Restructuring Restructuring Related Balance Sheet Activity (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2014	$ 36,341
Costs incurred and charged to expense	5,524	1,013
Cash payments	(3,763)
Non-cash items	0
Effect of change in exchange rates	(115)
Ending balance, March 31, 2014	37,987
Accrued Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2014	32,709
Costs incurred and charged to expense	4,195
Cash payments	(3,675)
Non-cash items	0
Effect of change in exchange rates	(124)
Ending balance, March 31, 2014	33,105
Asset Impairment and Net (Gain) Loss on Sale or Disposal [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2014	0
Costs incurred and charged to expense	0
Cash payments	0
Non-cash items	0
Effect of change in exchange rates	0
Ending balance, March 31, 2014	0
Other Accrued Costs [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, January 1, 2014	3,632
Costs incurred and charged to expense	1,329
Cash payments	(88)
Non-cash items	0
Effect of change in exchange rates	9
Ending balance, March 31, 2014	$ 4,882