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Acquisitions - Narrative (Detail) - USD ($)
$ in Millions
Apr. 02, 2019
Jan. 25, 2019
Jan. 31, 2018
Jun. 29, 2019
Dec. 29, 2018
Jun. 30, 2018
Business Acquisition [Line Items]            
Goodwill       $ 907.0 $ 902.2  
TMB GeoMarketing Limited            
Business Acquisition [Line Items]            
Cash purchase price of assets   $ 1.3        
George A. Sturdevant, Inc. (d/b/a Fastorq)            
Business Acquisition [Line Items]            
Goodwill           $ 2.6
Cash purchase price of assets     $ 3.0      
Power Hawk Technologies Inc            
Business Acquisition [Line Items]            
Cash purchase price of acquisition $ 8.0          
Goodwill       $ 6.9