Share Based Payments (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended			3 Months Ended	9 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			12 Months Ended	3 Months Ended		9 Months Ended				9 Months Ended		9 Months Ended		9 Months Ended		9 Months Ended			9 Months Ended		3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended			12 Months Ended					0 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			9 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013 2013 Annual LTIP [Member]	Sep. 30, 2013 2013 Annual LTIP [Member]	Sep. 30, 2013 2010, 2011 and 2012 Annual LTIP [Member]	Sep. 30, 2012 2010, 2011 and 2012 Annual LTIP [Member]	Sep. 30, 2013 2010, 2011 and 2012 Annual LTIP [Member]	Sep. 30, 2012 2010, 2011 and 2012 Annual LTIP [Member]	Sep. 30, 2013 Multi-Year LTIP [Member]	Sep. 30, 2012 Multi-Year LTIP [Member]	Sep. 30, 2013 Multi-Year LTIP [Member]	Sep. 30, 2012 Multi-Year LTIP [Member]	Dec. 31, 2012 Multi-Year LTIP [Member]	Dec. 31, 2011 Multi-Year LTIP [Member] Issued 03-30-2011 [Member]	Sep. 30, 2013 Restricted Common Shares [Member]	Sep. 30, 2012 Restricted Common Shares [Member]	Sep. 30, 2013 Restricted Common Shares [Member]	Sep. 30, 2012 Restricted Common Shares [Member]	Sep. 30, 2013 Restricted Share Awards [Member]	Dec. 31, 2012 Restricted Share Awards [Member]	Sep. 30, 2013 Restricted Share Awards [Member] Issued 06-01-2009 [Member]	Dec. 31, 2012 Restricted Share Awards [Member] Issued 06-01-2009 [Member]	Sep. 30, 2013 Restricted Share Awards [Member] Issued 06-01-2010 [Member]	Dec. 31, 2012 Restricted Share Awards [Member] Issued 06-01-2010 [Member]	Sep. 30, 2013 Restricted Share Awards [Member] Issued 06-30-2011 [Member]	Dec. 31, 2012 Restricted Share Awards [Member] Issued 06-30-2011 [Member]	Sep. 30, 2013 Restricted Share Awards [Member] Issued 04-18-2012 [Member]		Dec. 31, 2012 Restricted Share Awards [Member] Issued 04-18-2012 [Member]	Sep. 30, 2013 Restricted Share Awards [Member] Issued 06-29-2012 [Member]	Dec. 31, 2012 Restricted Share Awards [Member] Issued 06-29-2012 [Member]	Sep. 30, 2013 Multi-year LTIP Trustee [Member]	Sep. 30, 2012 Multi-year LTIP Trustee [Member]	Sep. 30, 2013 Multi-year LTIP Trustee [Member]	Sep. 30, 2012 Multi-year LTIP Trustee [Member]	Dec. 31, 2012 Multi-year LTIP Trustee [Member]	Sep. 30, 2013 Multi-year LTIP Trustee [Member] Annual Retainer [Member]	Sep. 30, 2012 Multi-year LTIP Trustee [Member] Annual Retainer [Member]	Sep. 30, 2013 Multi-year LTIP Trustee [Member] Annual Retainer [Member]	Sep. 30, 2012 Multi-year LTIP Trustee [Member] Annual Retainer [Member]	Sep. 30, 2013 Multi-year LTIP Trustee [Member] Issued 12-28-2012 [Member]	Dec. 31, 2012 Multi-year LTIP Trustee [Member] Issued 12-28-2012 [Member]	Dec. 31, 2012 Multi-year LTIP Trustee [Member] Issued 06-05-2012 [Member]	Dec. 31, 2012 Non-management Trustee [Member] Issued 12-28-2012 [Member]	Dec. 31, 2011 Non-management Trustee [Member] Issued 03-30-2011 [Member]	Dec. 31, 2012 Non-management Trustee [Member] Issued 06-05-2012 [Member]	Jun. 03, 2013 Board Of Trustees [Member]	Sep. 30, 2013 Board Of Trustees [Member]	Sep. 30, 2012 Board Of Trustees [Member]	Sep. 30, 2013 Board Of Trustees [Member]	Sep. 30, 2012 Board Of Trustees [Member]	Sep. 30, 2013 Non-employees [Member]	Sep. 30, 2012 Non-employees [Member]	Sep. 30, 2013 Non-employees [Member]	Sep. 30, 2012 Non-employees [Member]	Dec. 31, 2012 Non-employees [Member]	Sep. 30, 2013 Non-employees [Member] Issued 03-26-2012 [Member]	Dec. 31, 2012 Non-employees [Member] Issued 03-26-2012 [Member]	Sep. 30, 2013 Non-employees [Member] Issued 02-01-2013 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 1,992	$ 1,923	$ 6,819	$ 6,322		$ 132	$ 266	$ 550	$ 581	$ 2,067	$ 2,095	$ 894	$ 798	$ 2,587	$ 2,394			$ 341	$ 491	$ 1,270	$ 1,421														$ 14	$ 10	$ 42	$ 36		$ 40	$ 27	$ 120	$ 82								$ 314	$ 172	$ 314	$ 172	$ 21	$ 16	$ 153	$ 122
Unearned Compensation	$ 1,856		$ 1,856		$ 1,072							$ 2,051		$ 2,051		$ 3,192						$ 4,449	$ 5,420		$ 217		$ 82	$ 33	$ 51	$ 4,020		$ 4,842	$ 139	$ 228	$ 71		$ 71		$ 113					$ 40	$ 160										$ 81		$ 81		$ 74		$ 74	$ 81
