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
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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]
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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]
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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]
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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
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Unaudited Pro Forma Summary Of Financial Information
LongTermRevenueGrowthRate									1.00%

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