Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 60,268	$ 46,730	$ 31,558
Other comprehensive (loss) income
Foreign currency translation adjustments, net of tax	(6,048)	(37,466)	8,964
Unrealized gain on available-for-sale securities			391
Unrealized loss on interest rate swap, net of tax	(3,063)	(2,309)
Total other comprehensive (loss) income	(9,111)	(39,775)	9,355
Comprehensive income	$ 51,157	$ 6,955	$ 40,913

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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