CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income (loss)	$ (695,145)	$ (209,474)
Adjustments to net income (loss):
Depreciation and amortization	657,541	741,919
Deferred income tax expense (benefit)	(168,413)	(100,751)
Impairments and other charges	45,809	62,838
Losses (gains) on debt buyback	(6,707)
Losses (gains) on long-lived assets, net	13,608	13,202
Impairments on equity method holdings	216,242	180,591
Share-based compensation	24,070	39,024
Foreign currency transaction losses (gains), net	5,916	7,443
Gain on merger transaction, net		(47,074)
Gains on acquisitions		(2,308)
Equity in (earnings) losses of unconsolidated affiliates, net of dividends	221,918	38,909
Other	6,957	7,259
Changes in operating assets and liabilities, net of effects from acquisitions:
Accounts receivable	255,455	449,847
Inventory	14,660	9,483
Other current assets	30,192	146,123
Other long-term assets	(377)	263,582
Trade accounts payable and accrued liabilities	(187,771)	(699,765)
Income taxes payable	(22,496)	(40,756)
Other long-term liabilities	(6,691)	(255,081)
Net cash provided by operating activities	404,768	605,011
Cash flows from investing activities:
Purchases of investments	(24)	(8)
Sales and maturities of investments	643	859
Cash paid for acquisition of businesses, net		(57,909)
Investment in unconsolidated affiliates		(445)
Capital expenditures	(284,950)	(744,047)
Proceeds from sales of assets and insurance claims	26,597	30,164
Proceeds from merger transaction		650,050
Other	(19)	1,700
Net cash (used for) provided by investing activities	(257,753)	(119,636)
Cash flows from financing activities:
Increase (decrease) in cash overdrafts	5	363
Proceeds from revolving credit facilities	560,000
Reduction in revolving credit facilities	(260,000)	(450,000)
Proceeds from (payments for) issuance of common shares	562	1,198
Repurchase of common shares	(1,687)	(44,978)
Reduction in long term debt	(492,625)
Dividends to shareholders	(33,927)	(52,489)
Proceeds from (payment for) commercial paper, net	15,000	(162,544)
Proceeds from term Loan		300,000
Payments on term loan		(300,000)
Proceeds from (payments for) short-term borrowings	(6,388)	2,792
Other	(4,313)	(7,534)
Net cash (used for) provided by financing activities	(223,373)	(713,192)
Effect of exchange rate changes on cash and cash equivalents	(1,129)	(21,966)
Net increase (decrease) in cash and cash equivalents	(77,487)	(249,783)
Cash and cash equivalents, beginning of period	254,530	501,149
Cash and cash equivalents, end of period	$ 177,043	$ 251,366