":17108574,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2017-12-31","val":17108574,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2017-12-31","val":17108574,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2017Q4I"},{"end":"2018-12-31","val":20693398,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":20693398,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2018-12-31","val":20693398,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2018-12-31","val":20693398,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2018Q4I"},{"end":"2019-12-31","val":21173713,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":21173713,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2019-12-31","val":21173713,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019Q4I"},{"end":"2020-12-31","val":26347149,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":26347149,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":26347149,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":26174160,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":23827946,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":23827946,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":27357798,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":27357798,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":30917455,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":30917455,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":34454915,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":34454915,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":31111665,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price","description":"Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.","units":{"EUR/shares":[{"end":"2015-12-31","val":3239,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2015-12-31","val":3239,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2015Q4I"},{"end":"2016-12-31","val":21637,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2016-12-31","val":21637,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":5.66,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":5.66,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2017-12-31","val":5.66,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2017-12-31","val":5.66,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2017Q4I"},{"end":"2018-12-31","val":5.54,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":5.54,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2018-12-31","val":5.54,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2018-12-31","val":5.54,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2018Q4I"},{"end":"2019-12-31","val":3.66,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":4.79,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2019-12-31","val":4.79,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019Q4I"},{"end":"2020-12-31","val":3.29,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":3.29,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":3.29,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":2.9,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":2.64,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":2.64,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":2.3,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":2.3,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":2.25,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":2.25,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":0.99,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":0.99,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":0.94,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value","description":"Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.","units":{"EUR":[{"end":"2016-12-31","val":68235000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":32178000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":32050000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":19556000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":28356000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-06-30","val":45917000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":30237000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":21672000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":2294000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":2549000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":4052000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number","description":"Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.","units":{"shares":[{"end":"2017-12-31","val":17108574,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":20693398,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":21208693,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":26347149,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-06-30","val":26174160,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":23827946,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":26104057,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":22757455,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":23574915,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":22951665,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price","description":"Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.","units":{"EUR/shares":[{"end":"2017-12-31","val":5.66,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":5.54,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":3.64,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":3.29,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-06-30","val":2.9,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":2.64,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":2.41,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":2.83,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1.28,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1.16,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost":{"label":"Share-based Payment Arrangement, Plan Modification, Incremental Cost","description":"An excess of the fair value of the modified award over the fair value of the award immediately before the modification.","units":{"EUR":[{"end":"2020-10-22","val":1000000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-10-22","val":1000000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2020-10-22","val":1000000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020Q3I"},{"start":"2024-01-01","end":"2024-12-31","val":1700000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":1700000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationNumberOfEmployeesAffected":{"label":"Share-based Payment Arrangement, Plan Modification, Number of Grantees Affected","description":"Number of grantees affected by modification of award under share-based payment arrangement.","units":{"grantee":[{"end":"2020-10-22","val":3,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-10-22","val":3,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2020-10-22","val":3,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020Q3I"}]}},"ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price","description":"Weighted average price at which option holders acquired shares when converting their stock options into