v3.10.0.1
ACQUISITIONS, DIVESTITURES AND PRO FORMA SUMMARY (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Nov. 17, 2017
CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Unaudited Pro Forma Summary Of Financial Information                        
ProFormaWeightedAverageSharesOutstandingDiluted                 138,070,000 141,790,000 139,908,000  
WeightedAverageBasicSharesOutstandingProForma                 138,070,000 140,298,000 139,908,000  
Income (Loss) from Continuing Operations, Per Outstanding Share, Total                 $ (2.59) $ 2.67 $ (4.2)  
Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share                 0.01 0.01 0  
Income (Loss) from Continuing Operations, Per Diluted Share                 (2.59) 2.64 (4.2)  
Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share                 $ 0.01 $ 0.01 $ 0  
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest                 $ (357,608) $ 374,135 $ (587,393)  
Income Loss From Discontinued Operations Net Of Tax                 1,152 836 0  
Payments to Acquire Businesses, Gross                 71,434 24,000 92  
Intangible assets amortization period maximum 5 years                      
Property, Plant and Equipment, Gross $ 459,613       $ 461,131       459,613 461,131    
Property Plant And Equipment Net 317,030       346,507       317,030 346,507    
Depreciation                 28,709 13,215 8,689  
AssetRetirementObligation $ 2,030       $ 1,714       2,030 1,714 1,044  
Merger and acquisition costs and restructuring charges                 3,014 41,313 708  
Restructuring Charges                 5,830 16,922 0  
Transition Services Costs                 0 2,960 0  
Other Restructuring Costs                 687 147 0  
Total Restructuring Charge and Transition Services                 5,830 16,922 0  
Lease Abandonment Costs                 1,315 2,874 0  
Changes in Estimates                 0 0    
Workforce Reduction                 3,599 10,441 0  
Costs to Exit Duplicative Contracts                 229 500 0  
Net revenues                 1,473,266 1,607,777 1,656,123  
Net income                 $ (356,456) $ 374,971 $ (587,393)  
Net income per common share - basic                 $ (2.58) $ 2.66 $ (4.21)  
Net income per common share - diluted                 $ (2.58) $ 2.63 $ (4.21)  
Net income, available to common shareholders                 $ (356,456) $ 372,956 $ (589,294)  
Income (Loss) from Continuing Operations, Per Outstanding Share, Total $ (2.8) $ 0.26 $ 0.01 $ (0.1) $ 2.63 $ 0.11 $ 0.16 $ (0.24) $ (2.63) $ 4.49 $ 0.94  
Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share 0 0 0.01 0 0.01 0 0 0 0.01 0.02 0  
Income (Loss) from Continuing Operations, Per Diluted Share (2.8) 0.26 0.01 (0.1) 2.58 0.28 0.26 0.11 (2.63) 4.37 0.91  
Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share $ 0 $ 0 $ 0.01 $ 0 $ 0.01 $ 0 $ 0 $ 0 $ 0.01 $ 0.02 $ 0  
Weighted Average Number Of Shares Outstanding Basic 138,033,000 138,740,000 138,639,000 138,939,000 88,309,000 38,955,000 38,945,000 38,910,000 138,069,608 51,392,899 38,500,495  
Weighted Average Number Of Diluted Shares Outstanding 138,033,000 139,103,000 139,263,000 138,939,000 89,887,000 39,728,000 39,656,000 38,910,000 138,069,608 52,885,156 39,568,062  
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest $ (386,568) $ 36,590 $ 1,597 $ (14,206) $ 231,829 $ 4,100 $ 6,414 $ (9,331) $ (362,587) $ 233,013 $ 38,065  
Income Loss From Discontinued Operations Net Of Tax (378) $ 358 $ 844 $ 328 836 $ 0 $ 0 $ 0 1,152 836 0  
Adjustment to Acquired Goodwill Current Assets                 1,300      
Adjustments to Acquired Goodwill TIA                 2,300      
Equipment [Member]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 222,847       199,044       $ 222,847 199,044    
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 36,038       $ 46,195       $ 36,038 46,195    
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      
Radio Broadcasting Licences [Member]                        
Purchase price allocation [Abstract]                        
Total intangible assets                 $ 0 17,174    
Goodwill [Member]                        
Purchase price allocation [Abstract]                        
Total intangible assets                 $ 0 $ 43    
KRWZAM [Member]                        
Unaudited Pro Forma Summary Of Financial Information                        
Gain Loss on sale of station                     300  
ProceedsFromDivestitureOfBusinesses                     $ 3,800  
Charlotte [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Unaudited Pro Forma Summary Of Financial Information                        
Discount Rates                 9.00%      
Charlotte [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | MeasurementInputLongTermRevenueGrowthRateMemberMember [Member]                        
Unaudited Pro Forma Summary Of Financial Information                        
LongTermRevenueGrowthRate                 1.00%      
Charlotte [Member]                        
Purchase price allocation [Abstract]                        
Total assets 24,996               $ 24,996      
Net assets acquired 24,000               24,000      
Total liabilities acquired 996               996      
Property, Plant and Equipment, Gross 7,325               7,325      
Charlotte [Member] | Unfavorable lease liability [Member]                        
Purchase price allocation [Abstract]                        
Total current liabilities 735               735      
Charlotte [Member] | OtherNoncurrentLiabilitiesMember                        
Purchase price allocation [Abstract]                        
Other long-term liabilities 261               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               287      
