Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
	May 31, 2023	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Interest rate swap agreements | Term Loan Facility, Due 2030
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative term	2 years
Notional amount	$ 300.0
Interest rate swap agreements | Term Loan Facility, Due 2030 | SOFR
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Capped interest rate (as a percent)	3.899%
Forward interest rate collar | Term Loan Facility, Due 2030
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount	$ 300.0
Interest rate swaps and collars
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) on derivative instruments		$ 2.9	$ (1.8)	$ (8.9)
Interest rate swaps and collars | Prepaid expenses and other current assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities		3.7
Interest rate swaps and collars | Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities		$ 7.6