Derivative Financial Instruments - Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Derivative liability	$ (31,249)	$ (50,910)
Derivatives Designated As Hedging Instruments
Derivatives, Fair Value [Line Items]
Derivative liability	(31,249)	(50,910)
Interest rate swap and cap contracts | Derivatives Designated As Hedging Instruments | Prepaid expenses, deferred costs, and other noncurrent assets
Derivatives, Fair Value [Line Items]
Derivative asset	3,897	0
Interest rate swap and cap contracts | Derivatives Designated As Hedging Instruments | Current portion of other long-term liabilities
Derivatives, Fair Value [Line Items]
Derivative liability	(22,211)	(23,916)
Interest rate swap and cap contracts | Derivatives Designated As Hedging Instruments | Other long-term liabilities
Derivatives, Fair Value [Line Items]
Derivative liability	$ (12,935)	$ (26,994)