CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - shares	12 Months Ended
Dec. 27, 2020	Dec. 29, 2019	Dec. 30, 2018
Statement of Stockholders' Equity [Abstract]
Stock options (in shares)	644,268	419,160	2,327,046
Restricted stock unit vested (in shares)	142,958	246,599	282,723
Performance-based awards (in shares)	257,098	418,491	271,841,000

Number of share options (or share units) exercised during the current period.

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