Reconciliation of Consolidated Liability for Gross Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Balance at Beginning of Year	$ 1,284	$ 4,200
Increase Related to Current Tax Positions	0	1,284	$ 4,200
Decrease Related to Current Tax Positions	0	(4,200)
Balance at End of Year	$ 1,284	$ 1,284	$ 4,200