Revenue from Contracts with Customers - Schedule of Revenues Disaggregated by Major Revenue Categories and by Occurrence (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation Of Revenue [Line Items]
Total revenues	$ 159,443	$ 149,286	$ 312,745	$ 295,370
Subscription Services
Disaggregation Of Revenue [Line Items]
Total revenues	43,416	41,139	86,175	79,423
Support And Maintenance
Disaggregation Of Revenue [Line Items]
Total revenues	38,150	39,004	77,288	77,490
Managed Services
Disaggregation Of Revenue [Line Items]
Total revenues	31,055	28,207	61,700	56,115
Transactional And Data Services
Disaggregation Of Revenue [Line Items]
Total revenues	30,882	27,259	58,099	54,962
Recurring Revenue
Disaggregation Of Revenue [Line Items]
Total revenues	143,503	135,609	283,262	267,990
Software License and Hardware
Disaggregation Of Revenue [Line Items]
Total revenues	7,916	8,068	14,115	15,282
Other Non-recurring Services
Disaggregation Of Revenue [Line Items]
Total revenues	8,024	5,609	15,368	12,098
Software, Hardware, and Other Non-recurring
Disaggregation Of Revenue [Line Items]
Total revenues	$ 15,940	$ 13,677	$ 29,483	$ 27,380