Goodwill and Intangible Assets (Details 3) (USD $)	3 Months Ended		6 Months Ended				6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 Affiliate relationships	Dec. 31, 2012 Affiliate relationships	Jun. 30, 2013 Affiliate relationships Maximum	Jun. 30, 2013 Affiliate relationships Minimum	Jun. 30, 2013 Affiliate relationships Weighted average
Amortizable intangible assets
Amortization period							10 years	7 years
Remaining amortization period									3 years 4 months 24 days
Net amounts related to other amortizable intangible assets	$ 23,716,071		$ 23,716,071		$ 23,716,071	$ 977,500
Aggregate amortization expense of amortizable intangible assets	903,929	57,500	961,429	115,000
Future estimated amortization expense
Remainder of 2013	1,807,857		1,807,857
2014	3,615,714		3,615,714
2015	3,615,714		3,615,714
2016	3,615,714		3,615,714
2017	3,443,214		3,443,214
2018	3,385,714		3,385,714
2019	3,385,714		3,385,714
2020	846,429		846,429
Total	$ 23,716,071		$ 23,716,071		$ 23,716,071	$ 977,500