Hotel Operating Revenue, Departmental Expenses and Other Property-Related Costs (Schedule of Other Property-Related Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Hotel Operating Revenue, Departmental Expenses, and Other Property-Related Costs [Line Items]
Other property-related costs	$ 65,508	$ 62,151	$ 129,943	$ 122,683
Other property-related costs as a percent of total hotel operating revenue	25.60%	26.00%	27.20%	27.50%
Hotel General and Administrative Expense [Member]
Hotel Operating Revenue, Departmental Expenses, and Other Property-Related Costs [Line Items]
Other property-related costs	22,308	20,464	43,669	40,607
Other property-related costs as a percent of total hotel operating revenue	8.70%	8.50%	9.20%	9.10%
Marketing [Member]
Hotel Operating Revenue, Departmental Expenses, and Other Property-Related Costs [Line Items]
Other property-related costs	20,734	19,300	41,361	37,782
Other property-related costs as a percent of total hotel operating revenue	8.10%	8.10%	8.70%	8.50%
Repair and Maintenance [Member]
Hotel Operating Revenue, Departmental Expenses, and Other Property-Related Costs [Line Items]
Other property-related costs	12,481	11,705	24,944	23,166
Other property-related costs as a percent of total hotel operating revenue	4.90%	4.90%	5.20%	5.20%
Utilities [Member]
Hotel Operating Revenue, Departmental Expenses, and Other Property-Related Costs [Line Items]
Other property-related costs	$ 9,985	$ 10,682	$ 19,969	$ 21,128
Other property-related costs as a percent of total hotel operating revenue	3.90%	4.50%	4.10%	4.70%