UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
REVENUES	$ 191,972	$ 139,370
OPERATING EXPENSES:
Cost of revenues (exclusive of depreciation and amortization below)	100,956	67,579
Corporate technology and production systems	12,552	10,353
Selling, general and administrative	42,333	29,606
Depreciation and amortization	20,156	20,549
Impairments of long-lived assets	0	2,876
Total operating expenses	175,997	130,963
OPERATING INCOME	15,975	8,407
OTHER EXPENSE (INCOME):
Interest expense, net	6,336	7,570
Gain on interest rate swaps	(328)	(46)
Other income	(354)	(271)
Total other expense, net	5,654	7,253
INCOME BEFORE INCOME TAXES	10,321	1,154
Income tax provision	4,085	526
NET INCOME	6,236	628
Unrealized loss on hedged transactions, net of tax	0	(134)
Foreign currency translation adjustments, net of tax	283	372
Total other comprehensive income	283	238
COMPREHENSIVE INCOME	$ 6,519	$ 866
Net income per share attributable to stockholders
Basic (in USD per share)	$ 0.07	$ 0.01
Diluted (in USD per share)	$ 0.06	$ 0.01
Weighted average number of shares outstanding
Basic (in shares)	93,967,819	88,602,167
Diluted (in shares)	99,186,456	92,165,163