shares.","units":{"EUR/shares":[{"start":"2016-01-01","end":"2016-12-31","val":17953,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":17953,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0.13,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0.13,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0.13,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0.3,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0.3,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":0.3,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":5.45,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":0.17,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0.17,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0.06,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":0.06,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":0.37,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-01-01","end":"2021-12-31","val":0.32,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0.06,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0.06,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0.06,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0.07,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price","description":"Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.","units":{"EUR/shares":[{"start":"2016-01-01","end":"2016-12-31","val":80926,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":80926,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":7.16,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":7.16,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":7.16,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":3.99,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":3.99,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":3.99,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":4.38,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":0.06,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":0.06,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0.06,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":0.06,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":0.06,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-01-01","end":"2021-12-31","val":0.06,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0.2,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0.63,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0.33,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0.63,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value","description":"Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.","units":{"EUR":[{"end":"2016-12-31","val":89663000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":25891000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":21894000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":9774000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":10018000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-06-30","val":14844000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":10856000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":11200000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":377000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":821000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"}]}},"ShortTermBorrowings":{"label":"Short-term Debt","description":"Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.","units":{"EUR":[{"end":"2015-12-31","val":20000000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"}]}},"ShortTermInvestments":{"label":"Short-term Investments","description":"Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.","units":{"EUR":[{"end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":10000000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":10000000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":19448000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":19448000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":19448000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-06-30","val":9487000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":45000000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":45000000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":25225000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":25225000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":11876000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"StockholdersEquity":{"label":"Stockholders' Equity Attributable to Parent","description":"Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.","units":{"EUR":[{"end":"2015-12-31","val":622280000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015Q4I"},{"end":"2016-12-31","val":654258000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":654258000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":853975000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":853975000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":853583000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":894787000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2019Q4I"},{"end":"2020-12-31","val":664517000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2020-12-31","val":664517000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2020Q4I"},{"end":"2021-12-31","val":693784000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2021-12-31","val":693784000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2021-12-31","val":693784000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2021Q4I"},{"end":"2022-12-31","val":561736000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":561736000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2022-12-31","val":561736000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2022-12-31","val":561736000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2022Q4I"},{"end":"2023-12-31","val":215024000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":215024000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2023-12-31","val":215024000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023Q4I"},{"end":"2024-12-31","val":197605000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":197605000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":213299000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest":{"label":"Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest","description":"Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.","units":{"EUR":[{"end":"2013-12-31","val":684407000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2013Q4I"},{"end":"2014-12-31","val":664568000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2014-12-31","val":664568000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2014Q4I"},{"end":"2015-12-31","val":622280000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2015-12-31","val":622280000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2015-12-31","val":622280000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2015Q4I"},{"end":"2016-12-31","val":854071000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":854071000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2016-12-31","val":854071000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2016-12-31","val":854071000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":853975000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":853975000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2017-12-31","val":853975000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2017-12-31","val":853975000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2017Q4I"},{"end":"2018-12-31","val":853583000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":853583000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2018-12-31","val":853583000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2018-12-31","val":853583000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2018Q4I"},{"end":"2019-12-31","val":894787000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":894787000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2019-12-31","val":894787000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2019-12-31","val":894787000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019Q4I"},{"end":"2020-03-31","val":684082000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q1I"},{"end":"2020-06-30","val":668119000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2I"},{"end":"2020-12-31","val":664517000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":664517000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"end":"2020-12-31","val":664517000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-03-31","val":662053000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q1I"},{"end":"2021-06-30","val":663725000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":693784000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"}]}},"StockIssuedDuringPeriodSharesStockOptionsExercised":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period","description":"Number of share options (or share units) exercised during the current period.","units":{"shares":[{"start":"2016-01-01","end":"2016-12-31","val":39,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":39,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1093428,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":1093428,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":1093428,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":531410,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":531410,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":531410,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":1218560,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":1218560,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":1218560,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":1405583,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":1405583,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":3318061,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-01-01","end":"2021-12-31","val":3960319,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":1946023,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":12276176,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":956335,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":39175,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"StockIssuedDuringPeriodValueAcquisitions":{"label":"Stock