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Debt (Details)
3 Months Ended
Jun. 02, 2018
USD ($)
Jun. 03, 2017
USD ($)
Jun. 02, 2018
CAD ($)
Jun. 02, 2018
USD ($)
Mar. 03, 2018
CAD ($)
Mar. 03, 2018
USD ($)
Line of Credit Facility [Line Items]            
Document Period End Date Jun. 02, 2018          
Interest payments $ 1,800,000 $ 500,000        
Revolving credit facility            
Line of Credit Facility [Line Items]            
Maximum borrowing capacity     $ 12,000,000 $ 335,000,000.0    
Outstanding borrowings     $ 700,000 193,000,000 $ 0 $ 195,000,000
Industrial Revenue Bonds            
Line of Credit Facility [Line Items]            
Debt       20,400,000    
Industrial Revenue Bonds | Letter of credit            
Line of Credit Facility [Line Items]            
Debt       23,500,000    
Canada | Industrial Revenue Bonds            
Line of Credit Facility [Line Items]            
Debt       $ 400,000