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Covered Assets (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Sep. 30, 2013 | Sep. 30, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Covered assets | $ 326,927 | $ 317,925
Gross covered loans | 362,248 | 373,455
Covered loans, allowance for losses | 0 | 0
Outstanding principal balance of acquired loans | 362,248 | 373,455
Discount balance related to acquired loans | 66,301 | 85,079
Covered loans, net | 295,947 | 288,376
FDIC Indemnification Asset Movement Analysis [Roll Forward] |  |
Balance at beginning of period | 87,571 | 101,634
Additions | 18,101 | 3,284
Payments received | (13,421) | (3,456)
Amortization | (28,722) | (15,510)
Accretion | 1,086 | 1,619
Balance at end of period | 64,615 | 87,571
Single-family residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross covered loans | 56,888 | 43,375
Construction - speculative |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross covered loans | 440 | 4,609
Construction - custom |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross covered loans | 1,197 | 1,196
Land - acquisition & development |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross covered loans | 22,763 | 34,177
Land - consumer lot loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross covered loans | 741 | 995
Multi-family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross covered loans | 25,785 | 32,343
Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross covered loans | 210,604 | 205,376
Commercial & industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross covered loans | 24,365 | 31,527
HELOC |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross covered loans | 18,619 | 18,280
Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross covered loans | 846 | 1,577
Acquired Impaired |  |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] |  |
Accretable Yield, Balance at beginning of period | 50,902 | 37,072
Carrying Amount, Balance at beginning of period | 74,953 | 116,061
Accretable Yield, Additions | 43,299 | 0
Carrying Amount, Additions | 107,946 | 0
Accretable Yield, Reclassifications from nonaccretable balance, net | 17,850 | 34,690
Accretable Yield, Accretion | (33,774) | (20,860)
Carrying Amount, Transfers to Real Estate Owned | (11,196) | (15,905)
Carrying Amount, Payments received, net | (67,386) | (46,063)
Carrying Amount, Balance at end of period | 138,091 | 74,953
Accretable Yield, Balance at end of period | 78,277 | 50,902
FDIC Indemnification Asset Movement Analysis [Roll Forward] |  |
Accretion | 33,774 | 20,860
Acquired Non-impaired |  |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] |  |
Accretable Yield, Balance at beginning of period | 23,789 | 30,370
Carrying Amount, Balance at beginning of period | 213,423 | 269,888
Accretable Yield, Additions | 0 | 0
Carrying Amount, Additions | 0 | 0
Accretable Yield, Reclassifications from nonaccretable balance, net | 0 | 0
Accretable Yield, Accretion | (6,526) | (6,581)
Carrying Amount, Transfers to Real Estate Owned | 0 | 0
Carrying Amount, Payments received, net | (62,093) | (63,046)
Carrying Amount, Balance at end of period | 157,856 | 213,423
Accretable Yield, Balance at end of period | 17,263 | 23,789
FDIC Indemnification Asset Movement Analysis [Roll Forward] |  |
Accretion | $ 6,526 | $ 6,581

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- Definition Amount of the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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- Definition Amount of decrease from accretion of the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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- Definition Amount of additions to the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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- Definition Amount of increase of reclassification from nonaccretable difference to the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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- Definition The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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- Definition Disclosure of the unamortized amount of the discount on the note or receivable which is deducted from the face amount of the receivable or loan. The discount or premium is the difference between the present value and the face amount. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 + Details
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- Definition Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Additons + References No definition available. + Details
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- Definition Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Transfers to Real Estate Owned + References No definition available. + Details
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- Definition Covered assets include loans and real estate held for sale participating in loss share with the FDIC. + References No definition available. + Details
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- Definition Covered Loans, Allowance for Losses + References No definition available. + Details
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