Restructuring Costs (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 1,431	$ 1,361	$ 16,383
Facility Exit [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning	321	1,485	3,670
Restructuring expenses	22	437	4,524
Utilization	(343)	(1,601)	(6,709)
Restructuring Reserve, Ending	0	321	1,485
Total COGS and SGA
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning	3,777	12,426	21,861
Restructuring expenses	1,431	1,361	16,974
Utilization	(2,600)	(10,010)	(26,409)
Restructuring Reserve, Ending	1,841	3,777	12,426
Total COGS and SGA | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning	3,456	10,941	18,191
Restructuring expenses	642	924	11,860
Utilization	(2,257)	(8,409)	(19,110)
Restructuring Reserve, Ending	1,841	3,456	10,941
Total COGS and SGA | Asset write-down [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning	0	0	0
Restructuring expenses	0	0	590
Utilization	0	0	(590)
Restructuring Reserve, Ending	0	$ 0	$ 0
Total COGS and SGA | Restructuring Plan [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 664