Discontinued Operations - Depreciation, Amortization and Capital Expenditures (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 27, 2015
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | Publishing
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation		$ 49,542
Amortization		7,008
Capital expenditures		(20,252)
Payments for acquisitions, net of cash acquired		(28,668)
Payments for investments		(2,000)
Proceeds from investments		12,402
Discontinued Operations, Disposed of by Sale | Other
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation	$ 112	609
Amortization	0	0
Capital expenditures	0	(475)
Payments for acquisitions, net of cash acquired	0	0
Payments for investments	0	0
Proceeds from investments	$ 0	0
Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation		50,151
Amortization		7,008
Capital expenditures		(20,727)
Payments for acquisitions, net of cash acquired		(28,668)
Payments for investments		(2,000)
Proceeds from investments		$ 12,402