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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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FINANCE RECEIVABLES - Schedule of Finance Receivables, Net (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total finance receivables	$ 3,886.0	$ 3,348.7
Less: Allowance for finance receivable losses	(120.5)	(106.4)	$ (103.0)	$ (69.3)
Finance receivables, net	3,765.5	3,242.3
Asset-backed term funding
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total finance receivables	2,267.8	2,146.5
Warehouse facilities
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total finance receivables	1,332.5	749.3
Other managed receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total finance receivables	$ 285.7	$ 452.9