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Borrowings - Short-term borrowings (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Maturity period
Securities sold under agreements to repurchase	$ 175,614,000	$ 205,491,000
Securities sold under agreements to repurchase, weighted average rate	0.13%	1.05%
Federal Funds Purchased	$ 0	$ 0
Short-term borrowings (FHLB advances)	$ 4,700,000	2,600,000
Maximum maturity period of short-term debt	1 year
Debt due within 12 months		$ 6,000,000.0
Minimum
Maturity period
Short-term borrowings, mature period	1 day
Maximum
Maturity period
Short-term borrowings, mature period	90 days

X

- Definition

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

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- Definition

Represents the maximum maturity period of short-term debt.

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- Definition

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

+ References

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- Definition

Weighted average interest rate of debt outstanding.

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- Definition

Amount of short term borrowing where a bank borrows, at the federal funds rate, from another bank.

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- Definition

Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal 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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