CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net income	$ 121,509	$ 142,177	$ 127,791
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation	23,739	23,181	20,900
Amortization	98,634	104,147	112,493
Amortization of operating lease right-of-use assets	11,620	11,036	10,515
Amortization of deferred debt issuance costs	4,323	4,561	4,685
Deferred income taxes	(4,085)	1,603	3,733
Stock-based compensation expense	24,547	29,753	27,242
Gain on divestiture	0	(38,452)	0
Other	1,921	3,028	855
Changes in operating assets and liabilities, net of impact of divestiture:
Receivables	(62,998)	(132,194)	(43,830)
Accounts payable	(3,775)	7,730	1,408
Accrued employee compensation	8,146	(3,161)	3,674
Deferred revenue	2,705	(2,977)	(17,332)
Other current and noncurrent assets and liabilities	(57,769)	(7,051)	(31,661)
Net cash flows from operating activities	168,517	143,381	220,473
Cash flows from investing activities:
Purchases of property and equipment	(8,924)	(13,103)	(20,582)
Purchases of software and distribution rights	(28,853)	(26,790)	(24,786)
Proceeds from divestiture	0	100,139	0
Net cash flows from investing activities	(37,777)	60,246	(45,368)
Cash flows from financing activities:
Proceeds from issuance of common stock	2,819	3,581	3,440
Proceeds from exercises of stock options	6,726	4,584	8,862
Repurchase of stock-based compensation awards for tax withholdings	(5,149)	(6,983)	(14,833)
Repurchase of common stock	(27,587)	(206,537)	(107,378)
Proceeds from revolving credit facility	134,000	180,000	35,000
Repayments of revolving credit facility	(115,000)	(75,000)	(90,000)
Repayments of term portion of credit agreement	(73,031)	(85,431)	(38,950)
Payments on or proceeds from other debt, net	(16,766)	(12,123)	(15,185)
Payments for debt issuance costs	(2,160)	0	0
Net increase (decrease) in settlement assets and liabilities	(15,404)	26,849	(37,834)
Net cash flows from financing activities	(111,552)	(171,060)	(256,878)
Effect of exchange rate fluctuations on cash	4,961	(2,037)	533
Net increase (decrease) in cash and cash equivalents	24,149	30,530	(81,240)
Cash and cash equivalents, including settlement deposits, beginning of period	214,672	184,142	265,382
Cash and cash equivalents, including settlement deposits, end of period	238,821	214,672	184,142
Reconciliation of cash and cash equivalents to the Consolidated Balance Sheets
Cash and cash equivalents	164,239	124,981	122,059
Settlement deposits	74,582	89,691	62,083
Total cash and cash equivalents, including settlement deposits	238,821	214,672	184,142
Supplemental cash flow information
Income taxes paid, net	65,441	43,553	46,166
Interest paid	$ 73,543	$ 48,526	$ 40,071