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Williams-Sonoma, Inc. 401(k) Plan and Other Employee Benefits - Additional Information (Detail) (USD $)	12 Months Ended
	Feb. 02, 2014 Y	Feb. 03, 2013	Jan. 29, 2012
Schedule Of Defined Contribution Pension And Other Postretirement Plans Disclosure [Line Items]
Employer matching contribution	50.00%
Defined contribution retirement plan, maximum percentage of salary deferral contributions subject to match by employer	6.00%
Years of service required to be eligible for company matching contributions	1
Matching contribution, vesting percentage per year during first five years of employment	20.00%
Contributions to the profit sharing plan	$ 5,538,000	$ 5,517,000	$ 4,862,000
Deferred compensation liabilities included in other long-term obligations	15,190,000	12,148,000
Cash surrender value of the life insurance policies	$ 16,652,000	$ 14,137,000
Eligible Employees
Schedule Of Defined Contribution Pension And Other Postretirement Plans Disclosure [Line Items]
Defined contribution retirement plan, maximum percentage of salary deferral contributions by employee	75.00%
Highly-Compensated Employees
Schedule Of Defined Contribution Pension And Other Postretirement Plans Disclosure [Line Items]
Defined contribution retirement plan, maximum percentage of salary deferral contributions by employee	7.00%

X

- Definition

Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

+ 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 210.5-02.17)

-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 17

-Article 5



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 4

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6812-107765

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X

- Definition

The increase in the fair value of plan assets from contributions made by the employer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)(3)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

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- Definition

Percentage employer matches of the employee's percentage contribution matched.

+ References

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- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for deferred compensation arrangements payable after one year (or the operating cycle, if longer) other than those specified elsewhere in the taxonomy.

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- Definition

Percentage of employer's matching contributions to a defined contribution plan that vests during first five years of employment.

+ References

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- Definition

Years of service required to be completed before being eligible to receive company matching contributions.

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