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Loans Receivable (excluding Covered Loans) - Loans on Non-accrual Status (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual of interest	$ 65,308	$ 87,431
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 of interest	$ 56,638	$ 74,067
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	86.70%	84.80%
Construction - Speculative [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual of interest	$ 762	$ 1,477
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	1.20%	1.70%
Construction - Custom [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual of interest	$ 355	$ 0
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	0.50%	0.00%
Land - Acquisition & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual of interest	$ 0	$ 811
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	0.00%	0.90%
Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual of interest	$ 1,308	$ 2,637
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	2.00%	3.00%
Multi-Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual of interest	$ 786	$ 1,742
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	1.20%	2.00%
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual of interest	$ 2,852	$ 5,106
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	4.40%	5.80%
Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual of interest	$ 1,205	$ 7
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	1.80%	0.00%
HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual of interest	$ 889	$ 795
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	1.40%	0.90%
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual of interest	$ 513	$ 789
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	0.80%	0.90%

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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=49124121&loc=d3e5111-111524

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