Loans and Leases (Changes In Carrying Value Of Acquired Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Loans on the Cost Recovery Method	Dec. 31, 2013 Loans on the Cost Recovery Method
Carrying Value of Acquired Impaired Loans [Roll Forward]
Beginning balance	$ 1,029,426	$ 1,809,235	$ 54,000	$ 28,500
Fair value of acquired impaired loans	316,327	0
Accretion	60,660	131,909
Reductions for repayments, foreclosures and changes in carrying value, net of accretion	(296,480)	(497,808)
Ending balance	1,109,933	1,443,336	54,000	28,500
Outstanding principal balance	$ 1,888,475	$ 2,456,347