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Commitments and Contingencies (Details) - USD ($)
$ in Millions
3 Months Ended
Oct. 01, 2017
Apr. 02, 2017
Commitments and contingencies    
Estimated loss covered by insurance   $ 1.0
Insurance proceeds $ 0.9  
Insurance claim receivable $ 0.1  
Capital lease agreements | Minimum    
Commitments and contingencies    
Interest rate (as a percent) 3.00%  
Capital lease agreements | Maximum    
Commitments and contingencies    
Interest rate (as a percent) 6.30%