REVENUE (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Net trade sales	$ 1,175.4	$ 1,294.4	$ 3,610.2	$ 3,950.9
Bedding Products
Disaggregation of Revenue [Line Items]
Net trade sales	483.3	582.0	1,516.2	1,833.9
Bedding Products | Bedding Group
Disaggregation of Revenue [Line Items]
Net trade sales	483.3	582.0	1,516.2	1,833.9
Specialized Products
Disaggregation of Revenue [Line Items]
Net trade sales	319.4	291.3	961.3	815.5
Specialized Products | Automotive Group
Disaggregation of Revenue [Line Items]
Net trade sales	223.7	222.2	657.5	631.2
Specialized Products | Aerospace Products Group
Disaggregation of Revenue [Line Items]
Net trade sales	37.9	29.1	113.9	88.9
Specialized Products | Hydraulic Cylinders Group
Disaggregation of Revenue [Line Items]
Net trade sales	57.8	40.0	189.9	95.4
Furniture, Flooring & Textile Products
Disaggregation of Revenue [Line Items]
Net trade sales	372.7	421.1	1,132.7	1,301.5
Furniture, Flooring & Textile Products | Home Furniture Group
Disaggregation of Revenue [Line Items]
Net trade sales	72.4	91.8	226.8	316.8
Furniture, Flooring & Textile Products | Work Furniture Group
Disaggregation of Revenue [Line Items]
Net trade sales	65.2	77.2	205.0	247.7
Furniture, Flooring & Textile Products | Flooring & Textile Products Group
Disaggregation of Revenue [Line Items]
Net trade sales	$ 235.1	$ 252.1	$ 700.9	$ 737.0