Segment Reporting - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 29, 2018	Jun. 30, 2017	Jun. 29, 2018	Jun. 30, 2017	Dec. 29, 2017
Segment Reporting Information [Line Items]
Percentage of Company's revenue	10.00%	10.00%	10.00%	10.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	12.00%		14.00%	12.00%
Accounts Receivable [Member]
Segment Reporting Information [Line Items]
Percentage of account receivable	10.00%		10.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Segment Reporting Information [Line Items]
Percentage of account receivable	18.00%		18.00%		24.00%