Related Party Transactions (Narrative) (Details)
 3 Months Ended 10 Months Ended 12 Months Ended
Dec. 31, 2020
USD ($)
hotel
Aug. 25, 2020
USD ($)
Mar. 20, 2020
USD ($)
Sep. 25, 2019
USD ($)
Jan. 15, 2019
USD ($)
Aug. 08, 2018
USD ($)
Sep. 30, 2021
USD ($)
Nov. 05, 2019
USD ($)
Dec. 31, 2021
USD ($)
hotel
Mar. 20, 2021
USD ($)
Dec. 31, 2020
USD ($)
hotel
Dec. 31, 2019
USD ($)
hotel
Jul. 01, 2019
USD ($)
Jun. 26, 2019
USD ($)
Dec. 31, 2015
USD ($)
Related Party Transaction [Line Items]                              
Base fee, net asset fee adjustment (as a percent)                 0.70%            
Minimum base fee (as a percent)                 90.00%            
Term of advisory agreement (in years)                 3 years            
Indebtedness, gross $ 1,128,724,000               $ 1,180,750,000   $ 1,128,724,000        
Aggregate non-listed preferred equity offerings 400,000,000     $ 400,000,000                      
Capital contributions $ 3,750,000                            
Advisory agreement, percent of total construction costs           6.50%                  
Advisory agreement, construction management fees (as a percent)           10.00%                  
Advisory agreement, interior design fees (as a percent)           6.00%                  
Advisory agreement, FF&E purchasing fees (as a percent)           8.00%                  
Advisory Agreement, FF&E purchasing fees, freight and tax threshold           $ 2,000,000                  
Advisory Agreement, FF&E purchasing fees, with freight and tax threshold (as a percent)           6.00%                  
Number of hotel properties | hotel 13               14   13 13      
Due from related parties, net $ 991,000               $ 1,770,000   $ 991,000        
Loss on litigation settlement                 917,000   0 $ 0      
Mortgage Loan Two [Member] | Mortgages                              
Related Party Transaction [Line Items]                              
Indebtedness, gross $ 435,000,000 $ 435,000,000             435,000,000   435,000,000        
Ashford Inc.                              
Related Party Transaction [Line Items]                              
Allocation percentage 50.00%     25.00%                      
Ashford Inc. | Ashford Trust                              
Related Party Transaction [Line Items]                              
Allocation percentage 0.00%     75.00%                      
Ashford Inc. | Ashford Inc.                              
Related Party Transaction [Line Items]                              
Allocation percentage 50.00%                            
Purchase of FF&E | Affiliated Entity                              
Related Party Transaction [Line Items]                              
Related party transaction amount             $ 144,000                
Design and construction fees                              
Related Party Transaction [Line Items]                              
Percentage of project costs           4.00%                  
Lismore Capital | Subsidiaries                              
Related Party Transaction [Line Items]                              
Related party transaction amount     $ 1,400,000             $ 4,100,000          
Advisory services, expense included in write-off of loan costs and exit fees                 341,000   3,100,000        
Lismore Capital | Periodic installments | Subsidiaries                              
Related Party Transaction [Line Items]                              
Related party transaction amount     1,400,000                        
Total     683,000                        
Payment amount to be offset against future fees     681,000                        
Lismore Capital | Success fees | Subsidiaries                              
Related Party Transaction [Line Items]                              
Related party transaction amount     $ 1,400,000                        
Lismore Capital | Success Fees Waived                              
Related Party Transaction [Line Items]                              
Related party transaction amount   $ 1,600,000                          
Lismore Capital | Debt placement fee | Subsidiaries                              
Related Party Transaction [Line Items]                              
Total                 150,000            
Ashford Inc.                              
Related Party Transaction [Line Items]                              
Amount funded                 3,500,000            
Key money consideration                             $ 2,000,000
Purchased FF&E                     200,000        
Ashford Inc. | Other Assets                              
Related Party Transaction [Line Items]                              
Amount funded                 338,000            
Ashford LLC                              
Related Party Transaction [Line Items]                              
ERFP agreement, percent of property acquisition price         10.00%                    
ERFP agreement, funding term (in years)         2 years                    
ERFP agreement, initial term (in years)         2 years                    
ERFP agreement, renewal term (in years)         1 year                    
ERFP agreement, notice term (in days)         60 days                    
ERFP Agreement, amount due                 10,300,000            
ERFP Agreement, amount sold                         $ 8,900,000 $ 1,400,000  
Gain on sale of hotel FF&E                       9,000      
Ashford LLC | Hotel FF&E                              
Related Party Transaction [Line Items]                              
Gain on sale of hotel FF&E                 197,000            
Proceeds from sale of hotel FF&E                 $ 1,600,000            
Ashford LLC | Affiliated Entity                              
Related Party Transaction [Line Items]                              
Gain on sale of hotel FF&E                       23,000      
Remington Hotels                              
Related Party Transaction [Line Items]                              
Total                       $ 2,035,000      
Number of hotel properties managed by related party | hotel                 4            
Due from related parties, net $ 626,000               $ 677,000   626,000        
Remington Hotels | Affiliated Entity                              
Related Party Transaction [Line Items]                              
Due from related parties, net $ 365,000               365,000   $ 365,000        
Ashford Trust | Legal settlement | Affiliated Entity                              
Related Party Transaction [Line Items]                              
Due from related parties, net                 728,000            
Loss on litigation settlement                 728,000            
Maximum | Ashford Inc.                              
Related Party Transaction [Line Items]                              
Funding amount       $ 15,000,000                      
Maximum | Ashford LLC                              
Related Party Transaction [Line Items]                              
ERFP agreement, commitment         $ 50,000,000                    
ERFP agreement, commitment with increase         $ 100,000,000                    
Minimum | Management fees                              
Related Party Transaction [Line Items]                              
Monthly property management fee                 $ 15,000            
Property management fee, percent               3.00% 3.00%            
Minimum | Remington Hotels | Management fees                              
Related Party Transaction [Line Items]                              
Monthly property management fee               $ 14,000 $ 15,000            
Property management fee, percent                 3.00%