CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
REVENUE	$ 1,831,286	$ 1,537,016
COST OF SERVICES	1,427,870	1,239,653
Gross profit	403,416	297,363
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	194,874	162,723
GAIN ON SALE OF ASSETS	(556)	(820)
Operating income	209,098	135,460
OTHER INCOME (EXPENSE):
Interest income	4,267	1,603
Interest expense	(1,619)	(1,633)
Changes in the fair value of contingent earn-out obligations	(3,758)	(12,491)
Other	24	117
Other income (expense)	(1,086)	(12,404)
INCOME BEFORE INCOME TAXES	208,012	123,056
PROVISION FOR INCOME TAXES	38,723	26,737
NET INCOME	$ 169,289	$ 96,319
INCOME PER SHARE:
Basic	$ 4.77	$ 2.7
Diluted	$ 4.75	$ 2.69
SHARES USED IN COMPUTING INCOME PER SHARE:
Basic	35,524	35,739
Diluted	35,605	35,828