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Assets Held for Sale - Significant Assets Included in Assets Held for Sale (Details) - Disposal Group, Held-for-sale, Not Discontinued Operations $ in Thousands | Sep. 30, 2018 USD ($)
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Long Lived Assets Held-for-sale [Line Items] |
Less: accumulated depreciation | $ (35,271)
Total assets held for sale | 42,670
Assets Under Agreement For Sale |
Long Lived Assets Held-for-sale [Line Items] |
Less: accumulated depreciation | (24,176)
Total assets held for sale | 23,635
Remaining Assets |
Long Lived Assets Held-for-sale [Line Items] |
Less: accumulated depreciation | (10,797)
Total assets held for sale | 17,146
Shipyard Division Assets |
Long Lived Assets Held-for-sale [Line Items] |
Less: accumulated depreciation | (298)
Total assets held for sale | 1,889
Land |
Long Lived Assets Held-for-sale [Line Items] |
Total assets held for sale, gross | 2,157
Land | Assets Under Agreement For Sale |
Long Lived Assets Held-for-sale [Line Items] |
Total assets held for sale, gross | 2,157
Land | Remaining Assets |
Long Lived Assets Held-for-sale [Line Items] |
Total assets held for sale, gross | 0
Land | Shipyard Division Assets |
Long Lived Assets Held-for-sale [Line Items] |
Total assets held for sale, gross | 0
Buildings and improvements |
Long Lived Assets Held-for-sale [Line Items] |
Total assets held for sale, gross | 31,987
Buildings and improvements | Assets Under Agreement For Sale |
Long Lived Assets Held-for-sale [Line Items] |
Total assets held for sale, gross | 31,798
Buildings and improvements | Remaining Assets |
Long Lived Assets Held-for-sale [Line Items] |
Total assets held for sale, gross | 189
Buildings and improvements | Shipyard Division Assets |
Long Lived Assets Held-for-sale [Line Items] |
Total assets held for sale, gross | 0
Machinery and equipment |
Long Lived Assets Held-for-sale [Line Items] |
Total assets held for sale, gross | 43,797
Machinery and equipment | Assets Under Agreement For Sale |
Long Lived Assets Held-for-sale [Line Items] |
Total assets held for sale, gross | 13,856
Machinery and equipment | Remaining Assets |
Long Lived Assets Held-for-sale [Line Items] |
Total assets held for sale, gross | 27,754
Machinery and equipment | Shipyard Division Assets |
Long Lived Assets Held-for-sale [Line Items] |
Total assets held for sale, gross | $ 2,187

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- Definition Disposal Group, Including Discontinued Operation, Accumulated Depreciation + References No definition available. + Details
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Balance Type: | credit
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- Definition Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Gross + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109222160&loc=SL51721533-107759 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2473-110228 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109222160&loc=d3e1107-107759 + Details
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