Issued During Period, Value, Acquisitions","description":"Value of stock issued pursuant to acquisitions during the period.","units":{"EUR":[{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"}]}},"StockIssuedDuringPeriodValueNewIssues":{"label":"Stock Issued During Period, Value, New Issues","description":"Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":202921000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":202921000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":202921000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"}]}},"StockIssuedDuringPeriodValueStockOptionsExercised":{"label":"Stock Issued During Period, Value, Stock Options Exercised","description":"Value of stock issued as a result of the exercise of stock options.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":4930000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":4930000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":4930000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-2984000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-2984000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":-149000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":161000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":161000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":161000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":202000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":202000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":202000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":40000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":14000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":87000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":87000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":87000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":1230000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":58000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":1270000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":1270000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":1270000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":69000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":69000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":69000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":365000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":365000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":365000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"SubleaseIncome":{"label":"Sublease Income","description":"Amount of sublease income excluding finance and operating lease expense.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":128000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":1000000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":1000000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":900000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":900000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":900000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":100000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":100000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":100000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":100000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":100000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":100000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":100000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":100000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":100000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":100000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":100000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":100000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"TechnologyServicesCosts":{"label":"Technology Services Costs (Deprecated 2018-01-31)","description":"Costs incurred in providing technology services. The services may include training, installation, engineering or consulting. Consulting services often include implementation support, software design or development, or the customization or modification of the licensed software.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":15388000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":28693000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":28693000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":51658000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":51658000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":52232000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"}]}},"UndistributedEarningsOfDomesticSubsidiaries":{"label":"Undistributed Earnings of Domestic Subsidiaries","description":"Amount of undistributed earnings of domestic subsidiaries or domestic joint ventures intended to be permanent.","units":{"EUR":[{"end":"2019-12-31","val":20000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2019Q4I"},{"end":"2020-12-31","val":10000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020Q4I"},{"end":"2021-12-31","val":10000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021Q4I"},{"end":"2022-12-31","val":18000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":18000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"}]}},"UndistributedEarningsOfForeignSubsidiaries":{"label":"Undistributed Earnings of Foreign Subsidiaries","description":"Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.","units":{"EUR":[{"end":"2016-12-31","val":100000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"},{"end":"2017-12-31","val":100000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2000000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018Q4I"},{"end":"2019-12-31","val":100000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":100000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019Q4I"},{"end":"2020-12-31","val":10000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":100000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020Q4I"},{"end":"2021-12-31","val":1700000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":1700000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1700000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":1700000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1800000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"}]}},"UnrecognizedTaxBenefits":{"label":"Unrecognized Tax Benefits","description":"Amount of unrecognized tax benefits.","units":{"EUR":[{"end":"2013-12-31","val":1545000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1666000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2014-12-31","val":1666000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2015-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2016-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"end":"2017-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2017-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2018-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2857000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":2857000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2019-12-31","val":2857000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019Q4I"},{"end":"2020-12-31","val":2871000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":2871000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2020-12-31","val":2871000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020Q4I"},{"end":"2021-06-30","val":2900000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2I"},{"end":"2021-12-31","val":2927000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":2927000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2021-12-31","val":2927000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021Q4I"},{"end":"2022-12-31","val":9238000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":9238000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2022-12-31","val":9238000