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Summary of Significant Accounting Policies (Narrative) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Jul. 31, 2013 Y | Jul. 31, 2012 | Jul. 31, 2011
Interest rate charged on past due accounts | 18.00% |  |
Minimum period (in years) to capitalize interest cost | 1 |  |
Cost required to capitalize interest | $ 1.0 |  |
Document Fiscal Year Focus | 2013 |  |
Cost of certain constructed assets used in resort operations | 33.0 |  |
Average estimated useful life (in years) | 15 |  |
Interest capitalized on real estate development | 0 | 0 | 0.5
Impairment to goodwill or intangible assets | 0 | 0 | 0
Average remaining period (in years) for initiation fees recognized | 20 |  |
Refundable period (in years) for initiation fees | 30 |  |
Advertising expense | 25.5 | 22.2 | 21.2
Prepaid advertising costs | 0.4 | 0.3 |
Stated percentage in the debt instrument | 6.50% |  |
Construction Projects [Member] |  |  |
Interest capitalized | $ 0 | $ 0.1 | $ 0.1

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