Loan Commitments and Standby Letters of Credit (Tables)

12 Months Ended

Dec. 31, 2014

Guarantees [Abstract]

Schedule of Exposure to Credit Loss for Loan Commitments and Standby Letters of Credit

The Company's maximum exposure to credit loss for loan commitments (unfunded loans and unused lines of credit, including home equity lines of credit) and standby letters of credit outstanding were as follows: 

	December 31,
(in thousands)	2014		2013
Unfunded commitments of existing commercial loans	$	471,372	$	385,674
Unfunded commitments of existing consumer/residential loans	112,145		106,024
Standby letters of credit	34,559		37,217
Commitments to grant loans	19,064		32,077
Total	$	637,140	$	560,992