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022Q4I"},{"end":"2023-12-31","val":8552000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":8552000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2023-12-31","val":8552000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023Q4I"},{"end":"2024-12-31","val":8684000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":8684000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense":{"label":"Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense","description":"Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.","units":{"EUR":[{"start":"2014-01-01","end":"2014-12-31","val":121000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":4000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":4000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":14000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":14000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":56000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":56000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":22000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":22000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":34000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":34000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":132000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":132000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":120000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions":{"label":"Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions","description":"Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.","units":{"EUR":[{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":2133000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":2133000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":6289000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":6289000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"}]}},"UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions":{"label":"Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions","description":"Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.","units":{"EUR":[{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":720000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":720000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"}]}},"UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations":{"label":"Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations","description":"Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.","units":{"EUR":[{"start":"2015-01-01","end":"2015-12-31","val":1666000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2015-01-01","end":"2015-12-31","val":1666000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"}]}},"UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate":{"label":"Unrecognized Tax Benefits that Would Impact Effective Tax Rate","description":"The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.","units":{"EUR":[{"end":"2016-12-31","val":3600000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016Q4I"}]}},"ValuationAllowanceDeferredTaxAssetChangeInAmount":{"label":"Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount","description":"Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":3500000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-3500000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-300000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018"},{"start":"2020-01-01","end":"2020-12-31","val":500000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":900000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-100000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022"}]}},"ValuationAllowancesAndReservesBalance":{"label":"SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount","description":"Amount of valuation and qualifying accounts and reserves.","units":{"EUR":[{"end":"2015-12-31","val":251000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2015Q4I"},{"end":"2016-12-31","val":152000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2016-12-31","val":152000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2016Q4I"},{"end":"2017-12-31","val":231000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2017-12-31","val":231000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2017-12-31","val":231000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2017Q4I"},{"end":"2018-12-31","val":250000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"end":"2018-12-31","val":250000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2018-12-31","val":250000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2018-12-31","val":250000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2018Q4I"},{"end":"2019-12-31","val":74000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"end":"2019-12-31","val":74000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2019-12-31","val":74000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2019-12-31","val":74000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2019Q4I"},{"end":"2020-12-31","val":348000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"end":"2020-12-31","val":348000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2020-12-31","val":348000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2020-12-31","val":348000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2020Q4I"},{"end":"2021-12-31","val":658000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-12-31","val":658000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2021-12-31","val":658000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2021-12-31","val":658000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2021Q4I"},{"end":"2022-12-31","val":418000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":418000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2022-12-31","val":418000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2022-12-31","val":418000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2022Q4I"},{"end":"2023-12-31","val":936000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":936000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2023-12-31","val":936000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023Q4I"},{"end":"2024-12-31","val":958000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":958000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":838000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"ValuationAllowancesAndReservesChargedToCostAndExpense":{"label":"SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense","description":"Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":1749000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":2275000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":2275000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":580000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":580000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":580000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":754000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":754000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":754000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":656000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":656000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":656000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":330000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":330000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":330000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":227000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":227000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":227000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":640000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":640000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":640000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":89000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":89000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-43000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ValuationAllowancesAndReservesDeductions":{"label":"SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction","description":"Amount of decrease in valuation and qualifying accounts and reserves.","units":{"EUR":[{"start":"2016-01-01","end":"2016-12-31","val":1848000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":2196000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":2196000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":561000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":561000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":561000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":930000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":930000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":930000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":382000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":382000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":382000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":20000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":20000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":20000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":467000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":467000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":467000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":122000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":122000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":122000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":67000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":67000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":77000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"WeightedAverageNumberOfDilutedSharesOutstanding":{"label":"Weighted Average Number of Shares Outstanding, Diluted","description":"The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.","units":{"shares":[{"start":"2017-01-01","end":"2017-12-31","val":274666000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":350852000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":350852000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":356738000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":356738000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":356738000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":352953000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":353133000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":353338000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":353338000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":353338000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":356726000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":357582000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":367240000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":367240000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":367240000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":357551000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":357551000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":357551000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":344937000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":344937000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":344937000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":349622000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":349622000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":357589000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"WeightedAverageNumberOfShareOutstandingBasicAndDiluted":{"label":"Weighted Average Number of Shares Outstanding, Basic and Diluted","description":"Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).","units":{"shares":[{"start":"2016-01-01","end":"2016-12-31","val":237811000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-01-01","end":"2016-12-31","val":237811000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-01-01","end":"2016-12-31","val":237811000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016"},{"start":"2016-12-16","end":"2016-12-31","val":237811000,"accn":"0001683825-17-000012","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-07"},{"start":"2016-12-16","end":"2016-12-31","val":237811000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2016-12-16","end":"2016-12-31","val":237811000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2016Q4I"},{"start":"2017-01-01","end":"2017-12-31","val":274666000,"accn":"0001683825-18-000014","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-06"},{"start":"2017-01-01","end":"2017-12-31","val":274666000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":350852000,"accn":"0001683825-19-000008","fy":2018,"fp":"FY","form":"20-F","filed":"2019-03-06","frame":"CY2018"}]}},"WeightedAverageNumberOfSharesOutstandingBasic":{"label":"Weighted Average Number of Shares Outstanding, Basic","description":"Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.","units":{"shares":[{"start":"2017-01-01","end":"2017-12-31","val":274666000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":350852000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2018-01-01","end":"2018-12-31","val":350852000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":351991000,"accn":"0001683825-20-000008","fy":2019,"fp":"FY","form":"20-F","filed":"2020-03-06"},{"start":"2019-01-01","end":"2019-12-31","val":351991000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2019-01-01","end":"2019-12-31","val":351991000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":352953000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2020-04-01","end":"2020-06-30","val":353133000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-12-31","val":353338000,"accn":"0001683825-21-000008","fy":2020,"fp":"FY","form":"20-F","filed":"2021-03-05"},{"start":"2020-01-01","end":"2020-12-31","val":353338000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2020-01-01","end":"2020-12-31","val":353338000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":356726000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29"},{"start":"2021-04-01","end":"2021-06-30","val":357582000,"accn":"0001683825-21-000039","fy":2021,"fp":"Q2","form":"6-K","filed":"2021-07-29","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-12-31","val":357525000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":357525000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":357525000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":357551000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":357551000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":357551000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":344937000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":344937000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":344937000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":349622000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":349622000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":352297000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"GainLossOnSaleOfPropertyPlantEquipment":{"label":"Gain (Loss) on Disposition of Property Plant Equipment","description":"Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.","units":{"EUR":[{"end":"2021-01-29","val":200000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-01-29","val":200000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020Q4I"}]}},"PropertyPlantAndEquipmentDisposals":{"label":"Property, Plant and Equipment, Disposals","description":"Amount of divestiture of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.","units":{"EUR":[{"end":"2021-01-29","val":7500000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"end":"2021-01-29","val":7500000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020Q4I"},{"start":"2023-04-01","end":"2023-06-30","val":2100000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q2"}]}},"VariableLeaseCost":{"label":"Variable Lease, Cost","description":"Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.","units":{"EUR":[{"start":"2021-01-01","end":"2021-12-31","val":400000,"accn":"0001683825-22-000007","fy":2021,"fp":"FY","form":"20-F","filed":"2022-03-04"},{"start":"2021-01-01","end":"2021-12-31","val":400000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":400000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":200000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":200000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":200000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":400000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":400000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":400000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":400000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":400000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":500000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"CommonStockSharesIssued":{"label":"Common