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Inventories, Net Of Customer Advances (Schedule Of Inventories) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2011 | Dec. 31, 2010
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Inventories, Net Of Customer Advances [Abstract] |  |  |  |
Cost incurred on long-term contracts in progress | $ 866,325 |  | $ 763,791 |
Raw materials | 110,528 |  | 82,236 |
Advances to suppliers and subcontractors | 47,168 |  | 50,839 |
Inventory, gross | 1,024,021 |  | 896,866 |
Cost incurred on contracts in progress deducted from customer advances | 38,048 |  | 55,957 |
Advances received from customers (*) | 150,195 | [1] | 101,231 | [1]
Provision for losses on long-term contracts | 74,509 |  | 74,408 |
Inventory, net | $ 761,269 |  | $ 665,270 |
[1] | The Company has transferred legal title of inventories to certain customers as collateral for advances received. Advances are allocated to the relevant inventories on a per-project basis. In cases where advances are in excess of the inventories, the net amount is presented in customer advances (See Note 14).

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