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Property and Equipment

12 Months Ended

Dec. 31, 2017

Property and Equipment

Property and Equipment

5.           Property and Equipment

Property and equipment (in thousands), together with the related estimated useful lives at December 31, 2017 and 2016, were as follows:

		December 31,
		2017			2016			Useful Lives
Land, building and other		$	16,610		$	15,777			3 to 40 years
Recording equipment			183,841			199,068			5 to 10 years
Line clearing equipment			11			1,071			5 years
Vibrator energy sources			79,694			79,162			5 to 15 years
Vehicles			27,688			29,872			1.5 to 10 years
			307,844			324,950
Less accumulated depreciation			(221,271)			(214,033)
Property and equipment, net		$	86,573		$	110,917

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- References

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- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-URI http://asc.fasb.org/topic&trid=2155823

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