Restructuring Charges Restructuring Charges (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Expected Cost	$ 3,886
Incurred Cost	372	$ 3,514
Remaining Costs to be Recognized	0
Restructuring Reserve [Roll Forward]
Beginning Balance	1,348
Additions/Adjustments	(10)
Payments	(1,338)
Ending Balance	0	1,348
Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Expected Cost	1,940
Incurred Cost	(22)	1,962
Remaining Costs to be Recognized	0
Restructuring Reserve [Roll Forward]
Beginning Balance	1,348
Additions/Adjustments	(22)
Payments	(1,326)
Ending Balance	0	1,348
Facility Closure Costs [Member]
Restructuring Cost and Reserve [Line Items]
Expected Cost	12
Incurred Cost	12	0
Remaining Costs to be Recognized	0
Restructuring Reserve [Roll Forward]
Beginning Balance	0
Additions/Adjustments	12
Payments	(12)
Ending Balance	0	0
Asset Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Expected Cost	1,552
Incurred Cost	0	1,552
Remaining Costs to be Recognized	0
Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Expected Cost	374
Incurred Cost	374	0
Remaining Costs to be Recognized	0
Other Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Expected Cost	8
Incurred Cost	8	$ 0
Remaining Costs to be Recognized	$ 0