Intangible Assets and Goodwill - Change in Goodwill Carrying Value (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2018	Feb. 28, 2017	Feb. 29, 2016
Goodwill [Line Items]
Goodwill Including Goodwill Of Discontinued Operations	$ 4,338	$ 4,603	$ 14,697
Goodwill, Sale of Entity		(8,036)
Goodwill, Impairment	(265)	(2,058)
Indianapolis Cluster | Radio [Member]
Goodwill [Line Items]
Goodwill Including Goodwill Of Discontinued Operations		265	265
Goodwill, Impairment	265
Austin Cluster | Radio [Member]
Goodwill [Line Items]
Goodwill Including Goodwill Of Discontinued Operations	$ 4,338	4,338	4,338
Texas Monthly | Publishing
Goodwill [Line Items]
Goodwill Including Goodwill Of Discontinued Operations			8,036
Goodwill, Sale of Entity		(8,036)
Digonex | Corporate and Emerging Technologies
Goodwill [Line Items]
Goodwill Including Goodwill Of Discontinued Operations			$ 2,058
Goodwill, Impairment		$ 2,058