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Significant Accounting Policies - Additional Information (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2018 USD ($) customer | Dec. 31, 2017 USD ($) customer | Dec. 31, 2016 customer
Significant Accounting Policies [Line Items] |  |  |
Deferred financing costs recorded as a non-current asset | $ 2.2 | $ 3.1 |
Net deferred financing costs recorded as a non-current contra liability | 4.8 | 5.5 |
Allowance for doubtful accounts | 0.3 | $ 0.3 |
Accounting Standards Update No. 2014-09 |  |  |
Significant Accounting Policies [Line Items] |  |  |
Cumulative net earnings effect of new accounting standard on opening retained earnings | 3.8 |  |
Accounting Standards Update 2018-02 |  |  |
Significant Accounting Policies [Line Items] |  |  |
Reduction in retained earnings due to adoption of the new accounting standard | $ 1.6 |  |
Net sales | Customer concentration |  |  |
Significant Accounting Policies [Line Items] |  |  |
Number of major customers | customer | 2 | 2 | 2
Two customers and their related subcontractors | Net sales | Customer concentration |  |  |
Significant Accounting Policies [Line Items] |  |  |
Concentration percentage (as a percent) | 66.00% | 69.00% | 69.00%
Minimum | Building and improvements |  |  |
Significant Accounting Policies [Line Items] |  |  |
Useful life | 10 years |  |
Minimum | Machinery and equipment |  |  |
Significant Accounting Policies [Line Items] |  |  |
Useful life | 3 years |  |
Minimum | Software |  |  |
Significant Accounting Policies [Line Items] |  |  |
Finite lived intangible assets, useful life | 3 years |  |
Maximum | Building and improvements |  |  |
Significant Accounting Policies [Line Items] |  |  |
Useful life | 40 years |  |
Maximum | Machinery and equipment |  |  |
Significant Accounting Policies [Line Items] |  |  |
Useful life | 25 years |  |
Maximum | Software |  |  |
Significant Accounting Policies [Line Items] |  |  |
Finite lived intangible assets, useful life | 10 years |  |
Aerospace Composites Malaysia Sdn. Bhd. |  |  |
Significant Accounting Policies [Line Items] |  |  |
Interest in affiliated company, accounted for using equity method of accounting (as a percent) | 50.00% |  |
Hexcut Services |  |  |
Significant Accounting Policies [Line Items] |  |  |
Interest in affiliated company, accounted for using equity method of accounting (as a percent) | 25.00% |  |

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