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v3.22.2.2

Securities - Narrative (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) | Dec. 31, 2021 USD ($)
Schedule of Investments [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale, Allowance for Credit Loss | $ 0 |  | $ 0 |  | $ 0
Transferred Securities, Unrealized Loss, Before Tax | 96,200,000 |  | 96,200,000 |  | 1,500,000
Securities transferred, Unrealized Loss, Net of Tax | 76,000,000 |  | 76,000,000 |  | 1,200,000
Fair value of securities transferred from AFS to HTM |  |  | 1,070,000,000.00 |  | 0
Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract] |  |  |  |  |
Net gain (loss) on sale of securities AFS | (99,000) | $ 1,381,000 | (3,819,000) | $ 3,399,000 |
Gross realized gains on AFS securities |  |  | 584,000 | 3,500,000 |
Gross realized losses on AFS securities |  |  | 4,400,000 | 71,000 |
Equity investments | 11,052,000 |  | 11,052,000 |  | 11,841,000
Debt Securities, Held-to-maturity, Sale or Transfer of Investment [Abstract] |  |  |  |  |
Sale of HTM portfolio |  |  | 0 | 0 |
Interest receivable | 32,914,000 |  | 32,914,000 |  | 39,145,000
Debt Securities, Held-to-maturity, Nonaccrual | 0 |  | 0 |  | 0
FHLB stock with other-than-temporary impairment | 0 |  | 0 |  |
Other-than-temporarily impaired equity investments | $ 0 |  | $ 0 |  |
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | 811 |  | 811 |  |
State and political subdivisions |  |  |  |  |
Debt Securities, Held-to-maturity, Sale or Transfer of Investment [Abstract] |  |  |  |  |
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, Credit Loss Expense (Reversal) | $ 0 | 0 | $ 0 | 0 |
Corporate bonds and other |  |  |  |  |
Debt Securities, Held-to-maturity, Sale or Transfer of Investment [Abstract] |  |  |  |  |
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, Credit Loss Expense (Reversal) | 0 | $ 0 | 0 | $ 0 |
Asset Pledged as Collateral |  |  |  |  |
Debt Securities, Held-to-maturity, Sale or Transfer of Investment [Abstract] |  |  |  |  |
Debt Securities | 1,580,000,000 |  | 1,580,000,000 |  | 1,610,000,000
Financial Asset, Past Due |  |  |  |  |
Debt Securities, Held-to-maturity, Sale or Transfer of Investment [Abstract] |  |  |  |  |
Securities held to maturity (estimated fair value of $138,879) | 0 |  | 0 |  | 0
Available-for-sale Securities |  |  |  |  |
Debt Securities, Held-to-maturity, Sale or Transfer of Investment [Abstract] |  |  |  |  |
Interest receivable | 11,800,000 |  | 11,800,000 |  | 25,600,000
Held-to-maturity Securities |  |  |  |  |
Debt Securities, Held-to-maturity, Sale or Transfer of Investment [Abstract] |  |  |  |  |
Interest receivable | $ 6,300,000 |  | $ 6,300,000 |  | $ 244,000

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