Segment Reporting (Narrative) (Details) (Walmart [Member])	12 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010
Revenue, Major Customer [Line Items]
Sales to major customer, percentage	31.60%	31.00%	33.50%
North America [Member]
Revenue, Major Customer [Line Items]
Sales to major customer, percentage	35.90%	35.30%	39.40%
United Kingdom [Member]
Revenue, Major Customer [Line Items]
Sales to major customer, percentage	14.60%	16.60%	17.70%
Mexico [Member]
Revenue, Major Customer [Line Items]
Sales to major customer, percentage	44.70%	38.90%	18.40%