Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Mar. 31, 2025
Operating Loss Carryforwards [Line Items]
Provision for income taxes	$ 10,862	$ 5,915	$ 17,472	$ 7,099
Effective income tax rate	(24.00%)	(5.00%)	(19.00%)	(5.00%)
Valuation allowance	$ 459,000		$ 459,000		$ 430,500
Increase (decrease) in gross unrecognized tax benefits	3,200		7,300
Increase (decrease) in unrecognized tax benefits income tax penalties and interest expense	2,300		1,400
Impact on effective tax rate	14,200		14,200
Unrecognized tax benefits	195,500		195,500
One Big Beautiful Bill Act [Member]
Operating Loss Carryforwards [Line Items]
Incremental non-cash tax expense	$ 6,500		$ 6,500