Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Deferred Tax Valuation Allowance [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	$ 69,515	$ 74,631	$ 66,819
Charged to costs and expenses			7,812
Deductions	(1,587)	(5,116)
Balance at end of year	67,928	69,515	74,631
Allowance For Expected Credit Losses [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	318
Charged to costs and expenses	620
Deductions	(328)
Balance at end of year	610	318
Allowance for Doubtful Accounts [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	$ 318	1,220	1,634
Charged to costs and expenses		117	508
Deductions		(1,019)	(922)
Balance at end of year		$ 318	$ 1,220