XML 21 R47.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Covered Assets - Acquired Impaired and Non-impaired Covered Loans (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2015 | Sep. 30, 2014
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] |  |
Accretion, carrying amount of loans | $ 422 | $ 802
Acquired Impaired Loans [Member] |  |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] |  |
Balance at beginning of period, accretable yield | 64,534 | 78,277
Balance at beginning of period, carrying amount of loans | 78,055 | 138,091
Transferred to non-covered, accretable yield | (23,167) |
Transferred to non-covered, carrying amount | (15,866) |
Reclassification from nonaccretable balance, net, accretable yield | 6,307 | 10,186
Reclassification from nonaccretable balance, net, Carrying Amount of Loans | 0 | 2,069
Accretion, accretable yield | (11,577) | (23,929)
Accretion, carrying amount of loans | 11,577 | 23,929
Transfers to REO, accretable yield | 0 | 0
Transfers to REO, carrying amount of loans | (1,893) | (8,943)
Payments received, net, accretable yield | 0 | 0
Payments received, net, carrying amount of loans | (19,845) | (72,953)
Balance at end of period, accretable yield | 36,097 | 64,534
Balance at end of period, carrying amount of loans | 52,028 | 78,055
Acquired Non Impaired Assets [Member] |  |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] |  |
Balance at beginning of period, accretable yield | 10,259 | 17,263
Balance at beginning of period, carrying amount of loans | 98,422 | 157,856
Transferred to non-covered, accretable yield | (1,482) |
Transferred to non-covered, carrying amount | (33,649) |
Reclassification from nonaccretable balance, net, accretable yield | 0 | 0
Reclassification from nonaccretable balance, net, Carrying Amount of Loans | 0 | 0
Accretion, accretable yield | (4,358) | (7,004)
Accretion, carrying amount of loans | 4,358 | 7,004
Transfers to REO, accretable yield | 0 | 0
Transfers to REO, carrying amount of loans | 0 | 0
Payments received, net, accretable yield | 0 | 0
Payments received, net, carrying amount of loans | (43,848) | (66,438)
Balance at end of period, accretable yield | 4,419 | 10,259
Balance at end of period, carrying amount of loans | $ 25,283 | $ 98,422

X
- 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 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 2: 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 + Details
Name: | us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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
Name: | us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldMovementScheduleRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 2: 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 + Details
Name: | us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Certain Loans Acquired in Transfer not Accounted for as Debt Securities Accretable Yield, Payments + References No definition available. + Details
Name: | wfsl_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldPayments
Namespace Prefix: | wfsl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Transfers to Real Estate Owned + References No definition available. + Details
Name: | wfsl_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldTransfersToRealEstateOwned
Namespace Prefix: | wfsl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Payments + References No definition available. + Details
Name: | wfsl_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesPayments
Namespace Prefix: | wfsl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Reclassifications from Nonaccretable Difference + References No definition available. + Details
Name: | wfsl_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesReclassificationsFromNonaccretableDifference
Namespace Prefix: | wfsl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Transfers to Real Estate Owned + References No definition available. + Details
Name: | wfsl_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesTransfersToRealEstateOwned
Namespace Prefix: | wfsl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Transferred to Non-covered + References No definition available. + Details
Name: | wfsl_CertainLoansAcquiredinTransferNotAccountedforasDebtSecuritiesAccretableYieldTransferredtoNoncovered
Namespace Prefix: | wfsl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Transferred to Non-covered + References No definition available. + Details
Name: | wfsl_CertainLoansAcquiredinTransferNotAccountedforasDebtSecuritiesCarryingAmountTransferredtoNoncovered
Namespace Prefix: | wfsl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition FDIC Indemnification Asset, Discount Accretion + References No definition available. + Details
Name: | wfsl_FdicIndemnificationAssetDiscountAccretion
Namespace Prefix: | wfsl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | wfsl_CoveredAssetsStatusOfLoansAcquiredInTransferAxis=wfsl_AcquiredImpairedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | wfsl_CoveredAssetsStatusOfLoansAcquiredInTransferAxis=wfsl_AcquiredNonImpairedAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |