Fair Value Measurement - Schedule of Unobservable Fair Value Inputs (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance as of December 31, 2015			$ (22,161,822)
Change in fair value of contingent consideration	$ 788,000	$ 701,000	9,975,423	$ 1,690,743
Foreign exchange impact(2)			(1,278,664)
Balance as of September 30, 2016	(19,319,874)		(19,319,874)
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance as of December 31, 2015			(22,161,822)
Contingent consideration payments paid in cash			11,008,413
Change in fair value of contingent consideration			1,280,801
Reclassification to Due to seller			350,000
Foreign exchange impact(2)			178,157
Balance as of September 30, 2016	$ (19,319,874)		$ (19,319,874)