Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Jun. 29, 2019	Dec. 29, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation loss	$ (21,453)	$ (20,861)
Changes in defined benefit plan liabilities	(6,544)	(3,919)
Total accumulated other comprehensive loss	$ (27,997)	$ (24,780)

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

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