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Other Intangible Assets Major Classes (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
May 31, 2016 | May 31, 2015
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, gross carrying amount | $ 643,977 | $ 635,362
Amortized intangible assets, accumulated amortization | 298,407 | 262,502
Amortized intangible assets, net other intangible assets | 345,570 | 372,860
Total Other Intangible Assets gross carrying amount | 873,808 | 866,632
Total Other Intangible Assets, net | 575,401 | 604,130
Tradenames and Trademarks |  |
Intangible Assets by Major Class [Line Items] |  |
Indefinite-lived intangible assets, net other intangible assets | 229,831 | 231,270
Formulae |  |
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, gross carrying amount | 234,483 | 229,721
Amortized intangible assets, accumulated amortization | 140,376 | 131,031
Amortized intangible assets, net other intangible assets | $ 94,107 | $ 98,690
Formulae | Minimum |  |
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, amortization period | 3 years | 3 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 | $ 331,008 | $ 324,867
Amortized intangible assets, accumulated amortization | 114,469 | 91,104
Amortized intangible assets, net other intangible assets | $ 216,539 | $ 233,763
Customer-Related Intangible Assets | Minimum |  |
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, amortization period | 3 years | 3 years
Customer-Related Intangible Assets | Maximum |  |
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, amortization period | 33 years | 33 years
Tradenames and Trademarks |  |
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, gross carrying amount | $ 30,742 | $ 33,985
Amortized intangible assets, accumulated amortization | 15,817 | 14,550
Amortized intangible assets, net other intangible assets | $ 14,925 | $ 19,435
Tradenames and Trademarks | Minimum |  |
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, amortization period | 5 years | 3 years
Tradenames and Trademarks | 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 | $ 47,744 | $ 46,789
Amortized intangible assets, accumulated amortization | 27,745 | 25,817
Amortized intangible assets, net other intangible assets | $ 19,999 | $ 20,972
Other Intangible Assets | Minimum |  |
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, amortization period | 2 years | 2 years
Other Intangible Assets | Maximum |  |
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, amortization period | 20 years | 40 years

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