Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net loss	$ (27,300)	$ (19,769)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	155,889	100,336
Loss (gain) on disposal or impairment of long-lived assets, net	(2,125)	43,801
Earnings from equity method investments	(41,493)	(52,211)
Distributions from equity method investments	41,489	51,606
Amortization of debt issuance costs and discount	5,628	4,449
Loss on early extinguishment of debt	0	19,930
Deferred tax expense (benefit)	1,793	(37,824)
Non-cash equity compensation	8,332	8,517
Provision for uncollectible accounts receivable, net of recoveries	(97)	761
Foreign currency transaction loss (gain)	4,625	(1,758)
Pension Expense (Reversal of Expense), Noncash	0	(3,008)
Inventory valuation adjustment	0	455
Changes in operating assets and liabilities (Note 14)	(10,326)	(22,868)
Net cash provided by operating activities	136,415	92,417
Capital expenditures	(303,391)	(346,204)
Proceeds from sale of long-lived assets	246	16,638
Contributions to equity method investments	(7,466)	(18,808)
Payments to Acquire Businesses, Net of Cash Acquired	0	(293,039)
Proceeds from business divestitures	146,735	0
Distributions in excess of equity in earnings of affiliates	15,730	19,296
Net cash used in investing activities	(148,146)	(622,117)
Debt issuance costs	(4,720)	(10,839)
Borrowings on credit facilities and issuance of senior notes, net of discount	1,139,500	1,353,377
Principal payments on credit facilities and other obligations	(1,376,649)	(711,941)
Debt extinguishment costs	0	(16,293)
Proceeds from preferred stock issuance, net of offering costs	342,299	0
Repurchase of common stock for payment of statutory taxes due on equity-based compensation	(699)	(1,361)
Dividends paid	(111,445)	(94,714)
Proceeds from issuance of common stock under employee stock purchase plan	228	796
Net cash provided by (used in) financing activities	(11,486)	519,025
Effect of exchange rate changes on cash and cash equivalents	(494)	4,472
Change in cash and cash equivalents	(23,711)	(6,203)
Cash and cash equivalents at beginning of period	93,699	74,216
Cash and cash equivalents at end of period	$ 69,988	$ 68,013