Restructuring Restructuring Related Balance Sheet Activity (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2013			$ 17,714
Costs incurred and charged to expense	3,385	7,720	4,398	8,509
Cash payments			(3,988)
Non-cash items			(27)
Effect of change in exchange rates			(475)
Ending balance, June 30, 2013	17,622		17,622
Accrued Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2013			14,498
Costs incurred and charged to expense			2,654
Cash payments			(3,155)
Non-cash items			0
Effect of change in exchange rates			(447)
Ending balance, June 30, 2013	13,550		13,550
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			27
Cash payments			0
Non-cash items			(27)
Effect of change in exchange rates			0
Ending balance, June 30, 2013	0		0
Other Accrued Costs [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2013			3,216
Costs incurred and charged to expense			1,717
Cash payments			(833)
Non-cash items			0
Effect of change in exchange rates			(28)
Ending balance, June 30, 2013	$ 4,072		$ 4,072