Noncovered Loans Noncovered Loans (Analysis of Troubled Debt Restructurings) (Details) (Noncovered Loans [Member], USD $) In Thousands, unless otherwise specified	9 Months Ended	15 Months Ended
	Sep. 30, 2011 Modifications	Sep. 30, 2012 Modifications
Financing Receivable, Modifications [Line Items]
Number of TDR Modifications	5	1
Pre-Modification Outstanding Recorded Investment	$ 1,237	$ 226
Post-Modification Outstanding Recorded Investment	1,237	226
Secured Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of TDR Modifications	3	1
Pre-Modification Outstanding Recorded Investment	578	226
Post-Modification Outstanding Recorded Investment	578	226
Income Property Multifamily [Member]
Financing Receivable, Modifications [Line Items]
Number of TDR Modifications	1
Pre-Modification Outstanding Recorded Investment	623
Post-Modification Outstanding Recorded Investment	623
Residential Construction [Member]
Financing Receivable, Modifications [Line Items]
Number of TDR Modifications	1
Pre-Modification Outstanding Recorded Investment	36
Post-Modification Outstanding Recorded Investment	$ 36