Employee Benefit Plans - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2025	May 31, 2024	May 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 52,464	$ 48,272
Projected benefit obligation	63,700	64,300
Net pension liability	11,200	16,000
Supplemental Executive Retirement Plan (SERP)
Defined Benefit Plan Disclosure [Line Items]
Total contributions	$ 12,900	13,100	$ 12,300
United States Plan
Defined Benefit Plan Disclosure [Line Items]
Required years of service for plan eligibility	1 year
Total contributions	$ 129,800	115,100	99,100
Canada | DPSP and RRSP
Defined Benefit Plan Disclosure [Line Items]
Total contributions	$ 4,700	$ 4,200	$ 3,700