Restructuring Restructuring Related Balance Sheet Activity (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2013	$ 17,714
Costs incurred and charged to expense	1,013	789
Cash payments	(2,622)
Non-cash items	(26)
Effect of change in exchange rates	(480)
Ending balance, March 31, 2013	15,599
Accrued Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2013	14,498
Costs incurred and charged to expense	84
Cash payments	(2,190)
Non-cash items	0
Effect of change in exchange rates	(472)
Ending balance, March 31, 2013	11,920
Asset Impairment and Net (Gain) Loss on Sale or Disposal [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2013	0
Costs incurred and charged to expense	26
Cash payments	0
Non-cash items	(26)
Effect of change in exchange rates	0
Ending balance, March 31, 2013	0
Other Accrued Costs [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2013	3,216
Costs incurred and charged to expense	903
Cash payments	(432)
Non-cash items	0
Effect of change in exchange rates	(8)
Ending balance, March 31, 2013	$ 3,679