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Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Provisions for loss contracts | $ 81,200 |  | $ 81,200 |  | $ 94,000
Deferred pre-production costs | 18,700 |  | 18,700 |  | $ 20,200
Net income (loss) attributable to noncontrolling interest | (1,145) | $ 135 | (2,054) | $ (1,750) |
Selling, general and administrative expenses | 171,157 | 127,918 | 318,358 | 250,605 |
Interest expense, net | 31,920 | 17,564 | 52,204 | 37,422 |
Other income (expense), net | $ 2,171 | 936 | $ 4,757 | 5,747 |
Restatement Adjustment | Accounting Standards Update 2017-07 |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Selling, general and administrative expenses |  | 300 |  | 700 |
Interest expense, net |  | 2,200 |  | 4,300 |
Other income (expense), net |  | $ 2,500 |  | $ 5,000 |
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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