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Loans, Lease Receivables, and Allowance for Credit Losses - Additional Information (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Financing Receivable, Recorded Investment |  |  |  |  |
Guaranteed portion of SBA loans sold to third parties | $ 5,200,000 | $ 4,600,000 | $ 17,400,000 | $ 10,300,000 |
Amount of outstanding SBA loans sold | 83,500,000 |  | 83,500,000 |  | $ 79,400,000
Loans and leases transferred to third parties principal amount | 18,900,000 | $ 31,400,000 | 95,900,000 | $ 90,000,000 |
Gain (loss) recognized on participation interest in originated loans |  |  | 0 |  |
Amount of loan participation purchased | 16,100,000 |  | 16,100,000 |  | 5,300,000
Amount of outstanding loans transferred to third parties as loan participations | 393,800,000 |  | 393,800,000 |  | 373,100,000
Amount of partial ownership in loan participations transferred | $ 454,800,000 |  | $ 454,800,000 |  | $ 423,700,000

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