Restructuring Restructuring Related Balance Sheet Activity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2015			$ 62,859
Costs charged to (released from) expense	$ (5)	$ 58	(9,686)	$ (2,211)
Cash payments			(12,025)
Non-cash items			(1,395)
Effect of change in exchange rates			(4,804)
Ending balance, September 30, 2015	34,949		34,949
Accrued Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2015			59,333
Costs charged to (released from) expense			(13,465)
Cash payments			(9,450)
Non-cash items			0
Effect of change in exchange rates			(4,563)
Ending balance, September 30, 2015	31,855		31,855
Asset Impairment and Net (Gain) Loss on Sale or Disposal [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2015			0
Costs charged to (released from) expense			1,395
Cash payments			0
Non-cash items			(1,395)
Effect of change in exchange rates			0
Ending balance, September 30, 2015	0		0
Other Accrued Costs [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2015			3,526
Costs charged to (released from) expense			2,384
Cash payments			(2,575)
Non-cash items			0
Effect of change in exchange rates			(241)
Ending balance, September 30, 2015	$ 3,094		$ 3,094