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Statement of Cash Flow Information (Tables)
12 Months Ended
Dec. 31, 2014
Supplemental Cash Flow Elements [Abstract]  
Schedule of Noncash or Part Noncash Acquisitions
The Company had non-cash additions to its seismic data library comprised of the following (in thousands): 
 
Year Ended December 31,
 
2014
 
2013
 
2012
Non-monetary exchanges related to resale licensing revenue
$
741

 
$
1,656

 
$
1,554

Non-monetary exchanges from underwriting of new data acquisition
209

 

 
4,122

Completion of data in progress from prior non-monetary exchanges

 
2,429

 
142

Less: Non-monetary exchanges for data in progress

 

 
(2,442
)
Total non-cash additions to seismic data library
$
950

 
$
4,085

 
$
3,376


Schedule of Non-Cash Revenue

Non-cash revenue consisted of the following (in thousands):
 
Year Ended December 31,
 
2014
 
2013
 
2012
Acquisition revenue on underwriting from non-monetary exchange contracts
$
38

 
$
87

 
$
5,451

Licensing revenue from specific data licenses and selections on non-monetary exchange contracts
1,033

 
2,399

 
3,047

Solutions revenue recognized from non-monetary exchange contracts

 

 
20

Total non-cash revenue
$
1,071

 
$
2,486

 
$
8,518