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Loans Receivable (excluding Covered Loans) - Loan Modifications (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2015 USD ($) contract | Jun. 30, 2014 USD ($) contract | Jun. 30, 2015 USD ($) contract | Jun. 30, 2014 USD ($) contract
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of contracts (in contracts) | contract | 11 | 19 | 26 | 47
Recorded investment | $ 1,895 | $ 3,327 | $ 4,320 | $ 9,821
Single-Family Residential [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of contracts (in contracts) | contract | 9 | 17 | 19 | 42
Recorded investment | $ 1,594 | $ 3,088 | $ 3,329 | $ 9,206
Land - Consumer Lot Loans [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of contracts (in contracts) | contract | 2 | 1 | 7 | 4
Recorded investment | $ 301 | $ 69 | $ 991 | $ 445
Consumer [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of contracts (in contracts) | contract | 0 | 1 | 0 | 1
Recorded investment | $ 0 | $ 170 | $ 0 | $ 170

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