Condensed Consolidated Statements of Operations (unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue		$ 489,638	$ 473,964	$ 1,435,151	$ 1,397,341
Costs and expenses:
Cost of services, exclusive of depreciation and amortization		351,103	336,812	1,027,366	994,726
General and administrative, exclusive of depreciation and amortization	[1]	37,088	38,245	110,825	109,898
Depreciation and amortization		15,213	17,959	51,568	54,552
Total costs and expenses		403,404	393,016	1,189,759	1,159,176
Other operating income		0	0	284	151
Income from operations		86,234	80,948	245,676	238,316
Other income and expense:
Equity in losses of unconsolidated subsidiaries		0	0	(3,676)	(526)
Interest expense		(21,369)	(64)	(21,275)	(108)
Income before income taxes		62,174	69,629	198,745	203,851
Income tax expense		16,415	15,205	49,648	47,964
Net income		45,759	54,424	149,097	155,887
Less: Net income attributable to non-controlling interests		1,421	1,318	4,066	3,775
Net income attributable to the Company		$ 44,338	$ 53,106	$ 145,031	$ 152,112
Earnings per common share (Note 10):
Basic (in dollars per share)		$ 0.37	$ 0.51	$ 1.32	$ 1.46
Diluted (in dollars per share)		$ 0.37	$ 0.51	$ 1.32	$ 1.46
Related Party
Other income and expense:
Interest expense on related party debt		$ (2,691)	$ (11,255)	$ (21,980)	$ (33,831)

[1] Includes the shared service fee from related party of $3.8 million and $3.6 million for the three months ended September 30, 2024 and 2023, respectively, and $11.5 million and $11.0 million for the nine months ended September 30, 2024 and 2023, respectively. See Note 11, Related Party Transactions, for additional information.