v3.8.0.1

ACQUISITIONS, DIVESTITURES AND PRO FORMA SUMMARY (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Nov. 17, 2017 | Jan. 06, 2017
CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Unaudited Pro Forma Summary Of Financial Information |  |  |  |  |  |  |  |  |  |  |  |  |
ProFormaWeightedAverageSharesOutstandingDiluted |  |  |  |  |  |  |  |  | 141,790,000 | 139,908,000 | 39,038,000 |  |
WeightedAverageBasicSharesOutstandingProForma |  |  |  |  |  |  |  |  | 140,298,000 | 139,908,000 | 38,084,000 |  |
Income (Loss) from Continuing Operations, Per Outstanding Share, Total |  |  |  |  |  |  |  |  | $ 3.01 | $ (4.2) | $ 0.81 |  |
Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share |  |  |  |  |  |  |  |  | 0.01 | 0 | 0 |  |
Income (Loss) from Continuing Operations, Per Diluted Share |  |  |  |  |  |  |  |  | 3.02 | (4.2) | 0.79 |  |
Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share |  |  |  |  |  |  |  |  | $ 0.01 | $ 0 | $ 0 |  |
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest |  |  |  |  |  |  |  |  | $ 422,901 | $ (587,393) | $ 33,050 |  |
Income Loss From Discontinued Operations Net Of Tax |  |  |  |  |  |  |  |  | 836 | 0 | 0 |  |
Payments to Acquire Businesses, Gross |  |  |  |  |  |  |  |  | 24,000 | 92 | 83,553 |  |
Total intangible assets |  |  |  |  |  |  |  |  | 17,174 | 0 |  |  |
Property, Plant and Equipment, Gross | $ 461,131 |  |  |  | $ 187,796 |  |  |  | 461,131 | 187,796 |  |  |
Property Plant And Equipment Net | 346,507 |  |  |  | 63,375 |  |  |  | 346,507 | 63,375 |  |  |
Depreciation |  |  |  |  |  |  |  |  | 13,215 | 8,689 | 7,419 |  |
AssetRetirementObligation | 1,714 |  |  |  | 1,044 |  |  |  | 1,714 | 1,044 | 569 |  |
Merger and acquisition costs | $ 41,313 |  |  |  | $ 708 |  |  |  | 41,313 | 708 | 3,978 |  |
Merger and acquisition costs and restructuring charges |  |  |  |  |  |  |  |  | 41,313 | 708 | 3,978 |  |
Restructuring Charges |  |  |  |  |  |  |  |  | 13,962 | 0 | 2,858 |  |
Transition Services Costs |  |  |  |  |  |  |  |  | 2,960 | 0 | 0 |  |
Other Restructuring Costs |  |  |  |  |  |  |  |  | 147 | 0 | 0 |  |
Total Restructuring Charge and Transition Services |  |  |  |  |  |  |  |  | 16,922 | 0 | 2,858 |  |
Lease Abandonment Costs |  |  |  |  |  |  |  |  | 2,874 | 0 | 687 |  |
Changes in Estimates |  |  |  |  |  |  |  |  | 0 | 0 | (13) |  |
Workforce Reduction |  |  |  |  |  |  |  |  | 10,441 | 0 | 1,538 |  |
Costs to Exit Duplicative Contracts |  |  |  |  |  |  |  |  | 500 | 0 | 646 |  |
Net revenues |  |  |  |  |  |  |  |  | 1,580,934 | 1,656,123 | 442,485 |  |
Net income |  |  |  |  |  |  |  |  | $ 423,737 | $ (587,393) | $ 33,050 |  |
Net income per common share - basic |  |  |  |  |  |  |  |  | $ 3.01 | $ (4.21) | $ 0.81 |  |
Net income per common share - diluted |  |  |  |  |  |  |  |  | $ 3.01 | $ (4.21) | $ 0.79 |  |
Net income, available to common shareholders |  |  |  |  |  |  |  |  | $ 421,722 | $ (589,294) | $ 30,850 |  |
Income (Loss) from Continuing Operations, Per Outstanding Share, Total | $ 2.63 | $ 0.11 | $ 0.16 | $ (0.24) | $ 0.3 | $ 0.3 | $ 0.28 | $ 0.11 | $ 4.49 | $ 0.94 | $ 0.75 |  |
Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share | 0.01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.02 | 0 | 0 |  |
Income (Loss) from Continuing Operations, Per Diluted Share | 2.58 | 0.28 | 0.26 | 0.11 | 0.28 | 0.28 | 0.26 | 0.11 | 4.37 | 0.91 | 0.73 |  |
Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share | $ 0.01 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0.02 | $ 0 | $ 0 |  |
Weighted Average Number Of Shares Outstanding Basic | 88,309,000 | 38,955,000 | 38,945,000 | 38,910,000 | 38,561,000 | 38,485,000 | 38,469,000 | 38,448,000 | 51,392,899 | 38,500,495 | 38,083,947 |  |
Weighted Average Number Of Diluted Shares Outstanding | 89,887,000 | 39,728,000 | 39,656,000 | 38,910,000 | 39,800,000 | 41,433,000 | 41,130,000 | 39,260,000 | 55,678,189 | 39,568,062 | 39,037,623 |  |
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest | $ 231,829 | $ 4,100 | $ 6,414 | $ (9,331) | $ 11,399 | $ 11,420 | $ 10,834 | $ 4,412 | $ 233,013 | $ 38,065 | $ 29,184 |  |
Income Loss From Discontinued Operations Net Of Tax | 836 | $ 0 | $ 0 | $ 0 | 0 | $ 0 | $ 0 | $ 0 | 836 | 0 | $ 0 |  |
Acquisition Price Paid Using Convertible Preferred Stock | 0 |  |  |  | 27,500 |  |  |  | 0 | 27,500 |  |  |
Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Gross | 204,789 |  |  |  | 112,362 |  |  |  | $ 204,789 | 112,362 |  |  |
Equipment [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 40 years |  |  |  |
Equipment [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 3 years |  |  |  |
Building [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Gross | 40,925 |  |  |  | 22,698 |  |  |  | $ 40,925 | 22,698 |  |  |
Building [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 40 years |  |  |  |
Building [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 20 years |  |  |  |
LFM [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition price paid from borrowing |  |  |  |  | 42,000 |  |  |  |  | 42,000 |  |  |
Purchases of radio station assets |  |  |  |  | (77,500) |  |  |  |  | (77,500) |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | $ 18,175 |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 87,539 |  |  |  |
Total assets | 120,863 |  |  |  |  |  |  |  | 120,863 |  |  |  |
Net assets acquired | 113,390 |  |  |  |  |  |  |  | 113,390 |  |  |  |
Total current assets | 15,149 |  |  |  |  |  |  |  | 15,149 |  |  |  |
Total current liabilities | 4,201 |  |  |  |  |  |  |  | 4,201 |  |  |  |
Total liabilities acquired | 7,473 |  |  |  |  |  |  |  | $ 7,473 |  |  |  |
Unaudited Pro Forma Summary Of Financial Information |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition Price Paid Using Convertible Preferred Stock |  |  |  |  | 27,500 |  |  |  |  | 27,500 |  |  |
Aquisition Related Working Capital Reimbursement |  |  |  |  | 11,000 |  |  |  |  | 11,000 |  |  |
Aquisition Related Working Capital Credit |  |  |  |  | 2,700 |  |  |  |  | 2,700 |  |  |
Aquisition Purchase Price Total |  |  |  |  | 105,000 |  |  |  |  | 105,000 |  |  |
Discount Rates |  |  |  |  |  |  |  |  | 9.60% |  |  |  |
LFM [Member] | Cash [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current assets | 2,246 |  |  |  |  |  |  |  | $ 2,246 |  |  |  |
LFM [Member] | Accounts Receivable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current assets | 11,933 |  |  |  |  |  |  |  | 11,933 |  |  |  |
LFM [Member] | Prepaid Expenses And Other Current Assets [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current assets | 970 |  |  |  |  |  |  |  | $ 970 |  |  |  |
LFM [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Unaudited Pro Forma Summary Of Financial Information |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Inputs Long Term Revenue Growth Rate |  |  |  |  |  |  |  |  | 1.50% |  |  |  |
LFM [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Unaudited Pro Forma Summary Of Financial Information |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Inputs Long Term Revenue Growth Rate |  |  |  |  |  |  |  |  | 1.00% |  |  |  |
LFM [Member] | Unfavorable lease liability [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current liabilities | 3,272 |  |  |  |  |  |  |  | $ 3,272 |  |  |  |
LFM [Member] | Accrued Liabilities [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current liabilities | 3,466 |  |  |  |  |  |  |  | 3,466 |  |  |  |
LFM [Member] | Accounts Payable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current liabilities | 723 |  |  |  |  |  |  |  | 723 |  |  |  |
LFM [Member] | Liability [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current liabilities | 12 |  |  |  |  |  |  |  | 12 |  |  |  |
LFM [Member] | Leasehold improvements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | $ 973 |  |  |  |
LFM [Member] | Leasehold improvements [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 11 years |  |  |  |
LFM [Member] | Leasehold improvements [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 2 years |  |  |  |
LFM [Member] | Furniture and equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | $ 29 |  |  |  |
LFM [Member] | Furniture and equipment [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 5 years |  |  |  |
LFM [Member] | Furniture and equipment [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 5 years |  |  |  |
LFM [Member] | Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | $ 8,651 |  |  |  |
LFM [Member] | Equipment [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 40 years |  |  |  |
LFM [Member] | Equipment [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 3 years |  |  |  |
LFM [Member] | Land and Land Improvements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | $ 87 |  |  |  |
