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Debt (Details)
CAD in Millions
3 Months Ended
Jun. 03, 2017
USD ($)
May 28, 2016
USD ($)
Jun. 09, 2017
USD ($)
Jun. 03, 2017
CAD
Jun. 03, 2017
USD ($)
Mar. 04, 2017
USD ($)
Line of Credit Facility [Line Items]            
Interest payments $ 500,000 $ 100,000        
Revolving credit facility            
Line of Credit Facility [Line Items]            
Maximum borrowing capacity       CAD 12.0 $ 175,000,000  
Outstanding borrowings         51,000,000 $ 45,000,000
Revolving credit facility | Subsequent event            
Line of Credit Facility [Line Items]            
Maximum borrowing capacity     $ 335,000,000.0      
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