Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating activities:
Net income	$ 12,322	$ 34,225
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	36,669	31,286
Loss on asset sales and disposals	165	390
Change in accounts receivable	(3,714)	(7,702)
Change in inventories	(12,949)	(31,904)
Change in accounts payable	(6,669)	(8,656)
Accrued interest and amortization of discounts and finance fees	(1,510)	946
Pension & non-pension postretirement benefits, net	(1,653)	1,453
Accrued liabilities & prepaid expenses	15,174	12,800
Income taxes	2,344	(4,925)
Share-based compensation expense	4,334	5,549
Excess tax benefit from share-based compensation arrangements	(366)	0
Other operating activities	(554)	(1,414)
Net cash provided by operating activities	43,593	32,048
Investing activities:
Additions to property, plant and equipment	(23,523)	(41,480)
Proceeds from asset sales and other	0	2
Net cash used in investing activities	(23,523)	(41,478)
Financing activities:
Borrowings on ABL credit facility	6,000	44,500
Repayments on ABL credit facility	(6,000)	(37,500)
Other repayments	(350)	(3,267)
Other borrowings	339	0
Repayments on Term Loan B	(18,300)	(3,300)
Stock options exercised	1,153	3,334
Excess tax benefit from share-based compensation arrangements	366	0
Dividends	(7,551)	(7,197)
Treasury shares purchased	(2,000)	(15,275)
Net cash used in financing activities	(26,343)	(18,705)
Effect of exchange rate fluctuations on cash	(101)	(1,808)
Decrease in cash	(6,374)	(29,943)
Cash & cash equivalents at beginning of period	49,044	60,044
Cash & cash equivalents at end of period	42,670	30,101
Supplemental disclosure of cash flow information:
Cash paid during the period for interest, net of capitalized interest	16,927	12,237
Cash paid during the period for income taxes	$ 5,576	$ 3,858