Annual report pursuant to Section 13 and 15(d)

Condensed Consolidated Statements of Cash Flows (Parenthetical)

v3.8.0.1
Condensed Consolidated Statements of Cash Flows (Parenthetical)
12 Months Ended
Dec. 28, 2017
Dec. 29, 2016
Dec. 31, 2015
Statement of Cash Flows [Abstract]      
Fiscal year period 364 days 364 days 371 days