XML 22 R31.htm IDEA: XBRL DOCUMENT v2.4.0.6

Loans Receivable (excluding Covered Loans) (Loan Modifications) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2012 Contracts	Jun. 30, 2011 Contracts	Jun. 30, 2012 Contracts	Jun. 30, 2011 Contracts
Financing Receivable, Modifications [Line Items]
Number of Contracts (in contracts)	30	14	101	33
Recorded Investment	$ 8,225	$ 7,288	$ 22,290	$ 11,776
Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts (in contracts)	30	10	97	29
Recorded Investment	8,225	3,295	21,687	7,783
Construction, Speculative [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts (in contracts)	0	0	0	0
Recorded Investment	0	0	0	0
Construction, Custom [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts (in contracts)	0	0	0	0
Recorded Investment	0	0	0	0
Land, Acquisition and Development [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts (in contracts)	0	0	0	0
Recorded Investment	0	0	0	0
Land, Consumer Lot Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts (in contracts)	0	3	4	3
Recorded Investment	0	404	603	404
Multi Family Housing [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts (in contracts)	0	1	0	1
Recorded Investment	0	3,589	0	3,589
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts (in contracts)	0	0	0	0
Recorded Investment	0	0	0	0
Commercial and Industrial Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts (in contracts)	0	0	0	0
Recorded Investment	0	0	0	0
Home Equity Line of Credit [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts (in contracts)	0	0	0	0
Recorded Investment	0	0	0	0
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts (in contracts)	0	0	0	0
Recorded Investment	$ 0	$ 0	$ 0	$ 0

X

- Details

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

X

- Definition

Financing Receivable, Modifications, Number of Contracts that Subsequently Defaulted

+ References

No definition available.

+ Details

Name:	wafd_FinancingReceivableModificationsNumberOfContractsThatSubsequentlyDefaulted
Namespace Prefix:	wafd_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Financing Receivable, Modifications, Recorded Investment During the Period

+ References

No definition available.

+ Details

Name:	wafd_FinancingReceivableModificationsRecordedInvestmentDuringPeriod
Namespace Prefix:	wafd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration