Restructuring Costs - Schedule of Restructuring Costs Incurred by Reportable Business Segment (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 10.9	$ 5.4
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	2.8	1.9
Food and Appliances Segment [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	1.8	0.6
Home and Outdoor Living Segment [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	2.5	0.8
Learning and Development Segment [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 3.8	$ 2.1