Segment Reporting - Additional Information (Detail)	9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011
Revenue, Major Customer [Line Items]
Percentage of stability	100.00%
Walmart [Member]
Revenue, Major Customer [Line Items]
Sales to major customer, percentage	31.30%	31.90%
Walmart [Member] | North America [Member]
Revenue, Major Customer [Line Items]
Sales to major customer, percentage	36.30%	36.10%
Walmart [Member] | United Kingdom [Member]
Revenue, Major Customer [Line Items]
Sales to major customer, percentage	15.40%	14.70%
Walmart [Member] | Mexico [Member]
Revenue, Major Customer [Line Items]
Sales to major customer, percentage	21.70%	46.50%