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Accounts Receivable - Auto Loan and Lease Receivables (Details) - USD ($) $ in Millions | Mar. 31, 2022 | Dec. 31, 2021 | Mar. 31, 2021
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total Auto loan and lease receivables | $ 1,817.7 |  | $ 1,529.9
Less: Allowance for loan and lease losses | (18.7) |  | (17.3)
Auto loan and lease receivables |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total Auto loan and lease receivables | 1,036.4 | $ 829.2 | $ 829.2
Less: Allowance for loan and lease losses | (29.4) | (25.0) |
Auto loan and lease receivables, net | $ 1,007.0 | $ 804.2 |

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