Summary of Significant Accounting Policies (Narrative) (Details) $ in Thousands	12 Months Ended
Jul. 31, 2018 USD ($) yr	Jul. 31, 2017 USD ($)	Jul. 31, 2016 USD ($)
Impact of Tax Reform	$ 71,077	$ 9,878	$ 5,667
Impairment to goodwill or intangible assets	$ 0	0	0
Average remaining period (in years) for initiation fees recognized \| yr	12
Refundable period (in years) for initiation fees \| yr	30
Advertising expense	$ 39,800	40,000	32,300
Net Cash Provided by (Used in) Operating Activities	551,625	473,189	436,977
Net Cash Provided by (Used in) Investing Activities	(134,579)	(682,836)	(124,016)
Net Cash Provided by (Used in) Financing Activities	(350,715)	255,617	(281,432)
Effect of exchange rate changes on cash and cash equivalents	(5,575)	3,522	909
Cash and Cash Equivalents, Period Increase (Decrease)	$ 60,756	49,492	32,438
Prior Period Reclassification Adjustment		$ (16,275)	$ (10,215)

Recognized private club initiation fees, average remaining period.

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Private club recognized initiation fees, refund period.

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.

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Amount of increase (decrease) from the effect of exchange rate changes on cash and cash equivalent balances held in foreign currencies.

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Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

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Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The amount of a reclassification adjustment made to prior period financial statement amounts.

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