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Commitments and Contingent Liabilities (Tables)
6 Months Ended
Jun. 30, 2019
Schedule of financial instruments with off-balance sheet risk

June 30, 

December 31, 

(dollars in thousands)

    

2019

    

2018

Financial instruments whose contract amounts represent credit risk:

Commitments to extend credit

$

5,791,088

$

5,549,591

Standby letters of credit

185,872

204,324

Commercial letters of credit

6,994

7,535