CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net income	$ 55,082	$ 45,446
Adjustments to reconcile net income to net cash provided by operating activities-
Depreciation	18,604	17,016
Amortization	34,314	32,998
Amortization of original issue discount	2,350	2,221
Asset impairment	415	10,438
(Gain)/loss on short-term investments	51	(120)
Loss on extinguishment of debt	132
Loss on acquisition of controlling interest	6,180
Deferred income taxes	2,188	3,844
Stock-based compensation	15,304	14,088
Changes in operating assets and liabilities, net of acquired amounts:
Trade accounts receivable, net	(11,960)	(13,322)
Other current and non-current assets and liabilities	(13,912)	(8,784)
Income taxes payable/receivable	(6,111)	1,542
Trade accounts payable and accrued liabilities	(18,329)	(24,618)
Deferred revenue	4,001	8,736
Net cash provided by operating activities	88,309	116,129
Cash flows from investing activities:
Purchases of software, property and equipment	(22,531)	(24,201)
Purchases of short-term investments	(57,734)	(49,100)
Proceeds from sale/maturity of short-term investments	80,092	37,743
Acquisition of and investments in business, net of cash acquired	(51,111)	(11,491)
Net cash used in investing activities	(51,284)	(47,049)
Cash flows from financing activities:
Proceeds from issuance of common stock	1,926	1,838
Payment of cash dividends	(24,653)	(23,441)
Repurchase of common stock	(25,568)	(19,926)
Proceeds from long-term debt	150,000
Payments on long-term debt	(126,563)	(7,500)
Payments of deferred financing costs	(3,000)
Settlement and merchant reserve activity	(7,735)	(47,602)
Net cash used in financing activities	(35,593)	(96,631)
Effect of exchange rate fluctuations on cash, cash equivalents and restricted cash	(1,872)	(1,653)
Net decrease in cash, cash equivalents and restricted cash	(440)	(29,204)
Cash, cash equivalents and restricted cash, beginning of period	354,730	337,654
Cash, cash equivalents and restricted cash, end of period	354,290	308,450
Cash paid during the period for-
Interest	11,947	12,941
Income taxes	25,688	14,756
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	195,365	174,489
Settlement and merchant reserve assets	158,925	133,961
Cash, cash equivalents and restricted cash, end of period	$ 354,290	$ 308,450