Restructuring and Other - Narrative (Detail) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($) Facility
Restructuring Cost And Reserve [Line Items]
Employee termination costs	$ 10.8	$ 5.2	$ 18.9	$ 8.4
Other restructuring charges	4.5	3.7	12.7	5.1
Multi-employer pension plan charges	$ 0.7	$ 0.7	$ 1.4	1.5
Facility Closing
Restructuring Cost And Reserve [Line Items]
Impairment of other long lived assets				$ 1.7
Marketing Solutions
Restructuring Cost And Reserve [Line Items]
Number of manufacturing facility closures announced | Facility				2
Gain on sale of previously impaired assets				$ 4.9