Acquisitions and Dispositions - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2018	Feb. 28, 2017	Feb. 29, 2016
Business Acquisition [Line Items]
Minimum required sale proceeds	$ 80,000
Gain on sale of radio and publishing assets, net of disposition costs	76,604	$ 23,557	$ 0
LMA fees	10,752	10,331	10,331
Kpwr Fm
Business Acquisition [Line Items]
LMA fees	421	0	0
Kpwr Fm
Business Acquisition [Line Items]
Net Proceeds from Divestiture of Businesses	73,600
Gain on sale of radio and publishing assets, net of disposition costs	76,745	0	0
Hour Magazines
Business Acquisition [Line Items]
Gross Proceeds from Divestiture of Business		6,500
Net Proceeds from Divestiture of Businesses		2,900
Stated Purchase Price for Divestiture of Business		6,500
Proceeds from asset sale held in escrow		700
Business Divestiture Disposition Costs		2,900
Gain on sale of radio and publishing assets, net of disposition costs	(141)	2,677	0
Terre Haute Cluster
Business Acquisition [Line Items]
Gross Proceeds from Divestiture of Business		5,200
Net Proceeds from Divestiture of Businesses	4,800
Gain on sale of radio and publishing assets, net of disposition costs	0	3,478	0
Texas Monthly
Business Acquisition [Line Items]
Gross Proceeds from Divestiture of Business		25,000
Net Proceeds from Divestiture of Businesses		23,400
Stated Purchase Price for Divestiture of Business		25,000
Divestiture Working Capital Adjustments		700
Business Divestiture Disposition Costs		900
Gain on sale of radio and publishing assets, net of disposition costs	$ 0	17,402	$ 0
Severance | Hour Magazines
Business Acquisition [Line Items]
Business Divestiture Disposition Costs		1,600
Transaction advisory fees | Hour Magazines
Business Acquisition [Line Items]
Business Divestiture Disposition Costs		$ 1,000