v3.25.4
Investment Securities (Tables)
 12 Months Ended
Dec. 31, 2025
Investments, Debt and Equity Securities [Abstract]  
Schedule of Investment Securities The table below presents the balances of investment securities available-for-sale measured at fair value on a recurring basis. The amortized cost, gross unrealized gains, gross unrealized losses and fair value of debt and equity investment securities are summarized as follows:
December 31, 2025
(In thousands)Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Fair Value
State and political subdivisions $247,716 $3,228 $(10,733)$240,211 
Mortgage-backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises503,599 2,144 (27,047)478,696 
Corporate bonds30,895 — (1,999)28,896 
Asset backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises23,294 — (325)22,969 
Total $805,504 $5,372 $(40,104)$770,772 
December 31, 2024
(In thousands)Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Fair Value
State and political subdivisions$188,933 $4 $(16,973)$171,964 
Mortgage-backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises267,359 11 (34,095)233,275 
Corporate bonds95,841 3 (8,058)87,786 
Asset backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises35,575 — (579)34,996 
Total $587,708 $18 $(59,705)$528,021 
Unrealized Gain (Loss) on Investments The fair values of securities with unrealized losses are as follows:
December 31, 2025
Less than 12 months12 months or moreTotal
(In thousands)Estimated
Fair Value		 Unrealized
Losses		 Estimated
Fair Value		Unrealized
Losses		 Estimated
Fair Value		 Unrealized
Losses
State and political subdivisions $— $— $139,379 $10,733 $139,379 $10,733 
Mortgage-backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises148,111 1,733 155,353 25,314 303,464 27,047 
Corporate bonds— — 28,896 1,999 28,896 1,999 
Asset backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises— — 22,969 325 22,969 325 
Total $148,111 $1,733 $346,597 $38,371 $494,708 $40,104 
December 31, 2024
Less than 12 months12 months or moreTotal
(In thousands)Estimated
Fair Value		 Unrealized
Losses		 Estimated
Fair Value		Unrealized
Losses		 Estimated
Fair Value		 Unrealized
Losses
State and political subdivisions $4,082 $8 $163,893 $16,964 $167,975 $16,972 
Mortgage-backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises85,272 2,086 139,676 32,009 224,948 34,095 
Corporate bonds7,901 99 66,860 7,960 74,761 8,059 
Asset backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises— — 30,575 579 30,575 579 
Total $97,255 $2,193 $401,004 $57,512 $498,259 $59,705 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
The amortized cost and fair value of debt and equity investment securities by contractual maturity are shown in the following table. Expected maturities may differ from contractual maturities because borrowers have the right to prepay obligations with or without prepayment penalties.
December 31, 2025
(In thousands)Amortized CostFair Value
Due in 1 year or less
$6,757 $6,755 
Due after 1 year through 5 years
73,493 70,979 
Due after 5 years through 10 years
160,264 149,204 
Due after 10 years
564,990 543,834 
Total $805,504 $770,772