CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net loss	$ (1,945)	$ (24,427)
Adjustments to reconcile net loss to net cash flows from operating activities:
Depreciation	5,416	5,825
Amortization	28,167	27,997
Amortization of operating lease right-of-use assets	2,345	3,556
Amortization of deferred debt issuance costs	1,182	1,212
Deferred income taxes	(6,078)	(10,413)
Stock-based compensation expense	6,703	6,950
Other	(106)	650
Changes in operating assets and liabilities:
Receivables	76,135	48,699
Accounts payable	(2,808)	(6,087)
Accrued employee compensation	(12,725)	6,985
Deferred revenue	8,152	22,495
Other current and noncurrent assets and liabilities	(34,315)	(25,942)
Net cash flows from operating activities	70,123	57,500
Cash flows from investing activities:
Purchases of property and equipment	(4,346)	(3,597)
Purchases of software and distribution rights	(8,053)	(6,541)
Net cash flows from investing activities	(12,399)	(10,138)
Cash flows from financing activities:
Proceeds from issuance of common stock	1,052	947
Proceeds from exercises of stock options	2,799	400
Repurchase of stock-based compensation awards for tax withholdings	(14,206)	(10,973)
Repurchases of common stock	0	(28,881)
Proceeds from revolving credit facility	0	30,000
Repayment of revolving credit facility	(15,000)	(39,000)
Repayment of term portion of credit agreement	(9,738)	(9,737)
Payments on or proceeds from other debt, net	(3,600)	(3,593)
Net cash flows from financing activities	(38,693)	(60,837)
Effect of exchange rate fluctuations on cash	(41)	11,201
Net increase (decrease) in cash and cash equivalents	18,990	(2,274)
Cash and cash equivalents, beginning of period	165,374	121,398
Cash and cash equivalents, end of period	184,364	119,124
Supplemental cash flow information
Income taxes paid	10,713	6,639
Interest paid	$ 15,954	$ 21,837