The Company and Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended			9 Months Ended			0 Months Ended	1 Months Ended	9 Months Ended		3 Months Ended		9 Months Ended							3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2011	Sep. 30, 2014	Sep. 30, 2013	Aug. 18, 2014	Jul. 27, 2010 8.75% Senior Secured First Lien Notes	Jul. 31, 2010 8.75% Senior Secured First Lien Notes	Sep. 30, 2014 8.75% Senior Secured First Lien Notes	Dec. 31, 2013 8.75% Senior Secured First Lien Notes	Dec. 31, 2012 Notes Payable to Banks	Jun. 30, 2012 Notes Payable to Banks	Sep. 30, 2014 Class A common stock	Sep. 30, 2014 Stock Option	Sep. 30, 2014 Stock Option Minimum	Sep. 30, 2014 Stock Option Maximum	Sep. 30, 2014 Restricted Stock	Sep. 30, 2014 Restricted Stock Minimum	Sep. 30, 2014 Restricted Stock Maximum	Sep. 30, 2014 Univision	Sep. 30, 2013 Univision	Sep. 30, 2014 Univision	Sep. 30, 2013 Univision	Sep. 30, 2014 Unimas
Accounting Policies [Line Items]
Expiry year of long-term affiliation agreements																						2021
Renewal period of affiliation agreements																						2 years
Affiliate advertising minutes per hour for which entity has right to sell																						6 minutes		4 minutes 30 seconds
Payment of sales representation fees to television stations																				$ 2,600,000	$ 2,600,000	$ 7,800,000	$ 7,600,000
Period to grant television station for terms of retransmission consent agreements																						6 years
Retransmission consent agreements expiring date																						Dec. 31, 2014
Amount due from television stations for carriage																				10,800,000		10,800,000
Common stock percentage held by Univision																				10.00%		10.00%
Stock-based compensation expense related to grants of stock options and restricted stock units	900,000	1,300,000		2,192,000	3,518,000
Amortization period of stock-based compensation expense															1 year	4 years		1 year	4 years
Unrecognized compensation expense related to grants of stock options														2,400,000
Weighted-average period for unrecognized compensation expense														1 year 8 months 12 days			1 year 7 months 6 days
Unrecognized compensation expense related to grants of restricted stock units																	4,400,000
Weighted average shares outstanding of diluted securities, not included for diluted income per share	1,274,750	2,451,894		1,336,750	1,736,783
Amount approved under share purchase program						10,000,000
Number of shares repurchased													800,000
Average price of repurchased shares													$ 4.51
Aggregate purchase price of repurchased shares													3,500,000
Interest rate of notes										8.75%
Aggregate principal amount of Senior Secured First Lien Notes							400,000,000
Issuance price as percentage of principal amount							98.722%
Notes maturity date									Aug. 01, 2017
Net proceeds received from the sale of the Notes					375,000,000			388,000,000
Discount on bond									5,000,000
Fees for sale of notes									7,000,000
Principal amount repurchased			16,200,000								40,000,000	20,000,000
Gain (loss) on debt extinguishment		$ (29,404,000)	$ 400,000		$ (29,534,000)						$ 2,500,000	$ 1,200,000
Redemption price percentage of the principal amount for redeemed notes											103.00%	103.00%