Stockholders' Equity AOCI Reclassification (Details) - USD ($) $ in Thousands		3 Months Ended				9 Months Ended
		Sep. 30, 2016		Sep. 30, 2015		Sep. 30, 2016		Sep. 30, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Pension Curtailment, Recognized Prior Service Cost						$ 0		$ 813
Prior service cost	[1]	$ (50)		$ 4		150		997
Actuarial loss	[1]	(406)		(674)		(1,218)		(2,532)
Total before tax		(456)		(670)		(1,368)		(3,529)
Tax effect		0		0		0		0
Total reclassifications for the period, net of tax		$ (456)	[2]	$ (670)	[2]	$ (1,368)	[3]	$ (3,529)	[3]

[1] These accumulated other comprehensive loss components are included in the computation of net periodic pension and postretirement benefit cost included in sales, general and administrative expense. Prior service cost of $813 for pension curtailment is shown as restructuring expense in the Condensed Consolidated Statements of Operations and Comprehensive Loss for the nine months ended September 30, 2015. There was no pension curtailment expense in the three and nine months ended September 30, 2016 or the three months ended September 30, 2015.

[2] (a) See reclassifications from accumulated other comprehensive loss table for details of reclassification from accumulated other comprehensive loss for the three month periods ended September 30, 2016 and 2015.

[3] See reclassifications from accumulated other comprehensive loss table for details of reclassification from accumulated other comprehensive loss for the nine month periods ended September 30, 2016 and 2015.