LFM [Member] | Land and Land Improvements [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 15 years |  |  |  |
LFM [Member] | Land and Land Improvements [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 15 years |  |  |  |
LFM [Member] | Land [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | $ 7,368 |  |  |  |
LFM [Member] | Building [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | $ 1,067 |  |  |  |
LFM [Member] | Building [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 25 years |  |  |  |
LFM [Member] | Building [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 15 years |  |  |  |
LFM [Member] | Radio Broadcasting Licences [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | $ 79,209 |  |  |  |
LFM [Member] | Goodwill [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 4,594 |  |  |  |
LFM [Member] | Assets Held For Sale [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 1,885 |  |  |  |
LFM [Member] | Lease Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | $ 487 |  |  |  |
LFM [Member] | Lease Agreements [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 5 years |  |  |  |
LFM [Member] | Lease Agreements [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 1 year |  |  |  |
LFM [Member] | Other Noncurrent Assets [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | $ 1,364 |  |  |  |
BonnevilleSwap [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Net time brokerage agreement (income) fees |  |  |  |  | $ 300 |  |  |  |  | 300 |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | 1,133 |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 53,326 |  |  |  |
Total assets | 59,323 |  |  |  |  |  |  |  | 59,323 |  |  |  |
Net assets acquired | 59,000 |  |  |  |  |  |  |  | $ 59,000 |  |  |  |
Unaudited Pro Forma Summary Of Financial Information |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Inputs Long Term Revenue Growth Rate |  |  |  |  |  |  |  |  | 1.00% |  |  |  |
Discount Rates |  |  |  |  |  |  |  |  | 9.20% |  |  |  |
BonnevilleSwap [Member] | Accounts Receivable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current assets | 4,864 |  |  |  |  |  |  |  | $ 4,864 |  |  |  |
BonnevilleSwap [Member] | Unfavorable lease liability [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Other long-term liabilities | $ 323 |  |  |  |  |  |  |  | $ 323 |  |  |  |
BonnevilleSwap [Member] | Unfavorable lease liability [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 4 years |  |  |  |
BonnevilleSwap [Member] | Unfavorable lease liability [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 1 year |  |  |  |
BonnevilleSwap [Member] | Furniture and equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | $ 121 |  |  |  |
BonnevilleSwap [Member] | Furniture and equipment [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 5 years |  |  |  |
BonnevilleSwap [Member] | Furniture and equipment [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 5 years |  |  |  |
BonnevilleSwap [Member] | Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | $ 1,012 |  |  |  |
BonnevilleSwap [Member] | Equipment [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 15 years |  |  |  |
BonnevilleSwap [Member] | Equipment [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 3 years |  |  |  |
BonnevilleSwap [Member] | Radio Broadcasting Licences [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | $ 53,057 |  |  |  |
BonnevilleSwap [Member] | Goodwill [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 266 |  |  |  |
BonnevilleSwap [Member] | Advertiser lists and customer relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | $ 1 |  |  |  |
BonnevilleSwap [Member] | Advertiser lists and customer relationships [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 3 years |  |  |  |
BonnevilleSwap [Member] | Advertiser lists and customer relationships [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 3 years |  |  |  |
BonnevilleSwap [Member] | Trademarks [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | $ 2 |  |  |  |
BonnevilleSwap [Member] | Trademarks [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 5 years |  |  |  |
BonnevilleSwap [Member] | Trademarks [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 5 years |  |  |  |
