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Securities - Securities Available for Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Amortized cost	$ 851,647	$ 817,664
Gross Unrealized Gains	11,447	2,245
Gross Unrealized Losses	(36,621)	(51,662)
Fair value	826,473	768,247
Asset Pledged as Collateral
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Fair value	264,900	289,900
U.S. Treasury Securities
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Amortized cost	155,902	179,835
Gross Unrealized Gains		3
Gross Unrealized Losses	(8,703)	(12,090)
Fair value	147,199	167,748
Municipal Bonds
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Amortized cost	247,471	139,891
Gross Unrealized Gains	6,614	23
Gross Unrealized Losses	(13,538)	(17,649)
Fair value	240,547	122,265
Mortgage-Backed Securities
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Amortized cost	267,171	259,833
Gross Unrealized Gains	2,877	882
Gross Unrealized Losses	(10,899)	(15,825)
Fair value	259,149	244,890
Corporate Securities
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Amortized cost	109,613	139,161
Gross Unrealized Gains	1,791	1,041
Gross Unrealized Losses	(3,421)	(6,016)
Fair value	107,983	134,186
U.S. Government Agency Securities
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Amortized cost	9,803	22,053
Gross Unrealized Gains	73	85
Gross Unrealized Losses	(41)	(56)
Fair value	9,835	22,082
Asset-Backed Securities
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Amortized cost	61,687	76,891
Gross Unrealized Gains	92	211
Gross Unrealized Losses	(19)	(26)
Fair value	$ 61,760	$ 77,076

X

- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

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- Definition

Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

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- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

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- Definition

Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

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