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Restructuring Charges (Details) - 2015 Plan [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Company estimate of the aggregate restructuring cost		$ 3,000
Restructuring charges		3,576
noncashrestructuringexpectedcost		$ 1,000
Restructuring and Related Cost, Positions Eliminated [Abstract]
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent		8.00%
Restructuring Reserve [Roll Forward]
Beginning balance	$ (1,228)	$ 0
Restructuring charges		3,576
Payments for Restructuring	(1,213)	(1,765)
Restructuring Reserve, Settled without Cash		(583)
Ending balance	(15)	(1,228)
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		2,993
Restructuring Reserve [Roll Forward]
Beginning balance	(1,228)	0
Restructuring charges		2,993
Payments for Restructuring	(1,213)	(1,765)
Restructuring Reserve, Settled without Cash		0
Ending balance	(15)	(1,228)
Restructuring Charges [Member]
Restructuring Reserve [Roll Forward]
Beginning balance	0	0
Restructuring Costs and Asset Impairment Charges		583
Payments for Restructuring	0	0
Restructuring Reserve, Settled without Cash		(583)
Ending balance	$ 0	0
MID Segment
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,400
Restructuring Reserve [Roll Forward]
Restructuring charges		1,400
Other
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,200
Restructuring Reserve [Roll Forward]
Restructuring charges		1,200
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring charges		900
Restructuring Reserve [Roll Forward]
Restructuring charges		900
RSD Segment
Restructuring Cost and Reserve [Line Items]
Restructuring charges		100
Restructuring Reserve [Roll Forward]
Restructuring charges		$ 100

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Amount expected to be recognized in earnings for the specified restructuring cost.

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