Other Significant Events Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended	9 Months Ended
	Apr. 30, 2018	Nov. 30, 2018	Aug. 31, 2018	Nov. 30, 2017	Aug. 31, 2018	Nov. 30, 2018	Nov. 30, 2017
Business Acquisition [Line Items]
Proceeds from Sale of Property Held-for-sale		$ 200
Impairment of long-lived assets		300	$ 200			$ 509	$ 0
Loss (gain) on sale of assets, net of disposition costs		235		$ 46		(31,817)	(76,660)
Local programming and marketing agreement fee						700
Restructuring Charges		245				1,423
Severance Costs		1,200
St Louis [Member]
Business Acquisition [Line Items]
Gross Proceeds from Divestiture of Business	$ 60,000
Net Proceeds from Divestiture of Businesses	40,500
Loss (gain) on sale of assets, net of disposition costs	$ 32,100	(235)		$ 0		32,418	$ 0
Local programming and marketing agreement fee						$ 700
Restructuring Charges		$ 200			$ 1,200