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Acquisitions - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 1 Months Ended 3 Months Ended 1 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Jun. 30, 2013
WoodCrafters Home Products, LLC
Mar. 31, 2014
WoodCrafters Home Products, LLC
Jun. 30, 2013
WoodCrafters Home Products, LLC
Customer Relationships
Jun. 30, 2013
WoodCrafters Home Products, LLC
Technology
Business Acquisition [Line Items]            
Percentage of ownership acquired     100.00%      
Business acquisition purchase price     $ 302      
Net sales 966.2 890.0   50.0    
Operating income (Loss) 62.1 56.6   5.0    
Identifiable intangible assets         $ 75.9 $ 9.6
Amortizable identifiable intangible assets, estimated useful life         18 years 10 years