Intangible Assets and Goodwill - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Feb. 28, 2013	Feb. 28, 2014 multiple	Feb. 28, 2013	Feb. 28, 2014 Maximum	Feb. 28, 2013 Maximum	Feb. 29, 2012 Maximum
Intangible Assets And Goodwill [Line Items]
FCC license term		8 years
Carrying amount of indefinite-lived intangibles	$ 150,500,000	$ 150,600,000	$ 150,500,000
Goodwill impairment testing, period of average income used in test		2 years
Goodwill impairment testing, market multiple used in test calculation		7.0
Goodwill impairment testing, market multiple used in test calculation, minimum		5.0
Goodwill impairment testing, market multiple used in test calculation, maximum		7.0
Goodwill written off	400,000		448,000
Goodwill	12,600,000	12,600,000	12,600,000
Amortization expense from definite-lived intangibles				100,000	100,000	100,000
Amortization expense, next twelve months				100,000
Amortization expense, year two				100,000
Amortization expense, year three				100,000
Amortization expense, year four				100,000
Amortization expense, year five				$ 100,000