Income Taxes - Reconciliation of Consolidated Liability for Gross Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Balance at Beginning of Year	$ 1,284	$ 1,284	$ 1,284
Increase Related to Current Tax Positions	0	0	0
Decrease Related to Current Tax Positions	0	0	0
Payments	0	0	0
Balance at End of Year	$ 1,284	$ 1,284	$ 1,284