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Federal Funds Available From Correspondent Banks, Maturity Term

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of long-term debt classified as other, payable within one year or the operating cycle, if longer.

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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.

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Short-Term Borrowings - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
	Apr. 03, 2019	Dec. 31, 2023	Dec. 31, 2022
Short-term Borrowings
Federal funds available from correspondent banks		$ 320.7
Minimum
Short-term Borrowings
Federal funds maturity term		1 day
Maximum
Short-term Borrowings
Federal funds maturity term		90 days
Bank Term Funding Program
Short-term Borrowings
Line of credit facility, maximum borrowing capacity		$ 133.0
Debt term		1 year
Bank Term Funding Program \| One-Year Overnight Index Swap Rate
Short-term Borrowings
Basis spread on variable rate		0.10%
US Bank Loan Agreement
Short-term Borrowings
Line of credit facility, maximum borrowing capacity		$ 30.0
Debt term	1 year
FHLB Advances \| Matured Debt
Short-term Borrowings
Long-term borrowings reclassified to short-term based on maturity date		$ 60.0	$ 55.0