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Loans Receivable (excluding Covered Loans) (Troubled Debt Restructurings) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2013 Contracts | Jun. 30, 2012 Contracts | Jun. 30, 2013 Contracts | Jun. 30, 2012 Contracts
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Contracts (in contracts) | 117 | 213 | 362 | 769
Pre-Modification Outstanding Recorded Investment | $ 30,726 | $ 51,339 | $ 96,258 | $ 184,824
Post-Modification Outstanding Recorded Investment | 30,726 | 51,339 | 96,258 | 184,824
Loan Modification, Basis Point Reduction, Minimum |  |  | 1.00% |
Loan Modification, Basis Point Reduction, Maximum |  |  | 2.00% |
Single Family Residential Loans as Percentage of Restructured Loans | 87.40% |  | 87.40% |
Single-Family Residential [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Contracts (in contracts) | 111 | 199 | 337 | 681
Pre-Modification Outstanding Recorded Investment | 27,619 | 43,104 | 88,085 | 159,651
Post-Modification Outstanding Recorded Investment | 27,619 | 43,104 | 88,085 | 159,651
Construction - Speculative [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 0 | 1 | 22
Pre-Modification Outstanding Recorded Investment | 0 | 0 | 2,481 | 6,253
Post-Modification Outstanding Recorded Investment | 0 | 0 | 2,481 | 6,253
Construction - Custom [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 1 | 0 | 1
Pre-Modification Outstanding Recorded Investment | 0 | 1,196 | 0 | 1,196
Post-Modification Outstanding Recorded Investment | 0 | 1,196 | 0 | 1,196
Land - Acquisition & Development [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 0 | 0 | 26
Pre-Modification Outstanding Recorded Investment | 0 | 0 | 0 | 5,565
Post-Modification Outstanding Recorded Investment | 0 | 0 | 0 | 5,565
Land - Consumer Lot Loans [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Contracts (in contracts) | 4 | 8 | 20 | 30
Pre-Modification Outstanding Recorded Investment | 685 | 965 | 3,027 | 3,906
Post-Modification Outstanding Recorded Investment | 685 | 965 | 3,027 | 3,906
Multi-Family [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 1 | 1 | 3
Pre-Modification Outstanding Recorded Investment | 0 | 389 | 44 | 2,257
Post-Modification Outstanding Recorded Investment | 0 | 389 | 44 | 2,257
Commercial Real Estate [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Contracts (in contracts) | 1 | 2 | 1 | 3
Pre-Modification Outstanding Recorded Investment | 2,411 | 5,572 | 2,411 | 5,881
Post-Modification Outstanding Recorded Investment | 2,411 | 5,572 | 2,411 | 5,881
Commercial & Industrial [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 0 | 0 | 1
Pre-Modification Outstanding Recorded Investment | 0 | 0 | 0 | 2
Post-Modification Outstanding Recorded Investment | 0 | 0 | 0 | 2
HELOC [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 2 | 1 | 2
Pre-Modification Outstanding Recorded Investment | 0 | 113 | 199 | 113
Post-Modification Outstanding Recorded Investment | 0 | 113 | 199 | 113
Consumer [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of Contracts (in contracts) | 1 | 0 | 1 | 0
Pre-Modification Outstanding Recorded Investment | 11 | 0 | 11 | 0
Post-Modification Outstanding Recorded Investment | $ 11 | $ 0 | $ 11 | $ 0

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