Restructuring and Relocation - Restructuring (Details)	1 Months Ended	3 Months Ended		6 Months Ended		5 Months Ended	6 Months Ended	1 Months Ended	3 Months Ended
	Aug. 31, 2012	Jun. 30, 2013 USD ($)	Jun. 30, 2012 USD ($)	Jun. 30, 2013 USD ($)	Jun. 30, 2012 USD ($)	Dec. 31, 2012 Restructuring position	Dec. 31, 2012 Restructuring USD ($)	Aug. 31, 2012 Restructuring Minimum USD ($)	Jun. 30, 2013 Restructuring European Healthy snacking products Non-core Business USD ($)	Jun. 30, 2013 Restructuring European Healthy snacking products Non-core Business EUR (€)	Jun. 30, 2013 Restructuring Severance USD ($)	Mar. 31, 2013 Restructuring Severance USD ($)	Jun. 30, 2013 Accrued liabilities Restructuring USD ($)	Jun. 30, 2013 Other liabilities Restructuring USD ($)
Restructuring Cost and Reserve [Line Items]
Expected annual savings								$ 60,000,000
Period in which savings will be realized	2013
Number of positions eliminated due to restructuring						300
Severance							11,000,000
Impairments primarily related to fixed assets and certain promotional and packaging materials							5,000,000
Goodwill, impairment loss related to restructuring							2,000,000
Restructuring accrual included in Accrued Liabilities													3,000,000
Restructuring Reserve Roll Forward
Beginning balance											6,023,000	7,000,000
Restructuring costs		41,000	6,770,000	258,000	10,633,000		18,000,000				48,000	18,000
Amounts paid											(1,982,000)	(995,000)
Ending balance											4,089,000	6,023,000
Proceeds from sale of business									4,000,000	3,000,000
Gain on sale of business									2,000,000
Restructuring accrual included in Other Liabilities														1,000,000
Approximate annual revenue contribution		$ 812,171,000	$ 833,165,000	$ 1,586,423,000	$ 1,626,649,000				$ 12,000,000