Basis of Presentation and Significant Accounting Policies Change in Accounting Policy (Change from LIFO to Average Cost (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cost of Goods Sold, Direct Materials									$ 674,615	$ 750,408	$ 788,126
Operating Income (Loss)									(181,674)	(102,839)	(24,590)
Loss before income taxes and equity in earnings (losses) of joint venture									(229,960)	(147,710)	(69,662)
Income tax (benefit) expense									(21,621)	(20,631)	(23,142)
Income Loss from Continuing Operations Before Income Loss from Equity Method Investments Net of Tax									(208,339)	(127,079)	(46,520)
Net loss	$ (119,717)	$ (27,800)	$ (46,808)	$ (15,440)	$ (29,684)	$ (8,028)	$ (67,066)	$ (14,610)	$ (209,765)	$ (119,388)	$ (39,533)
Diluted loss per share	$ (5.08)	$ (1.18)	$ (1.99)	$ (0.66)	$ (1.27)	$ (0.34)	$ (2.87)	$ (0.63)	$ (8.91)	$ (5.11)	$ (1.70)
Inventory, Net	$ 235,443				$ 359,630				$ 235,443	$ 359,630
(Accumulated deficit) retained earnings	(145,309)				64,456				(145,309)	64,456		$ 84,138
Deferred tax (benefit) expense									(23,842)	(19,094)	$ (27,436)
Increase (Decrease) in Inventories									(63,986)	22,976	(96,234)
Accumulated other comprehensive loss	$ (33,821)				(37,116)				(33,821)	(37,116)	(18,743)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax									(9,937)	12,996	(4,623)
Other Comprehensive (Loss) Income									3,295	(18,373)	2,328
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									$ (206,470)	(137,761)	(37,205)
Scenario, Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cost of Goods Sold, Direct Materials										746,443	779,208
Operating Income (Loss)										(98,874)	(15,672)
Loss before income taxes and equity in earnings (losses) of joint venture										(143,745)	(60,744)
Income tax (benefit) expense										(1,353)	(19,795)
Income Loss from Continuing Operations Before Income Loss from Equity Method Investments Net of Tax										(142,392)	(40,949)
Net loss										$ (134,701)	$ (33,962)
Diluted loss per share										$ (5.77)	$ (1.46)
Inventory, Net					236,932					$ 236,932
(Accumulated deficit) retained earnings					(29,424)					(29,424)
Deferred tax (benefit) expense										184	$ (24,089)
Increase (Decrease) in Inventories										(26,941)	87,316
Accumulated other comprehensive loss					(45,565)					(45,565)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax										(21,445)	4,623
Other Comprehensive (Loss) Income										(26,822)	2,328
Comprehensive Income (Loss), Net of Tax, Attributable to Parent										(161,523)	(31,634)
Restatement Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cost of Goods Sold, Direct Materials										3,965	8,918
Operating Income (Loss)										(3,965)	(8,918)
Loss before income taxes and equity in earnings (losses) of joint venture										(3,965)	(8,918)
Income tax (benefit) expense										(19,278)	(3,347)
Income Loss from Continuing Operations Before Income Loss from Equity Method Investments Net of Tax										15,313	(5,571)
Net loss										$ 15,313	$ (5,571)
Diluted loss per share										$ 0.66	$ (0.24)
Inventory, Net					122,698					$ 122,698
(Accumulated deficit) retained earnings					93,880					93,880
Deferred tax (benefit) expense										(19,278)	$ (3,347)
Increase (Decrease) in Inventories										3,965	8,918
Accumulated other comprehensive loss					$ 8,449					8,449
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax										8,449	0
Other Comprehensive (Loss) Income										8,449	0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent										$ 23,762	$ (5,571)