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Commitments and Contingent Liabilities (Tables)
12 Months Ended
Dec. 31, 2019
Commitments and Contingent Liabilities  
Schedule of financial instruments with off-balance sheet risk

December 31, 

(dollars in thousands)

  

2019

  

2018

Financial instruments whose contract amounts represent credit risk:

Commitments to extend credit

$

5,907,690

$

5,549,591

Standby letters of credit

181,412

204,324

Commercial letters of credit

7,334

7,535