Segment Information - Business Segment Information by Geographical Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 2,485.6	$ 2,654.6	$ 2,496.9
Plant, Property & Equipment, Net	443.5	443.9
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	941.1	927.0	896.2
Plant, Property & Equipment, Net	192.0	169.4
Italy
Revenues from External Customers and Long-Lived Assets [Line Items]
Plant, Property & Equipment, Net	81.6	89.3
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	290.7	303.3	266.7
Plant, Property & Equipment, Net	36.8	44.9
South Korea
Revenues from External Customers and Long-Lived Assets [Line Items]
Plant, Property & Equipment, Net	32.6	37.1
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Plant, Property & Equipment, Net	37.2	36.1
Other Developed Markets
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	476.8	588.3	583.4
Plant, Property & Equipment, Net	22.2	20.9
Emerging Growth Markets
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	777.0	836.0	$ 750.6
Plant, Property & Equipment, Net	$ 41.1	$ 46.2