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Commitments and Contingencies - Narrative (Detail)
$ in Millions
Apr. 30, 2020
USD ($)
Mar. 28, 2020
USD ($)
Dec. 28, 2019
USD ($)
Jan. 31, 2018
lease
Operating Leased Assets [Line Items]        
Range of possible loss (in excess)   $ 0.1    
Number of lease agreements | lease       3
Maximum potential amount of undiscounted future payments under the guarantee   27.7 $ 29.4  
Subsequent Event | Settled Litigation        
Operating Leased Assets [Line Items]        
Loss contingency accrual $ 27.2      
Loss contingency, insurance providers receivable $ 27.0      
ABL facility        
Operating Leased Assets [Line Items]        
Standby letters of credit outstanding   $ 43.3 $ 47.4