Summary of Significant Accounting Principles (Tables)

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Summary of Deferred Revenues

Deferred revenues as of June 30, 2018 and December 31, 2017 consisted of the following:

	June 30,			December 31,
	2018			2017
Service activation fees	$	7,881		$	5,509
Prepaid services		881			2,754
Extended warranty revenues		82			459
		8,844			8,722
Less current portion		(5,010	)		(6,263	)
Long-term portion	$	3,834		$	2,459

Components of Revenue from Contracts with Customers

The following table summarizes the components of revenue from contracts with customers, as well as revenue recognized under ASC 840:

	Quarters Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Revenue from contracts with customers:
Recurring service revenues	$	37,094	$	30,066	$	73,818	$	58,011
Other service revenues		1,381		1,011		2,649		2,578
Total service revenue		38,475		31,077		76,467		60,589
Product revenue		31,169		25,880		58,881		48,289
Total revenue from contracts with customers		69,644		56,957		135,348		108,878
Product revenue recognized under ASC 840		1,144		—		3,413		—
Total revenues	$	70,788	$	56,957	$	138,761	$	108,878