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ACQUISITIONS - Narrative (Details)
$ in Millions
3 Months Ended
Jan. 31, 2018
USD ($)
Mar. 31, 2018
USD ($)
Mar. 31, 2017
USD ($)
acquisition
Dec. 31, 2017
USD ($)
Business Acquisition [Line Items]        
Contingent consideration, liability   $ 17.3   $ 16.5
Contingent consideration, current liability   10.0   8.9
Contingent consideration, long-term liability   7.3   7.6
Number of businesses acquired (acquisition) | acquisition     2  
Goodwill   846.8   $ 822.2
Purchase price   $ 0.0 $ 2.6  
Residential Products and Furniture Products | Distributor and Installer of Geosynthetic Products, Carpet Cushion, and Surface-critical Bent Tube Components        
Business Acquisition [Line Items]        
Goodwill     18.7  
Residential Products        
Business Acquisition [Line Items]        
Goodwill     6.8  
Furniture Products        
Business Acquisition [Line Items]        
Goodwill     $ 11.9  
Precision Hydraulic Cylinders        
Business Acquisition [Line Items]        
Purchase price $ 84.8      
Asian Joint Venture        
Business Acquisition [Line Items]        
Percentage of voting interest acquired     20.00%  
Purchase price     $ 2.6