Stock, Shares, Issued","description":"Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.","units":{"shares":[{"end":"2022-12-31","val":124305225,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":124305225,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":110919270,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"}]}},"DeferredTaxLiabilitiesPrepaidExpenses":{"label":"Deferred Tax Liabilities, Prepaid Expenses","description":"Amount of deferred tax consequences attributable to taxable temporary differences derived from prepaid expenses.","units":{"EUR":[{"end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":163000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":163000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":437000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-12-31","val":437000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":328000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":328000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":142000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"GoodwillAndIntangibleAssetImpairment":{"label":"Goodwill and Intangible Asset Impairment","description":"Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.","units":{"EUR":[{"start":"2020-01-01","end":"2020-12-31","val":207618000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-04-01","end":"2022-06-30","val":84200000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q2"},{"start":"2022-07-01","end":"2022-09-30","val":100400000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":184642000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":184642000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":184642000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":196127000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":196127000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":196127000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":30148000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":30148000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"LossOnContractTermination":{"label":"Loss on Contract Termination","description":"The loss recognized on termination of a contract.","units":{"EUR":[{"start":"2022-01-01","end":"2022-12-31","val":500000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":500000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"}]}},"OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent":{"label":"Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent","description":"Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity.","units":{"EUR":[{"start":"2020-01-01","end":"2020-12-31","val":-58000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":32000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":32000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":18000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":18000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":18000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":21000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":21000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":21000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":273000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":273000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-1413000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"PaymentsForRepurchaseOfCommonStock":{"label":"Payments for Repurchase of Common Stock","description":"The cash outflow to reacquire common stock during the period.","units":{"EUR":[{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":19627000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":19627000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":19627000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"}]}},"PaymentsToAcquireEquityMethodInvestments":{"label":"Payments to Acquire Equity Method Investments","description":"The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.","units":{"EUR":[{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":5951000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":5951000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":5951000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":10211000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":10211000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ProceedsFromInterestReceived":{"label":"Proceeds from Interest Received","description":"Interest received on loans and other debt instruments during the current period.","units":{"EUR":[{"start":"2020-01-01","end":"2020-12-31","val":248000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":174000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2021-01-01","end":"2021-12-31","val":174000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":397000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":397000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":397000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":5271000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":5271000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":5271000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":3571000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":3571000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":2488000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"RestrictedCashNoncurrent":{"label":"Restricted Cash, Noncurrent","description":"Amount of cash restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.","units":{"EUR":[{"end":"2021-12-31","val":300000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period","description":"The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.","units":{"shares":[{"start":"2020-01-01","end":"2020-12-31","val":2032743,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2020"},{"end":"2022-07-11","val":2032743,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q2I"},{"start":"2025-01-01","end":"2025-12-31","val":5215130,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value","description":"Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.","units":{"EUR":[{"end":"2022-12-31","val":10710000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":377000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":821000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":2599000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number","description":"Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.","units":{"shares":[{"end":"2022-12-31","val":15208472,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":7978490,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":8017525,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":14602335,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price","description":"Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.","units":{"EUR/shares":[{"end":"2022-12-31","val":3.66,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2022Q4I"},{"end":"2023-12-31","val":7,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3.11,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1.6,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"StockIssuedDuringPeriodValueTreasuryStockReissued":{"label":"Stock Issued During Period, Value, Treasury Stock Reissued","description":"Value of treasury shares or units reissued. Excludes reissuance of shares or units in treasury for award under share-based payment arrangement.","units":{"EUR":[{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"}]}},"StockRepurchasedDuringPeriodValue":{"label":"Stock Repurchased During Period, Value","description":"Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.","units":{"EUR":[{"start":"2022-01-01","end":"2022-12-31","val":20259000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-01-01","end":"2022-12-31","val":20259000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":20259000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"}]}},"TreasuryStockCommonShares":{"label":"Treasury Stock, Common, Shares","description":"Number of previously issued common shares repurchased by the issuing entity and held in treasury.","units":{"shares":[{"end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":20000000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":20000000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"}]}},"TreasuryStockCommonValue":{"label":"Treasury Stock, Common, Value","description":"Amount allocated to previously issued common shares repurchased by the issuing entity and held in