Annual report [Section 13 and 15(d), not S-K Item 405]

Goodwill and Intangible Assets, Net of Accumulated Amortization (Narrative) (Details)

v3.25.2
Goodwill and Intangible Assets, Net of Accumulated Amortization (Narrative) (Details) - USD ($)
12 Months Ended
May 31, 2025
May 31, 2024
May 31, 2023
Goodwill and Intangible Assets [Line Items]      
Amortization expense $ 90,700,000 $ 49,000,000 $ 48,200,000
Impairment loss relates to goodwill or intangible assets $ 0 $ 0 $ 0
Client Lists [Member]      
Goodwill and Intangible Assets [Line Items]      
Acquired intangible assets with weighted-average amortization period 8 years