REVENUE - Net Sales by Product Category (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue from External Customer [Line Items]
Total Sales	$ 264.2	$ 340.0
Workplace
Revenue from External Customer [Line Items]
Total Sales	150.4	227.5
Workplace | Commercial
Revenue from External Customer [Line Items]
Total Sales	123.1	211.4
Workplace | Residential
Revenue from External Customer [Line Items]
Total Sales	27.3	16.1
Lifestyle
Revenue from External Customer [Line Items]
Total Sales	113.8	112.5
Lifestyle | Commercial
Revenue from External Customer [Line Items]
Total Sales	38.0	58.2
Lifestyle | Residential
Revenue from External Customer [Line Items]
Total Sales	$ 75.8	$ 54.3