CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenues	$ 981,553	$ 971,578	$ 717,699
Cost of revenues	895,048	852,591	643,623
Gross profit	86,505	118,987	74,076
Selling, general and administrative expenses	66,361	69,406	68,228
Goodwill and other impairment	0	0	29,017
Operating income (loss)	20,144	49,581	(23,169)
Other (income) expense	10,463	(878)	728
Interest expense	9,827	11,179	20,603
Loss on extinguishment of debt	921	7,155	0
Income (loss) before provision for income taxes	(1,067)	32,125	(44,500)
Provision (benefit) for income taxes	20,904	8,393	(7,451)
Net income (loss)	$ (21,971)	$ 23,732	$ (37,049)
Earnings (loss) per common share
Basic (in dollars per share)	$ (0.68)	$ 0.75	$ (1.20)
Diluted (in dollars per share)	$ (0.68)	$ 0.72	$ (1.20)
Weighted average shares outstanding
Basic (in shares)	32,334	31,501	30,943
Diluted (in shares)	32,334	32,790	30,943