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Securities - Narrative (Details)	Mar. 31, 2025 USD ($) investment	Dec. 31, 2024 USD ($) investment	Dec. 31, 2009 USD ($)
Debt Securities, Available-for-sale [Line Items]
Carrying value of securities pledged to secure repurchase agreements, public and trust deposits and other by law	$ 1,562,555,000	$ 1,065,880,000
Securities, available-for-sale, at fair value, allowance for credit losses	0	0
Accrued interest receivable on available-for-sale debt securities	7,757,000	8,110,000
Original amount in non-controlling investment security in a single banking organization	353,000	$ 353,000	$ 1,350,000
Additional impairment on equity securities recognized through earnings	$ 0		$ 997,000
Equity securities
Debt Securities, Available-for-sale [Line Items]
Number of non-controlling investments in a single banking organization | investment	1	1

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Carrying value of securities sold under agreements to repurchase and deposits received for securities loaned.

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