CBS Radio [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total assets 3,541,479               3,541,479      
Net assets acquired 1,168,848               1,168,848      
Total current assets 275,900               275,900      
Total current liabilities 135,248               135,248      
Total liabilities acquired 2,372,631               2,372,631      
Property, Plant and Equipment, Gross 280,807               $ 280,807      
CBS Radio [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | MeasurementInputLongTermRevenueGrowthRateMemberMember [Member]                        
Unaudited Pro Forma Summary Of Financial Information                        
LongTermRevenueGrowthRate                 1.00%      
CBS Radio [Member] | CurrentLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired 13,859               $ 13,859      
CBS Radio [Member] | CurrentLiabilitiesDomain [Domain] | Unfavorable lease Liabilities Member [Member]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired 12,770               12,770      
CBS Radio [Member] | CurrentLiabilitiesDomain [Domain] | Unfavorable contracts Member [Member]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired 22,597               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               1,376,900      
CBS Radio [Member] | CurrentLiabilitiesDomain [Domain] | Deferred Tax Liability Member [Member]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired 777,496               777,496      
CBS Radio [Member] | Accrued Compensation Member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities 26,324               26,324      
CBS Radio [Member] | Current Portion of Long Term Debt Member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities 10,600               10,600      
CBS Radio [Member] | Current portion of unfavorable contracts Member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities 4,803               4,803      
CBS Radio [Member] | Accrued interest member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities 4,529               4,529      
CBS Radio [Member] | Current Portion of Unearned Revenue Member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities 14,971               14,971      
CBS Radio [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities 36,558               $ 36,558      
CBS Radio [Member]                        
Unaudited Pro Forma Summary Of Financial Information                        
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 37,463               $ 37,463      
CBS Radio [Member] | Accounts Receivable [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current assets 241,548               241,548      
CBS Radio [Member] | Prepaid contracts member [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current assets 4,160               4,160      
CBS Radio [Member] | PrepaidExpensesMember [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current assets 21,101               21,101      
CBS Radio [Member] | OtherCurrentAssetsMember | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current assets 9,091               9,091      
CBS Radio [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
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
CBS Radio [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired                       13,859
CBS Radio [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | Unfavorable lease Liabilities Member [Member]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired                       12,770
CBS Radio [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | Unfavorable contracts Member [Member]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired                       22,597
CBS Radio [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | Noncurrent Portion of Long Term Debt Member [Member]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired                       1,376,900
CBS Radio [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | Deferred Tax Liability Member [Member]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired                       780,832
CBS Radio [Member] | As Previously Reported [Member] | Accrued Compensation Member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities                       26,324
CBS Radio [Member] | As Previously Reported [Member] | Current Portion of Long Term Debt Member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities                       10,600
CBS Radio [Member] | As Previously Reported [Member] | Current portion of unfavorable contracts Member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities                       4,803
CBS Radio [Member] | As Previously Reported [Member] | Accrued interest member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities                       4,529
CBS Radio [Member] | As Previously Reported [Member] | Current Portion of Unearned Revenue Member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities                       14,971
CBS Radio [Member] | As Previously Reported [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities                       36,137
CBS Radio [Member] | As Previously Reported [Member] | AccruedExpensesMember [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities                       35,154
CBS Radio [Member] | As Previously Reported [Member] | Accounts Receivable [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current assets                       241,548
CBS Radio [Member] | As Previously Reported [Member] | Prepaid contracts member [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current assets                       4,160