KRWZAM [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Unaudited Pro Forma Summary Of Financial Information |  |  |  |  |  |  |  |  |  |  |  |  |
Expected gain on sale of station |  |  |  |  |  |  |  |  |  | 300 |  |  |
ProceedsFromDivestitureOfBusinesses |  |  |  |  |  |  |  |  |  | $ 3,800 |  |  |
Charlotte [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Unaudited Pro Forma Summary Of Financial Information |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Inputs Long Term Revenue Growth Rate |  |  |  |  |  |  |  |  | 1.00% |  |  |  |
Discount Rates |  |  |  |  |  |  |  |  | 9.00% |  |  |  |
Charlotte [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total assets |  |  |  |  |  |  |  |  |  |  |  |  | $ 24,996
Net assets acquired |  |  |  |  |  |  |  |  |  |  |  |  | 24,000
Total liabilities acquired |  |  |  |  |  |  |  |  |  |  |  |  | 996
Property, Plant and Equipment, Gross |  |  |  |  |  |  |  |  |  |  |  |  | 7,325
Charlotte [Member] | Unfavorable lease liability [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current liabilities |  |  |  |  |  |  |  |  |  |  |  |  | 735
Charlotte [Member] | OtherNoncurrentLiabilitiesMember |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Other long-term liabilities |  |  |  |  |  |  |  |  |  |  |  |  | 261
Charlotte [Member] | Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | $ 4,569 |  |  |  |
Charlotte [Member] | Equipment [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 40 years |  |  |  |
Charlotte [Member] | Equipment [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 3 years |  |  |  |
Charlotte [Member] | Land [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | $ 2,539 |  |  |  |
Charlotte [Member] | Building [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | $ 217 |  |  |  |
Charlotte [Member] | Building [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 25 years |  |  |  |
Charlotte [Member] | Building [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 15 years |  |  |  |
Charlotte [Member] | Radio Broadcasting Licences [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | $ 17,384 |  |  |  |
Charlotte [Member] | Other Noncurrent Assets [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets non amortizable |  |  |  |  |  |  |  |  |  |  |  |  | $ 287
CBS Radio [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 3,002,094 |  |  |  |
Total assets |  |  |  |  |  |  |  |  |  |  |  | $ 3,540,159 |
Net assets acquired |  |  |  |  |  |  |  |  |  |  |  | 1,168,848 |
Total current assets |  |  |  |  |  |  |  |  |  |  |  | 273,683 |
Total current liabilities |  |  |  |  |  |  |  |  |  |  |  | 132,518 |
Total liabilities acquired |  |  |  |  |  |  |  |  |  |  |  | 2,371,311 |
Property, Plant and Equipment, Gross |  |  |  |  |  |  |  |  |  |  |  | 264,382 |
Unaudited Pro Forma Summary Of Financial Information |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from continuing operations earned from Acquiree |  |  |  |  |  |  |  |  | 133,600 |  |  |  |
Income befoer taxes earned from acquiree |  |  |  |  |  |  |  |  | $ 21,400 |  |  |  |
CBS Radio [Member] | CurrentLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total liabilities acquired |  |  |  |  |  |  |  |  |  |  |  | 13,859 |
CBS Radio [Member] | CurrentLiabilitiesDomain [Domain] | Unfavorable lease Liabilities Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total liabilities acquired |  |  |  |  |  |  |  |  |  |  |  | 12,770 |
CBS Radio [Member] | CurrentLiabilitiesDomain [Domain] | Unfavorable contracts Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total liabilities acquired |  |  |  |  |  |  |  |  |  |  |  | 22,597 |
CBS Radio [Member] | CurrentLiabilitiesDomain [Domain] | Noncurrent Portion of Long Term Debt Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total liabilities acquired |  |  |  |  |  |  |  |  |  |  |  | 1,376,900 |
CBS Radio [Member] | CurrentLiabilitiesDomain [Domain] | Deferred Tax Liability Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total liabilities acquired |  |  |  |  |  |  |  |  |  |  |  | 780,832 |
CBS Radio [Member] | Accrued Compensation Member [Member] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current liabilities |  |  |  |  |  |  |  |  |  |  |  | 26,324 |
CBS Radio [Member] | Current Portion of Long Term Debt Member [Member] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current liabilities |  |  |  |  |  |  |  |  |  |  |  | 10,600 |
