{"cik":874238,"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":"STERLING INFRASTRUCTURE, INC.","units":{"USD":[{"end":"2010-12-31","val":336000,"accn":"0000874238-11-000020","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-08"},{"end":"2010-12-31","val":336000,"accn":"0000874238-11-000027","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-08"},{"end":"2010-12-31","val":336000,"accn":"0001140361-12-016008","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15","frame":"CY2010Q4I"},{"end":"2011-06-30","val":299000,"accn":"0000874238-11-000020","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-08","frame":"CY2011Q2I"},{"end":"2011-09-30","val":8281000,"accn":"0000874238-11-000027","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-08","frame":"CY2011Q3I"},{"end":"2011-12-31","val":263000,"accn":"0001140361-12-016008","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-15"},{"end":"2011-12-31","val":263000,"accn":"0001140361-12-024059","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":263000,"accn":"0001171843-12-003010","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-08"},{"end":"2011-12-31","val":263000,"accn":"0001171843-12-004042","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-08"},{"end":"2011-12-31","val":263000,"accn":"0001171843-13-001025","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-18","frame":"CY2011Q4I"},{"end":"2012-03-31","val":245000,"accn":"0001140361-12-024059","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":268000,"accn":"0001171843-12-003010","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-08","frame":"CY2012Q2I"},{"end":"2012-09-30","val":10208000,"accn":"0001171843-12-004042","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-08","frame":"CY2012Q3I"},{"end":"2012-12-31","val":24201000,"accn":"0001171843-13-001025","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-18"},{"end":"2012-12-31","val":24201000,"accn":"0001171843-13-001961","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10"},{"end":"2012-12-31","val":24201000,"accn":"0001171843-13-003304","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":24201000,"accn":"0001171843-13-004537","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":24201000,"accn":"0001171843-14-001265","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-17","frame":"CY2012Q4I"},{"end":"2013-03-31","val":11892000,"accn":"0001171843-13-001961","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-10","frame":"CY2013Q1I"},{"end":"2013-06-30","val":29469000,"accn":"0001171843-13-003304","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":20568000,"accn":"0001171843-13-004537","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":8331000,"accn":"0001171843-14-001265","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-17"},{"end":"2013-12-31","val":8331000,"accn":"0001171843-14-002287","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-12"},{"end":"2013-12-31","val":8331000,"accn":"0001171843-14-003853","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":8331000,"accn":"0001171843-14-005379","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-10"},{"end":"2013-12-31","val":8331000,"accn":"0001171843-15-001420","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16","frame":"CY2013Q4I"},{"end":"2014-03-31","val":21084000,"accn":"0001171843-14-002287","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-12","frame":"CY2014Q1I"},{"end":"2014-06-30","val":19622000,"accn":"0001171843-14-003853","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":36810000,"accn":"0001171843-14-005379","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":37021000,"accn":"0001171843-15-001420","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-16"},{"end":"2014-12-31","val":37021000,"accn":"0001171843-15-002705","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-11"},{"end":"2014-12-31","val":37021000,"accn":"0001171843-15-004528","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":37021000,"accn":"0001171843-15-006116","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":37021000,"accn":"0001171843-15-006375","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-16"},{"end":"2014-12-31","val":37021000,"accn":"0001171843-16-008548","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-14","frame":"CY2014Q4I"},{"end":"2015-03-31","val":33477000,"accn":"0001171843-15-002705","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-11","frame":"CY2015Q1I"},{"end":"2015-06-30","val":33260000,"accn":"0001171843-15-004528","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":30509000,"accn":"0001171843-15-006116","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-09-30","val":30509000,"accn":"0001171843-15-006375","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-16","frame":"CY2015Q3I"},{"end":"2015-12-31","val":16107000,"accn":"0001171843-16-008548","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-14"},{"end":"2015-12-31","val":15324000,"accn":"0001171843-16-009576","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-02"},{"end":"2015-12-31","val":15324000,"accn":"0001171843-16-011379","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-01"},{"end":"2015-12-31","val":15324000,"accn":"0001171843-16-012746","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-10-31"},{"end":"2015-12-31","val":15324000,"accn":"0001171843-17-001381","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