SEGMENT INFORMATION - Summary of Segment Results from Continuing Operations (Details) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) segment	Jun. 30, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments \| segment			4
Number of reportable segments \| segment			4
Net sales	$ 1,213.2	$ 1,102.5	$ 2,368.3	$ 2,131.3
Total Sales	1,295.3	1,185.5	2,536.0	2,292.9
EBIT	136.0	121.1	234.2	228.5
Depreciation and Amortization	50.0	33.8	96.3	67.2
Residential Products
Segment Reporting Information [Line Items]
Net sales	606.7	438.8	1,143.1	836.9
Total Sales	610.3	443.5	1,149.5	846.2
EBIT	44.4	40.0	76.3	75.0
Depreciation and Amortization	26.0	11.7	49.2	23.0
Industrial Products
Segment Reporting Information [Line Items]
Net sales	80.4	96.4	169.5	178.4
Total Sales	156.0	170.5	324.0	322.9
EBIT	29.2	13.4	53.3	22.4
Depreciation and Amortization	2.8	2.5	5.4	5.1
Furniture Products
Segment Reporting Information [Line Items]
Net sales	259.1	291.4	525.8	572.7
Total Sales	261.3	295.0	531.0	579.2
EBIT	20.9	16.3	27.3	34.3
Depreciation and Amortization	4.0	4.4	8.0	8.7
Specialized Products
Segment Reporting Information [Line Items]
Net sales	267.0	275.9	529.9	543.3
Total Sales	267.7	276.5	531.5	544.6
EBIT	41.5	51.9	77.2	98.0
Depreciation and Amortization	10.4	9.8	20.6	18.9
Operating segments
Segment Reporting Information [Line Items]
Net sales	1,213.2	1,102.5	2,368.3	2,131.3
Operating segments \| Residential Products
Segment Reporting Information [Line Items]
Net sales	606.7	438.8	1,143.1	836.9
Operating segments \| Industrial Products
Segment Reporting Information [Line Items]
Net sales	80.4	96.4	169.5	178.4
Operating segments \| Furniture Products
Segment Reporting Information [Line Items]
Net sales	259.1	291.4	525.8	572.7
Operating segments \| Specialized Products
Segment Reporting Information [Line Items]
Net sales	267.0	275.9	529.9	543.3
Intersegment eliminations
Segment Reporting Information [Line Items]
Net sales	82.1	83.0	167.7	161.6
Depreciation and Amortization	6.8	5.4	13.1	11.5
Intersegment eliminations, unallocated assets and other	0.0	(0.5)	0.1	(1.2)
Intersegment eliminations \| Residential Products
Segment Reporting Information [Line Items]
Net sales	3.6	4.7	6.4	9.3
Intersegment eliminations \| Industrial Products
Segment Reporting Information [Line Items]
Net sales	75.6	74.1	154.5	144.5
Intersegment eliminations \| Furniture Products
Segment Reporting Information [Line Items]
Net sales	2.2	3.6	5.2	6.5
Intersegment eliminations \| Specialized Products
Segment Reporting Information [Line Items]
Net sales	$ 0.7	$ 0.6	$ 1.6	$ 1.3

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