Supplemental Guarantor Information (Income and Comprehensive Income) (Details) (USD $)	3 Months Ended	12 Months Ended
Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates		$ 0us-gaap_RevenueFromRelatedParties	$ 0us-gaap_RevenueFromRelatedParties	$ 0us-gaap_RevenueFromRelatedParties
Sales - third party		1,085,304,000us-gaap_OtherSalesRevenueNet	1,166,674,000us-gaap_OtherSalesRevenueNet	1,248,264,000us-gaap_OtherSalesRevenueNet
Net sales		1,085,304,000us-gaap_SalesRevenueNet	1,166,674,000us-gaap_SalesRevenueNet	1,248,264,000us-gaap_SalesRevenueNet
Cost of sales		993,057,000us-gaap_CostOfGoodsAndServicesSold	1,027,608,000us-gaap_CostOfGoodsAndServicesSold	932,460,000us-gaap_CostOfGoodsAndServicesSold
Gross profit		92,247,000us-gaap_GrossProfit	139,066,000us-gaap_GrossProfit	315,804,000us-gaap_GrossProfit
Research and development		14,844,000us-gaap_ResearchAndDevelopmentExpense	10,437,000us-gaap_ResearchAndDevelopmentExpense	13,796,000us-gaap_ResearchAndDevelopmentExpense
Selling and administrative expenses		124,178,000	111,043,000	145,540,000
Impairment of long-lived assets and goodwill	75,700,000	197,220,000	0	0
Rationalizations		11,625,000	20,156,000	0
Operating income (loss)		(255,620,000)us-gaap_OperatingIncomeLoss	(2,570,000)us-gaap_OperatingIncomeLoss	156,468,000us-gaap_OperatingIncomeLoss
Equity in earnings of, and gain recorded on acquisition of, non-consolidated affiliate		0	0	0
Other (income) expense, net		2,445,000us-gaap_OtherNonoperatingIncomeExpense	1,698,000us-gaap_OtherNonoperatingIncomeExpense	(1,005,000)us-gaap_OtherNonoperatingIncomeExpense
Interest expense - affiliate		0us-gaap_InterestExpenseRelatedParty	0us-gaap_InterestExpenseRelatedParty	0us-gaap_InterestExpenseRelatedParty
Interest expense - third party		37,057,000us-gaap_InterestExpenseOther	36,037,000us-gaap_InterestExpenseOther	23,247,000us-gaap_InterestExpenseOther
Interest income - affiliate		0	0	0
Interest income		(330,000)us-gaap_InvestmentIncomeInterest	(203,000)us-gaap_InvestmentIncomeInterest	(261,000)us-gaap_InvestmentIncomeInterest
Income before income taxes		(294,792,000)	(40,102,000)	134,487,000
(Benefit) provision for income taxes		(9,416,000)us-gaap_IncomeTaxExpenseBenefit	(12,843,000)us-gaap_IncomeTaxExpenseBenefit	16,846,000us-gaap_IncomeTaxExpenseBenefit
Net income (loss)		(285,376,000)us-gaap_NetIncomeLoss	(27,259,000)us-gaap_NetIncomeLoss	117,641,000us-gaap_NetIncomeLoss
Statements of Comprehensive Income
Net income		(285,376,000)us-gaap_NetIncomeLoss	(27,259,000)us-gaap_NetIncomeLoss	117,641,000us-gaap_NetIncomeLoss
Foreign currency translation		(33,041,000)	(13,981,000)	(9,929,000)
Commodities and foreign currency derivatives		(10,859,000)	2,035,000	(8,812,000)
Other comprehensive loss, net of tax:		(43,900,000)	(11,946,000)	(18,741,000)
Comprehensive income (loss)		(329,276,000)us-gaap_ComprehensiveIncomeNetOfTax	(39,205,000)us-gaap_ComprehensiveIncomeNetOfTax	98,900,000us-gaap_ComprehensiveIncomeNetOfTax
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates		0	0	0
Sales - third party		0	0	0
Net sales		0	0	0
Cost of sales		0	0	0
Gross profit		0	0	0
Research and development		0	0	0
Selling and administrative expenses		0	0	0
Impairment of long-lived assets and goodwill		0
Rationalizations		0	0
Operating income (loss)		0	0	0
Equity in earnings of, and gain recorded on acquisition of, non-consolidated affiliate		251,495,000	7,857,000	(128,368,000)
Other (income) expense, net		0	0	0
Interest expense - affiliate		0	0	3,766,000
Interest expense - third party		32,118,000	31,294,000	12,992,000
Interest income - affiliate		(806,000)	(1,233,000)	(59,000)
Interest income		0	0	0
Income before income taxes		(31,312,000)	(30,061,000)	(16,699,000)
(Benefit) provision for income taxes		3,319,000	(10,659,000)	(5,972,000)
Net income (loss)		(286,126,000)	(27,259,000)	117,641,000
Statements of Comprehensive Income
Net income		(286,126,000)	(27,259,000)	117,641,000
Other comprehensive loss, net of tax:		(43,900,000)	(11,946,000)	(18,741,000)
Comprehensive income (loss)		(330,026,000)	(39,205,000)	98,900,000
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates		263,742,000	220,354,000	194,345,000
Sales - third party		422,991,000	469,033,000	566,024,000
