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Derivatives - Summary of Gains and (Losses) on Derivative Contracts (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Gain (loss), net on derivative contract | $ 3,245 | $ 4,057 | $ 10,675 | $ 8,916
FX/commodities options |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Gain (loss), net on derivative contract | 87 | 30 | 251 | 228
FX swaps |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Gain (loss), net on derivative contract | 28 | 46 | 166 | 371
Futures |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Gain (loss), net on derivative contract | 3,102 | 3,478 | 10,258 | 8,966
Forwards |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Gain (loss), net on derivative contract | $ 28 | $ 503 | $ 0 | $ (649)

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959 + Details
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