CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
CONSOLIDATED STATEMENTS OF OPERATIONS
Revenue	$ 988,001	$ 933,854	$ 685,509
Direct operating costs	754,923	683,703	475,675
Gross profit	233,078	250,151	209,834
Selling, general and administrative expenses	199,732	206,169	141,123
Goodwill and intangible asset impairment charges		404,900
Operating income (loss)	33,346	(360,918)	68,711
Other income (expense):
Interest income	1,417	258	605
Interest expense	(28,966)	(32,595)	(19,239)
Foreign currency loss	(171)	(1,134)	(733)
Other	4,476	788	455
Total other expense	(23,244)	(32,683)	(18,912)
Income (loss) before income taxes	10,102	(393,601)	49,799
Income tax expense (benefit)	4,765	(4,242)	16,659
Net income (loss)	$ 5,337	$ (389,359)	$ 33,140
Earnings (loss) per share:
Basic	$ 0.17	$ (12.51)	$ 1.41
Diluted	$ 0.17	$ (12.51)	$ 1.40
Shares used in earnings (loss) per share calculation:
Basic	31,138	31,126	23,521
Diluted	31,373	31,126	23,749