Statement of Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2018

Supplemental Cash Flow Elements [Abstract]

Schedule of Noncash Additions to Seismic Data Library

The Company had non-cash additions to its seismic data library comprised of the following (in thousands):

	Three Months Ended March 31,
	2018		2017
Non-monetary exchanges related to resale licensing	$	—	$	250

Schedule of Non-Cash Revenue

Non-cash revenue consisted of the following (in thousands):

	Three Months Ended March 31,
	2018		2017
Acquisition revenue on underwriting from non-monetary exchange contracts	$	—	$	39
Licensing revenue from specific data licenses and selections on non-monetary exchange contracts	—		250
Solutions and other revenue recognized from non-monetary exchange contracts	5		—
Total non-cash revenue	$	5	$	289