Leases - Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from finance leases	$ 64	$ 57
Operating cash flows from operating leases	26,022	27,406
Financing cash flows from finance leases	268	275
Supplemental non-cash information on lease liabilities arising from right-of-use assets:
Right-of-use assets obtained in exchange for new finance lease liabilities	302	811
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 28,184	$ 31,284