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ACQUISITIONS - Purchase Price Allocations Related To Acquisitions (Details) - acquisition
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Business Acquisition [Line Items]    
Number of Acquisitions 0 1
Bedding group | A leader in proprietary specialized foam technology, primarily for the bedding and furniture industries    
Business Acquisition [Line Items]    
Number of Acquisitions   1