Condensed Consolidated Statements Of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Net revenues	$ 181,021	$ 166,823
Cost of sales	179,011	150,569
Gross profit	2,010	16,254
Goodwill impairment	(6,689)	0
Selling, general and administrative expenses	(16,348)	(15,985)
Income (loss) from operations	(21,027)	269
Equity in losses of investment	(20)	(40)
Net interest expense	(5,746)	(2,098)
Other income (expense), net	(10,427)	1,166
Royalty income and other	2,199	2,345
Income (loss) before income taxes	(35,021)	1,642
Income tax provision (benefit)	(21,093)	324
Net income (loss)	(13,928)	1,318
Net loss attributable to redeemable noncontrolling interests	(1,990)	0
Net income (loss) attributable to common shareholders	$ (11,938)	$ 1,318
Earnings (loss) per share of common stock (in dollars per share)
Basic	$ (0.09)	$ 0.01
Diluted	$ (0.09)	$ 0.01
Weighted average common shares outstanding (in shares)
Basic	148,863	147,421
Diluted	148,863	147,751