Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Consolidated Statements of Operations
Sales of goods	$ 100,293	$ 147,648	$ 326,278	$ 417,224
Sales of services	14,351	28,411	50,670	68,161
Total net sales	114,644	176,059	376,948	485,385
Cost of goods sold	81,674	117,474	260,705	328,461
Cost of services sold	13,167	22,547	44,667	53,143
Total cost of sales	94,841	140,021	305,372	381,604
Gross profit	19,803	36,038	71,576	103,781
Selling and administrative expenses	19,807	21,605	65,941	68,133
Amortization expense	1,763	3,337	7,818	8,950
Asset impairments	6,946	80,337	135,884	80,337
Interest expense	1,520	1,265	4,342	3,166
Interest income	(50)	(66)	(157)	(160)
Equity in loss of nonconsolidated investments	263	299	946	312
Other income	(1,085)	(537)	(263)	(1,245)
Total operating expenses	29,164	106,240	214,511	159,493
Loss before income taxes	(9,361)	(70,202)	(142,935)	(55,712)
Income tax benefit	(3,379)	(12,780)	(42,125)	(7,939)
Net loss	$ (5,982)	$ (57,422)	$ (100,810)	$ (47,773)
Basic loss per common share	$ (0.58)	$ (5.60)	$ (9.82)	$ (4.65)
Diluted loss per common share	(0.58)	(5.60)	(9.82)	(4.65)
Dividends paid per common share	$ 0.04	$ 0.04	$ 0.12	$ 0.12