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Leases - Lease Cost (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Lease, Cost [Abstract]      
Operating lease cost (cost resulting from lease payments) $ 1,950 $ 2,451 $ 2,614
Short term lease cost 16 110 52
Sublease income 0 (6) (16)
Net lease cost $ 1,966 $ 2,555 $ 2,650