Loans and Leases (Schedule Of Troubled Debt Restructurings Balance And Activity) (Detail) (USD $)	3 Months Ended			6 Months Ended			12 Months Ended
	Jun. 30, 2014		Jun. 30, 2013	Jun. 30, 2014		Jun. 30, 2013	Dec. 31, 2013
Troubled Debt Restructurings Balance And Activity [Line Items]
Performing TDRs, end of period	$ 40,938,000			$ 40,938,000			$ 72,133,000
TDRs [Member]
Troubled Debt Restructurings Balance And Activity [Line Items]
Performing TDRs, beginning of period	39,555,000		65,773,000	72,133,000		67,775,000	67,775,000
New restructurings as TDRs	3,213,000		7,187,000	4,083,000		25,069,000
Repayments and payoffs	(566,000)		(1,013,000)	(1,005,000)		(3,250,000)
Charge-offs after restructuring	(14,000)		(6,604,000)	(429,000)		(6,725,000)
Transfer to nonaccrual, past due 90 days or greater, non-performing TDRs	(1,248,000)		(1,212,000)	(5,688,000)		(6,042,000)
Transfer out of TDR status	0		(272,000)	(28,155,000)		(12,613,000)
Other, net	(2,000)		(37,000)	(1,000)		(392,000)
Performing TDRs, end of period	40,938,000		63,822,000	40,938,000		63,822,000	72,133,000
Non-performing TDRs, end of period	20,465,000	[1]	20,500,000	20,465,000	[1]	20,500,000	22,676,000	[1]
Performing TDRs	67.00%		76.00%	67.00%		76.00%	76.00%
Non-performing TDRs	33.00%		24.00%	33.00%		24.00%	24.00%
Transferred To OREO				$ 203,000

[1] These loans are included in the 90 day past due and non-accrual categories.