Commitments and Financial Instruments with Off-Balance-Sheet Risk (Tables)

9 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of financial instruments whose contract amounts represent credit risk

The following table shows financial instruments whose contract amounts represent credit risk.

(Dollars in thousands)	September 30, 2017		December 31, 2016
Amounts of commitments:
Loan commitments to extend credit	$	939,797	$	868,267
Standby letters of credit	$	30,215	$	33,397
Commercial and similar letters of credit	$	3,172	$	1,704