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Revenue Recognition - Narrative (Details) - USD ($)
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Revenue from Contract with Customer [Abstract]      
Unbilled revenue $ 1,400,000 $ 700,000 $ 200,000
Capitalized contract acquisition costs 9,600,000 9,400,000 5,700,000
Amortization of deferred contract costs 9,755,000 6,883,000 5,070,000
Deferred contract costs, impairment losses $ 0 $ 0 $ 0