Acquisitions and Discontinued Operations - Narrative (Details) - USD ($) $ in Thousands					3 Months Ended			12 Months Ended
	Oct. 12, 2018	Jun. 29, 2018	Jun. 22, 2017	Jun. 20, 2016	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2011
Business Acquisition [Line Items]
Remeasurement gain								$ 2,289	$ 0	$ 0
Goodwill acquired								23,179	13,423
Goodwill impairment					$ (190,700)			(190,714)			$ (2,080,000)
Gain (loss) on sale of discontinued operations, net of tax								4,872	2,875	(376)
Income (loss) from discontinued operations, net of tax						$ 11,400		$ 0	11,291	(312)
Good Karma
Business Acquisition [Line Items]
Ownership interest (as a percent)		67.00%			69.00%			69.00%
Additional investment	$ 3,000	$ 15,000
Fair value of equity interest		9,000
Remeasurement gain							$ 2,300
Aggregate purchase price		35,700
Intangible assets acquired		$ 13,600
Weighted-average amortization period		10 years
Goodwill acquired		$ 23,300
Fair value of non-controlling interest		11,800
Good Karma | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible assets acquired		2,900
Good Karma | Trademarks
Business Acquisition [Line Items]
Indefinite-lived intangible assets acquired		$ 10,700
Uncle Matt's
Business Acquisition [Line Items]
Aggregate purchase price			$ 22,000
Intangible assets acquired			$ 8,400
Weighted-average amortization period			10 years
Goodwill acquired			$ 13,300
Uncle Matt's | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible assets acquired			1,800
Uncle Matt's | Trademarks
Business Acquisition [Line Items]
Indefinite-lived intangible assets acquired			$ 6,600
Friendly’s Holdings
Business Acquisition [Line Items]
Aggregate purchase price				$ 158,200
Intangible assets acquired				$ 81,700
Weighted-average amortization period				15 years
Goodwill acquired				$ 67,300
Unfavorable lease contract assumed				5,400
Friendly’s Holdings | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible assets acquired				$ 29,700
Morningstar Foods, LLC
Business Acquisition [Line Items]
Gain (loss) on sale of discontinued operations, net of tax									2,900	(400)
Income (loss) from discontinued operations, net of tax										$ (300)
WhiteWave Foods
Business Acquisition [Line Items]
Income (loss) from discontinued operations, net of tax									$ 11,300
Tax Refund from Settlement of State Tax Claim | Morningstar Foods, LLC
Business Acquisition [Line Items]
Gain (loss) on sale of discontinued operations, net of tax								$ 1,900
Uncertain Tax Position Reserve Release | Morningstar Foods, LLC
Business Acquisition [Line Items]
Gain (loss) on sale of discontinued operations, net of tax								$ 3,000