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Investment in ECN Capital Corporation - Additional Information (Detail) - USD ($) $ in Thousands, shares in Millions | 1 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Apr. 01, 2023
Schedule of Equity Method Investments [Line Items] |  |
Investment in the common stock | $ 1,587 | $ 1,585
Carrying amount of preferred shares | 64,500 |
Preferred Stock [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Aggregate cost of investments | 2,500 |
ECN Capital Corp. |  |
Schedule of Equity Method Investments [Line Items] |  |
Equity investments in ECN | $ 137,800 |
Common shares purchased | 33.6 |
Percentage of common stock outstanding | 12.00% |
Cash dividend on preferred Shares | 4.00% |
Voting shares | 19.90% |
Investment in the common stock | $ 78,900 |
Aggregate cost of investments | 3,100 |
Commitments on retailer floor plan loans outstanding | $ 55,700 |
ECN Capital Corp. | Mandatory convertible preferred shares |  |
Schedule of Equity Method Investments [Line Items] |  |
Number of shares issued | 27.5 |

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