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Loans Receivable (excluding Covered Loans) - Loans Receivable by Geographic Location (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 8,669,717	$ 7,990,545
Ratio of loans by geographic location to total loans	100.00%
Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	3,948,341
Ratio of loans by geographic location to total loans	45.80%
Oregon
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	1,381,176
Ratio of loans by geographic location to total loans	16.10%
Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	961,386
Ratio of loans by geographic location to total loans	11.00%
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	674,618
Ratio of loans by geographic location to total loans	7.80%
Utah
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	576,746
Ratio of loans by geographic location to total loans	6.70%
Idaho
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	398,006
Ratio of loans by geographic location to total loans	4.50%
New Mexico
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	381,995
Ratio of loans by geographic location to total loans	4.20%
Texas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	215,937
Ratio of loans by geographic location to total loans	2.40%
Nevada
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	131,512
Ratio of loans by geographic location to total loans	1.50%
Single-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	5,572,244	5,373,950
Ratio of loans by geographic location to total loans	64.60%
Percentage of loans by geographic area as a percentage of loan type	100.00%
Single-family residential | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	2,711,711
Ratio of loans by geographic location to total loans	31.60%
Percentage of loans by geographic area as a percentage of loan type	48.70%
Single-family residential | Oregon
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	784,794
Ratio of loans by geographic location to total loans	9.10%
Percentage of loans by geographic area as a percentage of loan type	14.10%
Single-family residential | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	600,306
Ratio of loans by geographic location to total loans	6.90%
Percentage of loans by geographic area as a percentage of loan type	10.80%
Single-family residential | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	206,586
Ratio of loans by geographic location to total loans	2.40%
Percentage of loans by geographic area as a percentage of loan type	3.10%
Single-family residential | Utah
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	471,248
Ratio of loans by geographic location to total loans	5.40%
Percentage of loans by geographic area as a percentage of loan type	3.70%
Single-family residential | Idaho
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	323,320
Ratio of loans by geographic location to total loans	3.70%
Percentage of loans by geographic area as a percentage of loan type	8.50%
Single-family residential | New Mexico
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	174,102
Ratio of loans by geographic location to total loans	2.00%
Percentage of loans by geographic area as a percentage of loan type	5.80%
Single-family residential | Texas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	180,950
Ratio of loans by geographic location to total loans	2.10%
Percentage of loans by geographic area as a percentage of loan type	3.20%
Single-family residential | Nevada
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	119,227
Ratio of loans by geographic location to total loans	1.40%
Percentage of loans by geographic area as a percentage of loan type	2.10%
Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	920,285	835,598
Ratio of loans by geographic location to total loans	10.50%
Percentage of loans by geographic area as a percentage of loan type	100.00%
Multi-family | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	315,584
Ratio of loans by geographic location to total loans	3.60%
Percentage of loans by geographic area as a percentage of loan type	34.30%
Multi-family | Oregon
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	278,112
Ratio of loans by geographic location to total loans	3.20%
Percentage of loans by geographic area as a percentage of loan type	30.20%
Multi-family | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	182,645
Ratio of loans by geographic location to total loans	2.10%
Percentage of loans by geographic area as a percentage of loan type	19.80%
Multi-family | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	688
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	5.80%
Multi-family | Utah
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	49,755
Ratio of loans by geographic location to total loans	0.60%
Percentage of loans by geographic area as a percentage of loan type	0.10%
Multi-family | Idaho
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	25,294
Ratio of loans by geographic location to total loans	0.30%
Percentage of loans by geographic area as a percentage of loan type	5.40%
Multi-family | New Mexico
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	53,002
Ratio of loans by geographic location to total loans	0.60%
Percentage of loans by geographic area as a percentage of loan type	2.70%
Multi-family | Texas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	12,852
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	1.40%
Multi-family | Nevada
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	2,353
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.30%
Land - acquisition & development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	80,359	81,660
Ratio of loans by geographic location to total loans	0.90%
Percentage of loans by geographic area as a percentage of loan type	100.00%
Land - acquisition & development | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	46,091
Ratio of loans by geographic location to total loans	0.50%
Percentage of loans by geographic area as a percentage of loan type	57.30%
Land - acquisition & development | Oregon
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	5,655
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	7.00%
Land - acquisition & development | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	3,201
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	4.00%
Land - acquisition & development | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	18.60%
Land - acquisition & development | Utah
