Loans and Leases (Changes In Carrying Value Of Acquired Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 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	$ 36,800	$ 28,500
Fair value of acquired impaired loans	316,327	0
Accretion	89,775	179,792
Reductions for repayments, foreclosures and changes in carrying value, net of accretion	(439,248)	(800,746)
Ending balance	996,280	1,188,281	36,800	28,500
Outstanding principal balance	$ 1,754,882	$ 2,082,873