Business Segments and Geographic Information - Schedule of Pre-Tax Income Reconciliation of Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Pre-Tax Income Reconciliation of Segments
Operating income from segments	$ 109,056	$ 128,446	$ 219,424	$ 249,647
Unallocated amounts:
General and Administrative Expenses	(45,543)	(47,271)	(99,325)	(93,695)
Net interest expense	(25,362)	(30,887)	(54,104)	(62,771)
(Loss) gain on extinguishment of debt	0	(5,741)	1,563	(5,741)
Income before income taxes and equity in earnings of affiliates	$ 38,151	$ 44,547	$ 67,558	$ 87,440