Restructuring Related Balance Sheet Activity (Details) - USD ($) $ in Thousands	3 Months Ended						6 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve - Beginning Balance			$ 61,929				$ 61,929		$ 61,929		$ 61,929
Costs incurred (released) and charged to expense	$ 587	$ (4,234)	(5,181)	$ 57	$ (8,657)	$ 6,383	(9,415)	$ (2,274)	(8,828)	$ (2,217)	(7,263)	$ 49,482	$ 36,347
Cash payments											(18,764)
Non-cash items											976
Effect of change in exchange rates											(5,345)
Restructuring Reserve - Ending Balance											29,581	61,929
Employee severance costs
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve - Beginning Balance			58,403				58,403		58,403		58,403
Costs incurred (released) and charged to expense											(12,151)
Cash payments											(14,570)
Non-cash items											0
Effect of change in exchange rates											(5,149)
Restructuring Reserve - Ending Balance											26,533	58,403
Asset Impairment and Net (Gain) Loss on Sale or Disposal [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve - Beginning Balance			0				0		0		0
Costs incurred (released) and charged to expense											976
Cash payments											0
Non-cash items											976
Effect of change in exchange rates											0
Restructuring Reserve - Ending Balance											0	0
Other restructuring costs
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve - Beginning Balance			$ 3,526				$ 3,526		$ 3,526		3,526
Costs incurred (released) and charged to expense											3,912
Cash payments											(4,194)
Non-cash items											0
Effect of change in exchange rates											(196)
Restructuring Reserve - Ending Balance											$ 3,048	$ 3,526