XML 37 R27.htm IDEA: XBRL DOCUMENT v3.8.0.1

Loans Receivable - Loans Receivable, Analysis of Age of Loans in Past Due Status (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Sep. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 11,399,236	$ 11,051,453
Current	11,353,747	11,007,440
Past due	$ 45,489	$ 44,013
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.40%	0.40%
Ratio of total past due loans to total loans receivable, current	99.60%	99.60%
Ratio of total past due loans to total loans receivable, past due	0.40%	0.40%
30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 11,209	$ 12,015
Ratio of total past due loans to total loans receivable, past due	0.10%	0.11%
60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 9,762	$ 6,245
Ratio of total past due loans to total loans receivable, past due	0.09%	0.06%
90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 24,518	$ 25,753
Ratio of total past due loans to total loans receivable, past due	0.22%	0.23%
Single-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	$ 5,704,505	$ 5,709,690
Current	5,675,605	5,671,933
Past due	$ 28,900	$ 37,757
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.51%	0.66%
Single-family residential | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 6,268	$ 10,925
Single-family residential | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	3,621	4,810
Single-family residential | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	19,011	22,022
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	916,662	793,959
Current	913,419	793,959
Past due	$ 3,243	$ 0
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.35%	0.00%
Construction | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 948	$ 0
Construction | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Construction | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	2,295	0
Construction - custom
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	295,699	277,599
Current	295,699	277,508
Past due	$ 0	$ 91
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.00%	0.03%
Construction - custom | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 0	$ 0
Construction - custom | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Construction - custom | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	91
Land - acquisition & development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	119,063	104,856
Current	117,200	104,526
Past due	$ 1,863	$ 330
Ratio of past due loans to total loans, net of charge-offs and LIPs	1.56%	0.31%
Land - acquisition & development | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 0	$ 0
Land - acquisition & development | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	0
Land - acquisition & development | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	1,863	330
Land - consumer lot loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	102,705	104,335
Current	101,837	103,389
Past due	$ 868	$ 946
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.85%	0.91%
Land - consumer lot loans | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 328	$ 112
Land - consumer lot loans | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	680
Land - consumer lot loans | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	540	154
Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	1,328,027	1,303,119
Current	1,327,864	1,302,720
Past due	$ 163	$ 399
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.01%	0.03%
Multi-family | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 29	$ 5
Multi-family | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	134	255
Multi-family | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	0	139
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	1,443,437	1,434,610
Current	1,441,459	1,432,052
Past due	$ 1,978	$ 2,558
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.14%	0.18%
Commercial real estate | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 1,275	$ 507
Commercial real estate | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	98	0
Commercial real estate | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	605	2,051
Commercial & industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	1,151,108	1,093,360
Current	1,143,385	1,092,735
Past due	$ 7,723	$ 625
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.67%	0.06%
Commercial & industrial | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 1,850	$ 0
Commercial & industrial | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	5,752	51
Commercial & industrial | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	121	574
HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	135,119	144,850
Current	134,866	143,974
Past due	$ 253	$ 876
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.19%	0.60%
HELOC | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 163	$ 221
HELOC | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	30	342
HELOC | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	60	313
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans, net of charge-offs and LIP	202,911	85,075
Current	202,413	84,644
Past due	$ 498	$ 431
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.25%	0.51%
Consumer | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 348	$ 245
Consumer | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	127	107
Consumer | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due	$ 23	$ 79

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Financing receivables that are current.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953401-111524

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Recorded Investment in financing receivables that are past due at the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953401-111524

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentPastDue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Financing Receivable, Ratio of Total Past Due Loans to Total Loans Receivable, Net of Charge Offs and Loans in Process, Current

+ References

No definition available.

+ Details

Name:	wfsl_FinancingReceivableRatioofTotalPastDueLoanstoTotalLoansReceivableNetofChargeOffsandLoansinProcessCurrent
Namespace Prefix:	wfsl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Financing Receivable, Ratio of Total Past Due Loans to Total Loans Receivable, Net of Charge Offs and Loans in Process, Past Due

+ References

No definition available.

+ Details

Name:	wfsl_FinancingReceivableRatioofTotalPastDueLoanstoTotalLoansReceivableNetofChargeOffsandLoansinProcessPastDue
Namespace Prefix:	wfsl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Loans and Leases Receivable, Ratio of Total Past Due Loans to Total Loans Receivable, Net of Charge Offs and Loans in Process

+ References

No definition available.

+ Details

Name:	wfsl_LoansAndLeasesReceivableRatioOfTotalPastDueLoansToTotalLoansReceivableNetOfChargeOffsAndLoansInProcess
Namespace Prefix:	wfsl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Loans Receivable, Net of Charge Offs and Loans in Process

+ References

No definition available.

+ Details

Name:	wfsl_LoansReceivableNetofChargeOffsandLoansinProcess
Namespace Prefix:	wfsl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables1To29DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables30To59DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables60To89DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConstructionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=wfsl_ConstructionCustomMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=wfsl_LandAcquisitionAndDevelopmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=wfsl_LandConsumerLotLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=wfsl_MultiFamilyHousingPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=wfsl_CommercialandIndustrialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_HomeEquityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: