Investment Securities (Tables)

6 Months Ended

Jun. 30, 2026

Investments, Debt and Equity Securities [Abstract]

Investment securities at June 30, 2026 and at December 31, 2025, were as follows:


(In thousands)	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses		Fair Value
June 30, 2026:
Debt Securities Available-for-Sale
Obligations of U.S. Government sponsored entities	$	99,757	$	—	$	561	$	99,196
Obligations of states and political subdivisions	299,109		2,430		10,037		291,502
U.S. Government sponsored entities' asset-backed securities	858,811		540		38,257		821,094
Collateralized loan obligations	29,443		9		36		29,416
Corporate debt securities	21,100		186		487		20,799
Total	$	1,308,220	$	3,165	$	49,378	$	1,262,007


(In thousands)	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses		Fair Value
December 31, 2025:
Debt Securities Available-for-Sale
Obligations of states and political subdivisions	$	220,285	$	1,808	$	10,270	$	211,823
U.S. Government sponsored entities' asset-backed securities	432,051		1,142		33,229		399,964
Collateralized loan obligations	56,200		21		78		56,143
Corporate debt securities	21,076		188		526		20,738
Total	$	729,612	$	3,159	$	44,103	$	688,668

Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value

Investment securities in an unrealized loss position at June 30, 2026, were as follows:


	Unrealized loss position for less than 12 months				Unrealized loss position for 12 months or longer				Total
(In thousands)	Fair value		Unrealized losses		Fair value		Unrealized losses		Fair value		Unrealized losses
Debt securities AFS:
Obligations of U.S. Government sponsored entities	$	99,196	$	561	$	—	$	—	$	99,196	$	561
Obligations of states and political subdivisions	68,889		470		86,044		9,567		154,933		10,037
U.S. Government sponsored entities' asset-backed securities	485,864		6,119		294,724		32,138		780,588		38,257
Collateralized loan obligations	14,157		36		—		—		14,157		36
Corporate debt securities	389		11		9,774		476		10,163		487
Total	$	668,495	$	7,197	$	390,542	$	42,181	$	1,059,037	$	49,378

Investment securities in an unrealized loss position at December 31, 2025, were as follows:


	Unrealized loss position for less than 12 months				Unrealized loss position for 12 months or longer				Total
(In thousands)	Fair value		Unrealized losses		Fair value		Unrealized losses		Fair value		Unrealized losses
Debt securities AFS:
Obligations of states and political subdivisions	$	2,078	$	33	$	107,828	$	10,237	$	109,906	$	10,270
U.S. Government sponsored entities' asset-backed securities	21,603		187		335,095		33,042		356,698		33,229
Collateralized loan obligations	23,172		78		—		—		23,172		78
Corporate debt securities	999		1		9,725		525		10,724		526
Total	$	47,852	$	299	$	452,648	$	43,804	$	500,500	$	44,103

Investments Classified by Contractual Maturity Date

The amortized cost and estimated fair value of investments in debt securities AFS at June 30, 2026, are shown in the following table by contractual maturity, except for asset-backed securities and collateral loan obligations, which are shown as a single total due to the unpredictability of the timing of principal repayments. Expected maturities may differ from contractual maturities if borrowers have the right to call or prepay obligations with or without call or prepayment penalties.


(In thousands)	Amortized cost		Fair value		Tax equivalent yield (1)
Debt Securities AFS
Obligations of U.S.Government sponsored entities
Due within one year	$	29,755	$	29,669	3.62	%
Due one through five years	70,002		69,527		3.66	%
Total	$	99,757	$	99,196	3.65	%

Obligations of state and political subdivisions:
Due one through five years	$	4,710	$	4,571	2.49	%
Due six through ten years	74,786		69,531		2.64	%
Due over ten years	219,613		217,400		4.64	%
Total (1)	$	299,109	$	291,502	4.10	%

U.S. Government sponsored entities' asset-backed securities	$	858,811	$	821,094	3.29	%

Collateralized loan obligations	$	29,443	$	29,416	5.25	%

Corporate debt securities
Due one through five years	$	2,250	$	2,244	7.45	%
Due six through ten years	18,850		18,555		4.30	%
Total	$	21,100	$	20,799	4.64	%