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Contract Revenue and Percentage-of-Completion Method - Narrative (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) claim Project
Revenue from External Customer [Line Items] |  |  |  |
Loss on contracts |  | $ 1.8 | $ 33.9 | $ 6.6
Loss on contracts, number of tank barge projects | Project |  |  |  | 2
Percentage of revenue related to fabricated structures for delivery outside U.S |  | 14.00% | 6.00% | 10.00%
Pass-through costs as a percentage of revenue |  | 36.50% | 44.40% | 48.20%
Number of settled asserted liquidated damages claims | claim |  |  |  | 1
Asserted liquidated damages claims settled |  |  |  | $ 0.3
Large Deepwater Project, Recently Delivered |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Loss on contracts | $ 10.3 |  | $ 24.5 |
Fabrication Facilities |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Loss on contracts | $ 7.6 |  |  |
Loss on contract due to labor rate changes |  |  | $ 9.4 |

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- Definition Losses recognized in the current period on contracts which are expected to generate losses, which are probable and can be reasonably estimated, in a future period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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