Revenue Recognition - Summary of Revenue by Geographic Area (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2019	Mar. 30, 2018
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	$ 260,141	$ 314,842
United States [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	137,254	184,775
China [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	8,008	2,166
Singapore [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	68,272	102,633
Austria [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	14,275	13,535
Korea [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	18,386	8,351
Other [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	$ 13,946	$ 3,382