SEGMENT INFORMATION: (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012		Mar. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Net Revenue	$ 109,730	$ 112,171	$ 108,414	$ 111,072	$ 111,595	$ 118,391	[1]	$ 119,602	[1]	$ 99,112	[1]	$ 105,885	$ 109,894	$ 105,830	[2]	$ 102,964	$ 441,387	$ 448,700	$ 424,573
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets)																	327,400	322,982	314,274
Depreciation and Amortization																	36,822	37,870	38,777
Impairment of Long-Lived Assets																	0	14,880	313
Operating income (loss)	19,424	19,560	22,350	15,831	17,388	21,795	[1]	18,330	[1]	15,455	[1]	14,601	21,498	21,385	[2]	13,725	77,165	72,968	71,209
Total Assets	1,398,555				1,414,355												1,398,555	1,414,355
Radio Broadcasting [Member]
Segment Reporting Information [Line Items]
Net Revenue																	213,037	222,544	223,404
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets)																	126,842	128,001	129,843
Depreciation and Amortization																	5,039	6,071	6,308
Impairment of Long-Lived Assets																	0	14,880	313
Operating income (loss)																	81,156	73,592	86,940
Total Assets	814,621				798,900												814,621	798,900
Reach Media [Member]
Segment Reporting Information [Line Items]
Net Revenue																	52,543	56,741	55,154
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets)																	50,849	50,833	54,168
Depreciation and Amortization																	1,146	1,242	1,302
Impairment of Long-Lived Assets																	0	0	0
Operating income (loss)																	548	4,666	(316)
Total Assets	36,376				39,700												36,376	39,700
Internet [Member]
Segment Reporting Information [Line Items]
Net Revenue																	24,337	25,639	19,852
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets)																	22,998	25,319	21,179
Depreciation and Amortization																	2,422	2,490	3,210
Impairment of Long-Lived Assets																	0	0	0
Operating income (loss)																	(1,083)	(2,170)	(4,537)
Total Assets	33,375				34,123												33,375	34,123
Cable Television [Member]
Segment Reporting Information [Line Items]
Net Revenue																	157,086	149,472	131,178
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets)																	104,210	100,117	91,361
Depreciation and Amortization																	26,115	26,324	26,864
Impairment of Long-Lived Assets																	0	0	0
Operating income (loss)																	26,761	23,031	12,953
Total Assets	464,661				495,766												464,661	495,766
Corporate/Eliminations/Other [Member]
Segment Reporting Information [Line Items]
Net Revenue																	(5,616)	(5,696)	(5,015)
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets)																	22,501	18,712	17,723
Depreciation and Amortization																	2,100	1,743	1,093
Impairment of Long-Lived Assets																	0	0	0
Operating income (loss)																	(30,217)	(26,151)	(23,831)
Total Assets	$ 49,522				$ 45,866												$ 49,522	$ 45,866

[1] The net loss from continuing operations for the quarters ended March 31, 2013, June 30, 2013 and September 30, 2013 includes approximately $1.4 million, $9.8 million and $3.7 million, respectively of impairment charges.

[2] The net income from continuing operations for the quarter ended June 30, 2012, includes $313,000 of impairment charges.