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Finance Receivables - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Retail |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Approved but unfunded retail loans | $ 160.4 | $ 154.8
Threshold period past due to be charged-off | 120 days |
Wholesale |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Unused lines of credit, wholesale | $ 1,140.0 | $ 1,210.0
Financing receivable on non-accrual status | $ 5.0 |
Finance receivables | Geographic Concentration Risk | Texas |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Concentration risk (as a percent) | 11.00% | 11.00%
Greater than 90 Days Past Due | Wholesale |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable on non-accrual status | $ 2.6 |

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