Leases - Supplemental Cash Flow Information Related To Our Leases (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 28, 2024	Jan. 29, 2023	Jan. 30, 2022
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 322,293	$ 296,053	$ 279,005

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

No definition available.

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