Commitments and Contingent Liabilities (Tables)

3 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Notional Amount of Outstanding Commitments

The following table identifies the notional amount of those instruments at:

	March 31, 2018		December 31, 2017
	(dollars in thousands)
Financial instruments whose contract amounts represent credit risk:
Commitments to extend credit	$	1,782,701	$	1,840,180
Financial standby letters of credit	17,636		17,946
Performance standby letters of credit	21,328		20,472
Commercial letters of credit	1,055		1,149