Summary of Outstanding Derivative Instruments on Gross Basis as Recorded in Consolidated Balance Sheets (Detail) - Undesignated Hedges - USD ($) $ in Thousands		Mar. 30, 2019	Dec. 29, 2018
Derivatives, Fair Value [Line Items]
Notional Amounts		$ 1,558	$ 1,764
Derivative Liabilities		8	8
Forward foreign currency contracts
Derivatives, Fair Value [Line Items]
Notional Amounts		1,558	1,764
Derivative Liabilities	[1],[2]	$ 8	$ 8

[1] Other accrued liabilities

[2] Represents recognition of operating lease liabilities.