Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 118,917	$ 67,983	$ 62,738
Available-for-sale marketable securities
Unrealized holding gains (losses) arising during period (Net of deferred taxes of $706, $498 and $62, respectively)	1,806	1,255	(177)
Reclassification adjustment for (gains) losses included in net income (Net of deferred taxes of $0, $14 and $14, respectively)		(37)	40
Other comprehensive income (loss), net of tax	1,806	1,218	(137)
Comprehensive income, net of tax	$ 120,723	$ 69,201	$ 62,601

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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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities and unrealized holding gain (loss) related to transfers of securities into the available-for-sale classification and out of the held-to-maturity classification.

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