Intangible Assets and Goodwill - Additional Information (Detail) $ in Thousands	3 Months Ended	12 Months Ended
	May. 31, 2015 USD ($)	Feb. 29, 2016 USD ($) multiple	Feb. 28, 2015 USD ($)	Feb. 28, 2014 USD ($)	Jun. 16, 2014 USD ($)
Intangible Assets And Goodwill [Line Items]
Amortization of Intangible Assets	$ 900	$ 1,500
Indefinite lived intangibles		$ 205,129	$ 210,057	$ 150,558
FCC license term		8 years
Goodwill impairment testing, period of average income used in test		2 years
Impairment losses on intangible assets		$ 9,499	67,915	0
Goodwill written off		695	58,395
Goodwill		14,697	15,392
Maximum
Intangible Assets And Goodwill [Line Items]
Amortization of Intangible Assets				$ 100
Patents
Intangible Assets And Goodwill [Line Items]
Impairment losses on intangible assets		3,400
Goodwill | Digonex
Intangible Assets And Goodwill [Line Items]
Impairment losses on intangible assets		700
Goodwill | New York Cluster
Intangible Assets And Goodwill [Line Items]
Impairment losses on intangible assets			58,400
Radio
Intangible Assets And Goodwill [Line Items]
Impairment losses on intangible assets		$ 5,440	67,915
Radio | Minimum
Intangible Assets And Goodwill [Line Items]
Goodwill impairment testing, market multiple used in test calculation | multiple		8.0
Publishing
Intangible Assets And Goodwill [Line Items]
Goodwill impairment testing, market multiple used in test calculation | multiple		6.0
Impairment losses on intangible assets			$ 0
Digonex
Intangible Assets And Goodwill [Line Items]
Goodwill					$ 2,800