Investment securities (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Proceeds from sale of available-for-sale investment securities		$ 65,600
Net gain on available-for-sale securities		$ 81
Preferred Stock, Dividend Rate, Percentage	8.25%
Held-to-maturity, credit loss	$ 0		$ 0
Federal Home Loan Bank of Pittsburgh (FHLB)
Equity securities without readily determinable fair values	7,700		$ 5,200
FNCB
Proceeds from sale of available-for-sale investment securities	241,300
Equity securities without readily determinable fair values	$ 500

Amount of realized gain (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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Amount, excluding accrued interest, of allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity), classified as current.

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Amount of investment in equity security without readily determinable fair value.

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