CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) (Parenthetical) - shares	6 Months Ended
	Jul. 01, 2018	Jun. 25, 2017
Statement of Stockholders' Equity [Abstract]
Stock options (in shares)	2,185,201	460,909
Restricted stock unit vested (in shares)	223,174	245,858
Performance-based awards (in shares)	271,841	115,881