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PROPERTY, PLANT AND EQUIPMENT AND LEASED FACILITIES AND EQUIPMENT - Additional Information (Details) ft² in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($) ft² a renewal_options | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Property, Plant and Equipment [Line Items] |  |  |
Depreciation and amortization | $ | $ 10,430 | $ 12,909 | $ 25,448
Lease agreement expenses | $ | $ 1,900 | $ 2,000 | $ 2,500
Houston, Texas |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Office space area of leased premises (in sqft or acres) | ft² | 17 |  |
Jennings, Louisiana |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Office space area of leased premises (in sqft or acres) | a | 180 |  |
Lake Charles, Louisiana |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Office space area of leased premises (in sqft or acres) | a | 10 |  |
Prospect Shipyard | Jennings, Louisiana |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Lease renewal options | renewal_options | 2 |  |
Lease renewal term | 10 years |  |
Prospect Shipyard | Lake Charles, Louisiana |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Lease renewal options | renewal_options | 3 |  |
Lease renewal term | 5 years |  |

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- Definition Lessee, Operating Lease, Number Of Renewals + References No definition available. + Details
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- Definition Office Space Area + References No definition available. + Details
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- Definition The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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