Other Intangible Assets Major Classes (Detail) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2020	May 31, 2019
Intangible Assets by Major Class [Line Items]
Amortized intangible assets, gross carrying amount	$ 732,698	$ 710,390
Amortized intangible assets, accumulated amortization	(399,028)	(365,795)
Amortized intangible assets, net other intangible assets	333,670	344,595
Total Other Intangible Assets, gross carrying amount	983,408	966,877
Total Other Intangible Assets, net other intangible assets	584,380	601,082
Trademarks and Trade Names
Intangible Assets by Major Class [Line Items]
Indefinite-lived intangible assets, acquisitions	250,710	256,487
Indefinite-lived intangible assets, net other intangible assets	250,710	256,487
Formulae
Intangible Assets by Major Class [Line Items]
Amortized intangible assets, gross carrying amount	230,621	227,208
Amortized intangible assets, accumulated amortization	(160,771)	(150,091)
Amortized intangible assets, net other intangible assets	$ 69,850	$ 77,117
Formulae | Minimum
Intangible Assets by Major Class [Line Items]
Amortized intangible assets, amortization period	9 years	9 years
Formulae | Maximum
Intangible Assets by Major Class [Line Items]
Amortized intangible assets, amortization period	33 years	33 years
Customer-Related Intangible Assets
Intangible Assets by Major Class [Line Items]
Amortized intangible assets, gross carrying amount	$ 439,153	$ 413,475
Amortized intangible assets, accumulated amortization	(197,752)	(172,238)
Amortized intangible assets, net other intangible assets	$ 241,401	$ 241,237
Customer-Related Intangible Assets | Minimum
Intangible Assets by Major Class [Line Items]
Amortized intangible assets, amortization period	5 years	5 years
Customer-Related Intangible Assets | Maximum
Intangible Assets by Major Class [Line Items]
Amortized intangible assets, amortization period	33 years	33 years
Trademarks and Trade Names
Intangible Assets by Major Class [Line Items]
Amortized intangible assets, gross carrying amount	$ 30,700	$ 32,998
Amortized intangible assets, accumulated amortization	(17,224)	(16,867)
Amortized intangible assets, net other intangible assets	$ 13,476	$ 16,131
Trademarks and Trade Names | Minimum
Intangible Assets by Major Class [Line Items]
Amortized intangible assets, amortization period	5 years	5 years
Trademarks and Trade Names | Maximum
Intangible Assets by Major Class [Line Items]
Amortized intangible assets, amortization period	40 years	40 years
Other Intangible Assets
Intangible Assets by Major Class [Line Items]
Amortized intangible assets, gross carrying amount	$ 32,224	$ 36,709
Amortized intangible assets, accumulated amortization	(23,281)	(26,599)
Amortized intangible assets, net other intangible assets	$ 8,943	$ 10,110
Other Intangible Assets | Minimum
Intangible Assets by Major Class [Line Items]
Amortized intangible assets, amortization period	1 year	1 year
Other Intangible Assets | Maximum
Intangible Assets by Major Class [Line Items]
Amortized intangible assets, amortization period	33 years	33 years