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SECURITIES (Tables)
 12 Months Ended
Dec. 31, 2025
Investments, Debt and Equity Securities [Abstract]  
Schedule of Amortized Cost and Fair Value of Securities Available for Sale
The amortized cost and fair value of securities available for sale were as follows:
December 31, 2025
Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses 		Fair
Value
(In thousands)
Available for Sale
U.S. government and agency securities$394,361 $497 $(2,383)$392,475 
Municipal securities218,143 627 (22,569)196,201 
Agency mortgage-backed pass-through securities831,815 5,548 (29,377)807,986 
Agency collateralized mortgage obligations737,627 3,375 (43,937)697,065 
Corporate bonds and other108,820 564 (4,652)104,732 
Total$2,290,766 $10,611 $(102,918)$2,198,459 
December 31, 2024
Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses 		Fair
Value
(In thousands)
Available for Sale
U.S. government and agency securities$198,962 $348 $(5,707)$193,603 
Municipal securities219,545 367 (28,459)191,453 
Agency mortgage-backed pass-through securities566,719 3 (45,346)521,376 
Agency collateralized mortgage obligations730,861 830 (71,328)660,363 
Corporate bonds and other115,601 181 (9,561)106,221 
Total$1,831,688 $1,729 $(160,401)$1,673,016 
Schedule of Investments Classified by Contractual Maturity Date
The amortized cost and fair value of investment securities at December 31, 2025, by contractual maturity, are shown below. Expected maturity may differ from contractual maturity if borrowers have the right to call or prepay obligations at any time with or without call or prepayment penalties.
Amortized
Cost		Fair
Value
(In thousands)
Due in one year or less$299,937 $299,992 
Due after one year through five years17,231 16,502 
Due after five years through ten years150,356 141,024 
Due after ten years253,800 235,890 
Subtotal721,324 693,408 
Agency mortgage-backed pass through securities and collateralized mortgage obligations1,569,442 1,505,051 
Total$2,290,766 $2,198,459 
Schedule of Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value
Securities with unrealized losses segregated by length of time in a continuous loss position are as follows:
December 31, 2025
Less than 12 Months More than 12 Months Total
Estimated
Fair Value		Unrealized
Losses 		Estimated
Fair Value		Unrealized
Losses 		Estimated
Fair Value		Unrealized
Losses
(In thousands)
Available for Sale
U.S. government and agency securities$185,275 $(180)$51,684 $(2,203)$236,959 $(2,383)
Municipal securities6,091 (725)170,400 (21,844)176,491 (22,569)
Agency mortgage-backed pass-through securities157,352 (1,390)279,693 (27,987)437,045 (29,377)
Agency collateralized mortgage obligations65,444 (1,006)357,857 (42,931)423,301 (43,937)
Corporate bonds and other21,255 (193)50,384 (4,459)71,639 (4,652)
Total$435,417 $(3,494)$910,018 $(99,424)$1,345,435 $(102,918)
December 31, 2024
Less than 12 Months More than 12 Months Total
Estimated
Fair Value		Unrealized
Losses 		Estimated
Fair Value		Unrealized
Losses 		Estimated
Fair Value		Unrealized
Losses
(In thousands)
Available for Sale
U.S. government and agency securities$29,443 $(576)$122,936 $(5,131)$152,379 $(5,707)
Municipal securities8,512 (183)168,132 (28,276)176,644 (28,459)
Agency mortgage-backed pass-through securities254,169 (6,861)265,993 (38,485)520,162 (45,346)
Agency collateralized mortgage obligations216,422 (4,501)317,225 (66,827)533,647 (71,328)
Corporate bonds and other11,903 (1,097)81,027 (8,464)92,930 (9,561)
Total$520,449 $(13,218)$955,313 $(147,183)$1,475,762 $(160,401)