Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Operating activities:
Net loss	$ (69,019)	$ (7,956)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	39,046	44,333
Asset impairments (note 4)	65,152
Change in accounts receivable	2,336	5,203
Change in inventories	16,545	(6,424)
Change in accounts payable	9,202	(4,759)
Accrued interest and amortization of discounts and finance fees	1,173	1,158
Pension & non-pension post-retirement benefits, net	(376)	(283)
Accrued liabilities & prepaid expenses	4,350	267
Income taxes	(5,062)	3,591
Cloud computing costs	(4,188)
Share-based compensation expense	3,231	2,827
Other operating activities	1,042	(1,087)
Net cash provided by operating activities	63,432	36,870
Investing activities:
Cash paid for property, plant and equipment	(31,159)	(45,087)
Net cash used in investing activities	(31,159)	(45,087)
Financing activities:
Borrowings on ABL credit facility	93,171	129,769
Repayments on ABL credit facility	(95,601)	(109,901)
Other repayments		(3,077)
Repayments on Term Loan B	(4,400)	(4,400)
Stock options exercised		5
Taxes paid on distribution of equity awards	(420)	(336)
Dividends		(2,595)
Debt refinancing costs	(755)
Net cash provided by (used in) financing activities	(8,005)	9,465
Effect of exchange rate fluctuations on cash	(416)	(878)
Increase in cash	23,852	370
Cash & cash equivalents at beginning of year	25,066	24,696
Cash & cash equivalents at end of year	48,918	25,066
Supplemental disclosure of cash flow information:
Cash paid during the year for interest, net of capitalized interest	20,738	20,091
Cash paid during the year for income taxes	$ 11,887	$ 8,514