Restructuring and Other Liabilities - Additional Information (Detail) - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost And Reserve [Line Items]
Total restructuring reserve balance	$ 41,700,000	$ 37,500,000	$ 87,900,000	$ 79,800,000
Minimum
Restructuring Cost And Reserve [Line Items]
Aggregate cost for restructuring initiatives	10,000,000
Maximum
Restructuring Cost And Reserve [Line Items]
Aggregate cost for restructuring initiatives	28,000,000
Western Europe Restructuring Activities
Restructuring Cost And Reserve [Line Items]
Aggregate cost for restructuring initiatives	101,000,000
Remaining restructuring liability	$ 35,000,000