Revenue From Contracts With Customers (Tables)

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table is a summary of net revenues by geographic area (in thousands):

	Three months ended September 30,				Nine months ended September 30,
	2018		2017		2018		2017
Net revenues by geographic area:
Latin America	$	19,910	$	34,561	$	37,356	$	53,318
North America	13,095		9,374		25,452		30,639
Europe	8,202		11,137		19,811		28,201
Asia Pacific	3,718		3,733		11,581		15,318
Africa	1,121		1,187		8,362		2,660
Middle East	717		632		1,907		1,713
Commonwealth of Independent States	437		471		982		7,803
Total	$	47,200	$	61,095	$	105,451	$	139,652

Contract with Customer, Asset and Liability

The following table is a summary of deferred revenues (in thousands):

	September 30, 2018		December 31, 2017
New Venture	$	7,880	$	6,548
Imaging Services	271		676
Devices	1,198		633
Optimization Software & Services	978		1,053
Total	$	10,327	$	8,910

The changes in deferred revenues were as follows (in thousands):

Deferred revenue at December 31, 2017	$	8,910
Cash collected in excess of revenue recognized	21,654
Recognition of deferred revenue (a)	(20,237		)
Deferred revenue at September 30, 2018	$	10,327

^(a)  The majority of deferred revenue recognized relates to Company’s Ventures group.

The following table is a summary of unbilled receivables (in thousands):

	September 30, 2018		December 31, 2017
New Venture	$	20,056	$	33,183
Imaging Services	4,685		4,121
Devices	983		—
Total	$	25,724	$	37,304

The changes in unbilled receivables were as follows (in thousands):

Unbilled Receivables at December 31, 2017	$	37,304
Recognition of unbilled receivables	86,212
Revenues billed to customers	(97,792		)
Unbilled receivables at September 30, 2018	$	25,724