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Fair Value Measurements (Details) - USD ($)
$ in Thousands
Nov. 30, 2019
Mar. 15, 2019
Mar. 02, 2019
Other Financial Instruments      
Held to maturity investments $ 7,039   $ 7,191
Interest rate cap      
Other Financial Instruments      
Derivative notional amount   $ 650,000  
Interest rate cap | LIBOR      
Other Financial Instruments      
Interest rate cap (as a percent)   2.75%  
Level 1      
Other Financial Instruments      
Carrying value of total long-term indebtedness 3,566,261   3,454,585
Estimated fair value of total long-term indebtedness $ 3,204,496   $ 3,120,335