Investment Securities - Narrative (Details) $ in Thousands	3 Months Ended
Mar. 31, 2024 USD ($) security	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($) security
Investments, Debt and Equity Securities [Abstract]
Debt securities with carrying values, pledged	$ 91,400		$ 89,200
Proceeds from sale of available-for-sale securities	0	$ 0
Accrued interest on investments	$ 1,200		$ 1,400
Number of securities consisted in portfolio \| security	385		385
Number of securities in loss position \| security	370		370
Aggregate fair value of securities in loss position	$ 167,941		$ 172,671
Loss position for 12 months or longer	151,694		155,243
Aggregate unrealized loss	$ 30,078		$ 27,287

Number of securities in available for sale portfolio.

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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).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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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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The value of assets other than financial instruments pledged to provide security to a suppler under a recorded unconditional purchase obligation arrangement.

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