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Other Investments (Details)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Feb. 27, 2020
USD ($)
Mar. 31, 2021
USD ($)
Sep. 30, 2022
USD ($)
hotel
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
hotel
Sep. 30, 2021
USD ($)
Apr. 30, 2022
hotel
Dec. 31, 2021
USD ($)
Schedule of Equity Method Investments [Line Items]                
Equity method investments     $ 113,168   $ 113,168     $ 62,687
Equity in earnings of an investee     $ 2,801 $ 2,158 4,277 $ 50    
Capital contribution funded         $ 45,470 25,443    
Travel Centers of America                
Schedule of Equity Method Investments [Line Items]                
Percentage of total shares outstanding     8.00%   8.00%     8.00%
Sonesta agreements                
Schedule of Equity Method Investments [Line Items]                
Equity method investments     $ 113,168   $ 113,168     $ 62,687
Amount of cost basis exceeding book value $ 8,000              
Amortization period 31 years              
Amortization of basis difference     65 65 195 195    
Decrease in hotel operating expense     621 621 1,863 1,863    
Unamortized balance     35,584   35,584     37,447
Sonesta Int'l Hotels Corp                
Schedule of Equity Method Investments [Line Items]                
Equity in earnings of an investee     $ 2,866 2,158 4,472 50    
Capital contribution funded   $ 25,443     $ 45,470      
Number of properties owned | hotel     4   4   4  
Travel Centers of America                
Schedule of Equity Method Investments [Line Items]                
Carrying value of investment     $ 63,896   $ 63,896     61,159
Unrealized gain on equity securities     23,056 $ 24,348 2,737 $ 20,367    
Travel Centers of America | Quoted Prices in Active Markets for Identical Assets (Level 1)                
Schedule of Equity Method Investments [Line Items]                
Carrying value of investment     63,896   63,896      
Historical cost of securities     $ 24,418   $ 24,418     $ 24,418
Sonesta Int'l Hotels Corp                
Schedule of Equity Method Investments [Line Items]                
Noncontrolling interest, ownership percentage     34.00%   34.00%