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Commitments and Contingencies - Asset Retirement Obligations (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]    
Balance at beginning of period $ 28,079 $ 18,416
Liabilities incurred 1,865 7,952
Liabilities associated with disposed assets (1,716) (22)
Accretion expense 1,713 1,733
Balance at end of period $ 29,941 $ 28,079