Supplemental Balance Sheet, Income Statement and Cash Flow Information (Details 4) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Supplemental Balance Sheet, Income Statement and Cash Flow Information
Losses (gains) on sales, disposals and involuntary conversions of long-lived assets	$ (147,488)	$ (11,155)	$ 6,430
Acquisition-related costs		151	7,021
Litigation expenses	5,382	11,301	6,356
Foreign currency transaction losses (gains)	4,787	5,499	18,100
Losses (gains) on derivative instruments	(1,281)	(2,159)	119
Losses (gains) on debt extinguishment		58	7,042
Other losses (gains)	2,090	819	2,170
Losses (gains) on sales and retirements of long-lived assets and other expense (income), net	$ (136,510)	$ 4,514	$ 47,238