XML 47 R31.htm IDEA: XBRL DOCUMENT v3.10.0.1
Summary of Significant Accouting Policies (Tables)
 12 Months Ended
Dec. 31, 2018
Accounting Policies [Abstract]  
Summary of Property, Plant, Equipment and Seismic Rental Equipment
Property, plant, equipment and seismic rental equipment are stated at cost. Depreciation expense is provided straight-line over the following estimated useful lives:
 
Years
Machinery and equipment
3-7
Buildings
5-25
Seismic rental equipment
3-5
Leased equipment and other
3-10
A summary of property, plant, equipment and seismic rental equipment follows (in thousands):
 
December 31,
 
2018
 
2017
Buildings
$
15,707

 
$
15,822

Machinery and equipment
132,135

 
145,654

Seismic rental equipment
1,423

 
1,677

Furniture and fixtures
3,859

 
3,869

Other
30,104

 
28,965

Total
183,228

 
195,987

Less accumulated depreciation
(133,634
)
 
(143,834
)
Less impairment of long-lived assets
(36,553
)
 
—

Property, plant, equipment and seismic rental equipment, net
$
13,041

 
$
52,153
Schedule of Multi-Client Data Library
At December 31, 2018 and 2017, multi-client data library costs and accumulated amortization consisted of the following (in thousands):
 
December 31,
 
2018
 
2017
Gross costs of multi-client data creation
$
972,309

 
$
939,077

Less accumulated amortization
(776,860
)
 
(727,872
)
Less impairments to multi-client data library
(121,905
)
 
(121,905
)
Multi-client data library, net
$
73,544

 
$
89,300