Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]

Schedule of fair falue for off-balance sheet risks

The following table presents the commitments to extend credit and unfunded commitments as of September 30, 2017 and December 31, 2016:

(Dollars in thousands)	September 30, 2017		December 31, 2016
Unused commitments to extend credit	$	9,428,471	$	8,808,218
Standby letters of credit	75,257		83,750
Unfunded commitments for investments in affordable housing projects	57,725		57,079