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Leases - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2019
Mar. 31, 2021
Mar. 31, 2020
Leases [Abstract]      
Rental expense $ 11,474    
Weighted-average discount rate, operating leases   4.00% 4.00%
Weighted-average remaining operating lease term   4 years 5 months 4 days 3 years 1 month 2 days