SEGMENT INFORMATION - Summary of Segment Results from Continuing Operations (Details) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) segment	Sep. 30, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments \| segment			4
Number of reportable segments \| segment			4
Net sales	$ 1,239.3	$ 1,091.5	$ 3,607.6	$ 3,222.8
Total Sales	1,321.9	1,175.5	3,857.9	3,468.4
EBIT	144.1	124.4	378.3	352.9
Depreciation and Amortization	48.4	33.8	144.7	101.0
Residential Products
Segment Reporting Information [Line Items]
Net sales	631.9	446.5	1,775.0	1,283.4
Total Sales	635.6	449.9	1,785.1	1,296.1
EBIT	53.2	43.0	129.5	118.0
Depreciation and Amortization	25.9	11.4	75.1	34.4
Industrial Products
Segment Reporting Information [Line Items]
Net sales	68.6	97.4	238.1	275.8
Total Sales	144.4	173.4	468.4	496.3
EBIT	22.6	25.2	75.9	47.6
Depreciation and Amortization	2.8	2.6	8.2	7.7
Furniture Products
Segment Reporting Information [Line Items]
Net sales	271.6	294.1	797.4	866.8
Total Sales	273.8	298.0	804.8	877.2
EBIT	24.6	14.0	51.9	48.3
Depreciation and Amortization	3.8	4.3	11.8	13.0
Specialized Products
Segment Reporting Information [Line Items]
Net sales	267.2	253.5	797.1	796.8
Total Sales	268.1	254.2	799.6	798.8
EBIT	44.4	43.5	121.6	141.5
Depreciation and Amortization	10.4	9.8	31.0	28.7
Operating segments
Segment Reporting Information [Line Items]
Net sales	1,239.3	1,091.5	3,607.6	3,222.8
Operating segments \| Residential Products
Segment Reporting Information [Line Items]
Net sales	631.9	446.5	1,775.0	1,283.4
Operating segments \| Industrial Products
Segment Reporting Information [Line Items]
Net sales	68.6	97.4	238.1	275.8
Operating segments \| Furniture Products
Segment Reporting Information [Line Items]
Net sales	271.6	294.1	797.4	866.8
Operating segments \| Specialized Products
Segment Reporting Information [Line Items]
Net sales	267.2	253.5	797.1	796.8
Intersegment eliminations
Segment Reporting Information [Line Items]
Net sales	82.6	84.0	250.3	245.6
Depreciation and Amortization	5.5	5.7	18.6	17.2
Intersegment eliminations, unallocated assets and other	(0.7)	(1.3)	(0.6)	(2.5)
Intersegment eliminations \| Residential Products
Segment Reporting Information [Line Items]
Net sales	3.7	3.4	10.1	12.7
Intersegment eliminations \| Industrial Products
Segment Reporting Information [Line Items]
Net sales	75.8	76.0	230.3	220.5
Intersegment eliminations \| Furniture Products
Segment Reporting Information [Line Items]
Net sales	2.2	3.9	7.4	10.4
Intersegment eliminations \| Specialized Products
Segment Reporting Information [Line Items]
Net sales	$ 0.9	$ 0.7	$ 2.5	$ 2.0

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