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Summary of Significant Accounting Policies - Useful Lives of Property and Equipment (Details)
12 Months Ended
Feb. 01, 2020
Buildings and building equipment | Minimum  
Property and equipment amortized over the estimated useful life of related assets  
Property and equipment, useful life 20 years
Buildings and building equipment | Maximum  
Property and equipment amortized over the estimated useful life of related assets  
Property and equipment, useful life 45 years
Computer hardware, software and equipment | Minimum  
Property and equipment amortized over the estimated useful life of related assets  
Property and equipment, useful life 3 years
Computer hardware, software and equipment | Maximum  
Property and equipment amortized over the estimated useful life of related assets  
Property and equipment, useful life 10 years
Furniture and fixtures  
Property and equipment amortized over the estimated useful life of related assets  
Property and equipment, useful life 10 years