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Auto Loans Receivable - Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Auto Loans Receivable |  |
Auto loans receivable, Originated in current year | $ 180.2 | $ 198.1
Auto loans receivable, Originated in year before current year | 95.5 | 97.8
Auto loans receivable, Originated two years before current year | 60.2 | 39.7
Auto loans receivable, Originated three years before current year | 21.1 | 31.5
Auto loans receivable, Originated four years before current year | 13.9 | 9.0
Auto loans receivable, Originated five years or more before current year | 2.7 | 0.9
Total auto loans receivable | 373.6 | 377.0
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |
Current-period gross write-offs, 2023 origination | 4.5 |
Current-period gross write-offs, 2022 origination | 27.3 |
Current-period gross write-offs, 2021 origination | 12.5 |
Current-period gross write-offs, 2020 origination | 3.7 |
Current-period gross write-offs, 2019 origination | 2.1 |
Current-period gross write-offs, Prior to 2019 origination | 0.6 |
Current-period gross write-offs | 50.7 |
Platinum |  |
Auto Loans Receivable |  |
Auto loans receivable, Originated in current year | 70.4 | 21.9
Auto loans receivable, Originated in year before current year | 16.5 | 12.9
Auto loans receivable, Originated two years before current year | 9.2 | 6.4
Auto loans receivable, Originated three years before current year | 4.0 | 7.4
Auto loans receivable, Originated four years before current year | 4.0 | 2.2
Auto loans receivable, Originated five years or more before current year | 0.7 | 0.2
Total auto loans receivable | 104.8 | 51.0
Gold |  |
Auto Loans Receivable |  |
Auto loans receivable, Originated in current year | 52.8 | 53.7
Auto loans receivable, Originated in year before current year | 39.8 | 30.0
Auto loans receivable, Originated two years before current year | 21.0 | 12.9
Auto loans receivable, Originated three years before current year | 8.2 | 10.6
Auto loans receivable, Originated four years before current year | 5.8 | 3.2
Auto loans receivable, Originated five years or more before current year | 1.2 | 0.4
Total auto loans receivable | 128.8 | 110.8
Silver |  |
Auto Loans Receivable |  |
Auto loans receivable, Originated in current year | 50.4 | 61.9
Auto loans receivable, Originated in year before current year | 37.4 | 29.8
Auto loans receivable, Originated two years before current year | 19.2 | 10.4
Auto loans receivable, Originated three years before current year | 6.3 | 8.0
Auto loans receivable, Originated four years before current year | 3.9 | 1.9
Auto loans receivable, Originated five years or more before current year | 0.6 | 0.1
Total auto loans receivable | 117.8 | 112.1
Bronze |  |
Auto Loans Receivable |  |
Auto loans receivable, Originated in current year | 6.2 | 41.4
Auto loans receivable, Originated in year before current year | 1.4 | 17.1
Auto loans receivable, Originated two years before current year | 7.3 | 7.4
Auto loans receivable, Originated three years before current year | 1.9 | 3.7
Auto loans receivable, Originated four years before current year | 0.1 | 1.0
Auto loans receivable, Originated five years or more before current year | 0.1 | 0.1
Total auto loans receivable | 17.0 | 70.7
Copper |  |
Auto Loans Receivable |  |
Auto loans receivable, Originated in current year | 0.4 | 19.2
Auto loans receivable, Originated in year before current year | 0.4 | 8.0
Auto loans receivable, Originated two years before current year | 3.5 | 2.6
Auto loans receivable, Originated three years before current year | 0.7 | 1.8
Auto loans receivable, Originated four years before current year | 0.1 | 0.7
Auto loans receivable, Originated five years or more before current year | 0.1 | 0.1
Total auto loans receivable | $ 5.2 | $ 32.4

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