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Description of the Business and Summary of Significant Accounting Policies - Covid 19 (Details) - USD ($)
Dec. 31, 2021
Dec. 31, 2020
Apr. 23, 2020
Dec. 31, 2019
Jul. 31, 2019
Debt Instrument [Line Items]          
Dividends permitted amount per quarter     $ 0.01    
Cash and cash equivalents - unrestricted $ 140,688,000 $ 56,697,000   $ 362,430,000  
$800M Gaylord Rockies Term Loan [Member] | Secured Debt [Member]          
Debt Instrument [Line Items]          
Face amount 800,000,000       $ 800,000,000.0
Revolving Credit Facility [Member] | $700 Million Revolving Credit Facility [Member]          
Debt Instrument [Line Items]          
Remaining borrowing capacity $ 509,800,000        
Sixth Amended And Restated Credit Agreement [Member]          
Debt Instrument [Line Items]          
Dividends permitted amount per quarter     $ 0.01