Commitments and Contingencies (Details)		1 Months Ended	3 Months Ended		6 Months Ended		49 Months Ended
	Dec. 08, 2008 subsidiary	Feb. 29, 2012 USD ($)	Jun. 30, 2015 USD ($)	Jun. 29, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 29, 2014 USD ($)	Dec. 30, 2012 claim	Aug. 13, 2015 radio_station station television_station	Jul. 31, 2015 claim	Jul. 24, 2015 case	Dec. 28, 2014 USD ($)	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
Reorganization Items			$ 628,000	$ 2,165,000	$ 1,620,000	$ 4,381,000
Amount of cash transferred to restricted accounts												$ 187,000,000
Restricted cash and cash equivalents			17,595,000		17,595,000						$ 17,600,000
Operating net cash outflows resulting from reorganization costs			$ 1,000,000	$ 1,000,000	$ 1,000,000	$ 3,000,000
FCC Regulation, Television and Radio Broadcast Station License Terms					8 years
FCC Regulation, Television Station Ownership Cap, Percent			39.00%		39.00%
The UHF Discount, Percent			50.00%		50.00%
FCC Regulation, Television Station Ownership Cap, National Reach Percent			39.00%		39.00%
Number of complaints filed | claim							7,400
FCC Regulation, Maximum Reimbursement Amount For Required Product Modifications		$ 1,750,000,000
Changes in Capital Structure
Loss Contingencies [Line Items]
Restricted cash and cash equivalents			$ 18,000,000		$ 18,000,000
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]
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								7
Number of proofs of claim withdrawn, expunged or satisfied | claim									3,280
Number of proofs of claim settled or satisfied pursuant to the terms of the plan									3,750	96
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