Revenue Recognition - Narrative (Details) - USD ($) |
3 Months Ended | 12 Months Ended |
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Mar. 31, 2018 |
Dec. 31, 2017 |
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Long-term Contracts or Programs Disclosure [Line Items] | ||
Contracts in progress | $ 37,509,000 | $ 28,373,000 |
Advance billings on contracts | 4,301,000 | 5,136,000 |
Accrued contract losses | 6,320,000 | 7,618,000 |
Costs in Excess of Billings | Customer Concentration Risk | Two Major Customers | ||
Long-term Contracts or Programs Disclosure [Line Items] | ||
Contracts in progress | 27,000,000 | |
Billings in Excess of Costs | Customer Concentration Risk | Two Major Customers | ||
Long-term Contracts or Programs Disclosure [Line Items] | ||
Customer advances | 2,800,000 | |
Shipyard Division | ||
Long-term Contracts or Programs Disclosure [Line Items] | ||
Reduction to estimated contract price | $ (11,700,000) | |
Project, Approved Scope, Unapproved Price | ||
Long-term Contracts or Programs Disclosure [Line Items] | ||
Revenue | $ 0 |
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- Definition Long-term Contracts or Programs Disclosure [Line Items] No definition available.
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- Definition Liability attributable to (i) billings in excess of costs under the percentage of completion contract accounting method representing the difference between contractually invoiced amounts (billings) and revenue recognized based, for example, on costs incurred to estimated total costs at period end or (ii) contractually invoiced amounts (billings) in excess of costs incurred and accumulated under the completed contract accounting method that are expected to be realized within one year or one operating cycle, whichever is longer, from the reporting date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from change in estimate of transaction price which increases (decreases) right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. Includes, but is not limited to, change in assessment of whether estimate of variable consideration is constrained. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of revenue earned from products sold or services provided under the terms of a contract, including, but not limited to, government contracts and construction contracts, classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billings which is expected to be collected within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Refundable consideration, usually cash, held by the entity pending satisfactory completion of the entity's obligations or pending the closing of a contract. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Cumulative provision for contract losses not offset against related costs accumulated on the balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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