CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
CONSOLIDATED STATEMENTS OF OPERATIONS
REVENUE	$ 1,120,012	$ 833,896	$ 3,023,176	$ 2,217,552
COST OF SERVICES	917,788	674,684	2,492,816	1,808,416
Gross profit	202,224	159,212	530,360	409,136
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	121,194	95,287	357,694	271,050
GAIN ON SALE OF ASSETS	(406)	(180)	(1,112)	(1,021)
Operating income	81,436	64,105	173,778	139,107
OTHER INCOME (EXPENSE):
Interest income	5	1	14	7
Interest expense	(3,609)	(1,586)	(8,764)	(4,443)
Changes in the fair value of contingent earn-out obligations	(3,443)	(1,244)	530	4,523
Other	46	20	101	112
Other income (expense)	(7,001)	(2,809)	(8,119)	199
INCOME BEFORE INCOME TAXES	74,435	61,296	165,659	139,306
PROVISION (BENEFIT) FOR INCOME TAXES	12,920	14,999	(24,864)	33,553
NET INCOME	$ 61,515	$ 46,297	$ 190,523	$ 105,753
INCOME PER SHARE:
Basic	$ 1.72	$ 1.28	$ 5.30	$ 2.91
Diluted	$ 1.71	$ 1.27	$ 5.28	$ 2.90
SHARES USED IN COMPUTING INCOME PER SHARE:
Basic	35,853	36,296	35,966	36,328
Diluted	35,972	36,434	36,078	36,500