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Investment Securities - Textual (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Investment Securities, Classified as Trading	$ 0		$ 0
Investment Securities, Holdings Greater than 10%	0		0
Investment Securities, Available for Sale, ACL	0		0
Investment Securities, Held to Maturity, Nonaccrual	0		0
Investment Securities, Held to Maturity, Past Due	0		0
Investment Securities, Held to Maturity, ACL	0		0
Investment Securities, Available for Sale, Accrued Interest Receivable	3,800		4,800
Investment Securities, Held to Maturity, Accrued Interest Receivable	2,300		$ 2,400
Investment Securities, Available for Sale, Accrued Interest Receivable Reversed	0	$ 0
Investment Securities, Held to Maturity, Accrued Interest Receivable Reversed	0	$ 0
Common Class B
Non-Marketable Securities, Visa U.S.A Class B Common Stock, Shares Held (in shares)			6,549
Non-Marketable Securities, Visa U.S.A Class B Common Stock, Gain on Sale of Shares	$ 1,600

X

- Definition

Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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-Topic 320
-SubTopic 10
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-Section 50
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- Definition

Amount of writeoff of accrued interest on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), recognized by reversing interest income.

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Amount of allowance for credit loss on 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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- Definition

Amount of investment in debt security measured at amortized cost (held-to-maturity), 90 days or more past due and still accruing.

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Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at amortized cost (held-to-maturity).

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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 investment in debt security measured at amortized cost (held-to-maturity) on nonaccrual status.

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This item represents disclosure of all significant concentrations of credit risk or market risk arising from the subject financial instrument (as defined), whether from an individual counterparty or groups of counterparties.

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- Definition

The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale.

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Number of shares of investment owned.

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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