Stockholders' Equity AOCI Reclassification (Details) - Equity Component [Domain] - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments				$ (3,080)	$ 0
Prior service cost	[1]	$ (907)	$ (70)	1,001	141
Actuarial loss	[1]	(930)	(345)	(1,858)	(690)
Total before tax		(1,837)	(415)	(2,859)	(831)
Tax effect		0	161	0	324
Total reclassifications for the period, net of tax	[2]	(1,837)	(254)	(2,859)	(507)
Pension and Other Postretirement Plans Costs [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments		$ 813	$ 0	$ 813	$ 0

[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 activity, net" in the Condensed Consolidated Statements of Operations and Comprehensive Loss for the three and six month periods ended June 30, 2015. There was no pension curtailment expense in 2014 (see Note 11 for additional details).

[2] See reclassifications from accumulated other comprehensive loss table for details of reclassification from accumulated other comprehensive loss for the six months periods ended June 30, 2015 and 2014, respectively.