Leases - Summary of Components of the Consolidated Statements of Cash Flow for Operating and Finance Leases (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 92,600	$ 93,350	$ 69,595
Operating cash flows from finance leases	5,259	2,074	2,449
Financing cash flows from finance leases	15,176	11,941	11,572
Right-of-use assets obtained in exchange for lease liabilities:
Operating leases	94,350	29,035	9,817
Finance leases	$ 145,625	$ 1,946	$ 2,232