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Significant Accounting Policies - Property and Equipment (Detail) - USD ($)
$ in Millions
12 Months Ended
Jan. 30, 2021
Feb. 01, 2020
Feb. 02, 2019
Capitalized interest      
Capitalized Interest $ 5.6 $ 4.9 $ 3.1
Capitalized interest related to amortization of Convertible Notes debt discount $ 5.3 $ 3.7 $ 2.7
Building and building improvements      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 40 years    
Minimum | Machinery, equipment and aircraft      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 3 years    
Minimum | Furniture, fixtures and equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 3 years    
Minimum | Computer software      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 3 years    
Maximum | Machinery, equipment and aircraft      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 10 years    
Maximum | Furniture, fixtures and equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 7 years    
Maximum | Computer software      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 10 years