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Discontinued Operations - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2015
Discontinued Operations And Disposal Groups [Abstract]
Operating assets sales agreement effective date	Aug. 14, 2014
Minimum lease period with option to purchase	1 year

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- Definition

Minimum lease period with option to purchase.

+ References

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- Definition

Operating assets sales agreement effective date.

+ References

No definition available.

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Namespace Prefix:	aeti_
Data Type:	xbrli:dateItemType
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- References

No definition available.

+ Details

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