Discontinued Operations (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended		0 Months Ended	9 Months Ended	0 Months Ended		3 Months Ended	9 Months Ended				0 Months Ended			9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Aug. 15, 2011 agreement	Sep. 17, 2013 Holiday Inn Express Camp Springs, MD [Member]	Sep. 30, 2013 Holiday Inn Express Camp Springs, MD [Member]	Jun. 12, 2013 Comfort Inn Harrisburg, PA [Member]	Apr. 30, 2013 585 Eighth Avenue, New York, NY [Member]	Sep. 30, 2013 Non-core Hotel Properties [Member]	Sep. 30, 2013 Non-core Hotel Properties [Member]	Sep. 20, 2013 Non-core Hotel Properties [Member] property	Feb. 23, 2012 Non-core Hotel Properties [Member] property	Aug. 15, 2011 Non-core Hotel Properties [Member] property	Sep. 20, 2013 Non-core Hotel Properties II [Member] property	Feb. 23, 2012 Non-core Hotel Properties of Unconsolidated Joint Venture [Member] property	Aug. 15, 2011 Non-core Hotel Properties of Unconsolidated Joint Venture [Member] property	Sep. 30, 2013 Comfort Inn, North Dartmouth [Member]
Assets Held for Sale [Abstract]
Number of purchase and sale agreements			2
Number of Real Estate Properties										16		18	16		4
Disposal of portfolio, aggregate purchase price												$ 155,000	$ 217,000
Number of hotel properties sold											14			3
Number of hotel properties held for sale											4			1
Net proceeds from sale of non-core hotel properties									155,000
Net proceeds from sale of hotel property				8,500		3,700	19,250
Reduction in mortgage debt resulting from sale of hotel properties sold									61,298
Gain on sale of hotel properties				149		883	5,143		4,910
Gain from transfer of title																1,216
Impairment of Discontinued Assets	$ 6,591	$ 10,314		$ 3,723	$ 3,723			$ 6,591	$ 6,591				$ 6,591