CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - shares	3 Months Ended	9 Months Ended
Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Statement of Stockholders' Equity [Abstract]
Stock options (in shares)	372,508	3,000	552,018	282,510
Restricted stock unit vested (in shares)	635	25,512	142,136	246,599
Performance-based awards (in shares)			257,098	418,491

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

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Balance Type:	na
Period Type:	duration