v2.4.0.6
Covered Assets and FDIC Loss-sharing Asset (Changes in Accretable Yield for Acquired Loans) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Covered Assets And FDIC Loss Sharing Asset    
Balance at beginning of period $ 256,572 $ 0
Additions resulting from acquisitions 59,810 122,705
Accretion (90,378) (45,956)
Disposals (31,483) (9,014)
Reclassifications from nonaccretable difference 65,148 188,837
Balance at end of period $ 259,669 $ 256,572