Condensed Consolidated Statements Of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Net revenues	$ 163,260	$ 161,245	$ 418,117	$ 359,551
Cost of sales	142,119	121,061	379,434	330,639
Gross profit	21,141	40,184	38,683	28,912
Loss on disposition of assets, net			(39)	0
Selling, general and administrative expenses	(16,374)	(18,714)	(46,532)	(47,493)
Income (loss) from operations	4,767	21,470	(7,888)	(18,581)
Equity in losses of investment	(153)	(122)	(457)	(366)
Net interest expense	(3,615)	(6,843)	(15,480)	(25,007)
Gain (loss) on early extinguishment of long-term debt	0	244	(397)	546
Other income (expense), net	(551)	830	(619)	4,018
Other income (expense) – oil and gas	303	(468)	3,196	2,500
Income (loss) before income taxes	751	15,111	(21,645)	(36,890)
Income tax provision (benefit)	(1,539)	3,649	(1,117)	(9,858)
Net income (loss)	$ 2,290	$ 11,462	$ (20,528)	$ (27,032)
Earnings (loss) per share of common stock (in dollars per share)
Basic	$ 0.02	$ 0.10	$ (0.14)	$ (0.25)
Diluted	$ 0.02	$ 0.10	$ (0.14)	$ (0.25)
Weighted average common shares outstanding (in shares)
Basic	145,958	113,680	145,057	109,135
Diluted	145,958	113,680	145,057	109,135