treasury.","units":{"EUR":[{"end":"2021-12-31","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03","frame":"CY2021Q4I"},{"end":"2022-12-31","val":19960000,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"end":"2022-12-31","val":19960000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q4I"},{"end":"2023-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q4I"}]}},"TreasuryStockSharesAcquired":{"label":"Treasury Stock, Shares, Acquired","description":"Number of shares that have been repurchased during the period and are being held in treasury.","units":{"shares":[{"start":"2022-03-07","end":"2022-05-30","val":0,"accn":"0001683825-23-000012","fy":2022,"fp":"FY","form":"20-F","filed":"2023-03-03"},{"start":"2022-03-07","end":"2022-05-30","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022Q2"}]}},"AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation":{"label":"Share-based Payment Arrangement, Decrease for Tax Withholding Obligation","description":"Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement.","units":{"EUR":[{"start":"2023-01-01","end":"2023-12-31","val":6456000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":6456000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":6456000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":997000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":997000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":1173000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"DividendsCommonStockCash":{"label":"Dividends, Common Stock, Cash","description":"Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.","units":{"EUR":[{"end":"2023-11-03","val":184400000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"end":"2023-11-03","val":184400000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q3I"},{"start":"2023-01-01","end":"2023-12-31","val":184381000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":184400000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"}]}},"DividendsPayableAmountPerShare":{"label":"Dividends Payable, Amount Per Share","description":"The per share amount of a dividend declared, but not paid, as of the financial reporting date.","units":{"EUR/shares":[{"end":"2023-11-02","val":0.53,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023Q3I"}]}},"EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount":{"label":"Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount","description":"Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.","units":{"EUR":[{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-401000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-401000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-428000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"}]}},"EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent":{"label":"Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Percent","description":"Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.","units":{"pure":[{"start":"2023-01-01","end":"2023-12-31","val":0.003,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"}]}},"ForeignCurrencyTransactionGainLossRealized":{"label":"Foreign Currency Transaction Gain (Loss), Realized","description":"Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement.","units":{"EUR":[{"start":"2021-01-01","end":"2021-12-31","val":1554000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-228000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":-228000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-632000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":-632000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":-632000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":280000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":280000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":604000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"InvestmentIncomeInterest":{"label":"Investment Income, Interest","description":"Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.","units":{"EUR":[{"start":"2021-01-01","end":"2021-12-31","val":174000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":622000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":622000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":5213000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":5213000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":5213000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":3559000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":3559000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":2462000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"PaymentsOfOrdinaryDividends":{"label":"Payments of Ordinary Dividends","description":"Cash outflow in the form of ordinary dividends to common shareholders, preferred shareholders and noncontrolling interests, generally out of earnings.","units":{"EUR":[{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":184381000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":184381000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":184381000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"SharesPaidForTaxWithholdingForShareBasedCompensation":{"label":"Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation","description":"Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.","units":{"shares":[{"start":"2023-01-01","end":"2023-12-31","val":6407312,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":756200,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":17930,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions":{"label":"Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions","description":"Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.","units":{"EUR":[{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":720000,"accn":"0001683825-24-000009","fy":2023,"fp":"FY","form":"20-F","filed":"2024-03-01"},{"start":"2023-01-01","end":"2023-12-31","val":720000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":8804000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"AdjustmentsToAdditionalPaidInCapitalDividendsInExcessOfRetainedEarnings":{"label":"Adjustments to Additional Paid in Capital, Dividends in Excess of Retained Earnings","description":"Amount of decrease in additional paid in capital (APIC) resulting from dividends legally declared (or paid) in excess of retained earnings balance.","units":{"EUR":[{"start":"2023-01-01","end":"2023-12-31","val":184381000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":184381000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"}]}},"AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount":{"label":"Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount","description":"Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.","units":{"shares":[{"start":"2022-01-01","end":"2022-12-31","val":30000000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":27000000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":27000000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":32000000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":32000000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":12000000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"AssetsHeldForSaleNotPartOfDisposalGroupCurrent":{"label":"Assets Held-for-sale, Not Part of Disposal Group, Current","description":"Amount of assets held-for-sale that are not part of a disposal group, expected to be sold within a year or the normal operating cycle, if longer.","units":{"EUR":[{"end":"2023-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":100000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":100000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"EquityMethodInvestments":{"label":"Equity Method Investments","description":"This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.","units":{"EUR":[{"end":"2023-12-31","val":5329000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-12-31","val":13170000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-12-31","val":13170000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":4877000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"GovernmentAssistanceAssetIncrease":{"label":null,"description":null,"units":{"EUR":[{"start":"2024-01-01","end":"2024-12-31","val":400000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":400000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"}]}},"GovernmentAssistanceAwardAmount":{"label":null,"description":null,"units":{"EUR":[{"end":"2024-11-30","val":1400000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"end":"2024-11-30","val":1400000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"}]}},"GovernmentAssistanceExpense":{"label":null,"description":null,"units":{"EUR":[{"start":"2024-01-01","end":"2024-12-31","val":1000000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":1000000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"}]}},"ImpairmentOfIntangibleAssetsExcludingGoodwill":{"label":"Impairment