XML 79 R66.htm IDEA: XBRL DOCUMENT v3.10.0.1
Acquisition - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended 12 Months Ended
Apr. 30, 2016
Dec. 31, 2016
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2015
Business Acquisition [Line Items]          
Business acquisition, goodwill   $ 9.5 $ 9.5 $ 9.5 $ 6.3
Business combination, amount   $ 17.3      
BenBilt [Member]          
Business Acquisition [Line Items]          
Business acquisition, goodwill $ 3.2        
Business acquisition, intangibles 6.7        
Business acquisition, property, plant and equipment 4.5        
Business combination, amount $ 17.3