Fair Value Measurements - Narrative (Details) $ in Millions, $ in Millions	12 Months Ended
	Apr. 30, 2025 USD ($)	Apr. 30, 2024 USD ($)	Apr. 30, 2023 USD ($)	Apr. 30, 2025 CAD ($)	Jul. 02, 2024 USD ($)	Jul. 02, 2024 CAD ($)	May 31, 2023 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of operating lease ROU assets	$ 3.4
Yvon
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current contingent consideration liability	5.7
Noncurrent contingent consideration liability	22.4
Maximum | Yvon
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	33.5			$ 46.0	$ 33.5	$ 46.0
Minimum | Yvon
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	0.0				$ 0.0
Interest rate swap agreements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) on derivative instruments	2.8	$ 2.9	$ (1.8)
Expected earnings to be reclassified during next twelve months	0.2
Interest rate swap agreements | Prepaid expenses and other current assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0.2
Interest rate swap agreements | Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	$ 0.3
Interest rate swap agreements | Term Loan Facility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount							$ 300.0
Capped interest rate (as a percent)	3.899%			3.899%
Forward interest rate collar | Term Loan Facility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount							$ 300.0