Goodwill (Details)	3 Months Ended
	Mar. 31, 2016 USD ($) Unit
Goodwill [Roll Forward]
Net goodwill as of December 31, 2014	$ 206,256,665
Foreign exchange impact	(187,490)
Net goodwill as of June 30, 2015	$ 206,069,175
Number of Reportable Segments | Unit	2
North America [Member]
Goodwill [Roll Forward]
Net goodwill as of December 31, 2014	$ 170,734,819
Foreign exchange impact	41,954
Net goodwill as of June 30, 2015	170,776,773
International [Member]
Goodwill [Roll Forward]
Net goodwill as of December 31, 2014	35,521,846
Foreign exchange impact	(229,444)
Net goodwill as of June 30, 2015	$ 35,292,402