Goodwill and Other Long-Lived Assets - Summary of Other Intangible Assets by Class (Detail) - USD ($) $ in Thousands	May 31, 2021	May 31, 2020
Other Intangible Assets [Line Items]
Indefinite-lived intangibles assets, Cost	$ 99,901	$ 72,101
Definite-lived intangibles assets, Cost	220,999	205,088
Total intangible assets, Cost	320,900	277,189
Definite-lived intangible assets, Accumulated Amortization	80,513	92,774
Trademarks
Other Intangible Assets [Line Items]
Indefinite-lived intangibles assets, Cost	99,901	72,101
Customer relationships
Other Intangible Assets [Line Items]
Definite-lived intangibles assets, Cost	198,234	170,887
Definite-lived intangible assets, Accumulated Amortization	72,499	73,207
Non-compete agreements
Other Intangible Assets [Line Items]
Definite-lived intangibles assets, Cost	4,098	8,001
Definite-lived intangible assets, Accumulated Amortization	4,098	8,001
Technology / know-how
Other Intangible Assets [Line Items]
Definite-lived intangibles assets, Cost	13,165	22,484
Definite-lived intangible assets, Accumulated Amortization	3,614	7,850
Other
Other Intangible Assets [Line Items]
Definite-lived intangibles assets, Cost	5,502	3,716
Definite-lived intangible assets, Accumulated Amortization	$ 302	$ 3,716