Goodwill (Details)	6 Months Ended
	Jun. 30, 2017 USD ($)
Goodwill [Roll Forward]
Net goodwill as of December 31, 2016	$ 202,700,000
Foreign exchange impact	2,699,352
Net goodwill as of June 30, 2017	205,399,000
North America [Member]
Goodwill [Roll Forward]
Net goodwill as of December 31, 2016	170,755,258
Foreign exchange impact	23,755
Net goodwill as of June 30, 2017	170,779,013
International [Member]
Goodwill [Roll Forward]
Net goodwill as of December 31, 2016	31,944,314
Foreign exchange impact	2,675,597
Net goodwill as of June 30, 2017	$ 34,619,911