CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net income	$ 5,514	$ 11,576
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation	18,012	17,916
Amortization	86,992	70,627
Amortization of operating lease right-of-use assets	14,145	10,877
Amortization of deferred debt issuance costs	3,613	2,909
Deferred income taxes	(10,540)	(39,323)
Stock-based compensation expense	22,943	30,328
Other	4,339	2,431
Changes in operating assets and liabilities, net of impact of acquisitions:
Receivables	41,261	34,690
Accounts payable	1,680	(8,414)
Accrued employee compensation	13,585	1,740
Current income taxes	(2,595)	(8,536)
Deferred revenue	14,361	(17,735)
Other current and noncurrent assets and liabilities	(21,252)	(20,148)
Net cash flows from operating activities	192,058	88,938
Cash flows from investing activities:
Purchases of property and equipment	(14,091)	(18,739)
Purchases of software and distribution rights	(21,556)	(18,565)
Acquisition of businesses, net of cash acquired	0	(757,268)
Other	0	(18,474)
Net cash flows from investing activities	(35,647)	(813,046)
Cash flows from financing activities:
Proceeds from issuance of common stock	2,853	2,662
Proceeds from exercises of stock options	6,518	6,677
Repurchase of stock-based compensation awards for tax withholdings	(11,150)	(2,822)
Repurchases of common stock	(28,881)	(35,617)
Proceeds from revolving credit facility	30,000	280,000
Repayment of revolving credit facility	(109,000)	(15,000)
Proceeds from term portion of credit agreement	0	500,000
Repayment of term portion of credit agreement	(29,212)	(19,162)
Payments for debt issuance costs	0	(12,830)
Payments on or proceeds from other debt, net	(10,044)	(8,209)
Net cash flows from financing activities	(148,916)	695,699
Effect of exchange rate fluctuations on cash	4,952	1,488
Net increase (decrease) in cash and cash equivalents	12,447	(26,921)
Cash and cash equivalents, beginning of period	121,398	148,502
Cash and cash equivalents, end of period	133,845	121,581
Supplemental cash flow information
Income taxes paid	19,733	21,205
Interest paid	$ 46,489	$ 47,741