Goodwill and Other Intangible Assets (Changes In The Carrying Amounts Of Goodwill) (Details) - USD ($) $ in Millions		12 Months Ended
	Dec. 09, 2019	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Roll Forward]
Net goodwill, beginning of period		$ 833.8	$ 822.2
Additions for current year acquisitions	$ 7.0	566.3	28.1
Adjustments to prior year acquisitions		1.1	(0.2)
Foreign currency translation adjustment		5.1	(16.3)
Gross goodwill		1,729.0
Accumulated impairment losses		(322.7)
Net goodwill, end of period		1,406.3	833.8
Residential Products
Goodwill [Roll Forward]
Net goodwill, beginning of period		363.5	368.2
Additions for current year acquisitions		566.3	1.3
Adjustments to prior year acquisitions		0.9	(0.2)
Foreign currency translation adjustment		3.0	(5.8)
Gross goodwill		933.7
Accumulated impairment losses		0.0
Net goodwill, end of period		933.7	363.5
Industrial Products
Goodwill [Roll Forward]
Net goodwill, beginning of period		70.7	70.8
Additions for current year acquisitions		0.0	0.0
Adjustments to prior year acquisitions		0.0	0.0
Foreign currency translation adjustment		0.1	(0.1)
Gross goodwill		76.2
Accumulated impairment losses		(5.4)
Net goodwill, end of period		70.8	70.7
Furniture Products
Goodwill [Roll Forward]
Net goodwill, beginning of period		193.1	196.2
Additions for current year acquisitions		0.0	0.0
Adjustments to prior year acquisitions		0.0	0.0
Foreign currency translation adjustment		(0.1)	(3.1)
Gross goodwill		443.6
Accumulated impairment losses		(250.6)
Net goodwill, end of period		193.0	193.1
Specialized Products
Goodwill [Roll Forward]
Net goodwill, beginning of period		206.5	187.0
Additions for current year acquisitions		0.0	26.8
Adjustments to prior year acquisitions		0.2	0.0
Foreign currency translation adjustment		2.1	(7.3)
Gross goodwill		275.5
Accumulated impairment losses		(66.7)
Net goodwill, end of period		$ 208.8	$ 206.5