Goodwill and Intangible Assets, Net - Goodwill (Details) - USD ($) $ in Thousands			12 Months Ended
		Aug. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Schedule of Goodwill
Goodwill beginning balance			$ 43,116	$ 30,739
Goodwill acquired during the period	[1]			12,564
Foreign exchange effects			(64)	(187)
Goodwill closing balance			$ 43,052	$ 43,116
Ecolink Intelligent Technology, Inc.
Schedule of Goodwill
Goodwill acquired during the period		$ 12,564

[1] During 2015, we recognized $12.6 million of goodwill related to the Ecolink Intelligent Technology, Inc. acquisition. Please refer to Note 22 for further information about this acquisition.