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Debt (Details)
3 Months Ended 9 Months Ended
Dec. 02, 2017
USD ($)
Dec. 02, 2017
CAD
Nov. 26, 2016
USD ($)
Dec. 02, 2017
USD ($)
Mar. 04, 2017
CAD
Mar. 04, 2017
USD ($)
Line of Credit Facility [Line Items]            
Document Period End Date   Dec. 02, 2017        
Interest payments $ 3,600,000   $ 500,000      
Revolving credit facility            
Line of Credit Facility [Line Items]            
Maximum borrowing capacity   CAD 12,000,000   $ 335,000,000.0    
Outstanding borrowings   CAD 1,500,000   209,000,000 CAD 0 $ 45,000,000
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       26,300,000    
Canada | Industrial Revenue Bonds            
Line of Credit Facility [Line Items]            
Debt       $ 400,000