XML 28 R11.htm IDEA: XBRL DOCUMENT v3.3.1.900

Property, Plant and Equipment

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment

Property, Plant and Equipment

5.     Property, Plant and Equipment

        Property, plant and equipment, together with the related estimated useful lives, were as follows:

		December 31,			September 30,
		2015			2014			Useful Lives
Land, building and other		$	16,357,000		$	15,472,000		3 to 40 years
Recording equipment			212,541,000			206,517,000		5 to 10 years
Line clearing equipment			1,071,000			1,084,000		5 years
Vibrator energy sources			80,454,000			78,119,000		5 to 15 years
Vehicles			35,196,000			36,730,000		1.5 to 10 years
​	​	​	​	​	​	​	​	​
			345,619,000			337,922,000
Less accumulated depreciation			(198,052,000	)		(173,428,000	)
​	​	​	​	​	​	​	​	​
Net property, plant and equipment		$	147,567,000		$	164,494,000
​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​

X

- References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.13-14)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=51717284&loc=d3e1361-107760

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=51719941&loc=d3e2921-110230

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration