Goodwill and Intangible Assets (Details 2) (USD $)	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2011	Sep. 30, 2013 Broadcast licenses	Dec. 31, 2012 Broadcast licenses	Dec. 31, 2011 Broadcast licenses	Sep. 30, 2013 Other Intangibles	Dec. 31, 2012 Other Intangibles	Dec. 31, 2011 Other Intangibles
Changes in the goodwill
Net balance at the beginning of the period	$ 10,982,586	$ 10,982,586
Additions	105,499,182
Net balance at the end of the period	116,481,768	10,982,586
Changes in the other indefinite lived intangible assets
Net balance at the beginning of the period			41,355,700	41,355,700	41,355,700	700,000	700,000	700,000
Net balance at the end of the period			41,355,700	41,355,700	41,355,700	700,000	700,000	700,000
Changes in the goodwill and other indefinite lived intangible assets, on a net basis
Net balance at the beginning of the period	53,038,286	53,038,286
Additions	105,499,182
Net balance at the end of the period	$ 158,537,468	$ 53,038,286