Borrowing Arrangements - Additional Information (Detail) (USD $)	12 Months Ended
Feb. 02, 2014	Feb. 03, 2013
Debt Instrument [Line Items]
Memphis-based distribution facilities obligation	$ 3,753,000	$ 5,388,000
Amount outstanding under credit facility	0	0
Amount of borrowings under credit facility during period	0	0
Unsecured Revolving Line Of Credit
Debt Instrument [Line Items]
Current borrowing capacity	300,000,000
Maximum borrowing capacity including additional borrowing capacity	500,000,000
Credit facility, maturity date	Jun. 22, 2017
Interest rate description	We may elect interest rates calculated at (i) Bank of America's prime rate (or, if greater, the average rate on overnight federal funds plus one-half of one percent, or a rate based on LIBOR plus one percent) plus a margin based on our leverage ratio or (ii) LIBOR plus a margin based on our leverage ratio.
Unsecured Revolving Line Of Credit \| Maximum
Debt Instrument [Line Items]
Additional borrowing capacity	200,000,000
Standby Letters of Credit
Debt Instrument [Line Items]
Amount issued but undrawn under credit facility	3,070,000
Unsecured Letter Of Credit Facilities
Debt Instrument [Line Items]
Additional percentage over reference rate	2.00%
Interest rate description	Interest on unreimbursed amounts under the letter of credit facilities accrues at the lender's prime rate (or, if greater, the average rate on overnight federal funds plus one-half of one percent) plus 2.0%.
Maximum borrowing capacity under letter of credit facilities including additional borrowing capacity	70,000,000
Letter of credit facilities, maturity date	Aug. 29, 2014
Outstanding letter of credit facilities	$ 15,283,000
Latest expiration date possible for future letters of credit	Jan. 26, 2015
Federal Funds \| Unsecured Revolving Line Of Credit
Debt Instrument [Line Items]
Additional percentage over reference rate	0.50%
Federal Funds \| Unsecured Letter Of Credit Facilities
Debt Instrument [Line Items]
Additional percentage over reference rate	0.50%
Libor \| Unsecured Revolving Line Of Credit
Debt Instrument [Line Items]
Additional percentage over reference rate	1.00%

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Details

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount borrowed under the credit facility as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

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- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

+ Details

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Period Type:	duration

- Definition

Maximum amount borrowed under the credit facility at any time during the period.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Reflects when the letter of credit facilities terminates, which may be presented in a variety of ways (year, month and year, day, month and year, quarter).

+ References

No definition available.

+ Details

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Namespace Prefix:	wsm_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the letter of credit facilities without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facilities.

+ References

No definition available.

+ Details

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Namespace Prefix:	wsm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Expiration date for future letters of credit issued under the letter of credit facilities.

+ References

No definition available.

+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Additional borrowing capacity that may be requested upon notice to the lenders.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount available to be drawn upon by standby letter of credit beneficiaries under the credit facility as of the balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	wsm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying amount of the consolidated Variable Interest Entity's debt included in the reporting entity's statement of financial position.

+ References

No definition available.

+ Details

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Namespace Prefix:	wsm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant