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Auto Loans Receivable - Financing Receivable, Past Due (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
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Financing Receivable, Past Due [Line Items] |  |
Total auto loans receivable | $ 755.5 | $ 451.2
Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total auto loans receivable | 28.5 | 29.2
31-60 Days |  |
Financing Receivable, Past Due [Line Items] |  |
Total auto loans receivable | 20.6 | 20.7
61-90 Days |  |
Financing Receivable, Past Due [Line Items] |  |
Total auto loans receivable | 5.3 | 5.4
Greater than 90 Days |  |
Financing Receivable, Past Due [Line Items] |  |
Total auto loans receivable | 2.6 | 3.1
Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total auto loans receivable | $ 727.0 | $ 422.0

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