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Significant Accounting Policies - Concentration of Risk (Details)	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Watches | Production | Production concentration
Concentration of Risk
Concentration risk percentage	43.00%
Licensed products | Sales of licensed products | Licensed products
Concentration of Risk
Concentration risk percentage	47.30%	45.70%	46.60%
MICHAEL KORS | Sales of licensed products | Licensed products
Concentration of Risk
Concentration risk percentage	17.00%	19.20%	22.60%
ARMANI | Sales of licensed products | Licensed products
Concentration of Risk
Concentration risk percentage	19.10%	15.20%	12.00%

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