XML 61 R49.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Other Matters - Narrative (Details) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Oct. 31, 2017 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2017 USD ($) station phase | Sep. 30, 2016 USD ($) | Dec. 31, 2016 USD ($)
FCC Broadcast Spectrum Program |  |  |  |  |
Number of stations assigned new channels | station |  |  | 13 |  |
Repacking period |  |  | 39 months |  |
Number of repacking phases | phase |  |  | 10 |  |
FCC Broadcast Spectrum Program, authorized reimbursement amount |  | $ 1,750,000,000.00 | $ 1,750,000,000.00 |  |
Estimated aggregate costs |  |  | 1,900,000,000 |  |
Spectrum channel share agreement proceeds |  | 32,600,000 | $ 32,588,000 | $ 0 |
Deferred revenue, recognition period |  |  | 20 years |  |
Voluntary Retirement Program (VRP) |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Accrued separation liability |  | $ 400,000 | $ 400,000 |  |
Severance | Voluntary Retirement Program (VRP) |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  |  | $ 16,000,000
Subsequent Event |  |  |  |  |
FCC Broadcast Spectrum Program |  |  |  |  |
Reimbursements allocated from fund during period | $ 1,000,000,000 |  |  |  |
Amounts reimbursed as a percentage of total costs | 52.00% |  |  |  |

X
- Definition Broadcast Spectrum Program, Amounts Reimbursed As a Percentage of Total Costs + References No definition available. + Details
Name: | tgna_BroadcastSpectrumProgramAmountsReimbursedAsaPercentageofTotalCosts
Namespace Prefix: | tgna_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Broadcast Spectrum Program, Authorized Reimbursement Amount + References No definition available. + Details
Name: | tgna_BroadcastSpectrumProgramAuthorizedReimbursementAmount
Namespace Prefix: | tgna_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Broadcast Spectrum Program, Estimated Aggregate Costs + References No definition available. + Details
Name: | tgna_BroadcastSpectrumProgramEstimatedAggregateCosts
Namespace Prefix: | tgna_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Broadcast Spectrum Program, Number of Repacking Phases + References No definition available. + Details
Name: | tgna_BroadcastSpectrumProgramNumberofRepackingPhases
Namespace Prefix: | tgna_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Broadcast Spectrum Program, Number of Stations Affected + References No definition available. + Details
Name: | tgna_BroadcastSpectrumProgramNumberofStationsAffected
Namespace Prefix: | tgna_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Broadcast Spectrum Program, Reimbursements Paid During Period + References No definition available. + Details
Name: | tgna_BroadcastSpectrumProgramReimbursementsPaidDuringPeriod
Namespace Prefix: | tgna_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Broadcast Spectrum Program, Repacking Period + References No definition available. + Details
Name: | tgna_BroadcastSpectrumProgramRepackingPeriod
Namespace Prefix: | tgna_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Deferred Revenue, Recognition Period + References No definition available. + Details
Name: | tgna_DeferredRevenueRecognitionPeriod
Namespace Prefix: | tgna_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition FCC Broadcast Spectrum Program [Abstract] + References No definition available. + Details
Name: | tgna_FCCBroadcastSpectrumProgramAbstract
Namespace Prefix: | tgna_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proceeds from Operating Agreements + References No definition available. + Details
Name: | tgna_ProceedsfromOperatingAgreements
Namespace Prefix: | tgna_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
Name: | us-gaap_RestructuringCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RestructuringCostAndReserveLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
Name: | us-gaap_RestructuringReserve
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_RestructuringPlanAxis=tgna_VoluntaryRetirementProgramVRPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=us-gaap_EmployeeSeveranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |