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Variable Interest Entity (Details) (USD $) In Thousands, unless otherwise specified			9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 European Air-Crane, S.p.A.	Sep. 30, 2012 European Air-Crane, S.p.A. Inaer formerly Elilario Italia S.p.A	Sep. 30, 2012 European Air-Crane, S.p.A. FCN
Variable Interest Entity
Variable interest entity, ownership interest percentage			49.00%
Ownership interest percentage by noncontrolling owners				49.00%	2.00%
Noncontrolling interest	$ 892	$ 878

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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