Condensed Consolidated Statements Of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Net revenues	$ 166,823	$ 164,262
Cost of sales	150,569	151,279
Gross profit	16,254	12,983
Selling, general and administrative expenses	(15,985)	(14,099)
Income (loss) from operations	269	(1,116)
Equity in losses of investment	(40)	(136)
Net interest expense	(2,098)	(3,896)
Loss on extinguishment of long-term debt	0	(1,105)
Other income, net	1,166	925
Royalty income and other	2,345	2,855
Income (loss) before income taxes	1,642	(2,473)
Income tax provision	324	87
Net income (loss)	$ 1,318	$ (2,560)
Earnings (loss) per share of common stock (in dollars per share)
Basic	$ 0.01	$ (0.02)
Diluted	$ 0.01	$ (0.02)
Weighted average common shares outstanding (in shares)
Basic	147,421	146,653
Diluted	147,751	146,653