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v3.23.3

Loans and Allowance for Credit Losses - Narrative (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 USD ($) loan | Sep. 30, 2022 USD ($) loan | Sep. 30, 2023 USD ($) loan | Sep. 30, 2022 USD ($) loan | Dec. 31, 2022 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loans | $ 16,771,888,000 |  | $ 16,771,888,000 |  | $ 16,142,124,000
Deferred origination fees, net |  |  | 7,700,000 |  | 26,400,000
Financing receivable, accrued interest excluded from amortized costs | 74,300,000 |  | 74,300,000 |  | 65,400,000
Nonaccrual loans with no allowance for credit loss | 9,200,000 |  | 9,200,000 |  | 16,900,000
Number of loan modifications | loan |  | 3 |  | 4 |
Number of investments with prior modification |  | $ 747,000 |  | $ 760,000 |
Combination: Interest Rate Modification and Term Extension | $ 30,702,000 |  | $ 31,353,000 |  |
Number of loan modifications with payment default | loan | 0 |  | 0 |  |
Foreclosed assets and other real estate owned | $ 3,809,000 |  | $ 3,809,000 |  | 2,887,000
Financing receivable, collateral dependent, amount | 129,492,000 |  | $ 129,492,000 |  | 70,926,000
Minimum |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Financing receivable, term of loan |  |  | 1 year |  |
Maximum |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Financing receivable, term of loan |  |  | 3 years |  |
Residential Real Estate |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loans in process of foreclosure, amount | 1,400,000 |  | $ 1,400,000 |  | 3,000,000
OREO Received in Full or Partial Satisfaction of Loans | Residential Real Estate |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Foreclosed assets and other real estate owned | 312,000 |  | 312,000 |  | 853,000
Real Estate |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loans | 13,245,208,000 |  | 13,245,208,000 |  | 12,581,262,000
Combination: Interest Rate Modification and Term Extension | 30,617,000 |  | 30,617,000 |  |
Real Estate | OREO Received in Full or Partial Satisfaction of Loans |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Number of investments with prior modification |  | 0 |  | 0 |
Unfunded Loan Commitment |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Unfunded commitments, allowance for credit loss | 25,600,000 |  | 25,600,000 |  | 41,900,000
Reserve for unfunded commitments, expensed (released) | 11,300,000 | $ 16,000,000 | 16,300,000 | $ 19,500,000 |
Commercial |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loans | $ 2,773,989,000 |  | $ 2,773,989,000 |  | 2,837,913,000
Number of loan modifications | loan | 1 |  | 1 |  |
Combination: Interest Rate Modification and Term Extension | $ 85,000 |  | $ 736,000 |  |
Single family residential | Real Estate |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loans | 2,657,879,000 |  | 2,657,879,000 |  | 2,546,115,000
Financing receivable, collateral dependent, amount | 1,442,000 |  | 1,442,000 |  | 0
Commercial real estate | Real Estate |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Number of loans with subsequent default | loan |  |  |  | 0 |
Paycheck Protection Program Loans |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loans | 5,600,000 |  | 5,600,000 |  | 8,900,000
Other commercial | Real Estate |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loans | 7,565,008,000 |  | 7,565,008,000 |  | 7,468,498,000
Number of loan modifications | loan |  | 3 |  | 4 |
Number of investments with prior modification |  | $ 747,000 |  | $ 760,000 |
Combination: Interest Rate Modification and Term Extension | 30,617,000 |  | 30,617,000 |  |
Charge-off | 9,600,000 |  |  |  |
Financing receivable, collateral dependent, amount | $ 102,384,000 |  | $ 102,384,000 |  | $ 65,450,000

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