Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenues	$ 176,438	$ 141,172
Cost of revenues	150,988	119,991
Selling, general and administrative expenses	24,433	20,911
Other operating (income) loss, net	50	(274)
Operating income	967	544
Foreign currency exchange (gain) loss	64	(332)
Interest expense, net	1,206	2,408
Loss on extinguishment of debt	0	790
Loss before income taxes	(303)	(2,322)
Provision (benefit) for income taxes	(2,824)	3,040
Net income (loss)	$ 2,521	$ (5,362)
Net income (loss) per common share - basic (in dollars per share)	$ 0.03	$ (0.06)
Net income (loss) per common share - diluted (in dollars per share)	$ 0.03	$ (0.06)