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Securities - Carrying value of other investment securities (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Other investment securities
Carrying Value	$ 370,924	$ 353,428
Federal Home Loan Bank stock
Other investment securities
Carrying Value	18,086	18,086
Federal Reserve Bank stock
Other investment securities
Carrying Value	234,374	234,374
Investment in unconsolidated subsidiaries
Other investment securities
Carrying Value	5,287	5,287
Other investment securities
Other investment securities
Carrying Value	$ 113,177	$ 95,681

X

- Definition

Amount of investments classified as other.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(3)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

+ Details

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Period Type:	instant

X

- References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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