INCOME TAXES: (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
INCOME TAXES:
Deferred tax assets and deferred tax liabilities, including those classified as held for sale	$ 1,300,000
Net operating and capital losses:
Federal	5,738,000	1,550,000
State	66,990,000	87,623,000
Broadcast licenses	29,170,000	18,087,000
Intangibles	5,871,000	5,390,000
Other	33,803,000	20,965,000
Deferred tax assets, Gross	141,572,000	133,615,000
Valuation allowance for deferred tax assets	(59,407,000)	(79,136,000)	(77,600,000)	(76,800,000)
Total deferred tax assets	82,165,000	54,479,000
Current and Long-Term Deferred Tax Liabilities:
Broadcast licenses	(13,090,000)	(10,115,000)
Intangibles	(216,505,000)	(204,230,000)
Property & equipment, net	(25,359,000)	(24,877,000)
Contingent interest obligations	(52,388,000)	(52,298,000)
Other	(10,213,000)	(5,571,000)
Total deferred tax liabilities	(317,555,000)	(297,091,000)
Net tax liabilities	(235,390,000)	(242,612,000)
Valuation allowance
Increase (decrease) in valuation allowance due to operating losses	(19,700,000)	1,600,000	700,000
Unrecognized tax benefits
Unrecognized tax benefits that would favorably affect entity's effective tax rates from continuing operations, if recognized	15,000,000	15,100,000
Unrecognized tax benefits that would favorably affect entity's effective tax rates from discontinued operations, if recognized	$ 6,800,000	$ 6,800,000