Acquisitions - Pro Forma Disclosures (Details) (Detroit MyNetworkTV affiliate and Buffalo ABC affiliate, USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Detroit MyNetworkTV affiliate and Buffalo ABC affiliate
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business Acquisition, Pro Forma Revenue	$ 197,460	$ 637,579	$ 619,521
Business Acquisition, Pro Forma Net Income (Loss)	$ (7,974)	$ (3,655)	$ (5,129)
Business Acquisition, Pro Forma Earnings Per Share, Basic	$ (0.14)	$ (0.07)	$ (0.09)
Business Acquisition, Pro Forma Earnings Per Share, Diluted	$ (0.14)	$ (0.07)	$ (0.09)

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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