LONG-TERM DEBT: (Details Textual) (USD $)	12 Months Ended				12 Months Ended		1 Months Ended	12 Months Ended	1 Months Ended			3 Months Ended	12 Months Ended					0 Months Ended	1 Months Ended		9 Months Ended		33 Months Ended	12 Months Ended		33 Months Ended		3 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Mar. 31, 2011	Dec. 31, 2012 Pre November 2010 Refinancing Transactions [Member]	Jun. 30, 2005 Pre November 2010 Refinancing Transactions [Member]	Mar. 31, 2010 Prior November2010 Refinancing Transactions [Member]	Dec. 31, 2012 Prior November2010 Refinancing Transactions [Member]	May 31, 2010 Credit Agreement 2011 [Member]	May 31, 2009 Credit Agreement 2011 [Member]	Mar. 31, 2009 Credit Agreement 2011 [Member]	Mar. 31, 2011 Credit Agreement 2011 [Member]	Dec. 31, 2012 Credit Agreement 2011 [Member]	Dec. 31, 2010 Credit Agreement 2011 [Member]	Nov. 30, 2010 Credit Agreement 2011 [Member]	Sep. 30, 2008 Credit Agreement 2011 [Member]	Nov. 30, 2010 Credit Agreement 2011 [Member] Tv One Llc [Member]	Apr. 13, 2012 Credit Agreement 2011 [Member] Term Loan [Member]	Sep. 30, 2011 Credit Agreement 2011 [Member] Term Loan [Member]	Jun. 30, 2011 Credit Agreement 2011 [Member] Term Loan [Member]	Jun. 30, 2009 Credit Agreement 2011 [Member] Term Loan [Member]	Jun. 30, 2008 Credit Agreement 2011 [Member] Term Loan [Member]	Jun. 30, 2012 Credit Agreement 2011 [Member] Term Loan [Member]	Dec. 31, 2010 Credit Agreement 2011 [Member] Term Loan [Member] Libor Floor Rate [Member]	Dec. 31, 2012 Credit Agreement 2011 Amended [Member]	Jun. 30, 2012 Credit Agreement 2011 Amended [Member]	Dec. 24, 2010 Credit Agreement 2011 Amended [Member]	Mar. 31, 2010 Previous Credit Agreement [Member]	Dec. 31, 2012 Previous Credit Agreement [Member]	Dec. 31, 2012 Senior Subordinated Notes [Member]	Dec. 31, 2012 Senior Subordinated Notes [Member] February 2013 [Member]	Dec. 31, 2011 Senior Subordinated Notes [Member] February 2013 [Member]	Dec. 31, 2012 Senior Subordinated Notes [Member] March 2016 [Member]	Dec. 31, 2012 Senior Notes [Member]	Dec. 31, 2011 Senior Notes [Member]	Feb. 25, 2011 Senior Notes [Member]	Dec. 31, 2012 PIK Election [Member]	Dec. 31, 2012 Revolving Credit Facility [Member] Credit Agreement 2011 [Member]	Dec. 31, 2012 Line Of Credit [Member] Credit Agreement 2011 [Member]	Mar. 31, 2011 Line Of Credit [Member] Credit Agreement 2011 [Member]	Nov. 30, 2010 Notes 2011 [Member]	Nov. 30, 2010 Notes 2011 [Member] Credit Agreement 2011 [Member]	Nov. 30, 2009 7% Percentage Promissory Note [Member]	Nov. 30, 2010 Notes 2013 [Member]	Dec. 31, 2012 May 2016 [Member] Senior Subordinated Notes [Member]	Nov. 30, 2010 May 2016 [Member] Senior Subordinated Notes [Member]	Nov. 30, 2010 May 2016 [Member] Minimum [Member] Senior Subordinated Notes [Member]	Nov. 30, 2010 May 2016 [Member] Maximum [Member] Senior Subordinated Notes [Member]	Dec. 31, 2012 July 2011 [Member] Senior Subordinated Notes [Member]
Term Loan Facility Carrying Amount				$ 386,000,000											$ 323,000,000	$ 174,400,000			$ 323,000,000										$ 300,000,000
Revolving Loan Facility Carrying Amount				25,000,000											20,000,000		13,700,000												500,000,000													5,100,000
Debt Instrument, Face Amount																																				119,000,000	14,200,000			411,000,000	101,500,000			200,000,000		286,800,000
Debt Instrument, Description of Variable Rate Basis													Under the terms of the 2011 Credit Agreement, interest on base rate loans is payable quarterly and interest on LIBOR loans is payable monthly or quarterly. The base rate is equal to the greater of: (i) the prime rate; (ii) the Federal Funds Effective Rate plus 0.50%; or (iii) the LIBOR Rate for a one-month period plus 1.00%. The applicable margin on the 2011 Credit Agreement is between (i) 4.50% and 5.50% on the revolving portion of the facility and (ii) 5.00% (with a base rate floor of 2.5% per annum) and 6.00% (with a LIBOR floor of 1.5% per annum) on the term portion of the facility.	Under the terms of the Amended and Restated Credit Agreement, interest on both alternate base rate loans and LIBOR loans was payable monthly. The LIBOR interest rate floor was 1.00% and the alternate base rate was equal to the greater of the prime rate, the Federal Funds Effective Rate plus 0.50% and the LIBOR Rate for a one-month period plus 1.00%. Interest payable on (i) LIBOR loans were at LIBOR plus 6.25% and (ii) alternate base rate loans was at an alternate base rate plus 5.25% (and, in each case, could have been permanently increased if the Company exceeded certain senior leverage ratio levels, tested quarterly beginning June 30, 2011). The interest rate paid in excess of LIBOR could have been as high as 7.25% during the last quarter prior to maturity if the Company exceeded the senior leverage ratio levels on each test date.
Debt Instrument, Basis Spread on Variable Rate																								1.00%
Debt Instrument, Interest Rate During Period	7.50%
Debt Instrument, Periodic Payment, Principal																			807,500	960,000
Line of Credit Facility, Current Borrowing Capacity																																						24,000,000
Line of Credit Facility, Remaining Borrowing Capacity																																						21,500,000
Line of Credit Facility, Amount Outstanding						437,500,000																																	377,300,000
Credit Agreement Expiration Terms																													Prior to the November 2010 Refinancing Transaction, the Previous Credit Agreement was to expire the earlier of (a) six months prior to the scheduled maturity date of the 87/8% Senior Subordinated Notes due July 1, 2011 (January 1, 2011) (unless the 87/8% Senior Subordinated Notes have been repurchased or refinanced prior to such date) or (b) June 30, 2012.
