Notes Receivable (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income from distributor notes	$ 13,100,000	$ 12,700,000	$ 12,900,000
Interest-bearing notes receivable	117,058,000	105,396,000
Interest income	2,940,000	4,518,000	1,426,000
Tasty Baking Company [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest-bearing notes receivable	9,000,000
Interest income	$ 400,000
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing period of territories, years	10