Acquisitions (Details) (LIN Television Corporation, USD $) In Millions, unless otherwise specified	6 Months Ended			1 Months Ended		1 Months Ended
	Jun. 30, 2012 Senior unsecured bridge loan facility	Jun. 30, 2012 Asset purchase agreement	Jun. 30, 2012 New Vision and Vaughan Asset purchase agreement	May 31, 2012 New Vision Asset purchase agreement network market	May 04, 2012 New Vision Asset purchase agreement	May 31, 2012 Vaughan Asset purchase agreement network market	May 04, 2012 Vaughan Asset purchase agreement
Acquisitions
Number of network-affiliated television stations				13		5
Number of markets covered by network-affiliated television stations				8		3
Purchase price			$ 335.0		$ 330.4		$ 4.6
Assumption of finance lease obligations					12.2
Amount deposited into an escrow account		33.5
Commitment fee charged to expense if loan is not utilized		4.0
Maximum borrowing capacity	265
Commitment fee capitalized if loan is utilized	$ 4