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Loans - Schedule of Financing Receivable, Current, Allowance for Credit Loss (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Balance at beginning of period | $ 61,157 | $ 56,241 | $ 59,379 | $ 54,658 | $ 54,658
Additions (deductions) |  |  |  |  |
Provision for credit losses | 2,032 | 1,510 | 4,252 | 3,400 |
Recoveries credited to the allowance | 473 | 711 | 1,604 | 2,106 |
Loans charged against the allowance | (1,203) | (1,018) | (2,776) | (2,720) |
Balance at end of period | 62,459 | 57,444 | 62,459 | 57,444 | 59,379
Commercial |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Balance at beginning of period | 25,890 | 18,979 | 22,872 | 16,724 | 16,724
Additions (deductions) |  |  |  |  |
Provision for credit losses | 2,587 | 1,082 | 5,617 | 3,199 |
Recoveries credited to the allowance | 7 | 101 | 73 | 239 |
Loans charged against the allowance | 0 | 0 | (78) | 0 | 0
Balance at end of period | 28,484 | 20,162 | 28,484 | 20,162 | 22,872
Mortgage |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Balance at beginning of period | 20,752 | 20,731 | 22,317 | 21,386 | 21,386
Additions (deductions) |  |  |  |  |
Provision for credit losses | (231) | (1,004) | (1,850) | (1,524) |
Recoveries credited to the allowance | 35 | 131 | 205 | 270 |
Loans charged against the allowance | (10) | (26) | (126) | (300) | (300)
Balance at end of period | 20,546 | 19,832 | 20,546 | 19,832 | 22,317
Installment |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Balance at beginning of period | 3,015 | 3,901 | 3,040 | 4,126 | 4,126
Additions (deductions) |  |  |  |  |
Provision for credit losses | 470 | 1,156 | 929 | 1,241 |
Recoveries credited to the allowance | 431 | 479 | 1,326 | 1,597 |
Loans charged against the allowance | (1,193) | (992) | (2,572) | (2,420) | (2,420)
Balance at end of period | 2,723 | 4,544 | 2,723 | 4,544 | 3,040
Subjective Allocation |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Balance at beginning of period | 11,500 | 12,630 | 11,150 | 12,422 | 12,422
Additions (deductions) |  |  |  |  |
Provision for credit losses | (794) | 276 | (444) | 484 |
Recoveries credited to the allowance | 0 | 0 | 0 | 0 |
Loans charged against the allowance | 0 | 0 | 0 | 0 |
Balance at end of period | $ 10,706 | $ 12,906 | $ 10,706 | $ 12,906 | $ 11,150

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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
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