Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating activities:
Net income	$ 28,459	$ 6,966	$ 23,641
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	43,969	41,471	42,188
(Gain) loss on asset sales and disposals	514	446	(5,941)
Change in accounts receivable	(12,674)	7,187	3,076
Change in inventories	(3,932)	(10,969)	(221)
Change in accounts payable	12,190	6,285	403
Accrued interest and amortization of discounts and finance fees	1,496	(6,433)	3,047
Call premium on senior notes	1,350	23,602	1,203
Write-off of finance fee & discounts on senior notes and ABL	1,168	10,975	1,600
Pension & non-pension postretirement benefits	7,746	(76,344)	(9,074)
Restructuring	2,212	0	(828)
Accrued liabilities & prepaid expenses	(17,507)	322	1,917
Income taxes	(1,804)	1,628	(11,200)
Share-based compensation expense	5,063	3,321	5,016
Other operating activities	4,479	40	524
Net cash provided by operating activities	72,729	8,497	55,351
Investing activities:
Additions to property, plant and equipment	(49,407)	(32,720)	(41,420)
Net proceeds from sale of Traex	0	0	12,478
Proceeds from asset sales and other	81	647	5,222
Net cash used in investing activities	(49,326)	(32,073)	(23,720)
Financing activities:
Borrowings on ABL credit facility	51,000	0	50,089
Repayments on ABL credit facility	(51,000)	0	(50,089)
Other repayments	(14,270)	(23,116)	(14,108)
Other borrowings	6,094	1,234	365
Proceeds from (payments on) 6.875% senior notes	(45,000)	450,000	0
Payments on 10% senior notes	0	(360,000)	(40,000)
Call premium on senior notes	(1,350)	(23,602)	(1,203)
Proceeds from exercise of warrants	0	0	5,459
Stock options exercised	5,384	1,231	482
Debt issuance costs and other	0	(13,475)	(463)
Net cash provided by (used in) financing activities	(49,142)	32,272	(49,468)
Effect of exchange rate fluctuations on cash	739	221	(130)
Increase (decrease) in cash	(25,000)	8,917	(17,967)
Cash & cash equivalents at beginning of year	67,208	58,291	76,258
Cash & cash equivalents at end of year	42,208	67,208	58,291
Supplemental disclosure of cash flow information:
Cash paid during the year for interest	30,008	44,105	40,025
Cash paid during the year for income taxes	$ 10,855	$ 3,402	$ 10,230