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Goodwill and Identifiable Intangible Assets - Change in Net Carrying Amount of Goodwill by Segment (Detail)
$ in Millions
6 Months Ended
Jun. 30, 2017
USD ($)
Goodwill [Line Items]  
Beginning Balance $ 1,833.8 [1]
Year-to-date translation adjustments 2.0
Acquisition-related adjustments (3.7)
Ending Balance 1,832.1 [1]
Cabinets [Member]  
Goodwill [Line Items]  
Beginning Balance 924.3 [1]
Year-to-date translation adjustments 0.7
Ending Balance 925.0 [1]
Plumbing [Member]  
Goodwill [Line Items]  
Beginning Balance 670.2 [1]
Year-to-date translation adjustments 1.0
Acquisition-related adjustments (3.7)
Ending Balance 667.5 [1]
Doors [Member]  
Goodwill [Line Items]  
Beginning Balance 143.0 [1]
Ending Balance 143.0 [1]
Security [Member]  
Goodwill [Line Items]  
Beginning Balance 96.3 [1]
Year-to-date translation adjustments 0.3
Ending Balance $ 96.6 [1]
[1] Net of accumulated impairment losses of $399.5 million in the Doors segment.