CBS Radio [Member] | Current portion of unfavorable contracts Member [Member] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current liabilities |  |  |  |  |  |  |  |  |  |  |  | 4,803 |
CBS Radio [Member] | Accrued interest member [Member] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current liabilities |  |  |  |  |  |  |  |  |  |  |  | 4,529 |
CBS Radio [Member] | Current Portion of Unearned Revenue Member [Member] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current liabilities |  |  |  |  |  |  |  |  |  |  |  | 14,971 |
CBS Radio [Member] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current liabilities |  |  |  |  |  |  |  |  |  |  |  | 36,137 |
CBS Radio [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Unaudited Pro Forma Summary Of Financial Information |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Inputs Long Term Revenue Growth Rate |  |  |  |  |  |  |  |  | 1.00% |  |  |  |
Discount Rates |  |  |  |  |  |  |  |  | 9.00% |  |  |  |
Shares Issued Pursuant to Acquisition |  |  |  |  |  |  |  |  | 101,407,494 |  |  |  |
CBS Radio [Member] | AccruedExpensesMember [Member] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current liabilities |  |  |  |  |  |  |  |  |  |  |  | 35,154 |
CBS Radio [Member] | Accounts Receivable [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current assets |  |  |  |  |  |  |  |  |  |  |  | 241,548 |
CBS Radio [Member] | Prepaid contracts member [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current assets |  |  |  |  |  |  |  |  |  |  |  | 4,160 |
CBS Radio [Member] | PrepaidExpensesMember [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current assets |  |  |  |  |  |  |  |  |  |  |  | 20,625 |
CBS Radio [Member] | OtherCurrentAssetsMember | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total current assets |  |  |  |  |  |  |  |  |  |  |  | 7,350 |
CBS Radio [Member] | Maximum [Member] | CurrentLiabilitiesDomain [Domain] | Noncurrent Portion of Long Term Debt Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets amortization period |  |  |  |  |  |  |  |  | 7 years |  |  |  |
CBS Radio [Member] | Minimum [Member] | CurrentLiabilitiesDomain [Domain] | Noncurrent Portion of Long Term Debt Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets amortization period |  |  |  |  |  |  |  |  | 5 years |  |  |  |
CBS Radio [Member] | OtherNoncurrentLiabilitiesMember | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total liabilities acquired |  |  |  |  |  |  |  |  |  |  |  | 31,835 |
CBS Radio [Member] | Leasehold improvements [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Gross |  |  |  |  |  |  |  |  |  |  |  | 36,029 |
CBS Radio [Member] | Furniture and equipment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Gross |  |  |  |  |  |  |  |  |  |  |  | 4,080 |
CBS Radio [Member] | Furniture and equipment [Member] | Maximum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 7 years |  |  |  |
CBS Radio [Member] | Furniture and equipment [Member] | Minimum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 7 years |  |  |  |
CBS Radio [Member] | Equipment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Gross |  |  |  |  |  |  |  |  |  |  |  | 81,407 |
CBS Radio [Member] | Equipment [Member] | Maximum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 23 years |  |  |  |
CBS Radio [Member] | Equipment [Member] | Minimum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 3 years |  |  |  |
CBS Radio [Member] | Land and Land Improvements [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Gross |  |  |  |  |  |  |  |  |  |  |  | 1,348 |
CBS Radio [Member] | Land and Land Improvements [Member] | Maximum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 10 years |  |  |  |
CBS Radio [Member] | Land and Land Improvements [Member] | Minimum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 10 years |  |  |  |
CBS Radio [Member] | Land [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Gross |  |  |  |  |  |  |  |  |  |  |  | 112,880 |
CBS Radio [Member] | Building [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Gross |  |  |  |  |  |  |  |  |  |  |  | 14,040 |
CBS Radio [Member] | Building [Member] | Maximum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 25 years |  |  |  |
CBS Radio [Member] | Building [Member] | Minimum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Tangible assets amortization period |  |  |  |  |  |  |  |  | 25 years |  |  |  |
