ACQUISITIONS, DIVESTITURES AND PRO FORMA SUMMARY (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Nov. 17, 2017
Acquisition [Line Items]
Payments to Acquire Businesses, Gross			$ 15,000	$ 24,000
Purchase price allocation [Abstract]
Total intangible assets			0		$ 17,174
Property Plant And Equipment Net	$ 324,669		324,669		346,507
The expense recognized in the consolidated statement of income as merger and acquisition costs [Abstract]
Merger and acquisition costs and restructuring charges	687	$ 5,829	2,071	16,100
Restructuring Charges	686	0	2,167	0
Transition Services Costs			0
Other Restructuring Costs			472	0
Total Restructuring Charge and Transition Services			0
Lease Abandonment Costs			257	0
Changes in Estimates			0	0
Workforce Reduction	337	0	928	0
Costs to Exit Duplicative Contracts	349	0	510	0
Unaudited Pro Forma Summary Of Financial Information
Net revenues	372,124	426,728	674,131	768,622
Net income	$ 2,934	$ 39,451	$ (9,903)	$ 45,696
Net income per common share - basic	$ 0.02	$ 0.28	$ (0.07)	$ 0.32
Net income per common share - diluted	$ 0.02	$ 0.28	$ (0.07)	$ 0.32
Net income, available to common shareholders	$ 2,934	$ 38,901	$ (9,903)	$ 44,596
ProFormaWeightedAverageSharesOutstandingDiluted	139,263,363	141,063,093	138,961,728	141,368,209
WeightedAverageBasicSharesOutstandingProForma	138,638,554	140,352,114	138,961,728	140,342,655
Income (Loss) from Continuing Operations, Per Outstanding Share, Total	$ 0.01	$ 0.15	$ (0.09)	$ (0.1)
Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share	0.01	0	0.01	0
Income (Loss) from Continuing Operations, Per Diluted Share	0.01	0.15	(0.09)	(0.1)
Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share	$ 0.01	$ 0	$ 0.01	$ 0
Weighted Average Number Of Shares Outstanding Basic	138,638,554	38,944,620	138,961,728	38,935,161
Weighted Average Number Of Diluted Shares Outstanding	139,263,363	39,655,599	138,961,728	38,935,161
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	$ 1,597	$ 6,414	$ (12,609)	$ (2,917)
Income Loss From Discontinued Operations Net Of Tax	844	$ 0	1,172	$ 0
CBS Radio [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]
Purchase price allocation [Abstract]
Total intangible assets			2,999,619		$ 3,002,094
Total assets	3,539,901		3,539,901
Net assets acquired	1,168,848		1,168,848
Total current assets	275,900		275,900
Total current liabilities	133,283		133,283
Total liabilities acquired	2,371,053		2,371,053
Property, Plant and Equipment, Gross	264,382		264,382
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	777,883		777,883
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
Fair Value Inputs Long Term Revenue Growth Rate					1.00%
Discount Rates					9.00%
Shares Issued Pursuant to Acquisition					101,407,494
CBS Radio [Member] | AccruedExpensesMember [Member] | LongTermLiabilitiesDomain [Domain]
Purchase price allocation [Abstract]
Total current liabilities	35,498		35,498
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 intangible assets			2,475		$ 3,002,094
Total assets						$ 3,540,159
Net assets acquired						1,168,848
Total current assets						273,683
Total current liabilities						132,518
Total liabilities acquired						2,371,311
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	(258)		(258)
Net assets acquired	0		0
Total current assets	2,217		2,217
Total current liabilities	765		765
Total liabilities acquired	(258)		(258)
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	(2,949)		(2,949)
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	344		344
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	81,407		81,407
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	4,921		4,921
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	0		0
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	816,560		816,560
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	(4,401)		(4,401)
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	2,976		2,976
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	1,926		1,926
Bonneville Transaction - CBS Radio Member | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]
Unaudited Pro Forma Summary Of Financial Information
ProceedsFromDivestitureOfBusinesses			141,000
Emmis [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]
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
Fair Value Inputs Long Term Revenue Growth Rate			1.00%
Discount Rates			9.00%
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
Beasley - WXTU [Member] | CurrentLiabilitiesDomain [Domain] | LongTermLiabilitiesDomain [Domain]
Unaudited Pro Forma Summary Of Financial Information
Expected gain on sale of station			3,500
ProceedsFromDivestitureOfBusinesses			$ 38,000