Supplementary Balance Sheet Information (Components Of Other Long-Term Liabilities) (Details) - USD ($) $ in Thousands	Jan. 31, 2018	Jul. 31, 2017	Jan. 31, 2017
Balance Sheet Related Disclosures [Abstract]
Private club deferred initiation fee revenue	$ 116,726	$ 118,417	$ 120,659
Unfavorable lease obligation, net	23,309	24,664	25,953
Other long-term liabilities	149,758	158,655	125,323
Total other long-term liabilities	$ 289,793	$ 301,736	$ 271,935