Long-Term Debt (Narrative) (Details) (USD $)	12 Months Ended				12 Months Ended						12 Months Ended		3 Months Ended	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011	Dec. 26, 2009	Dec. 29, 2012 Minimum	Dec. 29, 2012 Minimum Credit Agreement [Member]	Dec. 29, 2012 Maximum	Dec. 29, 2012 Unsecured U.S. Term Loan Due September 2016 [Member]	Dec. 31, 2011 Unsecured U.S. Term Loan Due September 2016 [Member]	Dec. 29, 2012 Private Placement Senior Notes [Member]	Dec. 29, 2012 Various Unsecured Loans Due From 2012 [Member]	Dec. 31, 2011 Various Unsecured Loans Due From 2012 [Member]	Dec. 29, 2012 Snack Factory, LLC [Member] Unsecured U.S. Term Loan Due September 2016 [Member]	Dec. 29, 2012 Snack Factory, LLC [Member] Unsecured U.S. Term Loan Due September 2016 [Member]	Oct. 11, 2012 Snack Factory, LLC [Member] Unsecured U.S. Term Loan Due September 2016 [Member]
Line of Credit Facility [Line Items]
Unsecured debt								$ 325,000,000	$ 0		$ 0	$ 159,000			$ 325,000,000
Debt Instrument, Periodic Payment, Principal													4,100,000
Annual aggregate long-term debt maturities in 2013	20,500,000
Annual aggregate long-term debt maturities in 2014	18,500,000
Annual aggregate long-term debt maturities in 2015	118,300,000
Annual aggregate long-term debt maturities in 2016	277,300,000
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Minimum								1.00%			5.13%
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Maximum								1.70%			8.00%
Annual aggregate long-term debt maturities in 2017	100,400,000
Annual aggregate long-term debt maturities in years thereafter	0
Revolving credit facility borrowings, maximum	265,000,000
Debt outstanding, fair value	544,000,000	269,000,000
Commitment fee percentage						0.175%	0.35%
Weighted average interest rate	2.70%	3.80%
Available unused credit facilities	165,000,000	120,000,000
Option to increase available credit	100,000,000
EBITDA ratio	3.1				3.25		3.50	0.017
Payments of Debt Issuance Costs	2,028,000	0	0
Debt Instrument Life of Loan														4 years
Interest coverage ratio	2.50					11.1
Consolidated stockholders' equity							200,000,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	872,175,000	838,591,000	836,615,000	278,510,000
Senior notes										100,000,000
Interest Expense	$ 9,700,000	$ 10,700,000	$ 3,900,000