XML 56 R18.htm IDEA: XBRL DOCUMENT v3.21.2

Interest Receivable

12 Months Ended

Sep. 30, 2021

Receivables [Abstract]

Interest Receivable

INTEREST RECEIVABLE

The following table provides a summary of interest receivable by interest-earning asset type.

			September 30, 2021						September 30, 2020
			(In thousands)
Loans receivable			$	46,234					$	48,704
Mortgage-backed securities			2,159						3,071
Investment securities			2,243						2,024
			$	50,636					$	53,799

X

- References

No definition available.

+ Details

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

X

- Definition

Interest Receivable [Text Block]

+ References

No definition available.

+ Details

Name:	wfsl_InterestReceivableTextBlock
Namespace Prefix:	wfsl_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration