Carrying Amount of Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Line Items]
Beginning balance	$ 1,958.9	$ 1,444.1
Other		0.2
Ending balance	1,992.9	1,958.9
Water Pik Inc
Goodwill [Line Items]
Beginning balance	425.8
Goodwill acquired during the period		424.3
Goodwill adjustment	1.5
Ending balance		425.8
Agro Bio Sciences Inc
Goodwill [Line Items]
Beginning balance	53.4
Goodwill acquired during the period		53.4
Ending balance		53.4
VIVISCAL
Goodwill [Line Items]
Beginning balance	36.9
Goodwill acquired during the period		36.9
Ending balance		36.9
Passport Food Safety Solutions, Inc.
Goodwill [Line Items]
Goodwill acquired during the period	32.5
Ending balance	32.5
Consumer Domestic
Goodwill [Line Items]
Beginning balance	1,632.1	1,280.1
Other		0.0
Ending balance	1,633.2	1,632.1
Consumer Domestic | Water Pik Inc
Goodwill [Line Items]
Goodwill acquired during the period		322.5
Goodwill adjustment	1.1
Consumer Domestic | Agro Bio Sciences Inc
Goodwill [Line Items]
Goodwill acquired during the period		0.0
Consumer Domestic | VIVISCAL
Goodwill [Line Items]
Goodwill acquired during the period		29.5
Consumer Domestic | Passport Food Safety Solutions, Inc.
Goodwill [Line Items]
Goodwill acquired during the period	0.0
Consumer International
Goodwill [Line Items]
Beginning balance	223.3	113.9
Other		0.2
Ending balance	223.7	223.3
Consumer International | Water Pik Inc
Goodwill [Line Items]
Goodwill acquired during the period		101.8
Goodwill adjustment	0.4
Consumer International | Agro Bio Sciences Inc
Goodwill [Line Items]
Goodwill acquired during the period		0.0
Consumer International | VIVISCAL
Goodwill [Line Items]
Goodwill acquired during the period		7.4
Consumer International | Passport Food Safety Solutions, Inc.
Goodwill [Line Items]
Goodwill acquired during the period	0.0
Specialty Products
Goodwill [Line Items]
Beginning balance	103.5	50.1
Other		0.0
Ending balance	136.0	103.5
Specialty Products | Water Pik Inc
Goodwill [Line Items]
Goodwill acquired during the period		0.0
Goodwill adjustment	0.0
Specialty Products | Agro Bio Sciences Inc
Goodwill [Line Items]
Goodwill acquired during the period		53.4
Specialty Products | VIVISCAL
Goodwill [Line Items]
Goodwill acquired during the period		$ 0.0
Specialty Products | Passport Food Safety Solutions, Inc.
Goodwill [Line Items]
Goodwill acquired during the period	$ 32.5