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Fabrication Contracts (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010
Costs, estimated earnings and billings on uncompleted contracts |  |
Costs incurred on uncompleted contracts | $ 895,337 | $ 1,318,971
Estimated earnings | 157,893 | 277,768
Total cost incurred and estimated earnings on uncompleted contracts | 1,053,230 | 1,596,739
Less - billings to date | (1,014,977) | (1,579,448)
Total | $ 38,253 | $ 17,291

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