Senior Notes and Other Long-Term Debt - Aggregate Payments on Long-Term Debt Obligations (Detail) - USD ($) $ in Thousands		Mar. 31, 2025	Mar. 31, 2024
Maturities of Long-term Debt [Abstract]
Fiscal year ending 2026	[1]	$ 503,825
Fiscal year ending 2027		334,084
Fiscal year ending 2028		631,682
Fiscal year ending 2029		1,085,049
Fiscal year ending 2030		3,223,016
Thereafter		1,426,619
Total debt		7,204,275	$ 7,475,842
Unamortized discount, debt issuance costs and fair value adjustments made in purchase accounting		(168,166)	$ (288,553)
Total		$ 7,036,109

[1] The 2025 Notes were redeemed in full subsequent to fiscal year end.