Investments (Details) (USD $)	3 Months Ended		6 Months Ended			3 Months Ended			6 Months Ended			3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011	Dec. 31, 2011	Apr. 02, 2011 Late July Snacks LLC [Member]	Jun. 30, 2012 Late July Snacks LLC [Member]	Dec. 31, 2011 Late July Snacks LLC [Member]	Jun. 30, 2012 Limited Partnerships And Real Estate Investment Trusts [Member]	Jul. 02, 2011 Limited Partnerships And Real Estate Investment Trusts [Member]	Dec. 31, 2011 Limited Partnerships And Real Estate Investment Trusts [Member]	Jun. 30, 2012 Contract Manufacturing [Member] Late July Snacks LLC [Member]	Jul. 02, 2011 Contract Manufacturing [Member] Late July Snacks LLC [Member]	Jun. 30, 2012 Contract Manufacturing [Member] Late July Snacks LLC [Member]	Jul. 02, 2011 Contract Manufacturing [Member] Late July Snacks LLC [Member]
Investment [Line Items]
Net revenue	$ 399,400,000	$ 412,541,000	$ 792,243,000	$ 801,011,000								$ 1,200,000	$ 1,100,000	$ 2,500,000	$ 2,200,000
Accounts receivable	148,557,000		148,557,000		143,238,000		600,000	400,000
Ownership interest, maximum									5.00%
Long-term investments									6,200,000		7,000,000
Proceeds from sale of long-term investments			0	960,000					0	1,000,000
Payment to purchase manufacturing equipment from Late July						$ 2,000,000