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Loans Receivable (excluding Covered Loans) (Loans on Non-accrual Status) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Sep. 30, 2012	Jun. 30, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	$ 148,655	$ 173,427	$ 171,033
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	100.00%	100.00%
Single-Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	104,252	131,193
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	70.10%	75.70%
Construction - Speculative [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	3,776	10,634
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	2.50%	6.10%
Construction - Custom [Member]
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 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	9,586	13,477
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	6.40%	7.80%
Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	3,712	5,149
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	2.50%	3.00%
Multi-Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	6,653	4,185
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	4.50%	2.40%
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	14,348	7,653
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	9.70%	4.40%
Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	5,072	16
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	3.40%	0.00%
HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	871	198
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	0.60%	0.10%
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	$ 385	$ 383
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	0.30%	0.20%

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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=7512638&loc=d3e5111-111524



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 01-6

-Paragraph 13

-Subparagraph g

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Loans and Leases Receivable, Ratio of Type of Nonperforming Loans to All Nonperforming Loans

+ References

No definition available.

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