Restructuring Provision - Summary of Corporate Initiative Costs by Operating Segment (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Oct. 31, 2020	Oct. 31, 2020
Restructuring Cost And Reserve [Line Items]
Provision	$ 781	$ 15,389
Cost of Sales
Restructuring Cost And Reserve [Line Items]
Provision	43	3,551
Selling, General and Administrative
Restructuring Cost And Reserve [Line Items]
Provision	738	11,838
Watch and Accessory Brands
Restructuring Cost And Reserve [Line Items]
Provision	781	15,389
Watch and Accessory Brands | United States
Restructuring Cost And Reserve [Line Items]
Provision	594	11,929
Watch and Accessory Brands | International
Restructuring Cost And Reserve [Line Items]
Provision	187	3,460
Company Stores
Restructuring Cost And Reserve [Line Items]
Provision	$ 0	$ 0