Line of Credit - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Mar. 31, 2021	Mar. 12, 2021	Mar. 29, 2018
Line Of Credit Facility [Line Items]
Loans outstanding	$ 0		$ 0		$ 0
Remaining borrowing capacity	300,000,000		300,000,000		$ 300,000,000
Interest expense	194,000	$ 452,000	577,000	$ 2,308,000
Amortization of debt issuance costs	127,000	$ 177,000	381,000	$ 532,000
Revolving Credit Facility
Line Of Credit Facility [Line Items]
Maximum borrowing capacity	$ 150,000,000		$ 150,000,000			$ 300,000,000	$ 300,000,000
Credit agreement maturity date			Mar. 12, 2026
Letter of Credit
Line Of Credit Facility [Line Items]
Maximum borrowing capacity						10,000,000
Swing-Line Loans
Line Of Credit Facility [Line Items]
Maximum borrowing capacity						$ 10,000,000