Leases - Schedule of Supplemental Cash Flow Information Related to Operating Leases (Detail) - USD ($)	9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 11,204,000	$ 11,250,000
Operating lease liabilities arising from obtaining ROU assets	60,420,000	105,164,000
Finance lease liabilities arising from obtaining ROU assets	358,000	358,000
Reductions to ROU assets resulting from reductions to operating lease liabilities	$ 6,446,000	$ 1,466,000