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Organization and Summary of Significant Accounting Policies (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Jan. 01, 2019 | Jan. 01, 2018
Significant Accounting Policies [Line Items] |  |  |  |  |
Unapproved change order and claim revenue |  | $ 0 | $ 0 |  |
Revenue, variable consideration, contract price reduction | $ 11,200,000 | 11,700,000 |  |  |
Prepaid contract costs | $ 0 | 0 |  |  |
Minimum |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful life of property, plant and equipment | 3 years |  |  |  |
Maximum |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful life of property, plant and equipment | 25 years |  |  |  |
Accounting Standards Update 2014-09 |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Cumulative effect of new accounting principle |  |  |  |  | $ 400,000
Scenario, Adjustment |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Contract with customer, liability |  | 7,600,000 |  |  |
Asset impairments and (gain) loss on assets held for sale, net |  | (300,000) |  |  |
Contract liabilities |  | $ 7,200,000 | $ (9,100,000) |  |
Subsequent Event | Scenario, Forecast | Accounting Standards Update 2016-02 | Minimum |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Operating lease, right-of-use asset |  |  |  | $ 4,000,000 |
Operating lease, liability |  |  |  | 4,000,000 |
Subsequent Event | Scenario, Forecast | Accounting Standards Update 2016-02 | Maximum |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Operating lease, right-of-use asset |  |  |  | 6,000,000 |
Operating lease, liability |  |  |  | $ 6,000,000 |

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- Definition Amount of deferred costs for long-term contracts and programs. Includes, but is not limited to, initial tooling costs and deferred production costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(d)(i)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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