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Goodwill and Identifiable Intangible Assets - Change in Net Carrying Amount of Goodwill by Segment (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Goodwill [Line Items]    
Beginning Balance [1] $ 1,833.8 $ 1,755.3
Translation adjustments 6.5 (1.2)
Acquisition-related adjustments 71.7 79.7
Ending Balance [1] 1,912.0 1,833.8
Cabinets [Member]    
Goodwill [Line Items]    
Beginning Balance [1] 924.3 937.7
Translation adjustments 2.0 0.8
Acquisition-related adjustments   (14.2)
Ending Balance [1] 926.3 924.3
Plumbing [Member]    
Goodwill [Line Items]    
Beginning Balance [1] 670.2 578.6
Translation adjustments 3.3 (2.3)
Acquisition-related adjustments 71.7 93.9
Ending Balance [1] 745.2 670.2
Doors [Member]    
Goodwill [Line Items]    
Beginning Balance [1] 143.0 143.0
Ending Balance [1] 143.0 143.0
Security [Member]    
Goodwill [Line Items]    
Beginning Balance [1] 96.3 96.0
Translation adjustments 1.2 0.3
Ending Balance [1] $ 97.5 $ 96.3
[1] Net of accumulated impairment losses of $399.5 million in the Doors segment.