CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net income (loss)	$ 50,492	$ 99,218
Adjustments to net income (loss):
Depreciation and amortization	282,349	273,423
Deferred income tax expense (benefit)	451	(5,371)
Losses (gains) on long-lived assets, net	3,517
Losses (gains) on investments, net	(7)	(78,655)
Share-based compensation	10,685	32,853
Foreign currency transaction losses (gains), net	(3,293)	4,316
Equity in (earnings) losses of unconsolidated affiliates, net of dividends	2,445	(2,896)
Other	910	12,827
Changes in operating assets and liabilities, net of effects from acquisitions:
Accounts receivable	(57,004)	(61,399)
Inventory	14,480	5,500
Other current assets	4,742	(33,829)
Other long-term assets	1,275	16,233
Trade accounts payable and accrued liabilities	(28,471)	(63,130)
Income taxes payable	(26,036)	11,327
Other long-term liabilities	188,028	(31,123)
Net cash provided by operating activities	444,563	179,295
Cash flows from investing activities:
Purchases of investments	(286)
Sales and maturities of investments	733	142,336
Cash paid for acquisition of businesses, net	(10,200)	(37,516)
Investment in unconsolidated affiliates	(1,255)	(12)
Capital expenditures	(396,465)	(235,539)
Proceeds from sales of assets and insurance claims	21,605	6,605
Net cash used for investing activities	(385,868)	(124,126)
Cash flows from financing activities:
Increase (decrease) in cash overdrafts	(1,822)	(1,975)
Proceeds from (payments for) issuance of common shares	4,931	1,027
Dividends to shareholders	(11,893)
Proceeds from (payment for) commercial paper, net	(39,594)	(12,891)
Proceeds from revolving credit facilities	15,000
Reduction in revolving credit facilities	(67,500)
Other	(11,585)	1,395
Net cash (used for) provided by financing activities	(112,463)	(12,444)
Effect of exchange rate changes on cash and cash equivalents	(9,266)	(2,759)
Net increase (decrease) in cash and cash equivalents	(63,034)	39,966
Cash and cash equivalents, beginning of period	389,915	524,922
Cash and cash equivalents, end of period	$ 326,881	$ 564,888