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Assets Held for Sale - Narrative (Details) $ in Thousands | 3 Months Ended
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Jun. 30, 2017 USD ($) a
Disposal Group, Held-for-sale, Not Discontinued Operations |
Long Lived Assets Held-for-sale [Line Items] |
Property, plant and equipment held for sale | $ 107,262
South Texas Fabrication Yards | Disposal Group, Held-for-sale, Not Discontinued Operations |
Long Lived Assets Held-for-sale [Line Items] |
Property, plant and equipment held for sale | 104,759
Prospect Shipyard |
Long Lived Assets Held-for-sale [Line Items] |
Loss on sale of assets | 259
Prospect Shipyard | Disposal Group, Held-for-sale, Not Discontinued Operations |
Long Lived Assets Held-for-sale [Line Items] |
Property, plant and equipment held for sale | $ 2,503
Area of leased facility (in acres) | a | 35
Impairment of assets held for sale | $ 389
Prospect Shipyard | Disposal Group, Disposed of by Sale, Not Discontinued Operations |
Long Lived Assets Held-for-sale [Line Items] |
Proceeds from sale of assets | $ 2,000

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- Definition Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation. + References No definition available. + Details
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- Definition Amount classified as property, plant and equipment attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2473-110228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=84176398&loc=d3e2941-110230 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721533-107759 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=65878427&loc=d3e1107-107759 + Details
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