Investment Securities - Schedule of Income Earned on Securities (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Non-taxable:
Total	$ 31,882	$ 47,257
Held-to-maturity
Taxable:
Taxable	0	10,399
Non-taxable:
Non-taxable	0	10,051
Available-for-sale
Taxable:
Taxable	26,311	21,185
Non-taxable:
Non-taxable	$ 5,571	$ 5,622

Interest income, securities, operating, by non-0taxable status [abstract]

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Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities exempt from state, federal and other income tax.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
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Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities subject to state, federal and other income tax.

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Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (c)
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-Topic 220
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