Debt - Summary of Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total debt outstanding	$ 1,953,700	$ 1,665,000
Deferred financing charges	(25,824)	(25,205)
Term loan facility, discount	(2,062)	(2,184)
Short-term debt, including current portion of long-term debt	(12,600)	(9,000)
Long-term debt, net of current portion and deferred financing charges	$ 1,913,214	$ 1,628,611
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	3.178%	5.049%
Total debt outstanding	$ 1,253,700	$ 900,000
Revolving Credit Facility
Debt Instrument [Line Items]
Interest Rate	0.00%	5.049%
Total debt outstanding	$ 0	$ 65,000