":27273000,"accn":"0001171843-16-009576","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-02","frame":"CY2016Q1I"},{"end":"2016-06-30","val":13044000,"accn":"0001171843-16-011379","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-01","frame":"CY2016Q2I"},{"end":"2016-09-30","val":6952000,"accn":"0001171843-16-012746","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-10-31","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1549000,"accn":"0001171843-17-001381","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-09"},{"end":"2016-12-31","val":1549000,"accn":"0001171843-17-002553","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-03"},{"end":"2016-12-31","val":1549000,"accn":"0001171843-17-004586","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-02"},{"end":"2016-12-31","val":1549000,"accn":"0000874238-17-000011","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-10-31"},{"end":"2016-12-31","val":1549000,"accn":"0000874238-18-000022","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-06","frame":"CY2016Q4I"},{"end":"2017-03-31","val":1358000,"accn":"0001171843-17-002553","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":88125000,"accn":"0001171843-17-004586","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-02","frame":"CY2017Q2I"},{"end":"2017-09-30","val":88619000,"accn":"0000874238-17-000011","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-10-31","frame":"CY2017Q3I"},{"end":"2017-12-31","val":86160000,"accn":"0000874238-18-000022","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-06"},{"end":"2017-12-31","val":86160000,"accn":"0000874238-18-000046","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-08"},{"end":"2017-12-31","val":86160000,"accn":"0000874238-18-000075","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-02"},{"end":"2017-12-31","val":86160000,"accn":"0000874238-18-000085","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-06"},{"end":"2017-12-31","val":86160000,"accn":"0000874238-19-000044","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-05","frame":"CY2017Q4I"},{"end":"2018-03-31","val":85106000,"accn":"0000874238-18-000046","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-08","frame":"CY2018Q1I"},{"end":"2018-06-30","val":85749000,"accn":"0000874238-18-000075","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-02","frame":"CY2018Q2I"},{"end":"2018-09-30","val":78424000,"accn":"0000874238-18-000085","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-06","frame":"CY2018Q3I"},{"end":"2018-12-31","val":79117000,"accn":"0000874238-19-000044","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-05"},{"end":"2018-12-31","val":79117000,"accn":"0000874238-19-000068","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":79117000,"accn":"0000874238-19-000104","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":79117000,"accn":"0000874238-19-000132","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-05"},{"end":"2018-12-31","val":79117000,"accn":"0000874238-20-000033","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-03","frame":"CY2018Q4I"},{"end":"2019-03-31","val":76923000,"accn":"0000874238-19-000068","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":66497000,"accn":"0000874238-19-000104","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":62489000,"accn":"0000874238-19-000132","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-05","frame":"CY2019Q3I"},{"end":"2019-12-31","val":390627000,"accn":"0000874238-20-000033","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-03"},{"end":"2019-12-31","val":390627000,"accn":"0000874238-20-000056","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-05"},{"end":"2019-12-31","val":390627000,"accn":"0000874238-20-000089","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-04"},{"end":"2019-12-31","val":390627000,"accn":"0000874238-20-000120","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-03"},{"end":"2019-12-31","val":390627000,"accn":"0000874238-21-000010","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-03","frame":"CY2019Q4I"},{"end":"2020-03-31","val":408828000,"accn":"0000874238-20-000056","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-05","frame":"CY2020Q1I"},{"end":"2020-06-30","val":367028000,"accn":"0000874238-20-000089","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-04","frame":"CY2020Q2I"},{"end":"2020-09-30","val":335237000,"accn":"0000874238-20-000120","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-03","frame":"CY2020Q3I"},{"end":"2020-12-31","val":291249000,"accn":"0000874238-21-000010","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-03"},{"end":"2020-12-31","val":291249000,"accn":"0000874238-21-000028","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-04"},{"end":"2020-12-31","val":291249000,"accn":"0000874238-21-000069","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-03"},{"end":"2020-12-31","val":291249000,"accn":"0000874238-21-000091","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-03"},{"end":"2020-12-31","val":291249000,"accn":"0000874238-22-000023","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-01"},{"end":"2020-12-31","val":291249000,"accn":"0000874238-22-000044","fy":2021,"fp":"FY","form":"10-K/A","filed":"2022-03-24","frame":"CY2020Q4I"},{"end":"2021-03-31","val":279175000,"accn":"0000874238-21-000028","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