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Fabrication Contracts (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012
Costs, estimated earnings and billings on uncompleted contracts |  |
Costs incurred on uncompleted contracts | $ 713,889 | $ 1,133,835
Estimated earnings | 109,494 | 195,742
Total cost incurred and estimated earnings on uncompleted contracts | 823,383 | 1,329,577
Less - billings to date | (794,133) | (1,334,730)
Total cost and estimated earnings versus billings | $ 29,250 | $ (5,153)

X
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- Details
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