{"cik":98222,"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":"TIDEWATER INC","units":{"USD":[{"end":"2012-03-31","val":950000000,"accn":"0001193125-13-229622","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-21","frame":"CY2012Q1I"},{"end":"2013-03-31","val":1000000000,"accn":"0001193125-13-229622","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-21"},{"end":"2013-03-31","val":1000000000,"accn":"0001193125-14-208163","fy":2013,"fp":"FY","form":"10-K","filed":"2014-05-21","frame":"CY2013Q1I"},{"end":"2014-03-31","val":1514870000,"accn":"0001193125-14-208163","fy":2013,"fp":"FY","form":"10-K","filed":"2014-05-21"},{"end":"2014-03-31","val":1514870000,"accn":"0001193125-15-204166","fy":2014,"fp":"FY","form":"10-K","filed":"2015-05-28","frame":"CY2014Q1I"},{"end":"2015-03-31","val":1534476000,"accn":"0001193125-15-204166","fy":2014,"fp":"FY","form":"10-K","filed":"2015-05-28"},{"end":"2015-03-31","val":1534476000,"accn":"0001564590-16-019999","fy":2015,"fp":"FY","form":"10-K","filed":"2016-05-26","frame":"CY2015Q1I"},{"end":"2016-03-31","val":2052270000,"accn":"0001564590-16-019999","fy":2015,"fp":"FY","form":"10-K","filed":"2016-05-26"},{"end":"2016-03-31","val":2052270000,"accn":"0001564590-17-001170","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-02-08","frame":"CY2016Q1I"},{"end":"2016-12-31","val":2043001000,"accn":"0001564590-17-001170","fy":2016,"fp":"Q3","form":"10-Q","filed":"2017-02-08","frame":"CY2016Q4I"},{"end":"2017-03-31","val":2040525000,"accn":"0001564590-17-016833","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-08-09","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2039437000,"accn":"0001564590-17-016833","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-08-09","frame":"CY2017Q2I"},{"end":"2017-09-30","val":450851000,"accn":"0001564590-17-023130","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-09","frame":"CY2017Q3I"},{"end":"2017-12-31","val":448160000,"accn":"0001564590-18-005788","fy":2017,"fp":"FY","form":"10-KT","filed":"2018-03-15"},{"end":"2017-12-31","val":438827000,"accn":"0001564590-18-013505","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15"},{"end":"2017-12-31","val":438827000,"accn":"0001564590-18-021496","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14"},{"end":"2017-12-31","val":438827000,"accn":"0001193125-18-263846","fy":0,"fp":"","form":"8-K","filed":"2018-08-31"},{"end":"2017-12-31","val":438827000,"accn":"0001564590-18-029120","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"end":"2017-12-31","val":438827000,"accn":"0001564590-19-005545","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-28","frame":"CY2017Q4I"},{"end":"2018-03-31","val":439118000,"accn":"0001564590-18-013505","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-15","frame":"CY2018Q1I"},{"end":"2018-06-30","val":436403000,"accn":"0001564590-18-021496","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-14","frame":"CY2018Q2I"},{"end":"2018-09-30","val":435018000,"accn":"0001564590-18-029120","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13","frame":"CY2018Q3I"},{"end":"2018-12-31","val":431456000,"accn":"0001564590-19-005545","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-28"},{"end":"2018-12-31","val":431456000,"accn":"0001564590-19-016020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-06"},{"end":"2018-12-31","val":431456000,"accn":"0001564590-19-031272","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-09"},{"end":"2018-12-31","val":431456000,"accn":"0001564590-19-042591","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"end":"2018-12-31","val":431456000,"accn":"0001564590-20-008191","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-02","frame":"CY2018Q4I"},{"end":"2019-03-31","val":430363000,"accn":"0001564590-19-016020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-06","frame":"CY2019Q1I"},{"end":"2019-06-30","val":428378000,"accn":"0001564590-19-031272","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-09","frame":"CY2019Q2I"},{"end":"2019-09-30","val":423602000,"accn":"0001564590-19-042591","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12","frame":"CY2019Q3I"},{"end":"2019-12-31","val":297659000,"accn":"0001564590-20-008191","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-02"},{"end":"2019-12-31","val":297659000,"accn":"0001564590-20-024276","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-11"},{"end":"2019-12-31","val":297659000,"accn":"0001564590-20-034786","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-07-30","frame":"CY2019Q4I"},{"end":"2020-03-31","val":290168000,"accn":"0001564590-20-024276","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-11","frame":"CY2020Q1I"},{"end":"2020-06-30","val":290019000,"accn":"0001564590-20-034786","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-07-30","frame":"CY2020Q2I"},{"end":"2024-12-31","val":647887000,"accn":"0001437749-25-005487","fy":2024,"fp":"FY","form":"10-K","filed":"2025-02-27","frame":"CY2024Q4I"},{"end":"2025-12-31","val":670078000,"accn":"0001437749-26-006391","fy":2025,"fp":"FY","form":"10-K","filed":"2026-03-02","frame":"CY2025Q4I"}]}}