Segment Information - Results of Operations of Business Segments (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2018	Feb. 28, 2017	Feb. 29, 2016
Segment Reporting Information [Line Items]
Net revenues	$ 148,487	$ 214,568	$ 231,433
Station Operating Expenses Excluding Depreciation And Amortization	119,758	180,085	183,394
Corporate expenses excluding depreciation and amortization expense	10,712	11,359	13,023
Impairment losses on intangible assets	265	9,843	9,499
Depreciation and amortization	3,628	4,806	5,797
Gain on sale of radio and publishing assets, net of disposition costs	(76,604)	(23,557)	0
Loss (gain) on sale of assets	(69)	124	56
OPERATING INCOME	90,797	31,908	19,664
Total Assets	271,144	289,338
Radio
Segment Reporting Information [Line Items]
Net revenues	142,852	165,148	169,228
Station Operating Expenses Excluding Depreciation And Amortization	102,413	115,366	116,862
Corporate expenses excluding depreciation and amortization expense		0	0
Impairment losses on intangible assets	265	6,855	5,440
Depreciation and amortization	2,792	3,462	3,345
Gain on sale of radio and publishing assets, net of disposition costs	(76,745)	(3,478)
Loss (gain) on sale of assets	(82)	124	54
OPERATING INCOME	114,209	42,819	43,527
Total Assets	249,044	260,228
Publishing
Segment Reporting Information [Line Items]
Net revenues	4,521	48,559	60,992
Station Operating Expenses Excluding Depreciation And Amortization	5,035	51,063	58,891
Corporate expenses excluding depreciation and amortization expense		0	0
Impairment losses on intangible assets		0	0
Depreciation and amortization	19	230	266
Gain on sale of radio and publishing assets, net of disposition costs	141	(20,079)
Loss (gain) on sale of assets	13	0	0
OPERATING INCOME	(687)	17,345	1,835
Total Assets	1,293	1,746
Corporate and Emerging Technologies [Member]
Segment Reporting Information [Line Items]
Net revenues	1,114	861	1,213
Station Operating Expenses Excluding Depreciation And Amortization	12,310	13,656	7,641
Corporate expenses excluding depreciation and amortization expense	10,712	11,359	13,023
Impairment losses on intangible assets		2,988	4,059
Depreciation and amortization	817	1,114	2,186
Gain on sale of radio and publishing assets, net of disposition costs	0	0
Loss (gain) on sale of assets	0	0	2
OPERATING INCOME	(22,725)	(28,256)	$ (25,698)
Total Assets	$ 20,807	$ 27,364