Segment Information - Reconciliation to Income from Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Reconciliation of Adjusted EBITDA to income from continuing operations
Adjusted EBITDA	$ 375,701	$ 362,330	$ 1,051,149	$ 1,065,460
Provision (Benefit) for Income Taxes	21,928	14,023	43,127	39,957
Other (Income) Expense, Net	(13,415)	325	(13,397)	1,420
Interest Expense, Net	106,677	103,938	314,427	303,836
(Gain) Loss on disposal/write-down of property, plant and equipment, net	(9,284)	(388)	(17,087)	(2,064)
Depreciation and amortization	157,561	157,797	484,375	474,595
Income (Loss) from Continuing Operations	108,284	77,349	231,107	209,001
Recall Transaction and IODC Transaction
Reconciliation of Adjusted EBITDA to income from continuing operations
Significant Acquisition Costs	$ 3,950	$ 9,286	$ 8,597	$ 38,715