Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Sep. 30, 2023	Mar. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	$ 881,479	$ 757,600
Interest rate cap contracts	72,237
Total assets measured at fair value on a recurring basis	953,716	757,600
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	881,479	757,600
Total assets measured at fair value on a recurring basis	881,479	$ 757,600
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate cap contracts	72,237
Total assets measured at fair value on a recurring basis	$ 72,237