Allowance for Loan and Lease Loss and Credit Quality (Summary Of Reserve For Unfunded Commitments Activity) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Reserve for Unfunded Commitments [Roll Forward]
Balance, beginning of period	$ 3,539	$ 1,436
Net change to other expense	35	(1,863)
Provision for Reserve of Unfunded Commitments	0	3,966
Balance, end of period	3,574	3,539
Unfunded loan commitments	$ 3,723,520	$ 3,000,505