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Loans Receivable (excluding Covered Loans) Interest Rate Terms (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012 | Sep. 30, 2011
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fixed interest rate | $ 6,493,287 |
Adjustable-Rate interest | 1,373,049 |
Outstanding fixed rate origination commitments | 151,990 | 67,542
Within One Year [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fixed interest rate | 259,208 |
Adjustable-Rate interest | 164,682 |
More than One Within Three Years [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fixed interest rate | 151,418 |
Adjustable-Rate interest | 237,263 |
More than Three Within Five Years [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fixed interest rate | 197,642 |
Adjustable-Rate interest | 155,987 |
More than Five Within Ten Years [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fixed interest rate | 337,819 |
Adjustable-Rate interest | 444,389 |
More than Ten Within Twenty Years [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fixed interest rate | 943,963 |
Adjustable-Rate interest | 54,017 |
More than Twenty Years [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fixed interest rate | 4,603,237 |
Adjustable-Rate interest | $ 316,711 |

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- Details
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- Definition Reflects the carrying amount of loans charging borrowers fixed rates of interest. + References No definition available. + Details
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- Definition Reflects the carrying amount of loans charging borrowers variable, or adjustable, rates of interest. + References No definition available. + Details
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Balance Type: | debit
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