Debt - Long Term Debt (Detail) - USD ($) $ in Thousands	Mar. 31, 2025	Mar. 31, 2024
Debt Instrument [Line Items]
Long-term debt gross	$ 1,090,000	$ 810,000
Unamortized debt issuance expense	6,459	8,035
Long-term debt, net of unamortized issuance costs	1,083,541	801,965
Senior Notes
Debt Instrument [Line Items]
Long-term debt	600,000	600,000
Unamortized debt issuance expense	5,276	6,064
Line Of Credit And Secured Debt | Fourth Amended Credit Facility, due 2026 | Secured Debt
Debt Instrument [Line Items]
Incremental term loan commitment	490,000	210,000
Unamortized debt issuance expense	$ 1,183	$ 1,971