CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
REVENUE	$ 7,027,476	$ 5,206,760	$ 4,140,364
COST OF SERVICES	5,551,065	4,216,251	3,398,756
Gross profit	1,476,411	990,509	741,608
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	730,072	574,423	489,344
GAIN ON SALE OF ASSETS	(3,030)	(2,302)	(1,585)
Operating income	749,369	418,388	253,849
OTHER INCOME (EXPENSE):
Interest income	11,554	3,492	46
Interest expense	(6,648)	(10,281)	(13,352)
Changes in the fair value of contingent earn-out obligations	(88,146)	(23,607)	(4,819)
Other	432	202	134
Other income (expense)	(82,808)	(30,194)	(17,991)
INCOME BEFORE INCOME TAXES	666,561	388,194	235,858
PROVISION (BENEFIT) FOR INCOME TAXES	144,128	64,796	(10,089)
NET INCOME	$ 522,433	$ 323,398	$ 245,947
INCOME PER SHARE:
Basic	$ 14.64	$ 9.03	$ 6.84
Diluted	$ 14.6	$ 9.01	$ 6.82
SHARES USED IN COMPUTING INCOME PER SHARE:
Basic	35,689	35,802	35,932
Diluted	35,775	35,895	36,046