{"cik":1515156,"taxonomy":"us-gaap","tag":"LongTermDebtNoncurrent","label":"Long-term Debt, Excluding Current Maturities","description":"Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","entityName":"ARQ, INC.","units":{"USD":[{"end":"2018-12-31","val":50058000,"accn":"0001515156-19-000024","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-18"},{"end":"2018-12-31","val":50058000,"accn":"0001515156-19-000050","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-06"},{"end":"2018-12-31","val":50058000,"accn":"0001515156-19-000077","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-05"},{"end":"2018-12-31","val":50058000,"accn":"0001515156-19-000103","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"end":"2018-12-31","val":50058000,"accn":"0001515156-20-000018","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16","frame":"CY2018Q4I"},{"end":"2019-03-31","val":43999000,"accn":"0001515156-19-000050","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-06","frame":"CY2019Q1I"},{"end":"2019-06-30","val":34204000,"accn":"0001515156-19-000077","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-05","frame":"CY2019Q2I"},{"end":"2019-09-30","val":26276000,"accn":"0001515156-19-000103","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12","frame":"CY2019Q3I"},{"end":"2019-12-31","val":20434000,"accn":"0001515156-20-000018","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16"},{"end":"2019-12-31","val":20434000,"accn":"0001515156-20-000049","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-11"},{"end":"2019-12-31","val":20434000,"accn":"0001515156-20-000078","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-10"},{"end":"2019-12-31","val":20434000,"accn":"0001515156-20-000090","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-09"},{"end":"2019-12-31","val":20434000,"accn":"0001515156-21-000010","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-10","frame":"CY2019Q4I"},{"end":"2020-03-31","val":14189000,"accn":"0001515156-20-000049","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-11","frame":"CY2020Q1I"},{"end":"2020-06-30","val":10120000,"accn":"0001515156-20-000078","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-10","frame":"CY2020Q2I"},{"end":"2020-09-30","val":5486000,"accn":"0001515156-20-000090","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-09","frame":"CY2020Q3I"},{"end":"2020-12-31","val":5445000,"accn":"0001515156-21-000010","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-10"},{"end":"2020-12-31","val":5445000,"accn":"0001515156-21-000042","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-10"},{"end":"2020-12-31","val":5445000,"accn":"0001515156-21-000071","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-09"},{"end":"2020-12-31","val":5445000,"accn":"0001515156-21-000081","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-09"},{"end":"2020-12-31","val":5445000,"accn":"0001515156-22-000005","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-08","frame":"CY2020Q4I"},{"end":"2021-03-31","val":4287000,"accn":"0001515156-21-000042","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-10","frame":"CY2021Q1I"},{"end":"2021-06-30","val":3670000,"accn":"0001515156-21-000071","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-09","frame":"CY2021Q2I"},{"end":"2021-09-30","val":3408000,"accn":"0001515156-21-000081","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-09","frame":"CY2021Q3I"},{"end":"2021-12-31","val":3152000,"accn":"0001515156-22-000005","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-08","frame":"CY2021Q4I"},{"end":"2022-12-31","val":3450000,"accn":"0001515156-23-000063","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-09"},{"end":"2022-12-31","val":3450000,"accn":"0001515156-23-000116","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-09"},{"end":"2022-12-31","val":3450000,"accn":"0001515156-23-000133","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-08"},{"end":"2022-12-31","val":3450000,"accn":"0001515156-24-000036","fy":2023,"fp":"FY","form":"10-K","filed":"2024-03-12","frame":"CY2022Q4I"},{"end":"2023-03-31","val":20119000,"accn":"0001515156-23-000063","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-09","frame":"CY2023Q1I"},{"end":"2023-06-30","val":19830000,"accn":"0001515156-23-000116","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-09","frame":"CY2023Q2I"},{"end":"2023-09-30","val":19179000,"accn":"0001515156-23-000133","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-08","frame":"CY2023Q3I"},{"end":"2023-12-31","val":18274000,"accn":"0001515156-24-000036","fy":2023,"fp":"FY","form":"10-K","filed":"2024-03-12"},{"end":"2023-12-31","val":18274000,"accn":"0001515156-24-000095","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":18274000,"accn":"0001515156-24-000144","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-12"},{"end":"2023-12-31","val":18274000,"accn":"0001515156-24-000174","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-07"},{"end":"2023-12-31","val":18274000,"accn":"0001515156-25-000014","fy":2024,"fp":"FY","form":"10-K","filed":"2025-03-05","frame":"CY2023Q4I"},{"end":"2024-03-31","val":18127000,"accn":"0001515156-24-000095","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":17978000,"accn":"0001515156-24-000144","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-12","frame":"CY2024Q2I"},{"end":"2024-09-30","val":17634000,"accn":"0001515156-24-000174","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-07","frame":"CY2024Q3I"},{"end":"2024-12-31","val":9370000,"accn":"0001515156-25-000014","fy":2024,"fp":"FY","form":"10-K","filed":"2025-03-05"},{"end":"2024-12-31","val":9370000,"accn":"0001515156-25-000058","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-07"},{"end":"2024-12-31","val":9370000,"accn":"0001515156-25-000114","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-11"},{"end":"2024-12-31","val":9370000,"accn":"0001515156-25-000138","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-05"},{"end":"2024-12-31","val":9370000,"accn":"0001515156-26-000021","fy":2025,"fp":"FY","form":"10-K","filed":"2026-03-10","frame":"CY2024Q4I"},{"end":"2025-03-31","val":9086000,"accn":"0001515156-25-000058","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-07","frame":"CY2025Q1I"},{"end":"2025-06-30","val":8741000,"accn":"0001515156-25-000114","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-11","frame":"CY2025Q2I"},{"end":"2025-09-30","val":8801000,"accn":"0001515156-25-000138","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-05","frame":"CY2025Q3I"},{"end":"2025-12-31","val":8452000,"accn":"0001515156-26-000021","fy":2025,"fp":"FY","form":"10-K","filed":"2026-03-10"},{"end":"2025-12-31","val":8452000,"accn":"0001515156-26-000062","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-06"},{"end":"2025-12-31","val":8452000,"accn":"0001515156-26-000114","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-10","frame":"CY2025Q4I"},{"end":"2026-03-31","val":8194000,"accn":"0001515156-26-000062","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-06","frame":"CY2026Q1I"},{"end":"2026-06-30","val":8195000,"accn":"0001515156-26-000114","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-10","frame":"CY2026Q2I"}]}}