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Property and Equipment

12 Months Ended

Dec. 31, 2020

Property and Equipment

Property and Equipment

4.           Property and Equipment

Property and equipment (in thousands), together with the related estimated useful lives at December 31, 2020 and 2019, were as follows:

​	​	​	​	​	​	​	​	​	​
​	​	December 31,					​	​
​		2020			2019		​	Useful Lives
Land, building and other	​	$	16,070	​	$	16,612	​		3 to 40 years
Recording equipment	​		158,619	​		163,564	​		5 to 10 years
Vibrator energy sources	​		73,852	​		78,626	​		5 to 15 years
Vehicles	​		22,939	​		25,845	​		1.5 to 10 years
​	​		271,480	​		284,647	​	​	​
Less accumulated depreciation	​		(232,580)	​		(231,098)	​	​	​
Property and equipment, net	​	$	38,900	​	$	53,549	​	​	​

​

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- References

No definition available.

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- Definition

The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 958
-SubTopic 360
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-URI http://asc.fasb.org/topic&trid=2155823

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 958
-SubTopic 360
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 958
-SubTopic 360
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916

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