GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS: (Details 6) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items]
Goodwill Carrying Balance, as of December 31, 2013	$ 272,037
Goodwill, Period Increase (Decrease)	3,318
Goodwill Carrying Balances, as of December 31, 2014	275,355
Radio Broadcasting Segment [Member]
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items]
Goodwill Carrying Balance, as of December 31, 2013	70,823
Goodwill, Period Increase (Decrease)	2,712
Goodwill Carrying Balances, as of December 31, 2014	73,535
Reach Media Segment [Member]
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items]
Goodwill Carrying Balance, as of December 31, 2013	14,354
Goodwill, Period Increase (Decrease)	0
Goodwill Carrying Balances, as of December 31, 2014	14,354
Internet Segment [Member]
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items]
Goodwill Carrying Balance, as of December 31, 2013	21,816
Goodwill, Period Increase (Decrease)	606
Goodwill Carrying Balances, as of December 31, 2014	22,422
Cable Television Segment [Member]
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items]
Goodwill Carrying Balance, as of December 31, 2013	165,044
Goodwill, Period Increase (Decrease)	0
Goodwill Carrying Balances, as of December 31, 2014	$ 165,044