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Acquisitions - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
May. 12, 2015
Mar. 31, 2015
Jul. 31, 2014
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Business Acquisition [Line Items]                
Net sales       $ 1,165.1 $ 1,027.2 $ 2,115.9 $ 1,916.3  
Payment to acquire business   $ 6.0            
Norcraft Companies, Inc [Member]                
Business Acquisition [Line Items]                
Business acquisition purchase price $ 648.6              
Acquisition related transaction costs       13.8   14.9    
Net sales       46.0   46.0    
Identifiable intangible assets       200.0   $ 200.0    
Norcraft Companies, Inc [Member] | Customer Relationships                
Business Acquisition [Line Items]                
Amortizable identifiable intangible assets, estimated useful life           20 years    
Anaheim Manufacturing Company [Member]                
Business Acquisition [Line Items]                
Business acquisition purchase price               $ 28.9
Net sales       7.0   $ 15.0    
SentrySafe [Member]                
Business Acquisition [Line Items]                
Business acquisition purchase price     $ 116.7          
Net sales       $ 32.0   $ 68.0