Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net income	$ 46,025	$ 45,126	$ 33,133
Adjustments to reconcile net income to net cash provided by operating activities, net of acquisitions:
Depreciation and amortization	14,060	14,494	12,051
Deferred income taxes	3,908	7,282	(4,652)
Stock-based compensation	10,625	9,434	6,005
Amortization of debt issuance costs under the credit facility	860	804	737
Provision for credit losses	678	962	918
Impairment of assets	1,174		1,256
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	20,592	(3,916)	23,860
Prepaid expenses and other current assets	1,471	(8,599)	(1,973)
Government stimulus advances	8,739	(27,914)	19,393
Accounts payable	2,514	(4,810)	2,159
Accrued payroll	(918)	7,888	5,228
Accrued expenses and other liabilities	(4,618)	(1,263)	11,296
Net cash provided by operating activities	105,110	39,488	109,411
Cash flows from investing activities:
Business acquisition, net of cash acquired	(98,290)	(37,370)	(207,660)
Proceeds on disposal of businesses			255
Purchases of property and equipment	(8,300)	(4,645)	(6,831)
Net cash used in investing activities	(106,590)	(42,015)	(214,236)
Cash flows from financing activities:
Borrowings on revolver — credit facility	47,000	46,395	135,000
Payments on revolver - credit facility	(137,000)
Payments on term loan — credit facility		(18,130)	(735)
Payments on financing lease obligations			(22)
Payments for debt issuance costs under the credit facility		(3,029)
Cash received from exercise of stock options	2,546	1,108	3,946
Net cash (used in) provided by financing activities	(87,454)	26,344	138,189
Net change in cash	(88,934)	23,817	33,364
Cash, at beginning of period	168,895	145,078	111,714
Cash, at end of period	79,961	168,895	145,078
Supplemental disclosures of cash flow information:
Cash paid for interest	7,985	5,094	2,365
Cash paid for income taxes	1,483	17,820	10,590
Supplemental disclosures of non-cash investing and financing activities
Leasehold improvements acquired through tenant allowances	295		5,161
Licensing fees included in fixed assets	$ 4,000
Tax benefit related to the amortization of tax goodwill in excess of book basis		$ 61	$ 225