CBS Radio [Member] | ConstructionInProgressMember | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Gross |  |  |  |  |  |  |  |  |  |  |  | 14,598 |
CBS Radio [Member] | Radio Broadcasting Licences [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets non amortizable |  |  |  |  |  |  |  |  |  |  |  | 1,880,400 |
CBS Radio [Member] | Goodwill [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets non amortizable |  |  |  |  |  |  |  |  |  |  |  | 820,961 |
CBS Radio [Member] | Advertiser lists and customer relationships [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets amortizable |  |  |  |  |  |  |  |  |  |  |  | 27,453 |
CBS Radio [Member] | Advertiser lists and customer relationships [Member] | Maximum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets amortization period |  |  |  |  |  |  |  |  | 5 years |  |  |  |
CBS Radio [Member] | Advertiser lists and customer relationships [Member] | Minimum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets amortization period |  |  |  |  |  |  |  |  | 5 years |  |  |  |
CBS Radio [Member] | Assets Held For Sale [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total assets |  |  |  |  |  |  |  |  |  |  |  | 255,650 |
CBS Radio [Member] | Lease Agreements [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total assets |  |  |  |  |  |  |  |  |  |  |  | 16,580 |
CBS Radio [Member] | Other Noncurrent Assets [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total assets |  |  |  |  |  |  |  |  |  |  |  | 1,050 |
CBS Radio [Member] | Other Noncurrent Assets [Member] | Maximum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets amortization period |  |  |  |  |  |  |  |  | 40 years |  |  |  |
CBS Radio [Member] | Other Noncurrent Assets [Member] | Minimum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets amortization period |  |  |  |  |  |  |  |  | 3 years |  |  |  |
Beasley Transatcion - CBS Radio Merger | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Acquired Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | $ 36,233 |  |  |  |
Net assets acquired |  |  |  |  |  |  |  |  |  |  |  | 48,900 |
Unaudited Pro Forma Summary Of Financial Information |  |  |  |  |  |  |  |  |  |  |  |  |
Cash Acquired in Excess of Payments to Acquire Business |  |  |  |  |  |  |  |  | 12,000 |  |  |  |
Beasley Transatcion - CBS Radio Merger | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Disposed Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 48,093 |  |  |  |
Net assets acquired |  |  |  |  |  |  |  |  |  |  |  | 48,900 |
Unaudited Pro Forma Summary Of Financial Information |  |  |  |  |  |  |  |  |  |  |  |  |
Cash Acquired in Excess of Payments to Acquire Business |  |  |  |  |  |  |  |  | 0 |  |  |  |
Beasley Transatcion - CBS Radio Merger | OtherCurrentAssetsMember | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Acquired Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 0 |  |  |  |
Beasley Transatcion - CBS Radio Merger | OtherCurrentAssetsMember | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Disposed Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 267 |  |  |  |
Beasley Transatcion - CBS Radio Merger | Total Tangible Property Member [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Acquired Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | 667 |  |  |  |
Beasley Transatcion - CBS Radio Merger | Total Tangible Property Member [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Disposed Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | 807 |  |  |  |
Beasley Transatcion - CBS Radio Merger | Radio Broadcasting Licences [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Acquired Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 35,944 |  |  |  |
Beasley Transatcion - CBS Radio Merger | Radio Broadcasting Licences [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Disposed Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 35,944 |  |  |  |
Beasley Transatcion - CBS Radio Merger | Goodwill [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Acquired Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 289 |  |  |  |
Beasley Transatcion - CBS Radio Merger | Goodwill [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Disposed Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | $ 11,882 |  |  |  |
