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Other Intangible Assets Major Classes (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
May 31, 2013 | May 31, 2012
Intangible Assets by Major Class [Line Items] |  |
Total Other Intangible Assets gross carrying amount | $ 679,273 | $ 538,368
Amortized intangible assets, gross carrying amount | 491,834 | 389,437
Amortized intangible assets, accumulated amortization | 219,660 | 192,748
Amortized intangible assets, net other intangible assets | 272,174 | 196,689
Total Other Intangible Assets, net | 459,613 | 345,620
Formulae |  |
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, gross carrying amount | 216,418 | 174,190
Amortized intangible assets, accumulated amortization | 113,315 | 103,414
Amortized intangible assets, net other intangible assets | 103,103 | 70,776
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 | 196,376 | 139,824
Amortized intangible assets, accumulated amortization | 66,077 | 52,616
Amortized intangible assets, net other intangible assets | 130,299 | 87,208
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 | 30,223 | 26,050
Amortized intangible assets, accumulated amortization | 13,222 | 11,192
Amortized intangible assets, net other intangible assets | 17,001 | 14,858
Indefinite-lived intangible assets, net other intangible assets | 187,439 | 148,931
Tradenames and Trademarks | Minimum |  |
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, amortization period | 2 years | 4 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 | 48,817 | 49,373
Amortized intangible assets, accumulated amortization | 27,046 | 25,526
Amortized intangible assets, net other intangible assets | $ 21,771 | $ 23,847
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 | 40 years | 40 years

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