Business Combinations - Additional Information (Details) (USD $)	3 Months Ended		9 Months Ended		0 Months Ended		12 Months Ended	0 Months Ended	3 Months Ended
	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2014	Nov. 30, 2013	Jun. 10, 2014	Feb. 11, 2014	Feb. 28, 2014	Jun. 16, 2014	Sep. 30, 2014	Feb. 28, 2015
Business Acquisition
Cumulative acquisition costs	$ 1,500,000		$ 1,500,000
Gain recognized on contract settlement	0	0	2,500,000	0
Earn-out payments			1,000,000
Goodwill	74,337,000		74,337,000				12,639,000
Contract-Based Intangible Assets
Business Acquisition
Other intangibles					300,000
Amortization period of other intangibles					3 years
Customer-Related Intangible Assets
Business Acquisition
Other intangibles					2,200,000
Amortization period of other intangibles					7 years
Patents
Business Acquisition
Amortization period of other intangibles			7 years
Customer Lists
Business Acquisition
Amortization period of other intangibles			3 years
Trademarks
Business Acquisition
Amortization period of other intangibles			15 years
Two Thousand Fourteen Credit Agreement | Term Loan
Business Acquisition
Maximum borrowing capacity					185,000,000.0
Face amount of debt					185,000,000
Proceeds from issuance of debt					109,000,000
Long-term debt held in escrow					76,000,000
Two Thousand Fourteen Credit Agreement | Revolver
Business Acquisition
Maximum borrowing capacity					20,000,000.0
Station operating expense
Business Acquisition
Acquisition costs			400,000
Corporate expenses
Business Acquisition
Acquisition costs			200,000
YMF
Business Acquisition
LMA monthly expense						1,275,000
LMA monthly expense future reduction						740,000
WBLS-FM and WLIB-AM
Business Acquisition
Total consideration transferred					131,000,000
Cash paid at first closing					55,000,000
Ownership interest					49.90%
Cash payable at second closing					76,000,000
Goodwill expected to be tax deductible					58,946,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	8,300,000		21,900,000
Business Combination, Pro Forma Information, Station Operating Expenses since Acquisition Date, Actual	5,100,000		12,200,000
Acquisition costs			600,000				900,000
Licensing agreement fees	0		4,200,000
Other intangibles					2,469,000
Digonex
Business Acquisition
Total consideration transferred								3,000,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual									0
Business Combination, Pro Forma Information, Station Operating Expenses since Acquisition Date, Actual									0.7
Convertible preferred stock								1,000,000
Convertible debt	2,000,000		2,000,000					2,000,000
Holding rights convertible into common equity (percentage)								51.00%
Total holding rights convertible into common equity (percentage)								66.00%
Goodwill								2,752,000
Other intangibles								6,180,000
Digonex | Patents
Business Acquisition
Other intangibles								5,200,000
Digonex | Customer Lists
Business Acquisition
Other intangibles								700,000
Digonex | Trademarks
Business Acquisition
Other intangibles								300,000
Scenario, Forecast
Business Acquisition
Earn-out payments										$ 1,500,000