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Acquisitions and Dispositions - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended 9 Months Ended
Sep. 30, 2016
May 31, 2016
Sep. 30, 2017
Acquisitions and Dispositions [Line Items]      
Loss on sale of product line     $ 2.4
TCL Manufacturing Ltd [Member]      
Acquisitions and Dispositions [Line Items]      
Business acquisition purchase price $ 166.0    
Business acquisition, liabilities assumed $ 3.0    
Goodwill expected to be deductible for income tax purposes     $ 49.0
Riobel [Member]      
Acquisitions and Dispositions [Line Items]      
Payment to acquire business   $ 94.6