Derivative Instruments - Outstanding Forward Contracts Table (Detail) - Not Designated as Hedging Instrument € in Thousands, ₩ in Thousands, ¥ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands	Sep. 29, 2019 EUR (€)	Sep. 29, 2019 CAD ($)	Sep. 29, 2019 SGD ($)	Sep. 29, 2019 JPY (¥)	Sep. 29, 2019 KRW (₩)	Sep. 29, 2019 TWD ($)	Sep. 29, 2019 USD ($)	Dec. 31, 2018 EUR (€)	Dec. 31, 2018 CAD ($)	Dec. 31, 2018 SGD ($)	Dec. 31, 2018 JPY (¥)	Dec. 31, 2018 KRW (₩)	Dec. 31, 2018 TWD ($)	Dec. 31, 2018 USD ($)
Euro Member Countries, Euro
Derivative [Line Items]
Outstanding forward contracts	€ 18,000						$ 19,697	€ 23,000						$ 26,330
Japanese Yen
Derivative [Line Items]
Outstanding forward contracts				¥ 600,000			5,563				¥ 380,000			3,459
Mexico, Pesos
Derivative [Line Items]
Outstanding forward contracts				90,000			4,560				0			0
United Kingdom, Pounds
Derivative [Line Items]
Outstanding forward contracts				2,550			3,149				2,500			3,204
Hungary, Forint
Derivative [Line Items]
Outstanding forward contracts				¥ 840,000			2,739				¥ 750,000			2,685
Korean Won
Derivative [Line Items]
Outstanding forward contracts					₩ 3,660,000		3,053					₩ 3,125,000		2,808
Taiwanese Dollar
Derivative [Line Items]
Outstanding forward contracts						$ 45,700	1,478						$ 55,000	1,807
Canada, Dollars
Derivative [Line Items]
Outstanding forward contracts		$ 1,100					830		$ 990					726
Singapore, Dollars
Derivative [Line Items]
Outstanding forward contracts			$ 0				$ 0			$ 700				$ 514