Segment and Geographic Information - Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas (Detail) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020 USD ($)	Sep. 27, 2020 USD ($)	Jun. 28, 2020 USD ($)	Mar. 29, 2020 USD ($)	Dec. 31, 2019 USD ($)	Sep. 29, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2020 USD ($) Segment	Dec. 31, 2019 USD ($) Segment	Dec. 31, 2018 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 223,615	$ 251,073	$ 169,097	$ 167,235	$ 169,769	$ 183,325	$ 199,047	$ 173,484	$ 811,020	$ 725,625	$ 806,338
Long-lived assets	86,967				95,276				$ 86,967	$ 95,276	95,321
Number of reportable segments | Segment									1	1
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue									$ 280,205	$ 247,689	231,760
Long-lived assets	60,911				68,496				60,911	68,496	67,156
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue									208,787	227,738	311,914
Long-lived assets	20,014				21,691				20,014	21,691	23,948
Greater China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue									168,287	115,061	123,708
Long-lived assets	1,278				1,487				1,278	1,487	1,482
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue									153,741	135,137	138,956
Long-lived assets	$ 4,764				$ 3,602				$ 4,764	$ 3,602	$ 2,735