Income Taxes - Provisions for Federal, Foreign and State Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Current expense/(benefit):
Federal	$ 8,414	$ (3,549)	$ 10,245
Foreign	14,513	14,548	11,923
State	2,312	2,628	1,414
Current expense	25,239	13,627	23,582
Deferred expense/(benefit):
Federal	(625)	2,145	20,467
Foreign	(2,198)	(11,228)	1,214
State	200	194	2,030
Deferred expense/(benefit)	(2,623)	(8,889)	23,711
Total income tax expense	$ 22,616	$ 4,738	$ 47,293