Business Segment, Geographic Area, and Significant Customer Information - Schedule of Net Revenues and Long-Lived Assets by Geographic Regions (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	$ 693.9	$ 535.7
Long-lived assets	518.3		$ 503.9
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	282.8	231.5
Long-lived assets	379.7		364.0
South Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	97.9	76.0
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	81.3	49.7
Taiwan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	59.4	25.3
Other Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	70.1	58.9
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	48.0	40.0
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	54.4	$ 54.3
Long-lived assets	37.3		94.8
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 101.3		$ 45.1