Debt - Summary of Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt, net of current portion and deferred financing charges	$ 1,915,452	$ 1,628,611
Total debt outstanding	1,956,850	1,665,000
Deferred financing charges	(26,670)	(25,205)
Term loan facility, discount	(2,128)	(2,184)
Short-term debt, including current portion of long-term debt	$ (12,600)	$ (9,000)
Senior unsecured notes
Debt Instrument [Line Items]
Interest Rate	4.50%	4.50%
Total debt outstanding	$ 700,000	$ 700,000
Term loan facility
Debt Instrument [Line Items]
Interest Rate	4.36%	5.049%
Total debt outstanding	$ 1,256,850	$ 900,000
Revolving credit facility
Debt Instrument [Line Items]
Interest Rate	0.00%	5.049%
Total debt outstanding	$ 0	$ 65,000