Goodwill and Other Intangible Assets - Summary of other intangible assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Carrying amount:
Total carrying amount	$ 104,709	$ 104,913
Accumulated amortization:
Total accumulated amortization	(24,662)	(17,945)
Net amortizable intangible assets	80,047	86,968
Total other intangible assets	137,862	144,783
Licensing agreements
Accumulated amortization:
Other indefinite-lived intangible assets - FCC licenses	57,815	57,815
Television network affiliation relationships
Carrying amount:
Total carrying amount	78,844	78,844
Accumulated amortization:
Total accumulated amortization	(9,691)	(5,755)
Customer lists and advertiser relationships
Carrying amount:
Total carrying amount	22,304	22,304
Accumulated amortization:
Total accumulated amortization	(13,138)	(10,346)
Other
Carrying amount:
Total carrying amount	3,561	3,765
Accumulated amortization:
Total accumulated amortization	$ (1,833)	$ (1,844)