Annual report pursuant to Section 13 and 15(d)

RELATED PARTY TRANSACTIONS (Details)

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RELATED PARTY TRANSACTIONS (Details)
$ in Millions
5 Months Ended 7 Months Ended 12 Months Ended
Mar. 31, 2020
USD ($)
Oct. 31, 2019
USD ($)
Mar. 31, 2022
USD ($)
aircraft
Mar. 31, 2021
USD ($)
Related Party Transaction [Line Items]        
Number of leased aircraft | aircraft     6  
Accounts receivable, related parties     $ 1.8 $ 2.6
Accounts receivable, related parties, allowance for doubtful accounts     1.3 1.3
Aircraft Leases | Affiliates        
Related Party Transaction [Line Items]        
Lease fees paid to related party $ 5.5 $ 8.6 9.8 12.9
Facility Lease | Affiliates        
Related Party Transaction [Line Items]        
Lease fees paid to related party $ 0.1 $ 0.1 $ 0.2 $ 0.2