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Loans Receivable (excluding Covered Loans) (Loan Modifications) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2014 contract | Mar. 31, 2013 contract | Mar. 31, 2014 contract | Mar. 31, 2013 contract
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 24 | 41 | 42 | 60
Recorded Investment | $ 4,301 | $ 8,886 | $ 7,425 | $ 14,313
Single-Family Residential [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 23 | 37 | 38 | 55
Recorded Investment | 4,218 | 8,579 | 7,067 | 13,704
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 & 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) | 1 | 1 | 4 | 1
Recorded Investment | 83 | 139 | 358 | 139
Multi-Family [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 1 | 0 | 1
Recorded Investment | 0 | 55 | 0 | 55
Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 0 | 0 | 1
Recorded Investment | 0 | 0 | 0 | 302
Commercial & Industrial [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 0 | 0 | 0
Recorded Investment | 0 | 0 | 0 | 0
HELOC [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Contracts (in contracts) | 0 | 2 | 0 | 2
Recorded Investment | 0 | 113 | 0 | 113
Consumer [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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