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Subsequent Events (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Apr. 30, 2020
Dec. 31, 2019
Sixth Amended And Restated Credit Agreement [Member]      
Subsequent Events      
Minimum liquidity maintenance   $ 100.0  
Revolving Credit Facility [Member] | $700 Million Revolving Credit Facility [Member]      
Subsequent Events      
Remaining borrowing capacity $ 299.1    
Line of Credit [Member] | Revolving Credit Facility [Member] | Sixth Amended And Restated Credit Agreement [Member] | Subsequent event | $700 Million Revolving Credit Facility [Member]      
Subsequent Events      
Remaining borrowing capacity   $ 300.0  
Secured Debt [Member] | $800M Term Loan (Gaylord Rockies JV) [Member]      
Subsequent Events      
Face amount $ 800.0   $ 800.0
Debt instrument, maturity date Jul. 02, 2023