Trade Accounts Receivable - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Trade Accounts Receivable [Abstract]
Funding Fees For Sales Of Accounts Receivable	$ 9,566,000	$ 6,059,000	$ 4,497,000
Increase in funding fees due to increase in LIBOR	$ 2,897