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Reportable Segments (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Reconciliation of net income (loss) to gross margin
Net income (loss)	$ 45,261	$ 119,346	$ 128,556	$ (40,265)
Selling, general and administrative	93,723	85,536	269,819	274,509
Depreciation and amortization	81,305	85,248	244,702	259,268
Long-lived asset impairment	6,925	3,204	27,062	135,869
Restructuring charges		1,515		5,828
Interest expense	28,882	31,723	87,006	106,682
Equity in income of non-consolidated affiliates	(4,778)	(4,793)	(14,165)	(46,860)
Other (income) expense, net	(4,447)	(1,450)	(21,495)	1,207
Provision for (benefit from) income taxes	15,421	1,267	54,421	(34,578)
Income from discontinued operations, net of tax	(17,511)	(110,916)	(49,186)	(66,863)
Gross margin	$ 244,781	$ 210,680	$ 726,720	$ 594,797

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity, excluding depreciation and amortization expense. Gross margin is a non-GAAP financial measure.

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