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Summary Of Significant Accounting Policies (Narrative) (Details) (USD $) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jan. 31, 2012 | Jan. 31, 2011 | Jan. 31, 2012 | Jan. 31, 2011
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Revenue and expenses from payroll cost reimbursement | $ 5,500,000 |  | $ 13,200,000 |  |
Lodging net revenue | 48,306,000 | 51,676,000 | 101,900,000 |  | 102,793,000
Lodging expenses | 47,093,000 | 50,795,000 | 102,394,000 |  | 100,369,000
Debt instrument, stated percentage | 6.50% |  | 6.50% |  |
Year of maturity | 2019 |  |  |  |
Scenario, Previously Reported [Member] |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Lodging net revenue |  | 44,700,000 |  |  | 89,100,000
Lodging expenses |  | $ 43,800,000 |  |  | $ 86,700,000
6.50% Notes [Member] |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Debt instrument, stated percentage | 6.50% |  | 6.50% |  |
Year of maturity |  |  | 2019 | [1],[2] |
[1] | Maturities are based on the Company's July 31 fiscal year end.
[2] | On April 25, 2011, the Company completed a private offering for $390.0 million of 6.50% Notes. Pursuant to the registration rights agreement executed as part of the offering of the 6.50% Notes, the Company agreed to file a registration statement for an exchange offer registered under the Securities Act of 1933. The registration statement was declared effective on November 16, 2011, and on November 17, 2011, the Company commenced its offer to exchange up to $390.0 million principal amount of newly issued 6.50% notes, registered under the Securities Act of 1933, for a like principal amount of its outstanding privately placed 6.50% Notes. The exchange offer expired on December 16, 2011 and all of the 6.50% Notes were tendered and exchanged for the new substantially identical registered notes.

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