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	5,430
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Land - acquisition & development | Idaho
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	2,277
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	6.80%
Land - acquisition & development | New Mexico
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	14,923
Ratio of loans by geographic location to total loans	0.20%
Percentage of loans by geographic area as a percentage of loan type	2.80%
Land - acquisition & development | Texas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	2,782
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	3.50%
Land - acquisition & development | Nevada
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Land - consumer lot loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	111,130	124,984
Ratio of loans by geographic location to total loans	1.20%
Percentage of loans by geographic area as a percentage of loan type	100.00%
Land - consumer lot loans | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	61,525
Ratio of loans by geographic location to total loans	0.70%
Percentage of loans by geographic area as a percentage of loan type	55.30%
Land - consumer lot loans | Oregon
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	19,738
Ratio of loans by geographic location to total loans	0.20%
Percentage of loans by geographic area as a percentage of loan type	17.80%
Land - consumer lot loans | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	10,040
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	9.00%
Land - consumer lot loans | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	2.70%
Land - consumer lot loans | Utah
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	5,293
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Land - consumer lot loans | Idaho
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	9,479
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	4.80%
Land - consumer lot loans | New Mexico
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	2,946
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	8.50%
Land - consumer lot loans | Texas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	629
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.60%
Land - consumer lot loans | Nevada
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	1,480
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	1.30%
Construction - custom
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	385,824	302,722
Ratio of loans by geographic location to total loans	4.40%
Percentage of loans by geographic area as a percentage of loan type	100.00%
Construction - custom | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	211,474
Ratio of loans by geographic location to total loans	2.40%
Percentage of loans by geographic area as a percentage of loan type	54.80%
Construction - custom | Oregon
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	53,218
Ratio of loans by geographic location to total loans	0.60%
Percentage of loans by geographic area as a percentage of loan type	13.80%
Construction - custom | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	42,326
Ratio of loans by geographic location to total loans	0.50%
Percentage of loans by geographic area as a percentage of loan type	11.00%
Construction - custom | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	5.40%
Construction - custom | Utah
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	28,107
Ratio of loans by geographic location to total loans	0.30%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Construction - custom | Idaho
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	16,008
Ratio of loans by geographic location to total loans	0.20%
Percentage of loans by geographic area as a percentage of loan type	7.30%
Construction - custom | New Mexico
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	21,024
Ratio of loans by geographic location to total loans	0.20%
Percentage of loans by geographic area as a percentage of loan type	4.10%
Construction - custom | Texas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	7,941
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	2.10%
Construction - custom | Nevada
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	5,726
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	1.50%
Construction - speculative
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	140,060	130,778
Ratio of loans by geographic location to total loans	1.60%
Percentage of loans by geographic area as a percentage of loan type	100.00%
Construction - speculative | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	68,668
Ratio of loans by geographic location to total loans	0.80%
Percentage of loans by geographic area as a percentage of loan type	49.00%
Construction - speculative | Oregon
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	31,210
Ratio of loans by geographic location to total loans	0.40%
Percentage of loans by geographic area as a percentage of loan type	22.30%
Construction - speculative | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	9,393
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	6.70%
Construction - speculative | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	7.10%
Construction - speculative | Utah
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	5,640
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Construction - speculative | Idaho
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	12,195
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	4.00%
Construction - speculative | New Mexico
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	9,893
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	8.70%
Construction - speculative | Texas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	3,061
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	2.20%
Construction - speculative | Nevada
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	752,957	625,293
Ratio of loans by geographic location to total loans	8.60%
Percentage of loans by geographic area as a percentage of loan type	100.00%
Commercial real estate | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	372,239
Ratio of loans by geographic location to total loans	4.30%
Percentage of loans by geographic area as a percentage of loan type	49.60%
Commercial real estate | Oregon
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	161,401
Ratio of loans by geographic location to total loans	1.90%
