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Fair Value Measurements (Details) - USD ($)
$ in Thousands
Feb. 29, 2020
Mar. 15, 2019
Mar. 02, 2019
Other Financial Instruments      
Held to maturity investments $ 7,022   $ 7,191
Interest rate cap      
Other Financial Instruments      
Derivative notional amount $ 650,000 $ 650,000  
Interest rate cap (as a percent) 2.75%    
Interest rate cap | LIBOR      
Other Financial Instruments      
Interest rate cap (as a percent)   2.75%  
Nonrecurring basis | Level 1      
Other Financial Instruments      
Carrying value of total long-term indebtedness $ 3,077,268   3,454,585
Estimated fair value of total long-term indebtedness $ 3,021,385   $ 3,120,335