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Investment Securities - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Federal Reserve and Federal Home Loan Bank stock	$ 51,467		$ 51,763
Allowance for credit losses	0		22
HTM Allowance for credit losses	(1,275)		$ (1,306)
Proceeds from sales and calls of investment securities	50,100	$ 27,100
Debt securities, available-for-sale, realized gain	5	4
Debt securities, available-for-sale, realized loss	$ 1	$ 0
Holdings of securities of any one issuer	0.00%		0.00%
Collateral Pledged
Debt Securities, Available-for-sale [Line Items]
Available-for-sale securities pledged as collateral	$ 626,800		$ 369,100
Other Assets
Debt Securities, Available-for-sale [Line Items]
Accrued interest on available for sale securities	6,700		6,600
Residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Unrealized gain (loss)	43,200		44,800
Allowance for credit losses	$ 0		$ 0

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