Unaudited Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Revenue from Contract with Customer, Product and Service [Extensible Enumeration]	Service [Member]	Service [Member]	Service [Member]	Service [Member]
Service revenue	$ 255,345	$ 225,626	$ 720,743	$ 690,101
Operating expenses:
Cost of services	153,765	130,139	433,052	401,455
Selling, general, and administrative expense	62,650	57,114	171,830	179,583
Depreciation	9,758	9,762	30,525	29,502
Amortization of intangible assets	4,988	5,027	14,955	15,276
Loss (gain) on disposal of assets	(10)	640	(93)	772
Total operating expenses	231,151	202,682	650,269	626,588
Operating income	24,194	22,944	70,474	63,513
Other expense (income), net	898	2,895	(2,007)	34
Financing expenses	5,504	5,712	16,532	16,141
Income before income taxes	17,792	14,337	55,949	47,338
Provision for income taxes	5,093	4,565	18,938	17,925
Net income	$ 12,699	$ 9,772	$ 37,011	$ 29,413
Net income per common share:
Basic (in usd per share)	$ 0.14	$ 0.11	$ 0.42	$ 0.31
Diluted (in usd per share)	$ 0.14	$ 0.10	$ 0.40	$ 0.30
Weighted-average number of common shares outstanding:
Basic (in shares)	88,978,159	92,480,316	88,701,787	95,522,026
Diluted (in shares)	92,579,919	94,035,111	92,019,911	97,729,230