Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating activities
Net income	$ 305,548	$ 433,758
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	31,607	30,640
Stock-based compensation	23,164	30,847
Provision for losses on accounts and other receivables	139,000	40,142
Amortization of deferred financing costs and discounts	2,886	2,428
Amortization of intangible assets and premium on receivables	95,031	107,713
Deferred income taxes	(8,730)	(64,883)
Investment (gain) loss	(31,338)	15,660
Other non-cash operating income	(268)	(1,579)
Changes in operating assets and liabilities (net of acquisitions/dispositions):
Accounts and other receivables	359,685	(418,806)
Prepaid expenses and other current assets	46,216	8,154
Other assets	828	(17,286)
Accounts payable, accrued expenses and customer deposits	(161,461)	383,233
Net cash provided by operating activities	802,168	550,021
Investing activities
Acquisitions, net of cash acquired	(492)	(250,926)
Purchases of property and equipment	(36,870)	(31,975)
Net cash used in investing activities	(37,362)	(282,901)
Financing activities
Proceeds from issuance of common stock	92,977	56,950
Repurchase of common stock	(557,361)	(4,024)
(Payments) borrowings on securitization facility, net	(316,973)
(Payments) borrowings on securitization facility, net		88,000
Deferred financing costs paid and debt discount	(974)	(352)
Principal payments on notes payable	(92,910)	(64,875)
Borrowings from revolver	573,500	765,709
Payments on revolver	(726,644)	(1,027,468)
(Payments) borrowings on swing line of credit, net	(3,879)
(Payments) borrowings on swing line of credit, net		34,639
Other	(169)	(125)
Net cash used in financing activities	(1,032,433)	(151,546)
Effect of foreign currency exchange rates on cash	(216,264)	8,159
Net (decrease) increase in cash and cash equivalents and restricted cash	(483,891)	123,733
Cash and cash equivalents and restricted cash, beginning of period	1,675,237	1,364,893
Cash and cash equivalents and restricted cash, end of period	1,191,346	1,488,626
Supplemental cash flow information
Cash paid for interest	68,454	90,559
Cash paid for income taxes	$ 56,790	$ 100,396