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Commitments and Letters of Credit (Tables)
12 Months Ended
Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]  
Notional Amount of Commitments and Letter of Credit Instruments
The following table identifies the notional amount of those instruments at December 31:
20232022
 (dollars in thousands)
Financial instruments whose contract amounts represent credit risk:
Commitments to extend credit$2,517,905 $2,356,539 
Financial standby letters of credit14,300 18,417 
Performance standby letters of credit17,194 12,853 
Commercial letters of credit555 573