Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Related Party Amounts	$ 25,000
Accounts Receivable [Member]
Related Party Amounts	0	$ 0	$ 2,000
Accounts Payable [Member]
Related Party Amounts	8,145	191	4,231
Accrued Expenses And Other Current Liabilities [Member]
Related Party Amounts	(1,293)	3,517	(2,599)
Deferred Revenue [Member]
Related Party Amounts	(20,959)	(14,917)	251
Exercise Of Stock Options [Member]
Related Party Amounts	0	67,359	0
PIPE [Member]
Related Party Amounts	$ 25,000	$ 0	$ 0