Goodwill and Intangible Assets (Details 3) (USD $)	3 Months Ended		9 Months Ended				9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Affiliate relationships	Dec. 31, 2012 Affiliate relationships	Sep. 30, 2013 Affiliate relationships Maximum	Sep. 30, 2013 Affiliate relationships Minimum	Sep. 30, 2013 Affiliate relationships Weighted average
Amortizable intangible assets
Amortization period							10 years	6 years
Remaining amortization period									2 years 10 months 24 days
Net amounts related to other amortizable intangible assets	$ 35,546,667		$ 35,546,667		$ 35,546,667	$ 977,500
Aggregate amortization expense of amortizable intangible assets	1,636,667	57,500	3,330,833	172,500
Future estimated amortization expense
Remainder of 2013	1,636,667		1,636,667
2014	6,546,667		6,546,667
2015	6,546,667		6,546,667
2016	6,546,667		6,546,667
2017	6,374,167		6,374,167
2018	6,316,667		6,316,667
2019	1,579,165		1,579,165
Total	$ 35,546,667		$ 35,546,667		$ 35,546,667	$ 977,500