COMMITMENTS AND CONTINGENCIES: (Details) (USD $)	3 Months Ended			1 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Sep. 30, 2013 Pending acquisition agreement New Age Media Scenario forecast market station	Jul. 31, 2013 Pending acquisition agreement Perpetual Corporation and Charleston Television, LLC Scenario forecast affiliate
COMMITMENTS AND CONTINGENCIES
Percentage of sale as per joint sales agreements to become owner of station	15.00%
Period to amend or terminate current ownership of station to fall in new rule, as per FCC, for ownership of station	2 years
Revenue earned from JSAs arrangements, which are eliminated in consolidation	$ 11,000,000	$ 6,900,000
Number of affiliates					7
Other assets	205,614,000		208,209,000
Amortization of definite-lived intangible assets and other assets	24,728,000	16,002,000
Purchase price				$ 90,000,000	$ 985,000,000
Number of television stations owned				8
Number of markets				3