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Leases - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 24, 2019
Mar. 25, 2018
Dec. 30, 2018
Rent Expenses $ 16.4 $ 15.4  
Finance Lease   $ 2.6  
Potential future payments 2.3   $ 2.4
Operating Lease [Member]      
Future minimum rental commitments $ 43.0    
Lease Term 15 years    
Finance Lease [Member]      
Future minimum rental commitments $ 28.7    
Lease Term 15 years