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Loans Receivable (excluding Covered Loans) (Troubled Debt Restructurings) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Dec. 31, 2011 | Dec. 31, 2010
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | 825 | 428
Pre-Modification Outstanding Recorded Investment | $ 212,297 | $ 134,482
Post-Modification Outstanding Recorded Investment | 212,297 | 134,482
Loan Modification, Basis Point Reduction, Minimum | 100.00% |
Loan Modification, Basis Point Reduction, Maximum | 200.00% |
Single Family Residential Loans as Percentage of Restructured Loans | 80.30% |
Residential Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | 700 | 379
Pre-Modification Outstanding Recorded Investment | 183,492 | 101,137
Post-Modification Outstanding Recorded Investment | 183,492 | 101,137
Construction, Speculative [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | 24 | 3
Pre-Modification Outstanding Recorded Investment | 6,409 | 1,328
Post-Modification Outstanding Recorded Investment | 6,409 | 1,328
Construction, Custom [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | 1 | 0
Pre-Modification Outstanding Recorded Investment | 1,196 | 0
Post-Modification Outstanding Recorded Investment | 1,196 | 0
Land, Acquisition and Development [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | 25 | 3
Pre-Modification Outstanding Recorded Investment | 8,524 | 5,943
Post-Modification Outstanding Recorded Investment | 8,524 | 5,943
Land, Consumer Lot Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | 65 | 28
Pre-Modification Outstanding Recorded Investment | 9,017 | 3,715
Post-Modification Outstanding Recorded Investment | 9,017 | 3,715
Multi Family Housing [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | 5 | 11
Pre-Modification Outstanding Recorded Investment | 3,161 | 19,883
Post-Modification Outstanding Recorded Investment | 3,161 | 19,883
Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | 1 | 2
Pre-Modification Outstanding Recorded Investment | 308 | 1,480
Post-Modification Outstanding Recorded Investment | 308 | 1,480
Commercial and Industrial Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | 1 | 1
Pre-Modification Outstanding Recorded Investment | 5 | 918
Post-Modification Outstanding Recorded Investment | 5 | 918
Home Equity Line of Credit [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | 3 | 1
Pre-Modification Outstanding Recorded Investment | 185 | 78
Post-Modification Outstanding Recorded Investment | 185 | 78
Consumer Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | 0 | 0
Pre-Modification Outstanding Recorded Investment | 0 | 0
Post-Modification Outstanding Recorded Investment | $ 0 | $ 0

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