Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ 324,367	$ 285,537
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	208,483	208,679
Amortization of operating lease right of use assets	25,555
Provisions for cardholder losses	25,540	34,433
Share-based compensation	22,214	20,524
Provisions for bad debt expenses and billing adjustments	5,587	5,170
Charges for transaction processing provisions	1,319	3,177
Amortization of debt issuance costs	2,652	2,362
Dividends received from equity investments		892
Loss (gain) on foreign currency	287	(107)
Amortization of bond discount	557	482
(Gain) Loss on disposal of equipment, net	(801)	32
Deferred income tax expense	21,258	18,657
Change in value of equity investments	(5,196)
Equity in income of equity investments	(23,444)	(22,929)
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	(69,011)	(17,489)
Contract assets and contract liabilities	(13,965)	(8,797)
Contract cost assets	(3,214)	2,989
Prepaid expenses, other current assets and other long-term assets	(52,859)	5,111
Accounts payable	(9,156)	(3,368)
Accrued salaries and employee benefits	(38,282)	(38,784)
Other current liabilities and other long-term liabilities	(26,461)	(25,978)
Net cash provided by operating activities	395,430	470,593
Cash flows from investing activities:
Additions to licensed computer software from vendors	(61,209)	(19,216)
Purchases of property and equipment	(30,844)	(48,608)
Additions to internally developed computer software	(24,817)	(19,934)
Cash used in acquisitions, net of cash acquired		(1,051,629)
Other investing activities	(2,700)	(4,119)
Net cash used in investing activities	(119,570)	(1,143,506)
Cash flows from financing activities:
Principal payments on long-term borrowings, finance lease obligations and license agreements	(299,499)	(2,626,534)
Purchase of noncontrolling interest		(126,000)
Dividends paid on common stock	(46,534)	(47,190)
Subsidiary dividends paid to noncontrolling shareholders		(3,778)
Repurchase of common stock under plans and tax withholding	(400,023)	(82)
Debt issuance costs		(15,979)
Proceeds from borrowings of long-term debt	450,000	3,477,000
Proceeds from exercise of stock options	6,911	29,289
Net cash provided by (used in) financing activities	(289,145)	686,726
Cash, cash equivalents and restricted cash:
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(332)	(4,143)
Net increase (decrease) in cash, cash equivalents and restricted cash	(13,617)	9,670
Cash, cash equivalents and restricted cash at beginning of period	474,279	451,370
Cash, cash equivalents and restricted cash at end of period	460,662	461,040
Supplemental cash flow information:
Interest paid	85,404	71,778
Income taxes paid, net	$ 59,411	$ 21,475