of Intangible Assets (Excluding Goodwill)","description":"The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.","units":{"EUR":[{"start":"2024-01-01","end":"2024-12-31","val":30000000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":30000000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"}]}},"IncomeTaxReconciliationTaxCredits":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.","units":{"EUR":[{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":438000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2024"}]}},"InterestExpenseNonoperating":{"label":null,"description":null,"units":{"EUR":[{"start":"2022-01-01","end":"2022-12-31","val":51000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":12000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":12000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":17000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":17000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":41000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax":{"label":"Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax","description":"Amount after tax of reclassification adjustment from accumulated other comprehensive income for translation gain (loss) realized upon the sale or liquidation of an investment in a foreign entity and foreign currency hedges that are designated and qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation.","units":{"EUR":[{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":81000,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27"},{"start":"2024-01-01","end":"2024-12-31","val":81000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-180000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"TreasuryStockRetiredParValueMethodAmount":{"label":"Treasury Stock, Retired, Par Value Method, Amount","description":"Amount of decrease of par value, additional paid in capital (APIC) and retained earnings of common and preferred stock retired from treasury when treasury stock is accounted for under the par value method.","units":{"EUR":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-25-000013","fy":2024,"fp":"FY","form":"20-F","filed":"2025-02-27","frame":"CY2023"}]}},"BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain":{"label":"Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain","description":"In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.","units":{"EUR":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":3246000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"DeferredTaxAssetsTaxCreditCarryforwardsResearch":{"label":"Deferred Tax Assets, Tax Credit Carryforwards, Research","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards.","units":{"EUR":[{"end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1080000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025Q4I"}]}},"EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate":{"label":"Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates.","units":{"pure":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-0.304,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpense":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.","units":{"pure":[{"start":"2023-01-01","end":"2023-12-31","val":-0.001,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-0.012,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0.027,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses.","units":{"pure":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0.001,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationTaxContingencies":{"label":"Effective Income Tax Rate Reconciliation, Tax Contingency, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.","units":{"pure":[{"start":"2023-01-01","end":"2023-12-31","val":0.005,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-0.005,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-1.081,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationTaxCreditsResearch":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit.","units":{"pure":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-0.015,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss":{"label":"Finite Lived Intangible Assets, Foreign Currency Translation Gain (Loss)","description":"Amount of foreign currency translation gain (loss) which increases (decreases) assets, excluding financial assets and goodwill, lacking physical substance with a finite life.","units":{"EUR":[{"start":"2025-01-01","end":"2025-12-31","val":-921000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"FiniteLivedIntangibleAssetsPeriodIncreaseDecrease":{"label":"Finite-Lived Intangible Assets, Period Increase (Decrease)","description":"Amount of increase (decrease) in carrying value of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.","units":{"EUR":[{"start":"2025-01-01","end":"2025-12-31","val":32120000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"GainLossOnDispositionOfIntangibleAssets":{"label":"Gain (Loss) on Disposition of Intangible Assets","description":"Amount of gain (loss) on sale or disposal of intangible assets.","units":{"EUR":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":194000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeTaxPaidFederalAfterRefundReceived":{"label":null,"description":null,"units":{"EUR":[{"start":"2023-01-01","end":"2023-12-31","val":32946000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-1530000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":234000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeTaxPaidForeignAfterRefundReceived":{"label":null,"description":null,"units":{"EUR":[{"start":"2023-01-01","end":"2023-12-31","val":39000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":12000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":34000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeTaxReconciliationChangeInEnactedTaxRate":{"label":"Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.","units":{"EUR":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-2443000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeTaxReconciliationNondeductibleExpense":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.","units":{"EUR":[{"start":"2023-01-01","end":"2023-12-31","val":165000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":335000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":219000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeTaxReconciliationNondeductibleExpenseOther":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses.","units":{"EUR":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":6000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"IncomeTaxReconciliationTaxCreditsResearch":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit.","units":{"EUR":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":438000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ProceedsFromSaleOfIntangibleAssets":{"label":"Proceeds from Sale of Intangible Assets","description":"The cash inflow from disposal of asset without physical form usually arising from contractual or other legal rights, excluding goodwill.","units":{"EUR":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":239000,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period","description":"Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.","units":{"shares":[{"start":"2025-01-01","end":"2025-12-31","val":610020,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price","description":"Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.","units":{"EUR/shares":[{"start":"2025-01-01","end":"2025-12-31","val":5.6,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price","description":"Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.","units":{"EUR/shares":[{"start":"2025-01-01","end":"2025-12-31","val":0.34,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2025"}]}},"StockRepurchasedAndRetiredDuringPeriodValue":{"label":"Stock Repurchased and Retired During Period, Value","description":"Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).","units":{"EUR":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001683825-26-000006","fy":2025,"fp":"FY","form":"20-F","filed":"2026-02-26","frame":"CY2023"}]}}}}}