Covered Assets and FDIC Loss-sharing Asset (FDIC Loss-sharing Asset) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Covered Assets And FDIC Loss Sharing Asset [Line Items]
FDIC Loss-sharing Asset, Write-downs of Other Real Estate	$ 364	$ 5,190
FDIC Loss-sharing Asset [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Balance at beginning of period	96,354	175,071
Cash received from the FDIC	(9,246)	(54,649)
FDIC reimbursable losses, net	(2,245)	399
Amortization, net	(36,729)	(42,940)
Impairment	(2,609)	20,714
Sale of other real estate	(6,177)	(7,789)
Other	134	358
Balance at end of period	$ 39,846	$ 96,354