i Heart Media Transaction - CBS Radio Merger | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Unaudited Pro Forma Summary Of Financial Information |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Inputs Long Term Revenue Growth Rate |  |  |  |  |  |  |  |  | 1.00% |  |  |  |
Discount Rates |  |  |  |  |  |  |  |  | 9.00% |  |  |  |
i Heart Media Transaction - CBS Radio Merger | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Acquired Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | $ 63,627 |  |  |  |
Net assets acquired |  |  |  |  |  |  |  |  |  |  |  | 71,300 |
i Heart Media Transaction - CBS Radio Merger | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Disposed Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 63,151 |  |  |  |
Net assets acquired |  |  |  |  |  |  |  |  |  |  |  | 71,300 |
i Heart Media Transaction - CBS Radio Merger | CurrentLiabilitiesDomain [Domain] | Unfavorable lease Liabilities Member [Member] | Assets Acquired Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total liabilities acquired |  |  |  |  |  |  |  |  |  |  |  | 1,301 |
i Heart Media Transaction - CBS Radio Merger | CurrentLiabilitiesDomain [Domain] | Unfavorable lease Liabilities Member [Member] | Assets Disposed Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total liabilities acquired |  |  |  |  |  |  |  |  |  |  |  | 0 |
i Heart Media Transaction - CBS Radio Merger | CurrentLiabilitiesDomain [Domain] | Deferred Tax Liability Member [Member] | Assets Acquired Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total liabilities acquired |  |  |  |  |  |  |  |  |  |  |  | 4,751 |
i Heart Media Transaction - CBS Radio Merger | CurrentLiabilitiesDomain [Domain] | Deferred Tax Liability Member [Member] | Assets Disposed Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total liabilities acquired |  |  |  |  |  |  |  |  |  |  |  | $ 0 |
i Heart Media Transaction - CBS Radio Merger | Total Tangible Property Member [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Acquired Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | 13,725 |  |  |  |
i Heart Media Transaction - CBS Radio Merger | Total Tangible Property Member [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Disposed Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total tangible assets |  |  |  |  |  |  |  |  | 8,149 |  |  |  |
i Heart Media Transaction - CBS Radio Merger | Radio Broadcasting Licences [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Acquired Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 50,621 |  |  |  |
i Heart Media Transaction - CBS Radio Merger | Radio Broadcasting Licences [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Disposed Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 56,299 |  |  |  |
i Heart Media Transaction - CBS Radio Merger | Goodwill [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Acquired Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 11,700 |  |  |  |
i Heart Media Transaction - CBS Radio Merger | Goodwill [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Disposed Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 6,852 |  |  |  |
i Heart Media Transaction - CBS Radio Merger | Advertiser lists and customer relationships [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Acquired Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 1,041 |  |  |  |
i Heart Media Transaction - CBS Radio Merger | Advertiser lists and customer relationships [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Disposed Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 0 |  |  |  |
i Heart Media Transaction - CBS Radio Merger | Acquired advertising contracts [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Acquired Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 265 |  |  |  |
i Heart Media Transaction - CBS Radio Merger | Acquired advertising contracts [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Disposed Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intangible assets |  |  |  |  |  |  |  |  | 0 |  |  |  |
EMF Sale [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Unaudited Pro Forma Summary Of Financial Information |  |  |  |  |  |  |  |  |  |  |  |  |
Expected gain on sale of station |  |  |  |  |  |  |  |  | 2,500 |  |  |  |
ProceedsFromDivestitureOfBusinesses |  |  |  |  |  |  |  |  | $ 57,800 |  |  |  |

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