Discontinued Operations (Schedule of Business Details and Line Items Comprising Discontinued Operations on Statements of Earnings and Comprehensive Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net sales			$ 319.1
Cost of goods sold			245.7
Gross profit			73.4
Selling, general and administrative expenses			61.6
Operating income			11.8
Other non-operating expense (income), net			1.6
Earnings from discontinued operations before income tax			10.2
Income tax expense (benefit)			12.0
Net earnings (loss) from discontinued operations, net of tax	$ 0.0	$ 0.0	(1.8)
(Loss) gain from disposal of discontinued businesses, before income tax	(0.4)	(16.4)	(31.2)
(Loss) from disposal of discontinued businesses, net of tax expense (benefit)	1.7	(1.4)	(5.2)
(Loss) gain from disposal of discontinued businesses, net of tax	(2.1)	(15.0)	(26.0)
Net (loss) from discontinued operations	(2.1)	(15.0)	(27.8)
EMEA and Pacific Rim Business [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net sales			319.1
Cost of goods sold			245.7
Gross profit			73.4
Selling, general and administrative expenses			61.6
Operating income			11.8
Other non-operating expense (income), net			1.6
Earnings from discontinued operations before income tax			10.2
Income tax expense (benefit)			12.0
Net earnings (loss) from discontinued operations, net of tax			(1.8)
(Loss) gain from disposal of discontinued businesses, before income tax	(0.4)	(17.2)	(31.2)
(Loss) from disposal of discontinued businesses, net of tax expense (benefit)	1.7	(1.4)
(Loss) gain from disposal of discontinued businesses, net of tax	(2.1)	(15.8)	(31.2)
Net (loss) from discontinued operations	$ 2.1	(15.8)	(33.0)
Flooring Businesses [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
(Loss) gain from disposal of discontinued businesses, before income tax		0.8
(Loss) from disposal of discontinued businesses, net of tax expense (benefit)			(5.2)
(Loss) gain from disposal of discontinued businesses, net of tax		0.8	5.2
Net (loss) from discontinued operations		$ 0.8	$ 5.2