Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2019

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:

	March 31, 2019		December 31, 2018
	(in thousands)
Commitments to extend credit	$	6,533,257	$	6,306,583
Standby letters of credit	306,946		309,352
Commercial letters of credit	47,041		48,682