Annual report pursuant to Section 13 and 15(d)

Income Taxes - Components of Income before Income Taxes (Detail)

v3.10.0.1
Income Taxes - Components of Income before Income Taxes (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]      
Domestic $ (2.0) $ (29.0) $ (89.3)
Foreign 466.2 500.2 454.0
Income before income taxes $ 464.2 $ 471.2 $ 364.7