Capital Transactions - Summary of the Awards Each Year (Detail) - Class B Common Stock [Member] - shares	12 Months Ended
	Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
Schedule of Capitalization, Equity [Line Items]
Date of approval for award	Mar. 08, 2016	Mar. 03, 2015	Mar. 04, 2014
Fiscal year of service covered by award	2015	2014	2013
Shares settled in cash	19,080	19,080	19,100
Class B common stock shares issued	20,920	20,920	20,900
Total Class B Common Stock awarded	40,000	40,000	40,000