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Supplemental Cash Flow Information Related To Our Leases (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Aug. 04, 2019	Aug. 04, 2019
Cash paid for amounts included in the measurement of operating lease liabilities:	$ 71,580	$ 141,394
Net additions to right-of-use assets	$ 63,871	$ 82,393

X

- Definition

Cash paid for amounts included in the measurement of operating lease liabilities.

+ References

No definition available.

+ Details

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

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- Definition

Net additions to right-of-use asset during the period.

+ References

No definition available.

+ Details

Name:	wsm_RightOfUseAssetsObtainedInExchangeForOperatingLeaseLiability
Namespace Prefix:	wsm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration