Loans (Activity Related To Accretable Yield Of Loans Acquired With Evidence Of Credit Quality Deterioration Since Origination ) (Details) (USD $) In Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011
Bank acquisitions [Member]
Accretable yield, beginning balance	$ 80,748	$ 39,809
Acquisitions	24,695	31,802
Accretable yield amortized to interest income	(14,187)	(41,914)
Reclassification to/from non-accretable difference	2,145	52,820
Increases (decreases) in interest cash flows due to payments and changes in interest rates	(6,904)	3,980
Accretable yield, ending balance	86,497	86,497
Life insurance premium finance loans acquisition [Member]
Accretable yield, beginning balance	24,891	33,315
Accretable yield amortized to interest income	(5,127)	(19,301)
Reclassification to/from non-accretable difference		3,857
Increases (decreases) in interest cash flows due to payments and changes in interest rates	432	2,325
Accretable yield, ending balance	$ 20,196	$ 20,196