Indebtedness - Long-Term Debt (Detail) - USD ($) $ in Thousands	Mar. 31, 2025	Mar. 31, 2024	Jul. 01, 2021
Debt Instrument [Line Items]
Revolving Credit Facility	$ 200,000	$ 170,000
Long-Term Debt, Gross, Total	1,246,250	1,102,500
Less: Current Portion of Long-term Debt	(15,000)	(10,000)
Less: Unamortized Discounts and Debt Issuance Costs	(7,934)	(9,201)
Long-term Debt	1,223,316	1,083,299
2.500% Senior Unsecured Notes Due 2031 [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross, Total	750,000	750,000	$ 750,000
Term Loan [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross, Total	$ 296,250	$ 182,500