Commitments and Contingencies (Details)		1 Months Ended	3 Months Ended		9 Months Ended		49 Months Ended
	Dec. 08, 2008 subsidiary	Feb. 29, 2012 USD ($)	Sep. 30, 2015 USD ($)	Sep. 28, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 28, 2014 USD ($)	Dec. 29, 2012 claim	Nov. 10, 2015 radio_station station television_station	Oct. 31, 2015 claim	Jul. 24, 2015 case	Dec. 28, 2014 USD ($)	Dec. 31, 2012 USD ($)	Jul. 23, 2012
Loss Contingencies [Line Items]
Number of direct and indirect wholly-owned subsidiaries included in bankruptcy filing | subsidiary	110
Number of proofs of claim settled or satisfied pursuant to the terms of the plan | case										96
Amount of cash transferred to restricted accounts												$ 187,000,000
Restricted cash and cash equivalents			$ 17,595,000		$ 17,595,000						$ 17,600,000
Number of complaints filed | claim							7,400
Reorganization Items			(188,000)	$ 1,594,000	1,432,000	$ 5,975,000
Operating net cash outflows resulting from reorganization costs			$ 1,000,000	$ 1,000,000	$ 1,000,000	$ 5,000,000
FCC regulation, television and radio broadcast station license terms					8 years
FCC regulation, television station ownership cap			39.00%		39.00%
The UHF discount			50.00%		50.00%
FCC regulation, television station ownership cap, national reach percent			39.00%		39.00%
FCC regulation, maximum reimbursement amount for required product modifications		$ 1,750,000,000
Predecessor | Debentures at 6.61% due 2027 | Debentures
Loss Contingencies [Line Items]
Interest rate percentage													6.61%
Predecessor | Debentures at 7.25% due 2096 | Debentures
Loss Contingencies [Line Items]
Interest rate percentage													7.25%
Predecessor | Notes at 4.875% due 2010 | Notes Payable
Loss Contingencies [Line Items]
Interest rate percentage													4.875%
Predecessor | Notes at 5.25% due 2015 | Notes Payable
Loss Contingencies [Line Items]
Interest rate percentage													5.25%
Predecessor | Debentures at 7.25% due 2013 | Debentures
Loss Contingencies [Line Items]
Interest rate percentage													7.25%
Predecessor | Debentures at 7.5% due 2023 | Debentures
Loss Contingencies [Line Items]
Interest rate percentage													7.50%
Subsequent Event
Loss Contingencies [Line Items]
Number of proofs of claim settled or satisfied pursuant to the terms of the plan | claim									3,750
Number of proofs of claim withdrawn, expunged or satisfied | claim									3,280
Number of proofs of claim subject to further evaluation and adjustments | claim									425
Number of proofs of claim assumed in connection with the Spin-off | claim									3
FCC regulation, number of television stations authorized | television_station								39
FCC regulation, number of radio stations authorized | radio_station								1
FCC regulation, number of stations with pending renewal applications | station								3