Contingent Consideration - Contingent Consideration (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Business Acquisition, Contingent Consideration [Line Items]
Fair Value Measurements Valuation Process Probability Percentage			100.00%
Business Combination, Contingent Consideration, Liability	$ 18,600,000		$ 18,600,000
Fair value of contingent consideration adjustment expense (income)	7,276,000	$ 676,424	9,187,336	$ 989,657
Business combination, contingent consideration, maximum potential cash payment	71,705,744		71,705,744
Eyelevel [Member]
Business Acquisition, Contingent Consideration [Line Items]
Fair value of contingent consideration adjustment expense (income)	7,400,000		8,100,000
Business combination, contingent consideration, maximum potential cash payment	$ 12,000,000		12,000,000
Cumulative EBITDA			$ 30,000,000