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Supplementary Balance Sheet Information (Composition Of Goodwill And Intangible Assets) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jul. 31, 2017
Jul. 31, 2016
Jul. 31, 2015
Disposal Group, Including Discontinued Operation, Intangible Assets   $ 39,400  
Goodwill $ 1,537,097 526,391  
Accumulated amortization (17,354) (17,354)  
Goodwill, net 1,519,743 509,037 $ 500,433
Indefinite-Lived Trademarks 216,923 67,705  
Other Indefinite-lived Intangible Assets 41,275 37,548  
Gross indefinite-lived intangible assets 258,198 105,253  
Accumulated amortization (24,713) (24,713)  
Indefinite-lived intangible assets, net 233,485 80,540  
Gross amortizable intangible assets 39,071 37,635  
Other Finite-Lived Intangible Assets, Gross 49,804 41,889  
Finite-Lived Intangible Assets, Gross 88,875 79,524  
Accumulated amortization (27,428) (20,057)  
Amortizable intangible assets, net 61,447 59,467  
Total gross intangible assets 347,073 184,777  
Total accumulated amortization (52,141) (44,770)  
Net Intangible Assets Excluding Goodwill 294,932 140,007  
Amortization of Intangible Assets 8,300 $ 4,700 $ 5,100
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months $ 3,000