CONDENSED CONSOLIDATING FINANCIAL STATEMENTS: (Details 5) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CONSOLIDATED NET (LOSS) INCOME	$ (12,415)	$ (75,185)
NET CHANGE IN UNREALIZED LOSS ON INVESTMENT ACTIVITIES, NET OF TAX	(20)	97
COMPREHENSIVE (LOSS) INCOME	(12,435)	(75,088)
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	5,691	4,057
COMPREHENSIVE (LOSS) INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS	(18,126)	(79,145)
Radio One, Inc. [Member]
CONSOLIDATED NET (LOSS) INCOME	(18,106)	(79,242)
NET CHANGE IN UNREALIZED LOSS ON INVESTMENT ACTIVITIES, NET OF TAX	0	0
COMPREHENSIVE (LOSS) INCOME	(18,106)	(79,242)
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	0	0
COMPREHENSIVE (LOSS) INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS	(18,106)	(79,242)
Wholly-Owned Gurantor Subsidiaries [Member]
CONSOLIDATED NET (LOSS) INCOME	5,553	3,507
NET CHANGE IN UNREALIZED LOSS ON INVESTMENT ACTIVITIES, NET OF TAX	0	0
COMPREHENSIVE (LOSS) INCOME	5,553	3,507
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	0	0
COMPREHENSIVE (LOSS) INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS	5,553	3,507
Non Whollyowned Guarantor Subsidiaries [Member]
CONSOLIDATED NET (LOSS) INCOME	(768)	(618)
NET CHANGE IN UNREALIZED LOSS ON INVESTMENT ACTIVITIES, NET OF TAX	0	0
COMPREHENSIVE (LOSS) INCOME	(768)	(618)
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	0	0
COMPREHENSIVE (LOSS) INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS	(768)	(618)
Non-Guarantor Subsidiaries [Member]
CONSOLIDATED NET (LOSS) INCOME	12,013	8,737
NET CHANGE IN UNREALIZED LOSS ON INVESTMENT ACTIVITIES, NET OF TAX	(20)	97
COMPREHENSIVE (LOSS) INCOME	11,993	8,834
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	0	0
COMPREHENSIVE (LOSS) INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS	11,993	8,834
Consolidation Adjustments [Member]
CONSOLIDATED NET (LOSS) INCOME	(11,107)	(7,569)
NET CHANGE IN UNREALIZED LOSS ON INVESTMENT ACTIVITIES, NET OF TAX	0	0
COMPREHENSIVE (LOSS) INCOME	(11,107)	(7,569)
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	5,691	4,057
COMPREHENSIVE (LOSS) INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS	$ (16,798)	$ (11,626)