Repayments of Long-term Lines of Credit												353,700,000	3,800,000
Line of Credit Facility, Maximum Borrowing Capacity																													800,000,000
Repayments of Other Long-term Debt																		2,000,000
Long-term Debt, Gross	824,078,000	815,652,000											680,300,000																	327,781,000	747,000	747,000		119,000,000	119,000,000						97,000,000			199,300,000	327,000,000
Debt Instrument, Maturity Date																														May 24, 2016				Mar. 15, 2016
Debt Instrument, Periodic Payment, Interest																																24,000
Debt Instrument, Interest Rate, Stated Percentage							1.00%																					1.00%		10.00%						10.00%							7.00%						1.00%
Covenant Compliance Description For Maintaining Interest Coverage Ratio					As of each of June 30, 2010, July 1, 2010 and September 30, 2010, we were not in compliance with the terms of the Previous Credit Agreement. More specifically: (i) as of June 30, 2010, we failed to maintain a total leverage ratio of 7.25 to 1.00; (ii) as of each of July 1, 2010 and September 30, 2010, as a result of a step down of the total leverage ratio from no greater than 7.25 to 1.00 to no greater than 6.50 to 1.00 effective for the period July 1, 2010 to September 30, 2011, we also failed to maintain the requisite total leverage ratio; and (iii) as of September 30, 2010, we failed to maintain a senior leverage ratio of 4.00 to 1.00.			As of each of June 30, 2010, July 1, 2010 and September 30, 2010, we were not in compliance with the terms of our Previous Credit Agreement. More specifically: (i) as of June 30, 2010, we failed to maintain a total leverage ratio of 7.25 to 1.00; (ii) as of each of July 1, 2010 and September 30, 2010, as a result of a step down of the total leverage ratio from no greater than 7.25 to 1.00 to no greater than 6.50 to 1.00 effective for the period July 1, 2010 to September 30, 2011, we also failed to maintain the requisite total leverage ratio; and (iii) as of September 30, 2010, we failed to maintain a senior leverage ratio of 4.00 to 1.00.																	(a) maintaining an interest coverage ratio of no less than: 1.10 to 1.00 on December 31, 2012 and the last day of each fiscal quarter through December 31, 2013; 1.20 to 1.00 on March 31, 2014 and the last day of each fiscal quarter through September 30, 2014; 1.25 to 1.00 on December 31, 2014 and the last day of each fiscal quarter through September 30, 2015; and 1.50 to 1.00 on December 31, 2015 and the last day of each fiscal quarter thereafter.
Debt Instrument Periodic Payment Percentage Of Principal																			0.25%	0.25%
Debt Instrument Periodic Payment Percentage Of Principal During Period																					5.00%	1.25%	6.25%
Prepayment Of Term Loan									5,000,000	31,500,000	70,000,000
Quarterly Payments Of Term Loans																										4,000,000
Debt Instrument, Repurchase Amount																											4,500,000				199,300,000																		101,500,000
Percentage Of Financial Instrument																															6.375%																12.50%	15.00%	8.875%
Percentage Of Cash Paid For Interest																																	6.00%
Percentage Of Paid In Kind Interest Paid																																	9.00%
Covenant Compliance Description For Maintaining Senior Secured Leverage Ratio																									(b) maintaining a senior secured leverage ratio of no greater than: 4.50 to 1.00 on September 30, 2012 and the last day of each fiscal quarter through December 31, 2013; 4.25 to 1.00 on March 31, 2014 and the last day of each fiscal quarter through June 30, 2014; 4.00 to 1.00 on September 30, 2014; 3.75 to 1.00 on December 31, 2014; 3.25 to 1.00 on March 31, 2015 and the last day of each fiscal quarter through September 30, 2015; 2.75 to 1.00 on December 31, 2015 and the last day of each fiscal quarter thereafter.
Covenant Compliance Description For Maintaining Total Leverage Ratio																									(c) maintaining a total leverage ratio of no greater than: 8.50 to 1.00 on December 31, 2012 and the last day of each fiscal quarter through December 31, 2013; 8.25 to 1.00 on March 31, 2014 and June 30, 2014; 8.00 to 1.00 on September 30, 2014; 7.50 to 1.00 on December 31, 2014; 6.50 to 1.00 on March 31, 2015 and the last day of each fiscal quarter through September 30, 2015; 6.00 to 1.00 on December 31, 2015 and the last day of each fiscal quarter thereafter.
Covenant Limitations Description																									(d) limitations on: liens; sale of assets; payment of dividends; and mergers.
Notes Payable																																											1,000,000
Revolving Loan Facility Reduction In Amount							100,000,000																					100,000,000
Revolving Loan Facility Previous Amount																												500,000,000
Revolving Loan Facility After Reduction In Amount																												400,000,000
Extinguishment of Debt, Gain (Loss), Net of Tax																														6,600,000
Write off of debt financing costs	$ 0	$ 0	$ 3,055,000																											$ 3,300,000
Debt Instrument Discount Rate																															5.00%