Annual report pursuant to Section 13 and 15(d)

Segment Information - Additional Information (Detail)

v3.10.0.1
Segment Information - Additional Information (Detail)
$ in Millions
12 Months Ended
Dec. 31, 2018
USD ($)
Segment
Country
Dec. 31, 2017
USD ($)
Segment Reporting Information [Line Items]    
Number of countries in which the Company sells products | Country 94  
Number of reportable segments | Segment 2  
Goodwill allocated to the Company's Segment $ 92.9 $ 96.9
Cash and cash equivalents 1,198.9 1,278.8
Total amount of cash held by foreign subsidiaries maintained or invested in U.S. dollars 309.4 633.3
Primary Reporting Segment [Member]    
Segment Reporting Information [Line Items]    
Goodwill allocated to the Company's Segment 89.8 93.6
China [Member]    
Segment Reporting Information [Line Items]    
Goodwill allocated to the Company's Segment 3.1 3.3
Foreign countries [Member]    
Segment Reporting Information [Line Items]    
Cash and cash equivalents 870.3 1,133.5
United States [Member]    
Segment Reporting Information [Line Items]    
Cash and cash equivalents $ 328.6 $ 145.3