Investment in Hotels (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Line Items]
Investment in hotels, gross	$ 2,723,862,000	$ 2,941,690,000
Accumulated depreciation	(929,298,000)	(987,895,000)
Investment in hotels, net	1,794,564,000	1,953,795,000
Improvements and additions to hotels	121,475,000	89,042,000	38,936,000
Building and improvements
Property, Plant and Equipment [Line Items]
Investment in hotels, gross	1,962,164,000	2,104,522,000
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Investment in hotels, gross	488,237,000	516,690,000
Fully Depreciated Assets Retired	53,600,000
Land
Property, Plant and Equipment [Line Items]
Investment in hotels, gross	248,614,000	273,000,000
Construction in progress
Property, Plant and Equipment [Line Items]
Investment in hotels, gross	$ 24,847,000	$ 47,478,000