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Other Intangible Assets Major Classes (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
May 31, 2017 | May 31, 2016
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, gross carrying amount | $ 674,599 | $ 643,977
Amortized intangible assets, accumulated amortization | (288,365) | (298,407)
Amortized intangible assets, accumulated impairment charge | (46,024) |
Amortized intangible assets, net other intangible assets | 340,210 | 345,570
Total Other Intangible Assets, gross carrying amount | 915,055 | 874,408
Total Other Intangible Assets, accumulated impairment charge | (53,598) | (600)
Total Other Intangible Assets, net other intangible assets | 573,092 | 575,401
Trademarks and Trade Names |  |
Intangible Assets by Major Class [Line Items] |  |
Indefinite-lived intangible assets, acquisitions | 240,456 | 230,431
Indefinite-lived intangible assets, accumulated impairment charge | (7,574) | (600)
Indefinite-lived intangible assets, net other intangible assets | 232,882 | 229,831
Formulae |  |
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, gross carrying amount | 230,140 | 234,483
Amortized intangible assets, accumulated amortization | (128,825) | (140,376)
Amortized intangible assets, accumulated impairment charge | (15,463) |
Amortized intangible assets, net other intangible assets | $ 85,852 | $ 94,107
Formulae | Minimum |  |
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, amortization period | 5 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 | $ 370,255 | $ 331,008
Amortized intangible assets, accumulated amortization | (122,772) | (114,469)
Amortized intangible assets, accumulated impairment charge | (30,363) |
Amortized intangible assets, net other intangible assets | $ 217,120 | $ 216,539
Customer-Related Intangible Assets | Minimum |  |
Intangible Assets by Major Class [Line Items] |  |
Amortized intangible assets, amortization period | 5 years | 3 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 | $ 36,461 | $ 30,742
Amortized intangible assets, accumulated amortization | (15,480) | (15,817)
Amortized intangible assets, net other intangible assets | $ 20,981 | $ 14,925
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 | $ 37,743 | $ 47,744
Amortized intangible assets, accumulated amortization | (21,288) | (27,745)
Amortized intangible assets, accumulated impairment charge | (198) |
Amortized intangible assets, net other intangible assets | $ 16,257 | $ 19,999
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 | 20 years

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