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Loans Receivable (excluding Covered Loans) (Loan Modifications) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2012 Contracts | Jun. 30, 2011 Contracts | Jun. 30, 2012 Contracts | Jun. 30, 2011 Contracts
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 30 | 14 | 101 | 33
Recorded Investment | $ 8,225 | $ 7,288 | $ 22,290 | $ 11,776
Residential Portfolio Segment [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 30 | 10 | 97 | 29
Recorded Investment | 8,225 | 3,295 | 21,687 | 7,783
Construction, Speculative [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 0 | 0 | 0
Recorded Investment | 0 | 0 | 0 | 0
Construction, Custom [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 0 | 0 | 0
Recorded Investment | 0 | 0 | 0 | 0
Land, Acquisition and Development [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 0 | 0 | 0
Recorded Investment | 0 | 0 | 0 | 0
Land, Consumer Lot Loans [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 3 | 4 | 3
Recorded Investment | 0 | 404 | 603 | 404
Multi Family Housing [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 1 | 0 | 1
Recorded Investment | 0 | 3,589 | 0 | 3,589
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 0 | 0 | 0
Recorded Investment | 0 | 0 | 0 | 0
Commercial and Industrial Loans [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 0 | 0 | 0
Recorded Investment | 0 | 0 | 0 | 0
Home Equity Line of Credit [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 0 | 0 | 0
Recorded Investment | 0 | 0 | 0 | 0
Consumer Portfolio Segment [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 0 | 0 | 0
Recorded Investment | $ 0 | $ 0 | $ 0 | $ 0

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