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FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK (Tables)
 12 Months Ended
Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Fair Value, Off-balance Sheet Risks
Financial instruments with off-balance sheet risk are summarized as follows:
December 31,
 20202019
 (In thousands)
Commitments to originate loans
Variable rate$85,156 $60,473 
Fixed rate61,196 63,747 
Total commitments to originate new loans$146,352 $124,220 
Unadvanced portion of loans and unused lines of credit$1,676,779 $1,468,782 
Standby letters of credit$87,718 $49,117 
Forward commitments to sell loans$33,488 $11,850