Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Summary of Outstanding Commitments to Extend Credit and Letters of Credit

The outstanding amounts of commitments to extend credit and letters of credit were as follows:

	September 30, 2017		December 31, 2016
	(in thousands)
Commitments to extend credit	$	6,418,318	$	6,075,567
Standby letters of credit	331,096		356,359
Commercial letters of credit	41,819		38,901