Covered Assets and FDIC Loss-sharing Asset (Carrying Amounts For Acquired Loans At Acquisition Date) (Details) (USD $) In Thousands, unless otherwise specified	May 27, 2011 First Heritage Bank [Member]		May 20, 2011 Summit Bank [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Contractually required payments of interest and principal	$ 151,611		$ 127,823
Nonaccretable difference	(34,052)		(34,301)
Cash flows expected to be collected	117,559	[1]	93,522	[1]
Accretable yield	36,071		23,739
Carrying value of acquired loans	$ 81,488		$ 69,783

[1] Represents undiscounted expected principal and interest cash flows