Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Apr. 30, 2012	Apr. 30, 2011	Apr. 30, 2012		Apr. 30, 2011
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue and expenses from payroll cost reimbursement	$ 5,600,000		$ 18,900,000
Lodging net revenue	53,972,000	57,477,000	155,872,000		160,270,000
Lodging expenses	47,103,000	48,643,000	149,497,000		149,012,000
Scenario, Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lodging net revenue		49,800,000			138,900,000
Lodging expenses		$ 41,000,000			$ 127,700,000
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]
6.75% Notes [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt instrument, stated percentage	6.75%		6.75%
Year of maturity			—	[1]

[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.