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Information Related to Effect of Derivative Instruments on Our Consolidated Condensed Statements of Income (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Gain (loss) on derivatives | $ (878) | $ (434) | $ 667 | $ 5,516
Commodity Derivatives |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Gain (loss) on derivatives | (33) | (124) | 52 | (48)
Other Comprehensive Income (Loss) | Foreign Currency Derivatives |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Gain (loss) on derivatives | (1,049) | (430) | 244 | (777)
Other Comprehensive Income (Loss) | Commodity Derivatives |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Gain (loss) on derivatives | 109 | (124) | 405 | (48)
Revaluation of Derivatives | Foreign Currency Derivatives |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Gain (loss) on derivatives |  | 81 |  | 6,278
Revaluation of Derivatives | Currency Related Interest Rate Swap |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Gain (loss) on derivatives |  | (134) |  | (7,295)
Cost of Sales | Foreign Currency Derivatives |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Gain (loss) on derivatives | 100 | (192) | 135 | (320)
Cost of Sales | Commodity Derivatives |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Gain (loss) on derivatives | (142) |  | (353) |
Selling, general and administrative expense | Foreign Currency Derivatives |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Gain (loss) on derivatives |  | 25 | 139 | 46
Foreign Currency (Loss) Gain | Foreign Currency Derivatives |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Gain (loss) on derivatives | $ 71 | $ 82 | $ 149 | $ 289

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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/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
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