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Share-Based Compensation Plan (Details Textual) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended
Dec. 31, 2012
Jul. 10, 2012
Jul. 09, 2012
Dec. 31, 2011
Dec. 14, 2009
Jan. 31, 2013
Restricted Stock [Member]
Dec. 31, 2012
Restricted Stock [Member]
Dec. 31, 2011
Restricted Stock [Member]
Dec. 31, 2010
Restricted Stock [Member]
Jan. 31, 2013
Restricted Stock [Member]
Minimum [Member]
Dec. 31, 2012
Restricted Stock [Member]
Minimum [Member]
Jan. 31, 2013
Restricted Stock [Member]
Maximum [Member]
Dec. 31, 2012
Restricted Stock [Member]
Maximum [Member]
Jan. 31, 2013
Performance Shares [Member]
Feb. 08, 2012
Performance Shares [Member]
Dec. 31, 2012
Performance Shares [Member]
company
Feb. 08, 2012
Performance Shares [Member]
Officer Awards [Member]
Feb. 08, 2012
Performance Shares [Member]
Officer Awards [Member]
Maximum [Member]
Feb. 08, 2012
Performance Shares [Member]
Employee Awards [Member]
Feb. 08, 2012
Performance Shares [Member]
Absolute TSR [Member]
Feb. 08, 2012
Performance Shares [Member]
Relative TSR [Member]
Feb. 08, 2012
Performance Shares [Member]
Hotel EBITDA [Member]
Dec. 31, 2012
Long Term Incentive Partnership Units [Member]
Dec. 31, 2011
Long Term Incentive Partnership Units [Member]
Dec. 31, 2010
Long Term Incentive Partnership Units [Member]
Share-Based Compensation Plan (Textual) [Abstract]                                                  
Share-based award vesting period                   3 years 3 years 5 years 5 years     3 years                  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized   2,422,625 1,322,625                                            
Number of common shares available for issuance under the 2009 Equity Incentive Plan 1,124,972                                                
Share-based compensation expense             $ 1.5 $ 1.1 $ 0.5             $ 1.1             $ 1.6 $ 1.6 $ 1.6
Total unrecognized compensation cost             $ 1.6                 $ 2.4             $ 3.1 $ 4.7  
Weighted average remaining vesting period (in years)             1 year 7 months                 2 years             2 years    
Number of Companies in Designated Peer Group                               7                  
Weight of performance component                                       30.00% 30.00% 40.00%      
Share-based equity award grant           59,245 52,545 79,330 70,110         72,118       120,016 12,102            
Risk-free interest rate                             0.34%                    
Dividend yield                             2.20%                    
Expected volatility                             33.00%                    
Granted, weighted average grant date fair value             $ 23.15 $ 22.03 $ 20.98           $ 23.15   $ 8.62   $ 17.23            
Operating Partnership outstanding 381,109     929,099 929,099                                        
Value of LTIP grants per share         $ 8.50                                        
LTIP units, vested 547,990                                                
Long Term Incentive Partnership Units Converted To Common Units 444,535                                                
Long Term Incentive Partnership Units Converted to Cash 103,455