Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Operating activities:
Net income (loss)	$ (25,168)	$ 12,436	$ (28,552)	$ 14,425
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	10,592	11,623	21,268	22,397
(Gain) loss on asset sales and disposals	17	31	13	33
Change in accounts receivable	(19,481)	(4,836)	(16,399)	(10,879)
Change in inventories	(8,168)	(7,857)	(19,363)	(18,492)
Change in accounts payable	6,667	1,428	1,352	(6,317)
Accrued interest and amortization of discounts and finance fees	(5,911)	(7,521)	1,345	610
Call premium on senior notes	37,348	1,350	37,348	1,350
Write-off of finance fees on senior notes	9,086	1,168	9,086	1,168
Pension & non-pension postretirement benefits	1,397	1,504	2,769	5,204
Restructuring	(46)	(659)	(289)	3,655
Accrued liabilities & prepaid expenses	4,647	(793)	(7,722)	(16,585)
Income taxes	(770)	(2,553)	(3,923)	(4,179)
Share-based compensation expense	1,634	1,485	2,637	2,309
Other operating activities	(1,491)	2,579	(1,586)	2,006
Net cash provided by (used in) operating activities	10,353	9,385	(2,016)	(3,295)
Investing activities:
Additions to property, plant and equipment	(11,934)	(10,889)	(21,835)	(19,771)
Proceeds from furnace malfunction insurance recovery			4,346	0
Proceeds from asset sales and other	0	4	4	8
Net cash (used in) investing activities	(11,934)	(10,885)	(17,485)	(19,763)
Financing activities:
Borrowing on ABL credit facility	21,300	30,400	21,300	30,400
Repayments on ABL credit facility	(14,300)	(20,600)	(14,300)	(20,600)
Other repayments	(65)	(55)	(115)	(114)
Other borrowings	1,964	0	1,964	0
Payments on 6.875% senior notes	(405,000)	(45,000)	(405,000)	(45,000)
Proceeds from Term Loan B	438,900	0	438,900	0
Call premium on senior notes	(37,348)	(1,350)	(37,348)	(1,350)
Stock options exercised	1,786	2,511	2,122	3,048
Debt issuance costs and other	(6,868)	0	(6,868)	0
Net cash provided by (used in) financing activities	369	(34,094)	655	(33,616)
Effect of exchange rate fluctuations on cash	(52)	189	(153)	10
Increase (decrease) in cash	(1,264)	(35,405)	(18,999)	(56,664)
Cash at beginning of period	24,473	45,949	42,208	67,208
Cash at end of period	23,209	10,544	23,209	10,544
Supplemental disclosure of cash flows information:
Cash paid during the period for interest, net of capitalized interest	11,483	15,560	11,667	15,848
Cash paid during the period for income taxes	$ 1,477	$ 5,931	$ 3,293	$ 7,815