Discontinued Operations (Details) (USD $)	1 Months Ended		3 Months Ended		12 Months Ended	1 Months Ended	3 Months Ended	1 Months Ended		1 Months Ended
	Mar. 31, 2013 item	Jan. 31, 2013 item	Mar. 31, 2013 item	Mar. 31, 2012	Dec. 31, 2012 item	Jan. 31, 2013 Preferred equity investment	Mar. 31, 2013 Preferred equity investment	Jan. 31, 2013 Rochester Portfolio item	Mar. 31, 2013 Rochester Portfolio	Jan. 31, 2013 Kahler Grand item	Jan. 31, 2013 Commercial laundry facility	Jan. 31, 2013 Kahler Inn & Suites item	Jan. 31, 2013 Marriott Rochester item	Jan. 31, 2013 Residence Inn by Marriott Rochester item	Aug. 31, 2012 Marriott Del Mar	Mar. 31, 2012 Royal Palm Miami Beach	Sep. 30, 2012 Portfolio sale item
Discontinued Operations
Number of hotels and/or other assets sold		4	4		4			4
Number of rooms sold								1,222		660		271	202	89
Net proceeds received from sale of hotel properties and other assets								$ 195,600,000							$ 17,700,000		$ 28,600,000
Payment of deposits towards potential acquisition	6,000,000		6,000,000	2,500,000
Number of hotels for which acquisition deposits were paid	2		2
Cash proceeds held by accommodator	139,434,000	139,434,000	139,434,000					139,400,000
Non-recourse mortgage cancelled															47,100,000		75,600,000
Gain (loss) on sale		51,620,000	51,620,000	177,000				51,600,000							25,500,000	200,000	12,700,000
Preferred equity investment						25,000,000
Dividend yield on preferred equity investment (as a percent)						11.00%
Deferred gain on sale of asset	14,000,000	14,000,000	14,000,000			25,000,000		3,700,000
Dividends on the preferred equity investment							500,000
Working cash advance provided to buyer								3,700,000
Carrying value of asset net of deferred gain							0		0
Portfolio pension plan liability								14,000,000
Repayment of debt										26,700,000	400,000
Loss on extinguishment of Debt			(3,115,000)							(3,100,000)
Payments on notes payable and credit facility			(119,793,000)	(10,225,000)
Total cost to extinguish debt										29,800,000
Write-off of deferred financing fees															48,000		100,000
Accumulated other comprehensive loss
Beginning balance of accumulated other comprehensive loss		(5,335,000)	(5,335,000)
Sale of Rochester Portfolio - pension liability adjustment	5,335,000		5,335,000
Ending balance of accumulated other comprehensive loss					(5,335,000)
Discontinued Operations
Deferred incentive management fees liability assumed by buyer of hotel																	$ 2,200,000
Number of separate mortgages																	3