Securities - Additional Information (Details) - USD ($)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Debt securities, available for sale portfolio to the held to maturity portfolio	$ 882,927,000
Debt and equity securities, unrealized loss	99,675,000
Unrealized loss, operating, after tax	74,307,000
Gain (loss) recognized for transfer of Available for sale securities	0
Net Proceeds	0	$ 176,455,000	$ 44,906,000
Allowance for credit losses - held to maturity securities	$ 32,000	32,000
Amortized cost of debt securities held to maturity rated A or higher by rating agencies (percent)	99.99%
Secure government, public and trust deposits
Debt Securities, Available-for-sale [Line Items]
Available for sale securities pledged as collateral	$ 824,417,000	607,681,000
Short-term borrowings
Debt Securities, Available-for-sale [Line Items]
Available for sale securities pledged as collateral	$ 18,184,000	$ 21,493,000

Debt Securities, Available-for-sale, Transfer, Realized Gain (Loss)

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Debt Securities, Held To maturity, In Amortized Cost Of Rated Agencies' Percentage

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- Definition

Amount of unrealized gain (loss) on investment in debt and equity securities.

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No definition available.

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- Definition

Amount of restricted investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of allowance for credit loss for debt security measured at amortized cost (held-to-maturity).

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Amount of credit loss expense on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) transferred into available-for-sale out of investment in debt security measured at amortized cost (held-to-maturity).

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Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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