Impairment of Goodwill and Other Assets, Restructuring Costs - Schedule of Asset Impairment Charges (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 02, 2025	Jan. 28, 2024	Jan. 29, 2023
Impairment of Long-Lived Assets and Other Charges [Line Items]
lululemon Studio Mirror provision	$ 0	$ 23,709	$ 62,928
Impairment of assets:
Impairment of goodwill and other assets, restructuring costs	0	74,501	407,913
Income tax effects of charges	0	(26,085)	(28,171)
Lululemon Studio
Impairment of Long-Lived Assets and Other Charges [Line Items]
lululemon Studio Mirror provision	0	23,709	62,928
Impairment of assets:
Acquisition of the Mexico operations	0	0	362,492
Impairment of intangible assets	0	16,951	40,585
Impairment of cloud computing arrangement implementation costs	0	16,074	0
Impairment of property and equipment	0	11,161	4,836
Impairment of assets	0	44,186	407,913
Restructuring costs	0	30,315	0
Impairment of goodwill and other assets, restructuring costs	0	74,501	407,913
Total pre-tax charges	0	98,210	470,841
Income tax effects of charges	0	(26,085)	(28,171)
Total after-tax charges	$ 0	$ 72,125	$ 442,670