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Securities - Narrative (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items] |  |  |
Proceeds from sale of available-for-sale debt securities, including legacy securities | $ 217,000,000.0 |  | $ 515,200,000
Gross losses from sale of securities | 12,000,000.0 | $ 3,000,000.0 |
Gross gains from sale of securities |  | 25,000 |
Unrealized losses | 211,338,000 | 217,714,000 |
Fair value of mortgage backed securities of government sponsored entities | 1,696,572,000 | 1,669,656,000 |
Held-to-maturity securities, allowance for credit loss | 0 |  |
Other assets of Federal Home Loan Bank and Federal Reserve Bank | 77,300,000 | 67,700,000 |
Accrued interest receivable on AFS debt securities | 9,200,000 | 7,900,000 |
Accrued interest receivable on HTM debt securities | $ 1,000,000.0 | $ 1,100,000 |
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Other assets | Other assets |
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Other assets | Other assets |
Shares held (in shares) | 85,567,712 | 84,861,498 |
Proceeds from sale of Visa Class B shares | $ 4,104,000 | $ 0 | 0
Common Class B | Visa |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Shares held (in shares) |  | 11,330 |
Proceeds from sale of Visa Class B shares | 4,100,000 |  |
Asset Pledged as Collateral |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Securities pledged as collateral | 1,400,000,000 |  |
Other Debt Securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Proceeds from sale of available-for-sale debt securities, including legacy securities |  | $ 91,300,000 |
Unrealized losses |  | 101,000 |
Fair value of mortgage backed securities of government sponsored entities |  | 10,579,000 |
CRA - qualified debt securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Gross losses from sale of securities | 100,000 |  | $ 1,100,000
Gross gains from sale of securities |  | 42,000 |
Equity securities | 13,500,000 | 13,600,000 |
U.S. Treasury securities and obligations of U.S. government agencies |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Unrealized losses | 522,000 | 478,000 |
Fair value of mortgage backed securities of government sponsored entities | 22,885,000 | 28,527,000 |
Allowance for credit losses on AFS debt securities | 0 |  |
Mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Unrealized losses | 200,800,000 |  |
Fair value of mortgage backed securities of government sponsored entities | 1,500,000,000 |  |
Allowance for credit losses on AFS debt securities | 0 |  |
Private mortgage-backed securities and collateralized mortgage obligations |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Unrealized losses | 8,382,000 | 10,911,000 |
Fair value of mortgage backed securities of government sponsored entities | 108,420,000 | 123,420,000 |
Allowance for credit losses on AFS debt securities | $ 0 |  |
Average credit support percentage | 22.00% |  |
Private label residential securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Unrealized losses | $ 8,200,000 |  |
Fair value of mortgage backed securities of government sponsored entities | 99,000,000.0 |  |
Private label commercial securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Unrealized losses | 200,000 |  |
Fair value of mortgage backed securities of government sponsored entities | 9,400,000 |  |
Collateralized loan obligations |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Unrealized losses | 166,000 | 1,411,000 |
Fair value of mortgage backed securities of government sponsored entities | 51,006,000 | 292,632,000 |
Allowance for credit losses on AFS debt securities | $ 0 |  |
Collateralized loan obligations | Standard & Poor's, AAA Rating |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Number of positions held, percentage of total | 36.00% |  |
Collateralized loan obligations | Standard & Poor's, AA Rating |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Number of positions held, percentage of total | 31.00% |  |
Obligations of state and political subdivisions |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Unrealized losses | $ 1,449,000 | 1,096,000 |
Fair value of mortgage backed securities of government sponsored entities | 5,690,000 | 9,390,000 |
Allowance for credit losses on AFS debt securities | $ 0 |  |
Professional Holding Corp. |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Proceeds from sale of available-for-sale debt securities, including legacy securities |  | $ 22,100,000 |

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