Taxes, Insurance and Lease Expense (Schedule of Taxes, Insurance and Lease Expense) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Taxes, Insurance and Lease Expense [Line Items]
Real estate and other taxes	$ 8,025,000	$ 7,637,000	$ 16,133,000	$ 15,232,000
Property insurance, general liability insurance and other	2,511,000	2,278,000	5,183,000	4,896,000
Total taxes, insurance and lease expense	26,992,000	24,853,000	50,625,000	47,017,000
Hotel Lease [Member]
Taxes, Insurance and Lease Expense [Line Items]
Lease expense	13,296,000	12,166,000	23,687,000	21,723,000
Percentage rent	7,800,000	6,700,000	12,700,000	10,800,000
Land Lease [Member]
Taxes, Insurance and Lease Expense [Line Items]
Lease expense	3,160,000	2,772,000	5,622,000	5,166,000
Percentage rent	$ 1,700,000	$ 1,300,000	$ 2,700,000	$ 2,300,000
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	12		12
Ownership percentage of lessee	49.00%		49.00%
Equity method ownership percentage of lessor	50.00%		50.00%