Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Operating activities
Net income	$ 726,033	$ 729,008
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	82,028	67,066
Stock-based compensation	89,917	100,828
Provision for credit losses on accounts and other receivables	103,495	89,976
Amortization of deferred financing costs and discounts	5,417	5,949
Amortization of intangible assets and premium on receivables	170,630	165,423
Loss on extinguishment of debt	0	1,934
Deferred income taxes	(18,911)	(7,987)
Gain on disposition of business, net	(13,712)	0
Other non-cash operating expense, net	491	601
Changes in operating assets and liabilities (net of acquisitions/disposition):
Accounts and other receivables	(809,487)	(950,237)
Prepaid expenses and other current assets	114,237	(25,570)
Derivative assets and liabilities, net	(7,939)	10,756
Other assets	33,090	(16,154)
Accounts payable, accrued expenses and customer deposits	428,580	267,014
Net cash provided by operating activities	903,869	438,607
Investing activities
Acquisitions, net of cash acquired	(429,914)	(160,117)
Purchases of property and equipment	(117,158)	(107,631)
Proceeds from disposal of a business, net of cash disposed	197,025	0
Other	4,401	0
Net cash used in investing activities	(345,646)	(267,748)
Financing activities
Proceeds from issuance of common stock	101,202	22,109
Repurchase of common stock	(546,910)	(1,295,644)
Borrowings on securitization facility, net	109,000	364,000
Deferred financing costs	(238)	(10,282)
Proceeds from notes payable	0	3,000,000
Principal payments on notes payable	(70,500)	(2,800,500)
Borrowings from revolver	6,495,000	4,338,000
Payments on revolver	(6,770,000)	(3,658,000)
Borrowings on swing line of credit, net	180,723	194
Other	264	0
Net cash used in financing activities	(501,459)	(40,123)
Effect of foreign currency exchange rates on cash	(30,431)	(80,551)
Net increase in cash and cash equivalents and restricted cash	26,333	50,185
Cash and cash equivalents and restricted cash, beginning of period	2,289,180	2,250,695
Cash and cash equivalents and restricted cash, end of period	2,315,513	2,300,880
Supplemental cash flow information
Cash paid for interest	327,099	138,310
Cash paid for income taxes	$ 319,764	$ 309,567