-04","frame":"CY2021Q1I"},{"end":"2021-06-30","val":303531000,"accn":"0000874238-21-000069","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-03","frame":"CY2021Q2I"},{"end":"2021-09-30","val":299923000,"accn":"0000874238-21-000091","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-03","frame":"CY2021Q3I"},{"end":"2021-12-31","val":428588000,"accn":"0000874238-22-000023","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-01"},{"end":"2021-12-31","val":428588000,"accn":"0000874238-22-000044","fy":2021,"fp":"FY","form":"10-K/A","filed":"2022-03-24"},{"end":"2021-12-31","val":428588000,"accn":"0000874238-22-000048","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-03"},{"end":"2021-12-31","val":428588000,"accn":"0000874238-22-000079","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-02"},{"end":"2021-12-31","val":428588000,"accn":"0000874238-22-000089","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-01"},{"end":"2021-12-31","val":428507000,"accn":"0000874238-23-000023","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-28","frame":"CY2021Q4I"},{"end":"2022-03-31","val":417331000,"accn":"0000874238-22-000048","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-03","frame":"CY2022Q1I"},{"end":"2022-06-30","val":415998000,"accn":"0000874238-22-000079","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-02","frame":"CY2022Q2I"},{"end":"2022-09-30","val":407090000,"accn":"0000874238-22-000089","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-01","frame":"CY2022Q3I"},{"end":"2022-12-31","val":398735000,"accn":"0000874238-23-000023","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-28"},{"end":"2022-12-31","val":398735000,"accn":"0000874238-23-000067","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-02"},{"end":"2022-12-31","val":398735000,"accn":"0000874238-23-000108","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-08"},{"end":"2022-12-31","val":398735000,"accn":"0000874238-23-000118","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-07"},{"end":"2022-12-31","val":398735000,"accn":"0000874238-24-000032","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-27","frame":"CY2022Q4I"},{"end":"2023-03-31","val":365548000,"accn":"0000874238-23-000067","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-02","frame":"CY2023Q1I"},{"end":"2023-06-30","val":329284000,"accn":"0000874238-23-000108","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-08","frame":"CY2023Q2I"},{"end":"2023-09-30","val":321589000,"accn":"0000874238-23-000118","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-07","frame":"CY2023Q3I"},{"end":"2023-12-31","val":314996000,"accn":"0000874238-24-000032","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-27"},{"end":"2023-12-31","val":314996000,"accn":"0000874238-24-000081","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-07"},{"end":"2023-12-31","val":314996000,"accn":"0000874238-24-000121","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-06"},{"end":"2023-12-31","val":314996000,"accn":"0000874238-24-000144","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-07"},{"end":"2023-12-31","val":314996000,"accn":"0000874238-25-000025","fy":2024,"fp":"FY","form":"10-K","filed":"2025-02-26","frame":"CY2023Q4I"},{"end":"2024-03-31","val":308721000,"accn":"0000874238-24-000081","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-07","frame":"CY2024Q1I"},{"end":"2024-06-30","val":302459000,"accn":"0000874238-24-000121","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-06","frame":"CY2024Q2I"},{"end":"2024-09-30","val":296185000,"accn":"0000874238-24-000144","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-07","frame":"CY2024Q3I"},{"end":"2024-12-31","val":289898000,"accn":"0000874238-25-000025","fy":2024,"fp":"FY","form":"10-K","filed":"2025-02-26"},{"end":"2024-12-31","val":289898000,"accn":"0000874238-25-000069","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-06"},{"end":"2024-12-31","val":289898000,"accn":"0000874238-25-000122","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-05"},{"end":"2024-12-31","val":289898000,"accn":"0000874238-25-000136","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-04"},{"end":"2024-12-31","val":289898000,"accn":"0000874238-26-000024","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-03-31","val":283603000,"accn":"0000874238-25-000069","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-06","frame":"CY2025Q1I"},{"end":"2025-06-30","val":283050000,"accn":"0000874238-25-000122","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-05","frame":"CY2025Q2I"},{"end":"2025-09-30","val":279479000,"accn":"0000874238-25-000136","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-04","frame":"CY2025Q3I"},{"end":"2025-12-31","val":275903000,"accn":"0000874238-26-000024","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-26"},{"end":"2025-12-31","val":275903000,"accn":"0000874238-26-000055","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-05"},{"end":"2025-12-31","val":275903000,"accn":"0000874238-26-000103","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-04","frame":"CY2025Q4I"},{"end":"2026-03-31","val":272321000,"accn":"0000874238-26-000055","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-05","frame":"CY2026Q1I"},{"end":"2026-06-30","val":268734000,"accn":"0000874238-26-000103","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-04","frame":"CY2026Q2I"}]}}