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Equity (Narrative) (Details)
 12 Months Ended 37 Months Ended
Dec. 31, 2020
USD ($)
hotel
$ / shares
shares
Dec. 31, 2019
USD ($)
hotel
$ / shares
shares
Dec. 31, 2018
shares
Dec. 31, 2020
USD ($)
hotel
$ / shares
shares
Dec. 11, 2017
USD ($)
Dec. 05, 2017
$ / shares
Oct. 27, 2014
USD ($)
Class of Stock [Line Items]              
Common stock, par value (in dollars per share) | $ / shares $ 0.01 $ 0.01   $ 0.01      
Number of hotel properties with JV interests | hotel 2 2   2      
Noncontrolling interest in consolidated entities | $ $ (15,088,000) $ (6,013,000)   $ (15,088,000)      
Co-venturer              
Class of Stock [Line Items]              
Noncontrolling interest in consolidated entities | $ $ (15,100,000) $ (6,000,000.0)   $ (15,100,000)      
Common Stock              
Class of Stock [Line Items]              
Shares of stock repurchased during period (in shares) 47,000 45,000 31,000        
Common Stock | At-The-Market Equity Distribution              
Class of Stock [Line Items]              
Shares sold (in shares)       4,700,000      
Stock Repurchase Program              
Class of Stock [Line Items]              
Share repurchase program authorized amount | $ $ 50,000,000     $ 50,000,000 $ 50,000,000   $ 100,000,000
Common stock, par value (in dollars per share) | $ / shares           $ 0.01  
Shares of stock repurchased during period (in shares) 0 0 0        
Aggregate offering price | $ $ 14,500,000            
Stock Repurchase Program | Common Stock              
Class of Stock [Line Items]              
Shares of stock repurchased during period (in shares) 47,000 45,000 31,000        
Series D Preferred Stock              
Class of Stock [Line Items]              
Preferred stock dividend rate 8.25% 8.25%          
Preferred stock, shares issued (in shares) 1,600,000 1,600,000   1,600,000      
Redemption price (in dollars per share) | $ / shares $ 25.00     $ 25.00      
Preferred stock conversion rate 5.12295            
Annual preferred stock dividend (in dollars per share) | $ / shares $ 2.0625