Basis of Preparation and Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Mar. 31, 2022 Customer shares	Mar. 31, 2021 Customer shares	Mar. 31, 2020 Customer shares
Summary Of Significant Accounting Policy [Line Items]
Expected dividend yield	0.00%
Net Income Per Share - Anti-dilutive securities
Summary Of Significant Accounting Policy [Line Items]
Shares excluded from the calculation of diluted weighted average shares outstanding | shares	101,000	168,000	232,000
Customer Concentration Risk | Total Revenues
Summary Of Significant Accounting Policy [Line Items]
Number of customers that accounted for more than 10% of total revenues / receivables	0	0	0
Customer Concentration Risk | Total Accounts Receivable
Summary Of Significant Accounting Policy [Line Items]
Number of customers that accounted for more than 10% of total receivables	0	0