Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating activities:
Net income (loss)	$ (6,570)	$ 718
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	11,155	12,081
Loss on asset sales and disposals	23	61
Change in accounts receivable	1,961	7,217
Change in inventories	(3,827)	(12,467)
Change in accounts payable	(3,921)	(5,589)
Accrued interest and amortization of discounts and finance fees	378	(2,220)
Pension & non-pension postretirement benefits, net	2,116	(101)
Accrued liabilities & prepaid expenses	(4,545)	(1,616)
Income taxes	(4,236)	(2,965)
Share-based compensation expense	832	1,816
Other operating activities	320	(1,436)
Net cash used in operating activities	(6,314)	(4,501)
Investing activities:
Additions to property, plant and equipment	(11,952)	(9,855)
Net cash used in investing activities	(11,952)	(9,855)
Financing activities:
Borrowings on ABL credit facility	0	6,000
Repayments on ABL credit facility	0	(6,000)
Other repayments	(169)	(171)
Repayments on Term Loan B	(6,100)	(6,100)
Stock options exercised	0	1,029
Taxes paid on distribution of equity awards	(423)	(473)
Dividends	(2,577)	(2,515)
Treasury shares purchased	0	(1,197)
Net cash used in financing activities	(9,269)	(9,427)
Effect of exchange rate fluctuations on cash	267	309
Decrease in cash	(27,268)	(23,474)
Cash & cash equivalents at beginning of period	61,011	49,044
Cash & cash equivalents at end of period	33,743	25,570
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	4,504	7,318
Cash paid during the period for income taxes	$ 779	$ 1,544