Net sales		686,733,000	689,387,000	760,369,000
Cost of sales		630,031,000	584,819,000	638,419,000
Gross profit		56,702,000	104,568,000	121,950,000
Research and development		14,844,000	10,437,000	13,796,000
Selling and administrative expenses		55,454,000	40,548,000	61,442,000
Impairment of long-lived assets and goodwill		186,552,000
Rationalizations		9,109,000	2,732,000
Operating income (loss)		(209,257,000)	50,851,000	46,712,000
Equity in earnings of, and gain recorded on acquisition of, non-consolidated affiliate		40,699,000	46,050,000	(87,188,000)
Other (income) expense, net		1,575,000	(176,000)	(2,133,000)
Interest expense - affiliate		806,000	1,364,000	59,000
Interest expense - third party		4,037,000	3,029,000	7,977,000
Interest income - affiliate		0	(670,000)	(4,352,000)
Interest income		(11,000)	0	0
Income before income taxes		(215,664,000)	47,304,000	45,161,000
(Benefit) provision for income taxes		(5,618,000)	9,111,000	3,981,000
Net income (loss)		(250,745,000)	(7,857,000)	128,368,000
Statements of Comprehensive Income
Net income		(250,745,000)	(7,857,000)	128,368,000
Other comprehensive loss, net of tax:		(43,900,000)	(11,946,000)	(18,741,000)
Comprehensive income (loss)		(294,645,000)	(19,803,000)	109,627,000
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates		150,346,000	149,251,000	216,859,000
Sales - third party		662,313,000	697,641,000	682,240,000
Net sales		812,659,000	846,892,000	899,099,000
Cost of sales		777,114,000	812,394,000	705,245,000
Gross profit		35,545,000	34,498,000	193,854,000
Research and development		0	0	0
Selling and administrative expenses		68,724,000	70,495,000	84,098,000
Impairment of long-lived assets and goodwill		10,668,000
Rationalizations		2,516,000	17,424,000
Operating income (loss)		(46,363,000)	(53,421,000)	109,756,000
Equity in earnings of, and gain recorded on acquisition of, non-consolidated affiliate		0	0	0
Other (income) expense, net		870,000	1,874,000	1,128,000
Interest expense - affiliate		0	670,000	586,000
Interest expense - third party		902,000	1,714,000	2,278,000
Interest income - affiliate		0	(131,000)	0
Interest income		(319,000)	(203,000)	(261,000)
Income before income taxes		(47,816,000)	(57,345,000)	106,025,000
(Benefit) provision for income taxes		(7,117,000)	(11,295,000)	18,837,000
Net income (loss)		(40,699,000)	(46,050,000)	87,188,000
Statements of Comprehensive Income
Net income		(40,699,000)	(46,050,000)	87,188,000
Other comprehensive loss, net of tax:		(28,650,000)	(13,601,000)	(9,929,000)
Comprehensive income (loss)		(69,349,000)	(59,651,000)	77,259,000
Consolidating Entries and Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates		(414,088,000)	(369,605,000)	(411,204,000)
Sales - third party		0	0	0
Net sales		(414,088,000)	(369,605,000)	(411,204,000)
Cost of sales		(414,088,000)	(369,605,000)	(411,204,000)
Gross profit		0	0	0
Research and development		0	0	0
Selling and administrative expenses		0	0	0
Rationalizations		0	0
Operating income (loss)		0	0	0
Equity in earnings of, and gain recorded on acquisition of, non-consolidated affiliate		(292,194,000)	(53,907,000)	215,556,000
Other (income) expense, net		0	0	0
Interest expense - affiliate		(806,000)	(2,034,000)	(4,411,000)
Interest expense - third party		0	0	0
Interest income - affiliate		806,000	2,034,000	4,411,000
Interest income		0	0	0
Income before income taxes		0	0	0
(Benefit) provision for income taxes		0	0	0
Net income (loss)		292,194,000	53,907,000	(215,556,000)
Statements of Comprehensive Income
Net income		292,194,000	53,907,000	(215,556,000)
Other comprehensive loss, net of tax:		72,550,000	25,547,000	28,670,000
Comprehensive income (loss)		$ 364,744,000	$ 79,454,000	$ (186,886,000)

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Interest expense on all other items not previously classified. For example, includes dividends associated with redeemable preferred stock of a subsidiary that is treated as a liability in the parent's consolidated balance sheet.

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Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

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Amount after tax and reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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