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Fair Value and Estimated Useful Lives of Intangibles, Triumph (Detail) (Customer-Related Intangible Assets, USD $) In Thousands, unless otherwise specified	9 Months Ended		1 Months Ended
	Sep. 30, 2013 Minimum	Sep. 30, 2013 Maximum	Aug. 17, 2012 Triumph Engineering Corporation and Triumph On-Demand Inc	Aug. 17, 2012 Triumph Engineering Corporation and Triumph On-Demand Inc Minimum	Aug. 17, 2012 Triumph Engineering Corporation and Triumph On-Demand Inc Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets value			$ 382
Intangible assets estimated useful lives	1 year	14 years		1 year	10 years

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

+ References

No definition available.

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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