Acquisitions - Summary of Pro Forma Results of Operation (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015
Business Acquisition [Line Items]
Net revenues	$ 44,883	$ 87,213
Net (loss) income attributable to common shareholders	$ (12,217)	$ (15,099)
Earnings per share:
Basic	$ (0.17)	$ (0.21)
Diluted	$ (0.17)	$ (0.21)
Pro Forma [Member]
Business Acquisition [Line Items]
Net revenues	$ 46,401	$ 90,819
Net (loss) income attributable to common shareholders	$ (12,024)	$ (14,444)
Earnings per share:
Basic	$ (0.17)	$ (0.21)
Diluted	$ (0.17)	$ (0.21)
WAM Technologies, LLC [Member]
Business Acquisition [Line Items]
Net revenues	$ 1,518	$ 3,606
Net (loss) income attributable to common shareholders	$ 193	$ 655