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Acquisitions - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
May. 31, 2015
Mar. 31, 2015
Mar. 31, 2016
Mar. 31, 2015
Business Acquisition [Line Items]        
Operating income     $ 95.5 $ 67.3
Net sales     1,106.5 $ 950.8
Payment to acquire business   $ 6.0    
Norcraft Companies, Inc [Member]        
Business Acquisition [Line Items]        
Business acquisition purchase price $ 648.6      
Operating income     3.0  
Acquisition related transaction costs     15.2  
Net sales     89.0  
Goodwill expected to be deductible for income tax purposes     60.1  
Identifiable intangible assets, customer relationships     210.0  
Indefinite intangible assets, tradename     $ 150.0  
Payment to acquire business $ 15.5      
Norcraft Companies, Inc [Member] | Customer Relationships        
Business Acquisition [Line Items]        
Amortizable identifiable intangible assets, estimated useful life     20 years