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Loans Receivable (excluding Covered Loans) - Loans on Non-accrual Status (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual loans by portfolio segment | $ 131,299 | $ 173,427
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status | 100.00% | 100.00%
Single family residential loans as percentage of restructured loans | 86.00% |
Approximate rate reduction concession, minimum | 1.00% |
Approximate rate reduction concession, maximum | 2.00% |
Single-family residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual loans by portfolio segment | 100,460 | 131,193
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status | 76.50% | 75.70%
Construction - speculative |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual loans by portfolio segment | 4,560 | 10,634
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status | 3.50% | 6.10%
Construction - custom |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual loans by portfolio segment | 0 | 539
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status | 0.00% | 0.30%
Land - acquisition & development |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual loans by portfolio segment | 2,903 | 13,477
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status | 2.20% | 7.80%
Land - consumer lot loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual loans by portfolio segment | 3,337 | 5,149
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status | 2.50% | 3.00%
Multi-family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual loans by portfolio segment | 6,573 | 4,185
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status | 5.00% | 2.40%
Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual loans by portfolio segment | 11,736 | 7,653
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status | 8.90% | 4.40%
Commercial & industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual loans by portfolio segment | 477 | 16
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status | 0.40% | 0.00%
HELOC |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual loans by portfolio segment | 263 | 198
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status | 0.20% | 0.10%
Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual loans by portfolio segment | $ 990 | $ 383
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status | 0.80% | 0.20%
Minimum |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Term for payment and rate reduction | 6 months |
Maximum |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Term for payment and rate reduction | 24 months |

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- Definition Reflects the carrying amount of loans deemed to be questionable as to collection on which no interest is continuing to be recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5111-111524 + Details
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