Taxes, Insurance and Lease Expense (Schedule of Taxes, Insurance and Lease Expense) (Details) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Taxes, Insurance and Lease Expense [Line Items]
Real estate and other taxes	$ 8,359,000		$ 7,394,000		$ 24,267,000		$ 20,865,000
Property insurance, general liability insurance and other	2,703,000		1,909,000		7,809,000		5,992,000
Total taxes, insurance and lease expense	25,353,000		23,015,000		71,983,000		64,231,000
Hotel Lease [Member]
Taxes, Insurance and Lease Expense [Line Items]
Hotel lease expense	10,910,000	[1]	10,582,000	[1]	31,339,000	[1]	29,383,000	[1]
Percentage rent	5,500,000		5,200,000		15,000,000		13,300,000
Land Lease [Member]
Taxes, Insurance and Lease Expense [Line Items]
Hotel lease expense	3,381,000	[2]	3,130,000	[2]	8,568,000	[2]	7,991,000	[2]
Percentage rent	$ 2,000,000		$ 1,700,000		$ 4,300,000		$ 3,600,000
Twelve Hotels [Member] | Forty-Nine Percent Owned by Non-Controlling Interest [Member] | Unconsolidated Properties (Lessor) and Consolidated Operations (Lessee) [Member]
Taxes, Insurance and Lease Expense [Line Items]
Number of hotels (in hotels)	12				12
Ownership percentage of lessee	49.00%				49.00%
Equity method ownership percentage of lessor	50.00%				50.00%

[1] Hotel lease expense is recorded by the consolidated operating lessees of 12 hotels owned by unconsolidated entities and is partially (generally 49%) offset through noncontrolling interests in other partnerships. Our 50% share of the corresponding lease income is recorded through equity in income from unconsolidated entities. Hotel lease expense includes percentage rent of $5.5 million and $5.2 million for the three months ended September 30, 2012 and 2011, respectively, and $15.0 million and $13.3 million for the nine months ended September 30, 2012 and 2011, respectively.

[2] Land lease expense includes percentage rent of $2.0 million and $1.7 million for the three months ended September 30, 2012 and 2011, respectively, and $4.3 million and $3.6 million for the nine months ended September 30, 2012 and 2011, respectively.