Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash Flows From Operating Activities:
Net income	$ 408.5	$ 740.7
Adjustments to reconcile cash provided by operating activities:
Provision for credit losses	351.1	(17.5)
Depreciation	6.8	7.2
Amortization	12.5	12.5
Provision/(Benefit) for deferred income taxes	3.8	(4.1)
Stock-based compensation	26.9	5.4
Other	0.1	(0.3)
Change in operating assets and liabilities:
Increase in accounts payable and accrued liabilities	44.4	65.5
Decrease in income taxes receivable	80.2	122.0
Decrease in other assets	17.6	6.9
Net cash provided by operating activities	951.9	938.3
Payments to Acquire Debt Securities, Available-for-sale	38.2	31.4
Cash Flows From Investing Activities:
Proceeds from sale of restricted securities available for sale	9.5	12.0
Maturities of restricted securities available for sale	17.9	16.9
Principal collected on Loans receivable	2,670.8	2,907.5
Advances to Dealers	(1,971.9)	(1,626.2)
Purchases of Consumer Loans	(851.4)	(905.3)
Accelerated payments of Dealer Holdback	(35.2)	(36.0)
Payments of Dealer Holdback	(138.7)	(117.2)
Purchases of property and equipment	(1.9)	(6.1)
Net cash provided by (used in) investing activities	(339.1)	214.2
Cash Flows From Financing Activities:
Borrowings under revolving secured line of credit	5,867.3	1,066.4
Repayments under revolving secured line of credit	(5,681.0)	(1,090.1)
Proceeds from secured financing	847.8	1,379.8
Repayments of secured financing	(1,028.9)	(1,355.7)
Payments of debt issuance costs	(7.9)	(12.3)
Repurchase of common stock	(679.2)	(1,093.9)
Proceeds from Issuance of Common Stock	12.4	0.0
Other	17.9	(0.6)
Net cash used in financing activities	(651.6)	(1,106.4)
Net increase (decrease) in cash and cash equivalents and restricted cash and cash equivalents	(38.8)	46.1
Cash and cash equivalents and restricted cash and cash equivalents beginning of period	434.2	396.2
Cash and cash equivalents and restricted cash and cash equivalents end of period	395.4	442.3
Supplemental Disclosure of Cash Flow Information:
Cash paid during the period for interest	105.1	115.9
Cash paid during the period for income taxes, net of refunds	$ 50.0	$ 112.3