CBS Radio [Member] | As Previously Reported [Member] | PrepaidExpensesMember [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current assets                       20,625
CBS Radio [Member] | As Previously Reported [Member] | OtherCurrentAssetsMember | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current assets                       7,350
CBS Radio [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total assets 1,320               1,320      
Net assets acquired 0               0      
Total current assets 2,217               2,217      
Total current liabilities 2,730               2,730      
Total liabilities acquired 1,320               1,320      
CBS Radio [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired 0               0      
CBS Radio [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | Unfavorable lease Liabilities Member [Member]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired 0               0      
CBS Radio [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | Unfavorable contracts Member [Member]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired 0               0      
CBS Radio [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | Noncurrent Portion of Long Term Debt Member [Member]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired 0               0      
CBS Radio [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | Deferred Tax Liability Member [Member]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired (3,336)               (3,336)      
CBS Radio [Member] | Adjustment [Member] | Accrued Compensation Member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities 0               0      
CBS Radio [Member] | Adjustment [Member] | Current Portion of Long Term Debt Member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities 0               0      
CBS Radio [Member] | Adjustment [Member] | Current portion of unfavorable contracts Member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities 0               0      
CBS Radio [Member] | Adjustment [Member] | Accrued interest member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities 0               0      
CBS Radio [Member] | Adjustment [Member] | Current Portion of Unearned Revenue Member [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities 0               0      
CBS Radio [Member] | Adjustment [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities 421               421      
CBS Radio [Member] | Adjustment [Member] | AccruedExpensesMember [Member] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current liabilities 2,309               2,309      
CBS Radio [Member] | Adjustment [Member] | Accounts Receivable [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current assets 0               0      
CBS Radio [Member] | Adjustment [Member] | Prepaid contracts member [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current assets 0               0      
CBS Radio [Member] | Adjustment [Member] | PrepaidExpensesMember [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current assets 476               476      
CBS Radio [Member] | Adjustment [Member] | OtherCurrentAssetsMember | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total current assets 1,741               1,741      
CBS Radio [Member] | OtherNoncurrentLiabilitiesMember | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired 33,761               33,761      
CBS Radio [Member] | OtherNoncurrentLiabilitiesMember | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired                       31,835
CBS Radio [Member] | OtherNoncurrentLiabilitiesMember | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total liabilities acquired 1,926               1,926      
CBS Radio [Member] | Leasehold improvements [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 36,029               36,029      
CBS Radio [Member] | Leasehold improvements [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross                       26,255
CBS Radio [Member] | Leasehold improvements [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 9,774               9,774      
CBS Radio [Member] | Furniture and equipment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 4,080               4,080      
CBS Radio [Member] | Furniture and equipment [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross                       10,929
CBS Radio [Member] | Furniture and equipment [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross (6,849)               (6,849)      
CBS Radio [Member] | Equipment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 97,832               97,832      
CBS Radio [Member] | Equipment [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross                       76,486
CBS Radio [Member] | Equipment [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 21,346               21,346      
CBS Radio [Member] | Land and Land Improvements [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 1,348               1,348      
CBS Radio [Member] | Land and Land Improvements [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross                       3,988
CBS Radio [Member] | Land and Land Improvements [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross (2,640)               (2,640)      
CBS Radio [Member] | Land [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 112,880               112,880      
CBS Radio [Member] | Land [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross                       112,880
CBS Radio [Member] | Land [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 0               0      
CBS Radio [Member] | Building [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 14,040               14,040      
CBS Radio [Member] | Building [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross                       19,246
