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FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK (Tables)
12 Months Ended
Dec. 31, 2017
Investments, All Other Investments [Abstract]  
Schedule of financial instruments with off-balance sheet risk
At December 31, 2017 and 2016, financial instruments with off-balance sheet risk were as follows:
 
 
December 31,
 
2017
 
2016
 
(Dollars in thousands)
Notional of:
 
 
 
Financial instruments whose contract amounts represent credit risk:
 

 
 

Commitments to extend credit
$
917,405

 
$
825,304

Standby letters of credit and financial guarantees written
13,551

 
16,073

 
 
 
 
Notional of:
 
 
 
Financial instruments whose contract amounts exceed the amount of credit risk:
 
 
 

Interest rate options
2,494

 
879

Forward interest rate contracts
18,748

 
32,497