Acquisitions (Purchase Price Allocations Related to Acquisitions) (Details) - acquisition	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
A leader in proprietary specialized foam technology, primarily for the bedding and furniture industries; Manufacturer and distributor of geosynthetic and mine ventilation products | Residential Products
Business Acquisition [Line Items]
Number of Acquisitions	2
Manufacturer and distributor of home and garden products; Manufacturer and distributor of silt fence; Engineered hydraulic cylinders | Residential Products and Specialized Products
Business Acquisition [Line Items]
Number of Acquisitions		3
Distributor and installer of geosynthetic products; Flooring products; Surface-critical bent tube components | Residential Products and Furniture Products
Business Acquisition [Line Items]
Number of Acquisitions			3