CBS Radio [Member] | Building [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross (5,206)               (5,206)      
CBS Radio [Member] | ConstructionInProgressMember | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 14,598               14,598      
CBS Radio [Member] | ConstructionInProgressMember | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross                       14,598
CBS Radio [Member] | ConstructionInProgressMember | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 0               0      
CBS Radio [Member] | Total Tangible Property Member [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross                       264,382
CBS Radio [Member] | Total Tangible Property Member [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 16,425               16,425      
CBS Radio [Member] | Radio Broadcasting Licences [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets non amortizable 1,880,400               1,880,400      
CBS Radio [Member] | Radio Broadcasting Licences [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets non amortizable                       1,880,400
CBS Radio [Member] | Radio Broadcasting Licences [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets non amortizable 0               0      
CBS Radio [Member] | Goodwill [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets non amortizable 799,463               799,463      
CBS Radio [Member] | Goodwill [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets non amortizable                       820,961
CBS Radio [Member] | Goodwill [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets non amortizable (21,498)               (21,498)      
CBS Radio [Member] | Advertiser lists and customer relationships [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets amortizable 27,453               27,453      
CBS Radio [Member] | Advertiser lists and customer relationships [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets amortizable                       27,453
CBS Radio [Member] | Advertiser lists and customer relationships [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets amortizable 0               0      
CBS Radio [Member] | Assets Held For Sale [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets amortizable 255,650               255,650      
CBS Radio [Member] | Assets Held For Sale [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total assets                       255,650
CBS Radio [Member] | Assets Held For Sale [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total assets 0               0      
CBS Radio [Member] | Lease Agreements [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets amortizable 16,580               16,580      
CBS Radio [Member] | Lease Agreements [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total assets                       16,580
CBS Radio [Member] | Lease Agreements [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total assets 0               0      
CBS Radio [Member] | Other Noncurrent Assets [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets amortizable 5,226               5,226      
CBS Radio [Member] | Other Noncurrent Assets [Member] | As Previously Reported [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total assets                       1,050
CBS Radio [Member] | Other Noncurrent Assets [Member] | Adjustment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total assets 4,176               4,176      
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                        
Discount Rates                 9.00%      
i Heart Media Transaction - CBS Radio Merger | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | MeasurementInputLongTermRevenueGrowthRateMemberMember [Member]                        
Unaudited Pro Forma Summary Of Financial Information                        
LongTermRevenueGrowthRate                 1.00%      
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] | 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] | 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 | 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 | 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 | 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 | 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 | Acquired advertising contracts [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | Assets Acquired Member [Member]                        
Purchase price allocation [Abstract]                        
Total intangible assets                 265      
Bonneville Transaction - CBS Radio Member | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Unaudited Pro Forma Summary Of Financial Information                        
Gain Loss on sale of station                 200      
ProceedsFromDivestitureOfBusinesses                 141,000      
Bonneville Transaction - CBS Radio Member                        
Unaudited Pro Forma Summary Of Financial Information                        
Gain Loss on sale of station                 200      
ProceedsFromDivestitureOfBusinesses                 140,300      
EMF Sale [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Unaudited Pro Forma Summary Of Financial Information                        
Gain Loss on sale of station                 2,500      
ProceedsFromDivestitureOfBusinesses                 57,800      
Emmis [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Acquisition [Line Items]                        
Payments to Acquire Businesses, Gross                 15,000      
Purchase price allocation [Abstract]                        
Total intangible assets                 13,442      
Total assets 15,000               15,000      
