Loans Receivable (excluding Covered Loans) Troubled Debt Restructurings (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2011 Contracts
Financing Receivable, Modifications [Line Items]
Number of Contracts	768
Pre-Modification, Outstanding Recorded Investment	$ 202,828
Post-Modification Outstanding Recorded Investment	202,828
Single Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	681
Pre-Modification, Outstanding Recorded Investment	177,216
Post-Modification Outstanding Recorded Investment	177,216
Construction, Speculative [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	12
Pre-Modification, Outstanding Recorded Investment	2,499
Post-Modification Outstanding Recorded Investment	2,499
Construction, Custom [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0
Pre-Modification, Outstanding Recorded Investment	0
Post-Modification Outstanding Recorded Investment	0
Land, Acquisition and Development [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	3
Pre-Modification, Outstanding Recorded Investment	3,909
Post-Modification Outstanding Recorded Investment	3,909
Land, Consumer Lot Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	62
Pre-Modification, Outstanding Recorded Investment	8,745
Post-Modification Outstanding Recorded Investment	8,745
Multi Family Housing [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	9
Pre-Modification, Outstanding Recorded Investment	10,360
Post-Modification Outstanding Recorded Investment	10,360
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0
Pre-Modification, Outstanding Recorded Investment	0
Post-Modification Outstanding Recorded Investment	0
Commercial and Industrial Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0
Pre-Modification, Outstanding Recorded Investment	0
Post-Modification Outstanding Recorded Investment	0
Home Equity Line of Credit [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1
Pre-Modification, Outstanding Recorded Investment	99
Post-Modification Outstanding Recorded Investment	99
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0
Pre-Modification, Outstanding Recorded Investment	0
Post-Modification Outstanding Recorded Investment	$ 0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 32

-URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953670-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953676-111524

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- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings after the financing receivable has been modified.

+ References

+ Details

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- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings before the financing receivable has been modified.

+ References

+ Details

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