Noncovered Loans Noncovered Loans (Analysis of Troubled Debt Restructurings) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 contract	Dec. 31, 2012 contract	Dec. 31, 2011 contract
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Additional Commitment To Lend	$ 0	$ 236
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0
Noncovered Loans [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	12	2	10
Pre-Modification Outstanding Recorded Investment	1,968	4,474	2,344
Post-Modification Outstanding Recorded Investment	1,968	2,844	2,344
Noncovered Loans [Member] | Secured Loans [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	2	1	6
Pre-Modification Outstanding Recorded Investment	190	195	659
Post-Modification Outstanding Recorded Investment	190	194	659
Noncovered Loans [Member] | One-to-Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	0	1
Pre-Modification Outstanding Recorded Investment	113	0	369
Post-Modification Outstanding Recorded Investment	113	0	369
Noncovered Loans [Member] | Commercial Land [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	0	0
Pre-Modification Outstanding Recorded Investment	137	0	0
Post-Modification Outstanding Recorded Investment	137	0	0
Noncovered Loans [Member] | Income Property Multifamily [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	4	1	2
Pre-Modification Outstanding Recorded Investment	1,186	4,279	1,280
Post-Modification Outstanding Recorded Investment	1,186	2,650	1,280
Noncovered Loans [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	0	0
Pre-Modification Outstanding Recorded Investment	172	0	0
Post-Modification Outstanding Recorded Investment	172	0	0
Noncovered Loans [Member] | Land And Acquisition [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	0	0
Pre-Modification Outstanding Recorded Investment	117	0	0
Post-Modification Outstanding Recorded Investment	117	0	0
Noncovered Loans [Member] | Residential Construction [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	0	1
Pre-Modification Outstanding Recorded Investment	0	0	36
Post-Modification Outstanding Recorded Investment	0	0	36
Noncovered Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	2	0	0
Pre-Modification Outstanding Recorded Investment	53	0	0
Post-Modification Outstanding Recorded Investment	$ 53	$ 0	$ 0