Derivative Financial Instruments - Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Derivative liability	$ (62,954)	$ (14,650)
Derivatives Designated As Hedging Instruments
Derivatives, Fair Value [Line Items]
Derivative liability	(62,954)	(6,782)
Interest rate swap and cap contracts | Derivatives Designated As Hedging Instruments | Prepaid expenses, deferred costs, and other current assets
Derivatives, Fair Value [Line Items]
Derivative asset	0	1,872
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	0	8,766
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	(25,196)	(7,697)
Interest rate swap and cap contracts | Derivatives Designated As Hedging Instruments | Other long-term liabilities
Derivatives, Fair Value [Line Items]
Derivative liability	(37,758)	(9,723)
Foreign currency forward contracts | Not Designated as Hedging Instrument | Current portion of other long-term liabilities
Derivatives, Fair Value [Line Items]
Derivative liability	$ 0	$ (7,868)