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Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Provisions for loss contracts | $ 66,500 |  | $ 66,500 |  | $ 94,000
Deferred pre-production costs | 20,300 |  | 20,300 |  | $ 20,200
Net income (loss) attributable to noncontrolling interest | (1,670) | $ 1,040 | (3,724) | $ (710) |
Selling, general and administrative expenses | 146,839 | 118,183 | 465,197 | 368,788 |
Interest expense, net | 23,713 | 20,038 | 75,917 | 57,460 |
Other income (expense), net | $ 1,201 | (443) | $ 5,958 | 5,304 |
Restatement Adjustment | Accounting Standards Update 2017-07 |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Selling, general and administrative expenses |  | 300 |  | 1,000 |
Interest expense, net |  | 2,200 |  | 6,500 |
Other income (expense), net |  | $ 2,500 |  | $ 7,500 |
Transferred at Point in Time |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Revenue derived from performance obligations satisfied when control passes to customer (as a percent) |  |  | 75.00% |  |

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- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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