CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net income (loss)	$ (585,119)	$ 86,680
Adjustments to net income (loss):
Depreciation and amortization	436,164	501,085
Deferred income tax expense (benefit)	(124,721)	5,039
Impairments and other charges	26,246
Losses (gains) on debt buyback	(6,027)
Losses (gains) on long-lived assets, net	7,735	2,725
Impairments on equity method holdings	216,242
Losses (gains) on merger and acquisitions		(54,882)
Share-based compensation	16,596	30,102
Foreign currency transaction losses (gains), net	7,018	(548)
Equity in (earnings) losses of unconsolidated affiliates, net of dividends	221,920	3,809
Other	6,174	4,815
Changes in operating assets and liabilities, net of effects from acquisitions:
Accounts receivable	255,945	449,062
Inventory	5,222	7,763
Other current assets	(6,609)	148,563
Other long-term assets	33,234	255,845
Trade accounts payable and accrued liabilities	(103,864)	(633,640)
Income taxes payable	(27,387)	(29,212)
Other long-term liabilities	(42,097)	(259,802)
Net cash provided by operating activities	336,672	517,404
Cash flows from investing activities:
Purchases of investments		8
Sales and maturities of investments	367	745
Cash paid for acquisition of businesses, net		(57,909)
Investment in unconsolidated affiliates		(445)
Capital expenditures	(193,234)	(566,672)
Proceeds from sales of assets and insurance claims	13,834	24,790
Proceeds from merger transaction		660,050
Other	38	1,809
Net cash (used for) provided by investing activities	(178,995)	62,360
Cash flows from financing activities:
Increase (decrease) in cash overdrafts	294	310
Proceeds from revolving credit facilities	260,000
Reduction in revolving credit facilities	(260,000)	(450,000)
Proceeds from (payments for) issuance of common shares	39	1,198
Repurchase of common shares	(1,687)
Reduction in long term debt	(148,045)
Dividends to shareholders	(16,922)	(34,980)
Proceeds from (payment for) commercial paper, net	(1,500)	(208,467)
Proceeds from term Loan		300,000
Payments on term loan		(300,000)
Proceeds from short-term borrowings	(6,333)	60,169
Other	(4,280)	(7,426)
Net cash (used for) provided by financing activities	(178,434)	(639,196)
Effect of exchange rate changes on cash and cash equivalents	(21)	(5,042)
Net increase (decrease) in cash and cash equivalents	(20,778)	(64,474)
Cash and cash equivalents, beginning of period	254,530	501,149
Cash and cash equivalents, end of period	$ 233,752	$ 436,675