Restructuring Restructuring Reserve Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 2,162	$ 2,162	$ 2,428	$ 7,241
Restructuring Charges	564	1,491
Payments for Restructuring	(830)	(6,820)
Restructuring Reserve, Accrual Adjustment	0	250
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	999	999	999	6,390
Restructuring Charges	0	0
Payments for Restructuring	0	(4,343)
Restructuring Reserve, Accrual Adjustment	0	(1,048)
Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	998	998	1,333	682
Restructuring Charges	0	35
Payments for Restructuring	(335)	(1,017)
Restructuring Reserve, Accrual Adjustment	0	1,298
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	165	165	$ 96	$ 169
Restructuring Charges	564	1,456
Payments for Restructuring	(495)	(1,460)
Restructuring Reserve, Accrual Adjustment	$ 0	$ 0