XML 77 R57.htm IDEA: XBRL DOCUMENT v3.10.0.1

Allowance for Losses on Loans - Internally Assigned Grade (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 12,853,678	$ 12,201,387
Single-family residential
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	5,798,966	5,711,004
Construction
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,890,668	1,597,996
Construction - custom
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	624,479	602,631
Land - acquisition & development
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	155,204	124,308
Land - consumer lot loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	102,036	104,405
Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,385,125	1,303,148
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,452,168	1,434,610
Commercial & industrial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,140,874	1,093,360
HELOC
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	130,852	144,850
Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	173,306	85,075
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 12,728,537	$ 12,066,952
Total grade as a % of total gross loans	99.00%	98.90%
Pass | Single-family residential
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 5,766,096	$ 5,671,229
Pass | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,886,304	1,594,926
Pass | Construction - custom
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	624,479	602,540
Pass | Land - acquisition & development
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	152,984	123,028
Pass | Land - consumer lot loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	101,249	103,787
Pass | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,378,803	1,295,261
Pass | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,421,602	1,391,996
Pass | Commercial & industrial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,093,405	1,054,972
Pass | HELOC
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	130,330	144,229
Pass | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	173,285	84,984
Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 27,197	$ 26,760
Total grade as a % of total gross loans	0.20%	0.20%
Special mention | Single-family residential
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 0	$ 0
Special mention | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,937	0
Special mention | Construction - custom
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Special mention | Land - acquisition & development
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	207
Special mention | Land - consumer lot loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Special mention | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,633	5,795
Special mention | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	7,114	5,944
Special mention | Commercial & industrial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	16,513	14,814
Special mention | HELOC
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Special mention | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 97,944	$ 107,675
Total grade as a % of total gross loans	0.80%	0.90%
Substandard | Single-family residential
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 32,870	$ 39,775
Substandard | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	2,427	3,070
Substandard | Construction - custom
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	91
Substandard | Land - acquisition & development
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	2,220	1,073
Substandard | Land - consumer lot loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	787	618
Substandard | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	4,689	2,092
Substandard | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	23,452	36,670
Substandard | Commercial & industrial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	30,956	23,574
Substandard | HELOC
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	522	621
Substandard | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	21	91
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 0	$ 0
Total grade as a % of total gross loans	0.00%	0.00%
Doubtful | Single-family residential
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 0	$ 0
Doubtful | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Doubtful | Construction - custom
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Doubtful | Land - acquisition & development
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Doubtful | Land - consumer lot loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Doubtful | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Doubtful | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Doubtful | Commercial & industrial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Doubtful | HELOC
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Doubtful | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Loss
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 0	$ 0
Total grade as a % of total gross loans	0.00%	0.00%
Loss | Single-family residential
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 0	$ 0
Loss | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Loss | Construction - custom
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Loss | Land - acquisition & development
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Loss | Land - consumer lot loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Loss | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Loss | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Loss | Commercial & industrial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Loss | HELOC
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Loss | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 0	$ 0

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

X

- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

+ Details

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

X

- Definition

Grade as Percentage of Total Gross Loans

+ References

No definition available.

+ Details

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

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:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=wfsl_LossMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: