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Commitments and Contingent Liabilities (Tables)
 12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Schedule of maximum potential obligations to extend credit for loan commitments
The Company’s maximum potential obligations to extend credit for loan commitments (unfunded loans, unused lines of credit, and standby letters of credit) outstanding on December 31 were as follows:
 
(In thousands)20212020
Loan commitments$176,510 $144,593 
Standby letters of credit39,773 31,441 
Undisbursed portion of lines of credit911,694 830,930 
Total$1,127,977 $1,006,964