Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Operating Loss Carryforwards [Line Items]
Foreign withholding related taxes	$ 24,729,000
Unrecognized tax benefits, decrease resulting from prior period tax positions	365,000
Liability for unrecognized tax benefits	5,911,000	$ 6,112,000	$ 4,426,000	$ 4,192,000
Income tax examination, interest accrued	461,000	286,000
Income tax examination, interest expense	174,000	199,000
Income tax examination, interest income			85,000
Income tax examination, penalty accrued	0	0	0
Income tax examination, penalty expense	$ 0	0	$ 0
Period within which the company does not anticipate total unrecognized tax benefits to change	within the next twelve months
Research and Development
Operating Loss Carryforwards [Line Items]
Tax credit carryforward, amount	$ 8,450,000	8,155,000
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	5,709,000	$ 10,801,000
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 1,272,000