Terms of Share-based payment awards														On May 7, 2010, the Compensation Committee adopted the 2010 Multi-Year LTIP.  This program had a three-year performance period, which commenced on January 1, 2010 and ended on December 31, 2012.  The common shares issuable under this program were based upon the Company's achievement of a certain level of (1) absolute total shareholder return (75% of the award), and (2) relative total shareholder return as compared to the Company's peer group (25% of the award).  The Compensation Committee of the Board of Trustees concluded that the performance criteria for this program had been met and 3,051,862 common shares were issued under this program during the nine months ended September 30, 2013, of which 1,525,931 vested immediately with the remaining shares to vest on December 31, 2013. The share price on the date of grant was $5.95.   NOTE 9 – SHARE BASED PAYMENTS (CONTINUED)On April 15, 2013, the Compensation Committee approved the 2013 Multi-Year LTIP. The common shares issuable under this program are based on the Company's achievement of a certain level of (1) absolute total shareholder return (50% of the award), (2) relative total shareholder return as compared to the Company's peer group (25% of the award), and (3) relative growth in revenue per available room compared to the Company's peer group (25% of the award). This program has a three-year performance period which commenced on January 1, 2013 and ends December 31, 2015. As of September 30, 2013 no common shares have been issued in accordance with the 2013 Plan to the executive officers in settlement of Multi-Year LTIP 2013 awards. The Company accounts for the total shareholder return components of these grants as market based awards where the Company estimates unearned compensation at the grant date fair value which is then amortized into compensation cost over the vesting period of each individual plan.
Shareholders return as percentage of award for achievement level one (in hundredths)												75.00%		75.00%
Shareholders return as percentage of award for achievement level two (in hundredths)												25.00%		25.00%
Shares Issued (in shares)														3,051,862			12,600					2,085,631		744,128		182,308		17,692		1,035,595			52,703											32,417	12,000	12,600	2,000	1,800	1,800	54,422							58,500			28,500		30,000
Shares Vested (in shares)	899,721		899,721		704,962							1,525,931		1,525,931								958,835	702,785	744,128	558,305	182,308	139,522	9,919	4,958				22,480																						43,499		43,499		15,000	28,500	15,000	14,999
Share Price on date of grant (in dollars per share)														$ 5.95										$ 2.800		$ 4.630		$ 5.570		$ 5.470			$ 5.280											$ 4.93						$ 5.78										$ 5.45		$ 5.41
Percentage premium on retainer equity option (in hundredths)																																			25.00%		25.00%
Unvested Share Awards [Abstract]
Vesting Period																								4 years						5 years														1 year																2 years		2 years
Vesting Schedule (in hundredths)																								25.00%						33.30%	[1]													100.00%																50.00%		50.00%

[1] On April 18, 2012, the Company entered into amended and restated employment agreements with the Company’s executive officers.  To induce the executives to agree to the substantial reduction in benefits upon certain terminations following a change of control as described in the agreements, the Company awarded an aggregate of 1,035,595 restricted common shares to the executives pursuant to the 2012 Plan.  None of these restricted common shares will vest prior to the third anniversary of the date of issuance.  Thereafter, 33.3% of each award of restricted common shares will vest on each of the third, fourth and fifth anniversaries of the date of issuance.  Vesting will accelerate upon a change of control or if the relevant executive’s employment with the Company were to terminate for any reason other than for cause (as defined in the agreements).