Securities - Securities Available for Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Amortized cost	$ 659,783	$ 797,191
Gross Unrealized Gains	1,733	14,179
Gross Unrealized Losses	(62,803)	(34,929)
Fair value	598,713	776,441
Asset Pledged as Collateral
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Fair value	96,200	254,300
U.S. Treasury Securities
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Amortized cost		155,863
Gross Unrealized Losses		(9,657)
Fair value		146,206
Municipal Bonds
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Amortized cost	319,141	242,995
Gross Unrealized Gains	51	8,686
Gross Unrealized Losses	(40,932)	(12,513)
Fair value	278,260	239,168
Mortgage-Backed Securities
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Amortized cost	228,684	252,291
Gross Unrealized Gains	24	3,442
Gross Unrealized Losses	(19,382)	(10,061)
Fair value	209,326	245,672
Corporate Securities
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Amortized cost	81,973	93,080
Gross Unrealized Gains	1,572	1,958
Gross Unrealized Losses	(2,459)	(2,631)
Fair value	81,086	92,407
U.S. Government Agency Securities
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Amortized cost	6,256	8,664
Gross Unrealized Gains	86	73
Gross Unrealized Losses	(20)	(30)
Fair value	6,322	8,707
Asset-Backed Securities
The amortized cost and estimated fair value of securities with gross unrealized gains and losses
Amortized cost	23,729	44,298
Gross Unrealized Gains		20
Gross Unrealized Losses	(10)	(37)
Fair value	$ 23,719	$ 44,281

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).

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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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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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/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477657/942-210-S45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478478/942-210-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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-SubTopic 30
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-Section 45
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-Publisher FASB
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