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Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions		12 Months Ended
	Aug. 02, 2021 USD ($)	Jan. 01, 2022 USD ($)	Jan. 02, 2021 USD ($)	Dec. 28, 2019 USD ($)
Accounting Policies [Line Items]
Total purchase consideration				$ 25.2
Weeks in fiscal year		52	53	52
Advertising expense		$ 195.4	$ 135.6	$ 119.4
Prepaid advertising		$ 3.6	$ 1.2
Sweaty Betty [Member]
Accounting Policies [Line Items]
Total purchase consideration	$ 417.4
Cash Acquired from Acquisition	$ 7.4
Minimum [Member] \| Building [Member]
Accounting Policies [Line Items]
Depreciable life		14 years
Minimum [Member] \| Leasehold Improvements [Member]
Accounting Policies [Line Items]
Depreciable life		5 years
Minimum [Member] \| Furniture Fixture Equipment [Member]
Accounting Policies [Line Items]
Depreciable life		3 years
Minimum [Member] \| Software [Member]
Accounting Policies [Line Items]
Depreciable life		3 years
Maximum [Member] \| Building [Member]
Accounting Policies [Line Items]
Depreciable life		20 years
Maximum [Member] \| Leasehold Improvements [Member]
Accounting Policies [Line Items]
Depreciable life		15 years
Maximum [Member] \| Furniture Fixture Equipment [Member]
Accounting Policies [Line Items]
Depreciable life		10 years
Maximum [Member] \| Software [Member]
Accounting Policies [Line Items]
Depreciable life		5 years