Segment Reporting - Additional Information (Detail)	3 Months Ended	6 Months Ended
	Dec. 28, 2013 Segment	Jun. 28, 2014 Segment	Jun. 28, 2014 Customer Concentration Risk [Member] Walmart [Member] Sales [Member]	Jun. 29, 2013 Customer Concentration Risk [Member] Walmart [Member] Sales [Member]	Jun. 28, 2014 Customer Concentration Risk [Member] Walmart [Member] Sales [Member] All Other [Member]	Jun. 29, 2013 Customer Concentration Risk [Member] Walmart [Member] Sales [Member] All Other [Member]	Jun. 28, 2014 Customer Concentration Risk [Member] Walmart [Member] Sales [Member] North America [Member]	Jun. 29, 2013 Customer Concentration Risk [Member] Walmart [Member] Sales [Member] North America [Member]	Jun. 28, 2014 Customer Concentration Risk [Member] Walmart [Member] Sales [Member] United Kingdom [Member]	Jun. 29, 2013 Customer Concentration Risk [Member] Walmart [Member] Sales [Member] United Kingdom [Member]
Revenue, Major Customer [Line Items]
Number of reporting segments		3
Number of combined reporting segments	1
Concentration risk			27.00%	30.70%	2.20%	5.40%	33.30%	36.10%	13.30%	14.80%