Summary of Significant Accounting Policies Noncontrolling Interests (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2016	Nov. 30, 2015
Noncontrolling Interest [Line Items]
Beginning balance			$ 38,397	$ 46,661
Net income (loss)	$ (581)	$ (420)	(477)	(1,574)
Distributions to noncontrolling interests			(4,263)	(4,391)
Ending balance	34,611	43,844	34,611	43,844
Austin Radio Partnership [Member]
Noncontrolling Interest [Line Items]
Beginning balance			47,556	47,883
Net income (loss)			(4,453)	4,724
Distributions to noncontrolling interests			(4,263)	(4,391)
Ending balance	47,746	48,216	47,746	48,216
Digonex [Member]
Noncontrolling Interest [Line Items]
Beginning balance			(9,159)	(1,222)
Net income (loss)			3,976	3,150
Distributions to noncontrolling interests			0	0
Ending balance	$ (13,135)	$ (4,372)	$ (13,135)	$ (4,372)