Percentage of loans by geographic area as a percentage of loan type	21.40%
Commercial real estate | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	92,817
Ratio of loans by geographic location to total loans	1.10%
Percentage of loans by geographic area as a percentage of loan type	12.30%
Commercial real estate | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	19,160
Ratio of loans by geographic location to total loans	0.20%
Percentage of loans by geographic area as a percentage of loan type	12.00%
Commercial real estate | Utah
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	3,319
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	2.50%
Commercial real estate | Idaho
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	3,656
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.40%
Commercial real estate | New Mexico
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	90,288
Ratio of loans by geographic location to total loans	1.00%
Percentage of loans by geographic area as a percentage of loan type	0.50%
Commercial real estate | Texas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	7,722
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	1.00%
Commercial real estate | Nevada
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	2,355
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.30%
Commercial & industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	434,088	326,450
Ratio of loans by geographic location to total loans	5.00%
Percentage of loans by geographic area as a percentage of loan type	100.00%
Commercial & industrial | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	87,312
Ratio of loans by geographic location to total loans	1.00%
Percentage of loans by geographic area as a percentage of loan type	20.10%
Commercial & industrial | Oregon
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	31,547
Ratio of loans by geographic location to total loans	0.40%
Percentage of loans by geographic area as a percentage of loan type	7.30%
Commercial & industrial | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	1,078
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.20%
Commercial & industrial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	309,855
Ratio of loans by geographic location to total loans	3.60%
Percentage of loans by geographic area as a percentage of loan type	0.70%
Commercial & industrial | Utah
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	297
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	71.40%
Commercial & industrial | Idaho
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	769
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.10%
Commercial & industrial | New Mexico
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	3,230
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.20%
Commercial & industrial | Texas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Commercial & industrial | Nevada
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	138,315	55,479
Ratio of loans by geographic location to total loans	1.60%
Percentage of loans by geographic area as a percentage of loan type	100.00%
Consumer | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	16
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Consumer | Oregon
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Consumer | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Consumer | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	138,299
Ratio of loans by geographic location to total loans	1.60%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Consumer | Utah
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	100.00%
Consumer | Idaho
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Consumer | New Mexico
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Consumer | Texas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.00%
Consumer | Nevada
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.00%
HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	134,455	133,631
Ratio of loans by geographic location to total loans	1.60%
Percentage of loans by geographic area as a percentage of loan type	100.00%
HELOC | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	73,721
Ratio of loans by geographic location to total loans	0.90%
Percentage of loans by geographic area as a percentage of loan type	54.80%
HELOC | Oregon
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	15,501
Ratio of loans by geographic location to total loans	0.20%
Percentage of loans by geographic area as a percentage of loan type	11.50%
HELOC | Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	19,580
Ratio of loans by geographic location to total loans	0.20%
Percentage of loans by geographic area as a percentage of loan type	14.60%
HELOC | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	30
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	9.40%
HELOC | Utah
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	7,657
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	0.00%
HELOC | Idaho
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	5,008
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	5.70%
HELOC | New Mexico
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	12,587
Ratio of loans by geographic location to total loans	0.10%
Percentage of loans by geographic area as a percentage of loan type	3.70%
HELOC | Texas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	0
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.00%
HELOC | Nevada
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 371
Ratio of loans by geographic location to total loans	0.00%
Percentage of loans by geographic area as a percentage of loan type	0.30%

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- Details

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- 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://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

+ Details

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X

- Definition

Loan Receivable, Percentage by Geographic Area as Percentage of Loan Type

+ References

No definition available.

+ Details

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X

- Definition

Ratio of Loans by Geographic Location to Total Loans

+ References

No definition available.

+ Details

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Namespace Prefix:	wfsl_
Data Type:	num:percentItemType
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