Annual report pursuant to Section 13 and 15(d)

VARIABLE INTEREST ENTITIES AND OTHER INVESTMENTS IN SIGNIFICANT AFFILIATES - Other Significant Affiliates - Unconsolidated (Details)

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VARIABLE INTEREST ENTITIES AND OTHER INVESTMENTS IN SIGNIFICANT AFFILIATES - Other Significant Affiliates - Unconsolidated (Details) - USD ($)
$ in Thousands
1 Months Ended 5 Months Ended 12 Months Ended
Jun. 30, 2020
Mar. 31, 2020
Mar. 31, 2022
Mar. 31, 2021
Schedule of Equity Method Investments [Line Items]        
Investment in unconsolidated affiliates     $ 585 $ 4,530
Cougar        
Schedule of Equity Method Investments [Line Items]        
Voting interest     25.00%  
Economic interest     40.00%  
Impairment of investment in unconsolidated affiliates     $ 51,900  
Cougar | Fair Value        
Schedule of Equity Method Investments [Line Items]        
Investment in unconsolidated affiliates     4,700  
Cougar | Carrying Amount        
Schedule of Equity Method Investments [Line Items]        
Investment in unconsolidated affiliates     56,600  
Petroleum Air Services        
Schedule of Equity Method Investments [Line Items]        
Impairment of investment in unconsolidated affiliates     $ 16,000  
Economic interest     25.00%  
Cost method investment     $ 17,000 $ 33,000
Lider        
Schedule of Equity Method Investments [Line Items]        
Impairment of investment in unconsolidated affiliates $ 18,700 $ 9,600 $ 18,700