Business Segment, Geographic Area, Product/Service Offerings and Significant Customer Information - Schedule of Net Revenues and Long-Lived Assets by Geographic Regions (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	$ 535.7	$ 463.6
Long-lived assets	395.2		$ 339.3
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	231.5	224.4
Long-lived assets	273.3		208.3
South Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	76.0	35.8
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	49.7	37.8
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	39.9	42.1
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	34.5	38.1
Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	104.1	$ 85.4
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	37.7		41.4
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 84.2		$ 89.6