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Significant Accounting Policies - Additional Information (Details) $ in Millions | 6 Months Ended
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Jun. 30, 2018 USD ($)
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
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%

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