Supplemental Balance Sheet Income Statement and Cash Flow Information (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Losses (gains) on sales and retirements of long-lived assets and other expense (income), net
Losses (gains) on sales, retirements and involuntary conversions of long-lived assets	$ (11,155)	$ 6,430	$ 5,927
Acquisition-related costs	151	7,021
Litigation expenses	11,301	6,356	11,474
Foreign currency transaction losses (gains)	5,499	18,100	7,993
Losses (gains) on derivative instruments	(2,159)	119	(1,399)
Losses (gains) on debt retirement, net	58	7,042	(11,197)
Other losses (gains)	819	2,170	(816)
Losses (gains) on sales and retirements of long-lived assets and other expense (income), net	$ 4,514	$ 47,238	$ 11,982