Hotel Operating Revenue, Departmental Expenses and Other Property-Related Costs (Schedule of Hotel Departmental Expenses) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Hotel Operating Revenue, Departmental Expenses and Other Property-Related Costs [Abstract]
Room	$ 49,794	$ 47,805	$ 144,419	$ 135,514
Room as a percent of total hotel operating revenue	21.20%	21.60%	20.90%	20.80%
Food and beverage	29,176	26,892	89,354	82,935
Food and beverage as a percent of total hotel operating revenue	12.40%	12.10%	12.90%	12.80%
Other operating departments	5,593	5,979	16,976	17,555
Other operating departments as a percent of total hotel operating revenue	2.40%	2.70%	2.40%	2.70%
Hotel departmental expenses	$ 84,563	$ 80,676	$ 250,749	$ 236,004
Hotel departmental expenses as a percent of total hotel operating revenue	36.00%	36.40%	36.20%	36.30%