Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Net service revenues	$ 289,787	$ 270,721	$ 857,455	$ 782,300
Cost of service revenues	197,583	183,991	583,916	534,837
Gross profit	92,204	86,730	273,539	247,463
General and administrative expenses	62,805	60,271	187,444	174,028
Depreciation and amortization	3,446	3,620	10,316	10,449
Total operating expenses	66,251	63,891	197,760	184,477
Operating income	25,953	22,839	75,779	62,986
Interest income	(1,908)	(580)	(2,805)	(977)
Interest expense	573	3,199	5,445	7,991
Total interest (income) expense, net	(1,335)	2,619	2,640	7,014
Income before income taxes	27,288	20,220	73,139	55,972
Income tax expense	7,125	4,809	19,067	13,034
Net income	$ 20,163	$ 15,411	$ 54,072	$ 42,938
Net income per common share
Basic income per share	$ 1.13	$ 0.96	$ 3.24	$ 2.69
Diluted income per share	$ 1.10	$ 0.95	$ 3.17	$ 2.63
Weighted average number of common shares and potential common shares outstanding:
Basic	17,868	16,012	16,707	15,988
Diluted	18,255	16,286	17,065	16,307

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Name:	us-gaap_CostOfGoodsAndServicesSold
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1