Business Segments - Schedule of Business Segments Adjusted EBITDA (Details) - USD ($)	3 Months Ended										6 Months Ended			9 Months Ended		12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting [Abstract]
Adjusted EBITDA	$ 14,792,862				$ 13,411,966						$ 26,487,692	$ 21,624,000
Depreciation and amortization	(4,720,620)				(4,266,290)						(9,316,355)	(8,357,228)
Stock-based compensation expense	(1,117,067)				(1,566,966)	$ (400,000)					(2,357,590)	(3,627,704)
Change in fair value of contingent consideration	(7,276,414)				(676,424)						(9,187,336)	(989,657)
Restructuring and other charges	(622,944)				0						(3,967,067)	0
Income from operations	1,056,000	$ 603,000	$ (31,379,000)	$ 9,638,000	6,903,000	1,745,000	$ 37,573,000	$ 6,803,000	$ 5,531,000	$ 802,000	1,659,000	8,649,000	$ 6,333,000	$ 18,287,000	$ 13,136,000	$ (13,093,000)	$ 50,709,000	$ (6,137,000)
Total other expense	(670,000)				(1,065,000)						(1,894,000)	(2,106,000)
Income before income taxes	$ 386,000	$ (621,000)	$ (34,738,000)	$ 7,423,000	$ 5,838,000	$ 705,000	$ 35,810,000	$ 5,622,000	$ 4,474,000	$ (314,000)	$ (235,000)	$ 6,543,000	$ 4,160,000	$ 13,968,000	$ 9,781,000	$ (20,771,000)	$ 45,591,000	$ (9,372,000)