Non-Covered Loans And Leases (Schedule Of Major Types Of Non-Covered Loans) (Details) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Non-Covered Loans And Leases [Abstract]
Commercial real estate, Term & multifamily	$ 3,558,295,000	$ 3,483,475,000
Commercial real estate, Construction & development	165,066,000	247,814,000
Commercial real estate, Residential development	90,073,000	147,813,000
Commercial, Term	625,766,000	509,453,000
Commercial, LOC & other	832,999,000	747,419,000
Residential, Mortgage	315,927,000	222,416,000
Residential, Home equity loans & lines	272,192,000	278,585,000
Consumer & other	38,860,000	33,043,000
Total	5,899,178,000	5,670,018,000
Deferred loan fees, net	(11,080,000)	(11,031,000)
Total loans and leases	5,888,098,000	5,658,987,000
Total loans pledged to secure borrowings	$ 5,100,000,000