Restructuring and Other Charges (Details) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011
Restructuring reserves
Restructuring Reserves, Beginning Balance	$ 4,047
Additions	780
Cash Payments	1,575
Foreign Translation Adjustments	34
Restructuring Reserves, Ending Balance	3,286
Employee severance and benefits [Member]
Restructuring reserves
Restructuring Reserves, Beginning Balance	234
Additions	405
Cash Payments	316
Restructuring Reserves, Ending Balance	323
Contract termination costs [Member]
Restructuring reserves
Restructuring Reserves, Beginning Balance	3,813
Additions	375
Cash Payments	1,259
Foreign Translation Adjustments	34
Restructuring Reserves, Ending Balance	$ 2,963