SEGMENT INFORMATION - Summary of Segment Results from Continuing Operations (Details) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) segment	Jun. 30, 2017 USD ($)
Segment Reporting [Abstract]
Number of operating segments \| segment			4
Number of reportable segments \| segment			4
Segment Reporting Information [Line Items]
Net sales	$ 1,102.5	$ 989.3	$ 2,131.3	$ 1,949.6
Total Sales	1,185.5	1,062.9	2,292.9	2,101.8
EBIT	121.1	122.3	228.5	238.2
Residential Products
Segment Reporting Information [Line Items]
Total Sales	443.5	412.0	846.2	808.1
EBIT	40.0	50.2	75.0	92.7
Industrial Products
Segment Reporting Information [Line Items]
Total Sales	170.5	139.2	322.9	274.6
EBIT	13.4	7.1	22.4	15.9
Furniture Products
Segment Reporting Information [Line Items]
Total Sales	295.0	271.6	579.2	542.7
EBIT	16.3	20.3	34.3	40.6
Specialized Products
Segment Reporting Information [Line Items]
Total Sales	276.5	240.1	544.6	476.4
EBIT	51.9	44.1	98.0	87.1
Operating segments
Segment Reporting Information [Line Items]
Net sales	1,102.5	989.3	2,131.3	1,949.6
Operating segments \| Residential Products
Segment Reporting Information [Line Items]
Net sales	438.8	407.8	836.9	799.1
Operating segments \| Industrial Products
Segment Reporting Information [Line Items]
Net sales	96.4	75.9	178.4	145.7
Operating segments \| Furniture Products
Segment Reporting Information [Line Items]
Net sales	291.4	267.2	572.7	532.0
Operating segments \| Specialized Products
Segment Reporting Information [Line Items]
Net sales	275.9	238.4	543.3	472.8
Intersegment eliminations
Segment Reporting Information [Line Items]
Net sales	83.0	73.6	161.6	152.2
Intersegment eliminations and other	(0.5)	0.6	(1.2)	1.9
Intersegment eliminations \| Residential Products
Segment Reporting Information [Line Items]
Net sales	4.7	4.2	9.3	9.0
Intersegment eliminations \| Industrial Products
Segment Reporting Information [Line Items]
Net sales	74.1	63.3	144.5	128.9
Intersegment eliminations \| Furniture Products
Segment Reporting Information [Line Items]
Net sales	3.6	4.4	6.5	10.7
Intersegment eliminations \| Specialized Products
Segment Reporting Information [Line Items]
Net sales	$ 0.6	$ 1.7	$ 1.3	$ 3.6

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