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OTHER COMMITMENTS, CONTINGENCIES, AND OFF-BALANCE SHEET ACTIVITIES (Tables)
 12 Months Ended
Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Financial Instruments Outstanding Whose Contract Amounts Represent Credit Risk A summary of financial instruments outstanding whose contract amounts represent credit risk is as follows at year-end:
(In thousands)20222021
Commitments to originate new loans$305,474 $588,034 
Unused funds on commercial and other lines of credit966,523 902,598 
Unadvanced funds on home equity lines of credit336,924 334,784 
Unadvanced funds on construction and real estate loans694,091 340,336 
Standby letters of credit21,387 14,475 
Total$2,324,399 $2,180,227