Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
Mar. 28, 2020	Mar. 30, 2019
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 26,689	$ 14,304
Available-for-sale marketable securities
Unrealized holding gains (losses) arising during period (Net of deferred taxes of $38 and $243, respectively for the thirteen Weeks Ended)	95	621
Reclassification adjustment for (gains) losses included in net income (Net of deferred taxes of $2 and $0, respectively for the thirteen Weeks Ended)	(6)
Other comprehensive income (loss), net of tax	89	621
Comprehensive income, net of tax	$ 26,778	$ 14,925

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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