{"cik":94049,"taxonomy":"us-gaap","tag":"LongTermDebt","label":"Long-term Debt","description":"Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","entityName":"STEPAN COMPANY","units":{"USD":[{"end":"2011-12-31","val":199454000,"accn":"0001193125-12-334086","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":199454000,"accn":"0001193125-12-448218","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":199454000,"accn":"0001193125-13-079199","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-27","frame":"CY2011Q4I"},{"end":"2012-06-30","val":195343000,"accn":"0001193125-12-334086","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":188151000,"accn":"0001193125-12-448218","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":182402000,"accn":"0001193125-13-079199","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-27"},{"end":"2012-12-31","val":182402000,"accn":"0001193125-13-196318","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-02"},{"end":"2012-12-31","val":182402000,"accn":"0001193125-13-311741","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-31"},{"end":"2012-12-31","val":182402000,"accn":"0001193125-13-417585","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-30"},{"end":"2012-12-31","val":182402000,"accn":"0001193125-14-069059","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-26","frame":"CY2012Q4I"},{"end":"2013-03-31","val":193916000,"accn":"0001193125-13-196318","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-02","frame":"CY2013Q1I"},{"end":"2013-06-27","val":100000000,"accn":"0001193125-13-311741","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-31"},{"end":"2013-06-27","val":100000000,"accn":"0001193125-13-417585","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-30"},{"end":"2013-06-27","val":100000000,"accn":"0001193125-14-069059","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-26"},{"end":"2013-06-30","val":285444000,"accn":"0001193125-13-311741","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-31","frame":"CY2013Q2I"},{"end":"2013-09-30","val":276805000,"accn":"0001193125-13-417585","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-30","frame":"CY2013Q3I"},{"end":"2013-12-31","val":270623000,"accn":"0001193125-14-069059","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-26"},{"end":"2013-12-31","val":270623000,"accn":"0001193125-14-171098","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-30"},{"end":"2013-12-31","val":270623000,"accn":"0001193125-14-285984","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-30"},{"end":"2013-12-31","val":270623000,"accn":"0001193125-14-386406","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-29"},{"end":"2013-12-31","val":270623000,"accn":"0001564590-15-001079","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":269639000,"accn":"0001193125-14-171098","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-30","frame":"CY2014Q1I"},{"end":"2014-06-30","val":271322000,"accn":"0001193125-14-285984","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-30","frame":"CY2014Q2I"},{"end":"2014-09-30","val":265162000,"accn":"0001193125-14-386406","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-29","frame":"CY2014Q3I"},{"end":"2014-12-31","val":273931000,"accn":"0001564590-15-001079","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":273931000,"accn":"0001564590-15-002977","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-04-29"},{"end":"2014-12-31","val":273931000,"accn":"0001564590-15-005756","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-29"},{"end":"2014-12-31","val":273931000,"accn":"0001564590-15-008724","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-28"},{"end":"2014-12-31","val":273931000,"accn":"0001564590-16-013219","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-24","frame":"CY2014Q4I"},{"end":"2015-03-31","val":283736000,"accn":"0001564590-15-002977","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-04-29","frame":"CY2015Q1I"},{"end":"2015-06-30","val":260470000,"accn":"0001564590-15-005756","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-29","frame":"CY2015Q2I"},{"end":"2015-09-30","val":341453000,"accn":"0001564590-15-008724","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-28","frame":"CY2015Q3I"},{"end":"2015-12-31","val":332623000,"accn":"0001564590-16-013219","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-24"},{"end":"2015-12-31","val":331354000,"accn":"0001564590-16-017085","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-04-29"},{"end":"2015-12-31","val":331354000,"accn":"0001564590-16-021755","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-07-29"},{"end":"2015-12-31","val":331354000,"accn":"0001564590-16-026439","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-10-28"},{"end":"2015-12-31","val":331354000,"accn":"0001564590-17-002324","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":327850000,"accn":"0001564590-16-017085","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-04-29","frame":"CY2016Q1I"},{"end":"2016-06-30","val":321357000,"accn":"0001564590-16-021755","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-07-29","frame":"CY2016Q2I"},{"end":"2016-09-30","val":326147000,"accn":"0001564590-16-026439","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-10-28","frame":"CY2016Q3I"},{"end":"2016-12-31","val":317013000,"accn":"0001564590-17-002324","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":317013000,"accn":"0001564590-17-007517","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-04-27"},{"end":"2016-12-31","val":317013000,"accn":"0001564590-17-014350","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-07-28"},{"end":"2016-12-31","val":317013000,"accn":"0001564590-17-020263","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-10-27"},{"end":"2016-12-31","val":317013000,"accn":"0001564590-18-003442","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-27","frame":"CY2016Q4I"},{"end":"2017-03-31","val":316746000,"accn":"0001564590-17-007517","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-04-27","frame":"CY2017Q1I"},{"end":"2017-06-30","val":304441000,"accn":"0001564590-17-014350","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-07-28","frame":"CY2017Q2I"},{"end":"2017-09-30","val":304426000,"accn":"0001564590-17-020263","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-10-27","frame":"CY2017Q3I"},{"end":"2017-12-31","val":290799000,"accn":"0001564590-18-003442","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-27"},{"end":"2017-12-31","val":290799000,"accn":"0001564590-18-009963","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-01"},{"end":"2017-12-31","val":290799000,"accn":"0001564590-18-018301","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-01"},{"end":"2017-12-31","val":290799000,"accn":"0001564590-18-026046","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-01"},{"end":"2017-12-31","val":290799000,"accn":"0001564590-19-004767","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-27","frame":"CY2017Q4I"},{"end":"2018-03-31","val":290813000,"accn":"0001564590-18-009963","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-01","frame":"CY2018Q1I"},{"end":"2018-06-30","val":286816000,"accn":"0001564590-18-018301","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-01","frame":"CY2018Q2I"},{"end":"2018-09-30","val":286237000,"accn":"0001564590-18-026046","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-01","frame":"CY2018Q3I"},{"end":"2018-12-31","val":276080000,"accn":"0001564590-19-004767","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-27"},{"end":"2018-12-31","val":276080000,"accn":"0001564590-19-016253","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":276080000,"accn":"0001564590-19-027273","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-07-31"},{"end":"2018-12-31","val":276080000,"accn":"0001564590-19-038724","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-10-30"},{"end":"2018-12-31","val":276080000,"accn":"0001564590-20-007326","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-27","frame":"CY2018Q4I"},{"end":"2019-03-31","val":271862000,"accn":"0001564590-19-016253","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":232637000,"accn":"0001564590-19-027273","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-07-31","frame":"CY2019Q2I"},{"end":"2019-09-30","val":231920000,"accn":"0001564590-19-038724","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-10-30","frame":"CY2019Q3I"},{"end":"2019-12-31","val":222103000,"accn":"0001564590-20-007326","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-27"},{"end":"2019-12-31","val":222103000,"accn":"0001564590-20-020009","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-04-30"},{"end":"2019-12-31","val":222103000,"accn":"0001564590-20-034590","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-07-30"},{"end":"2019-12-31","val":222103000,"accn":"0001564590-20-048639","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-10-29"},{"end":"2019-12-31","val":222103000,"accn":"0001564590-21-009289","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-26","frame":"CY2019Q4I"},{"end":"2020-03-31","val":222137000,"accn":"0001564590-20-020009","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-04-30","frame":"CY2020Q1I"},{"end":"2020-06-30","val":207886000,"accn":"0001564590-20-034590","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-07-30","frame":"CY2020Q2I"},{"end":"2020-09-30","val":207920000,"accn":"0001564590-20-048639","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-10-29","frame":"CY2020Q3I"},{"end":"2020-12-31","val":198669000,"accn":"0001564590-21-009289","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-26"},{"end":"2020-12-31","val":198669000,"accn":"0001564590-21-024695","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-06"},{"end":"2020-12-31","val":198669000,"accn":"0001564590-21-041265","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":198669000,"accn":"0001564590-21-054350","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-04"},{"end":"2020-12-31","val":198669000,"accn":"0001564590-22-006982","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-25","frame":"CY2020Q4I"},{"end":"2021-03-31","val":248372000,"accn":"0001564590-21-024695","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-06","frame":"CY2021Q1I"},{"end":"2021-06-30","val":238881000,"accn":"0001564590-21-041265","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":279840000,"accn":"0001564590-21-054350","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-04","frame":"CY2021Q3I"},{"end":"2021-12-31","val":363580000,"accn":"0001564590-22-006982","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-25"},{"end":"2021-12-31","val":363580000,"accn":"0001564590-22-018101","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":363580000,"accn":"0001564590-22-027928","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-04"},{"end":"2021-12-31","val":363580000,"accn":"0000950170-22-021679","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-03"},{"end":"2021-12-31","val":363580000,"accn":"0000950170-23-004933","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-28","frame":"CY2021Q4I"},{"end":"2022-03-31","val":537114000,"accn":"0001564590-22-018101","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":525992000,"accn":"0001564590-22-027928","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-04","frame":"CY2022Q2I"},{"end":"2022-09-30","val":564920000,"accn":"0000950170-22-021679","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-03","frame":"CY2022Q3I"},{"end":"2022-12-31","val":587140000,"accn":"0000950170-23-004933","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-28"},{"end":"2022-12-31","val":587140000,"accn":"0000950170-23-017643","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":587140000,"accn":"0000950170-23-037671","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":587140000,"accn":"0000950170-23-057942","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-02"},{"end":"2022-12-31","val":587140000,"accn":"0000950170-24-022778","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-29","frame":"CY2022Q4I"},{"end":"2023-03-31","val":711040000,"accn":"0000950170-23-017643","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":682629000,"accn":"0000950170-23-037671","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":649389000,"accn":"0000950170-23-057942","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-02","frame":"CY2023Q3I"},{"end":"2023-12-31","val":654146000,"accn":"0000950170-24-022778","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-29"},{"end":"2023-12-31","val":654146000,"accn":"0000950170-24-055552","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":654146000,"accn":"0000950170-24-093579","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-08"},{"end":"2023-12-31","val":654146000,"accn":"0000950170-24-121883","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-06"},{"end":"2023-12-31","val":654146000,"accn":"0000950170-25-029079","fy":2024,"fp":"FY","form":"10-K","filed":"2025-02-27","frame":"CY2023Q4I"},{"end":"2024-03-31","val":645982000,"accn":"0000950170-24-055552","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":657058000,"accn":"0000950170-24-093579","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-08","frame":"CY2024Q2I"},{"end":"2024-09-30","val":688516000,"accn":"0000950170-24-121883","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-06","frame":"CY2024Q3I"},{"end":"2024-12-31","val":625439000,"accn":"0000950170-25-029079","fy":2024,"fp":"FY","form":"10-K","filed":"2025-02-27"},{"end":"2024-12-31","val":625439000,"accn":"0000950170-25-065195","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-07"},{"end":"2024-12-31","val":625439000,"accn":"0000950170-25-103639","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-06"},{"end":"2024-12-31","val":625439000,"accn":"0001193125-25-266074","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-05"},{"end":"2024-12-31","val":625439000,"accn":"0001193125-26-074976","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-26","frame":"CY2024Q4I"},{"end":"2025-03-31","val":659283000,"accn":"0000950170-25-065195","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-07","frame":"CY2025Q1I"},{"end":"2025-06-30","val":658030000,"accn":"0000950170-25-103639","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-06","frame":"CY2025Q2I"},{"end":"2025-09-30","val":655472000,"accn":"0001193125-25-266074","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-05","frame":"CY2025Q3I"},{"end":"2025-12-31","val":626710000,"accn":"0001193125-26-074976","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-26"},{"end":"2025-12-31","val":626710000,"accn":"0001193125-26-208061","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-06"},{"end":"2025-12-31","val":626710000,"accn":"0001193125-26-334428","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-05","frame":"CY2025Q4I"},{"end":"2026-03-31","val":651725000,"accn":"0001193125-26-208061","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-06","frame":"CY2026Q1I"},{"end":"2026-06-30","val":647354000,"accn":"0001193125-26-334428","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-05","frame":"CY2026Q2I"}]}}