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Capitalized Software Costs - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
Research And Development [Abstract]      
Impairments related to write down of capitalized software costs   $ 3,198  
Amortization of capitalized software costs $ 20,108 $ 17,085 $ 11,338
Retired fully amortized capitalized software costs     $ 13,453