CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income	$ 127,791	$ 72,660	$ 67,062
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation	20,900	24,728	24,092
Amortization	112,493	115,588	98,477
Amortization of operating lease right-of-use assets	10,515	23,448	15,934
Amortization of deferred debt issuance costs	4,685	4,802	4,128
Deferred income taxes	3,733	3,349	(22,140)
Stock-based compensation expense	27,242	29,602	36,763
Other	855	6,017	5,175
Changes in operating assets and liabilities, net of impact of acquisitions:
Receivables	(43,830)	8,793	(19,054)
Accounts payable	1,408	2,484	(7,703)
Accrued employee compensation	3,674	18,491	(10,829)
Deferred revenue	(17,332)	9,421	(37,561)
Other current and noncurrent assets and liabilities	(31,661)	(4,488)	(21,739)
Net cash flows from operating activities	220,473	314,895	132,605
Cash flows from investing activities:
Purchases of property and equipment	(20,582)	(17,804)	(23,099)
Purchases of software and distribution rights	(24,786)	(28,829)	(24,915)
Acquisition of businesses, net of cash acquired	0	0	(757,268)
Other	0	15,934	(25,199)
Net cash flows from investing activities	(45,368)	(30,699)	(830,481)
Cash flows from financing activities:
Proceeds from issuance of common stock	3,440	3,759	3,591
Proceeds from exercises of stock options	8,862	11,924	12,985
Repurchase of stock-based compensation awards for tax withholdings	(14,833)	(11,568)	(3,986)
Repurchase of common stock	(107,378)	(28,881)	(35,617)
Proceeds from revolving credit facility	35,000	30,000	280,000
Repayments of revolving credit facility	(90,000)	(214,000)	(41,000)
Proceeds from term portion of credit agreement	0	0	500,000
Repayments of term portion of credit agreement	(38,950)	(38,950)	(28,900)
Payment for debt issuance costs	0	0	(12,830)
Payments on or proceeds from other debt, net	(15,185)	(13,854)	(7,020)
Net (decrease) increase in settlement assets and liabilities	(37,834)	101,681	1,127
Net cash flows from financing activities	(256,878)	(159,889)	668,350
Effect of exchange rate fluctuations on cash	533	(57)	(1,495)
Net (decrease) increase in cash and cash equivalents	(81,240)	124,250	(31,021)
Cash and cash equivalents, including settlement deposits, beginning of period	265,382	141,132	172,153
Cash and cash equivalents, including settlement deposits, end of period	184,142	265,382	141,132
Cash and cash equivalents	122,059	165,374	121,398
Settlement assets	62,083	100,008	19,734
Total cash and cash equivalents, including settlement deposits	184,142	265,382	141,132
Supplemental cash flow information
Income taxes paid, net	46,166	27,760	27,727
Interest paid	$ 40,071	$ 51,991	$ 58,980