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Summary of Accounting Policies - Additional Information (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Jun. 30, 2018
Jul. 01, 2017
Revenue, Major Customer [Line Items]        
Cost of goods sold $ 467.5 $ 458.2 $ 931.4 $ 897.0
Operating income 250.9 238.3 485.5 461.0
Operating expenses 294.0 279.5 587.9 557.6
Other income (expense) – net (0.6) (1.9) $ 2.2 (4.3)
Revenue, performance obligation, term of contract     12 months  
Franchise fee revenue $ 4.2 3.4 $ 8.1 6.9
Maximum        
Revenue, Major Customer [Line Items]        
Revenue, performance obligation, term of contract     60 months  
Transferred at Point in Time | Ship and Bill Performance Obligations | Sales Revenue, Net        
Revenue, Major Customer [Line Items]        
Concentration risk, percentage     90.00%  
Accounting Standards Update 2017-07        
Revenue, Major Customer [Line Items]        
Cost of goods sold   458.2   897.0
Operating expenses   279.5   557.6
Other income (expense) – net   (1.9)   (4.3)
Accounting Standards Update 2017-07 | Restatement Adjustment        
Revenue, Major Customer [Line Items]        
Cost of goods sold   (0.2)   (0.5)
Operating income   0.2    
Operating expenses       (0.2)
Accounting Standards Update 2017-07 | Scenario, Previously Reported        
Revenue, Major Customer [Line Items]        
Cost of goods sold   458.4   897.5
Operating expenses   279.3   557.8
Other income (expense) – net   $ (1.9)   $ (3.6)