Restructuring Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended							6 Months Ended		9 Months Ended		12 Months Ended			15 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	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	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Inventory Write-down												$ 1,100
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
Restructuring Reserve, Current				$ 48,500								25,200	48,500		$ 48,500
Restructuring Reserve, Noncurrent				13,500								4,400	13,500		13,500
Asset Impairment and Net (Gain) Loss on Sale or Disposal [Member]
Restructuring Cost and Reserve [Line Items]
Costs incurred (released) and charged to expense												976
2013 Project [Member]
Restructuring Cost and Reserve [Line Items]
Costs incurred (released) and charged to expense															$ 26,200
2014 Project [Member]
Restructuring Cost and Reserve [Line Items]
Change in Total Expected Restructuring Costs												15,100
Costs incurred (released) and charged to expense				$ 54,400								(7,263)	54,445
2014 Project [Member] | Asset Impairment and Net (Gain) Loss on Sale or Disposal [Member]
Restructuring Cost and Reserve [Line Items]
Costs incurred (released) and charged to expense												$ 976	$ 7,904