The Company and Significant Accounting Policies (Details Textual) (USD $)	1 Months Ended		3 Months Ended		9 Months Ended			9 Months Ended		9 Months Ended			1 Months Ended	9 Months Ended		9 Months Ended				3 Months Ended		9 Months Ended
	May 31, 2012	Dec. 31, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	May 30, 2012	Sep. 30, 2012 2010 Credit Facility [Member]	Jul. 27, 2010 2010 Credit Facility [Member]	Sep. 30, 2012 Restricted Stock [Member]	Sep. 30, 2012 Letter of Credit [Member] 2010 Credit Facility [Member]	Jul. 27, 2010 Letter of Credit [Member] 2010 Credit Facility [Member]	Jul. 31, 2010 8.75% Senior Secured First Lien Notes [Member]	Sep. 30, 2012 8.75% Senior Secured First Lien Notes [Member]	Jul. 27, 2010 8.75% Senior Secured First Lien Notes [Member]	Sep. 30, 2012 Minimum [Member]	Sep. 30, 2012 Minimum [Member] Restricted Stock [Member]	Sep. 30, 2012 Maximum [Member]	Sep. 30, 2012 Maximum [Member] Restricted Stock [Member]	Sep. 30, 2012 Univision [Member]	Sep. 30, 2011 Univision [Member]	Sep. 30, 2012 Univision [Member]	Sep. 30, 2011 Univision [Member]
Related Party Transaction [Line Items]
Expiry year of long-term affiliation agreements																						2021
Renewal period of affiliation agreements																						2 years
Payment of sales representation fees to television stations																				$ 2,800,000	$ 2,400,000	$ 7,500,000	$ 5,900,000
Period to grant television station for terms of retransmission consent agreements																						6 years
Amount due from television stations for carriage																				6,100,000		6,100,000
Company's common stock owned by related party on fully-converted basis																				10.00%		10.00%
Amortization period of stock based compensation expense																1 year	1 year	4 years	4 years
Unrecognized compensation expense related to grants of restricted stock units										700,000
Weighted-average period for unrecognized compensation expense					1 year 7 months 6 days					1 year
Aggregate principal amount of Senior Secured First Lien Notes															400,000,000
Interest rate of notes															8.75%
Issuance price as percentage of principal amount															98.722%
Maturity date of notes														Aug. 01, 2017
Net proceeds received from the sale of the Notes													388,000,000
Discount on bond														5,000,000
Fees for sale of notes														7,000,000
Amount of revolving credit facility									50,000,000			3,000,000
Period of revolving credit facility					3 years
Maturity date of revolving credit facility								Jul. 27, 2013
Outstanding letters of credit											700,000
Company's total leverage ratio																6.50%		1.00%
Maximum principal outstanding amount of loans					25,000,000
Interest rate on borrowings under 2010 Credit Facility								Base Rate (as defined in the amended Credit Agreement) plus a margin of 3.375% per annum; or (ii) LIBOR plus a margin of 4.375% per annum
Increase in aggregate principal amount 2010 Credit Facility								50,000,000
Variable interest rate spread in addition to LIBOR under condition Two								4.375%
Variable interest rate spread to under condition one								3.375%
The Company and Significant Accounting Policies (Textual) [Abstract]
Stock-based compensation expense related to grants of stock options and restricted stock units			800,000	500,000	1,763,000	1,359,000
Unrecognized compensation expense related to grants of stock options			2,000,000		2,000,000
Weighted average period for unrecognized compensation expense related to grants of stock options					1 year 7 months 6 days					1 year
Weighted average shares outstanding of diluted securities, not included for diluted income per share			9,104,987	399,397	8,666,586	600,671
Maximum percentage of original principal amount to be redeem					10.00%
Repurchased notes, principal amount		16,200,000					20,000,000
Loss on debt extinguishment	1,200,000	400,000
Percentage of redemption price					103.00%
Maximum principal outstanding amount of loans					25,000,000
Maximum percentage of original principal amount with net proceeds from equity offering to be redeemed					35.00%
Percentage of redemption price to be redeemed of principal amount plus accrued unpaid interest					108.75%
Minimum percentage of indenture remains outstanding					65.00%
Number of days before the date of closing of equity offering for occurrence of redemption					60 days
Percentage of redemption price to be redeemed of principal amount plus premium					100.00%
Percentage of redemption price to be redeemed of principal amount at August 1, 2013					106.563%
Percentage of redemption price to be redeemed of principal amount at August 1, 2014					104.375%
Percentage of redemption price to be redeemed of principal amount at August 1, 2015					102.188%
Percentage of redemption price to be redeemed of principal amount at August 1, 2016					100.00%
Purchase price as a percentage of the aggregate principal amount of the Notes repurchased, plus accrued and unpaid interest					101.00%
Percentage of the aggregate principal amount of the outstanding Notes represented by the Trustee or holders					25.00%
Carrying amount of notes			360,300,000		360,300,000
Fair value of notes			393,800,000		393,800,000
Increase in interest expense related to amortization of bond discount			$ 100,000	$ 100,000	$ 400,000	$ 400,000