Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	[1]	Sep. 30, 2018
Operating activities
Net income	$ 659,563		$ 509,483	[2]
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	46,393		38,174
Stock-based compensation	46,120		54,207
Provision for losses on accounts receivable	54,735		43,520
Amortization of deferred financing costs and discounts	3,741		4,035
Amortization of intangible assets and premium on receivables	159,307		169,204
Deferred income taxes	11,142		(6,334)
Investment loss	15,660		7,147	[2]
Other non-cash operating income	(1,778)		(140)
Changes in operating assets and liabilities (net of acquisitions/dispositions):
Accounts and other receivables	(472,378)		(640,859)
Prepaid expenses and other current assets	(77,836)		(19,618)
Other assets	(26,578)		(19,922)
Accounts payable, accrued expenses and customer deposits	373,044		416,483
Net cash provided by operating activities	791,135		555,380
Investing activities
Acquisitions, net of cash acquired	(334,860)		(3,799)
Purchases of property and equipment	(48,681)		(56,312)
Other	0		(11,192)
Net cash used in investing activities	(383,541)		(71,303)
Financing activities
Proceeds from issuance of common stock	117,627		48,322
Repurchase of common stock	(59,362)		(380,651)
Borrowings on securitization facility, net	106,000		120,000
Deferred financing costs paid and debt discount	(2,421)		(166)
Proceeds from issuance of notes payable	700,000		0
Principal payments on notes payable	(97,313)		(103,500)
Borrowings from revolver	965,709		834,019
Payments on revolver	(1,992,296)		(897,861)
Borrowings on swing line of credit, net	1,775		23,735
Other	(189)		(230)
Net cash used in financing activities	(260,470)		(356,332)
Effect of foreign currency exchange rates on cash	(46,140)		(70,065)
Net increase in cash and cash equivalents and restricted cash	100,984		57,680
Cash and cash equivalents and restricted cash, beginning of period	1,364,893		1,130,870
Cash and cash equivalents and restricted cash, end of period	1,465,877		1,188,550
Supplemental cash flow information
Cash paid for interest	136,850		113,785
Cash paid for income taxes	$ 148,727		$ 162,563

[1] Reflects the impact of the Company's adoption of ASU 2016-02 "Leases", on January 1, 2019, using the modified retrospective transition method. Under this method, financial results reported in periods prior to 2019 are unchanged. Refer to footnote 2.

[2] Reflects reclassifications from previously disclosed amounts to conform to current presentation.