Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended	12 Months Ended					12 Months Ended				12 Months Ended		0 Months Ended	12 Months Ended			0 Months Ended	12 Months Ended			0 Months Ended	12 Months Ended			0 Months Ended	12 Months Ended			0 Months Ended	12 Months Ended			0 Months Ended	12 Months Ended												0 Months Ended	12 Months Ended	0 Months Ended		12 Months Ended
	Feb. 11, 2014 Station	Oct. 01, 2007	Feb. 28, 2014	Feb. 28, 2013	Feb. 29, 2012	Feb. 28, 2013 IBiquity Inc	Feb. 28, 2014 IBiquity Inc	Feb. 28, 2014 Courseload Inc	Feb. 28, 2013 Courseload Inc	Feb. 28, 2013 TuneIn Inc	Feb. 28, 2014 Austin Texas	Feb. 29, 2012 Merlin Media LLC	Sep. 01, 2011 Merlin Media LLC	Feb. 25, 2013 Slovakia Radio Network (Radio)	Feb. 28, 2014 Slovakia Radio Network (Radio)	Feb. 28, 2013 Slovakia Radio Network (Radio)	Feb. 29, 2012 Slovakia Radio Network (Radio)	Jan. 03, 2013 Bulgaria Radio Network (Radio)	Feb. 28, 2014 Bulgaria Radio Network (Radio)	Feb. 28, 2013 Bulgaria Radio Network (Radio)	Feb. 29, 2012 Bulgaria Radio Network (Radio)	Oct. 31, 2012 Emmis Interactive Inc. (Radio)	Feb. 28, 2014 Emmis Interactive Inc. (Radio)	Feb. 28, 2013 Emmis Interactive Inc. (Radio)	Feb. 29, 2012 Emmis Interactive Inc. (Radio)	Oct. 01, 2012 Sampler Publications	Feb. 28, 2014 Sampler Publications	Feb. 28, 2013 Sampler Publications	Feb. 29, 2012 Sampler Publications	Aug. 23, 2012 KXOS-FM (Radio)	Feb. 28, 2014 KXOS-FM (Radio)	Feb. 28, 2013 KXOS-FM (Radio)	Feb. 29, 2012 KXOS-FM (Radio)	Apr. 06, 2011 Flint Peak Tower Site (Radio)	Feb. 28, 2014 Flint Peak Tower Site (Radio)	Feb. 28, 2013 Flint Peak Tower Site (Radio)	Feb. 29, 2012 Flint Peak Tower Site (Radio)	Feb. 28, 2014 Minimum	Feb. 28, 2014 Maximum	Feb. 29, 2012 Maximum IBiquity Inc	Feb. 28, 2014 Building	Feb. 28, 2014 Broadcasting equipment Minimum	Feb. 28, 2014 Broadcasting equipment Maximum	Feb. 28, 2014 Automobiles	Feb. 28, 2014 Office equipment and automobiles Minimum	Feb. 28, 2014 Office equipment and automobiles Maximum	Apr. 26, 2012 Local Programming And Marketing Agreement	Feb. 28, 2014 Local Programming And Marketing Agreement	Mar. 02, 2014 Subsequent Event Station	Feb. 28, 2014 New York and Los Angeles FM radio Station	Feb. 28, 2014 St. Louis, Austin, Indianapolis and Terre Haute FM radio Station	Feb. 28, 2014 St. Louis, Austin, Indianapolis and Terre Haute AM radio Station
Summary Of Significant Accounting Policies [Line Items]
Number of radio stations in operation																																																		3	15	3
Number of additional stations operated																																																	2
Percentage of controlling interest																																																			50.10%
Advertising agency fee rate based on gross revenue			15.00%
Number of stations to be purchased	2
Monthly expense reimbursement under LMA	$ 1,300,000
Future reduced monthly fee amount	700,000
Annual license fees received																																															8,400,000
Annual license fees increased in percent																																																3.50%
Property plant and equipment, estimated useful life																																									39 years	5 years	7 years	5 years	3 years	5 years
Depreciation and amortization			4,800,000	4,700,000	4,700,000
Selling cash price of land, towers and other equipment														21,200,000				1,700,000								8,700,000				85,500,000				6,000,000
Gain (loss) on sale of business														14,800,000	0	14,798,000	0	(1,300,000)	0	(1,254,000)	0	(700,000)	0	(654,000)	0	700,000	0	695,000	0	32,800,000
Transaction expenses and tax obligations																										200,000
Repayment of term loans under credit agreement																										8,500,000
Gain (loss) on sale of assets			8,000	9,877,000	(798,000)										0	244,000	0										0	0	23,000		0	0	1,000	4,900,000	0	0	4,882,000
Advertising costs capitalized, amortization period																																						6 months	2 years
Advertising expense			2,800,000	4,100,000	4,600,000
Percentage of ownership interest											25.00%		20.60%
Equity method investment, fair value													5,600,000
Impairment loss												3,100,000
Income (loss) from equity method investments												(2,500,000)
Available for sale investments, carrying value			7,181,000	7,889,000			500,000		6,000,000	500,000
Additional investment								250,000
Available-for-sale investment, other-than-temporary impairment						200,000																																		100,000
Carrying value of investment						0
Available for sale investments, fair value			6,750,000	6,500,000				6,250,000		500,000
Preferred equity interest													28,700,000
Fair value of Preferred equity interest													10,800,000
Impairment losses on cost method investments												10,800,000
Bater revenue			8,500,000	9,200,000	12,500,000
Barter expenses			8,700,000	9,200,000	12,400,000
One time payment made by Katz on behalf of Emmis to enter into a new long-term contract		15,300,000
Maximum borrowing capacity under credit agreement			$ 20,000,000