Annual report pursuant to Section 13 and 15(d)

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

v3.22.2
Goodwill and Intangible Assets, Net of Accumulated Amortization (Narrative) (Details) - USD ($)
12 Months Ended
May 31, 2022
May 31, 2021
May 31, 2020
Goodwill and Intangible Assets [Line Items]      
Amortization expense $ 58,100,000 $ 68,600,000 $ 81,900,000
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