Net assets acquired 15,000               $ 15,000      
Unaudited Pro Forma Summary Of Financial Information                        
Discount Rates                 9.00%      
Emmis [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | MeasurementInputLongTermRevenueGrowthRateMemberMember [Member]                        
Unaudited Pro Forma Summary Of Financial Information                        
LongTermRevenueGrowthRate                 1.00%      
Emmis [Member] | Equipment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 1,558               $ 1,558      
Emmis [Member] | Equipment [Member] | Maximum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Tangible assets amortization period                 7 years      
Emmis [Member] | Equipment [Member] | Minimum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Tangible assets amortization period                 3 years      
Emmis [Member] | Total Tangible Property Member [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Property, Plant and Equipment, Gross 1,558               $ 1,558      
Emmis [Member] | Radio Broadcasting Licences [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total intangible assets                 12,785      
Emmis [Member] | Goodwill [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total intangible assets                 332      
Emmis [Member] | Advertiser lists and customer relationships [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total intangible assets                 $ 207      
Emmis [Member] | Advertiser lists and customer relationships [Member] | Maximum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets amortization period                 15 years      
Emmis [Member] | Advertiser lists and customer relationships [Member] | Minimum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets amortization period                 5 years      
Emmis [Member] | Acquired advertising contracts [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total intangible assets                 $ 114      
Emmis [Member] | Acquired advertising contracts [Member] | Maximum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets amortization period                 1 year      
Emmis [Member] | Acquired advertising contracts [Member] | Minimum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets amortization period                 1 year      
Emmis [Member] | Other Noncurrent Assets [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total intangible assets                 $ 4      
Emmis [Member] | Other Noncurrent Assets [Member] | Maximum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets amortization period                 2 years      
Emmis [Member] | Other Noncurrent Assets [Member] | Minimum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets amortization period                 2 years      
Jerry Lee [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Acquisition [Line Items]                        
Payments to Acquire Businesses, Gross                 $ 57,500      
Purchase price allocation [Abstract]                        
Total intangible assets                 55,453      
Total assets 56,434               56,434      
Net assets acquired $ 56,434               $ 56,434      
Unaudited Pro Forma Summary Of Financial Information                        
Discount Rates                 9.00%      
Jerry Lee [Member] | Maximum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Tangible assets amortization period                 7 years      
Jerry Lee [Member] | Minimum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Tangible assets amortization period                 3 years      
Jerry Lee [Member] | Equipment [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total tangible assets                 $ 981      
Jerry Lee [Member] | Equipment [Member] | Minimum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Tangible assets amortization period                 3 years      
Jerry Lee [Member] | Total Tangible Property Member [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total tangible assets                 $ 981      
Jerry Lee [Member] | Radio Broadcasting Licences [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total intangible assets                 27,346      
Jerry Lee [Member] | Goodwill [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total intangible assets                 24,396      
Jerry Lee [Member] | Acquired advertising contracts [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total intangible assets                 $ 477      
Jerry Lee [Member] | Acquired advertising contracts [Member] | Maximum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets amortization period                 1 year      
Jerry Lee [Member] | Acquired advertising contracts [Member] | Minimum [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Intangible assets amortization period                 1 year      
Jerry Lee [Member] | Other Noncurrent Assets [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Purchase price allocation [Abstract]                        
Total intangible assets                 $ 3,234      
Beasley - WXTU [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]                        
Unaudited Pro Forma Summary Of Financial Information                        
Gain Loss on sale of station                 4,400      
ProceedsFromDivestitureOfBusinesses                 $ 38,000      
Beasley - WXTU [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain] | MeasurementInputLongTermRevenueGrowthRateMemberMember [Member]                        
Unaudited Pro Forma Summary Of Financial Information                        
LongTermRevenueGrowthRate                 1.00%