Derivative Instruments - Summary of Change in Fair Value Reclassified or Expected to be Reclassified from Accumulated Other Comprehensive Income (Loss) to Earnings (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
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Jun. 30, 2014
|
Jun. 30, 2013
|
Jun. 30, 2014
|
Jun. 30, 2013
|
|
Foreign Currency Sales Contracts [Member] | Cash Flow Hedges [Member]
|
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Derivative [Line Items] | ||||
Expected release to pre - tax earnings | $ (33) | $ (33) | ||
Amount released to pre - tax earnings | 0 | 0 | 0 | 0 |
Foreign Currency Purchase Contracts [Member]
|
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Derivative [Line Items] | ||||
Expected release to pre - tax earnings | 28 | 28 | ||
Amount released to pre - tax earnings | 7 | 7 | 14 | 14 |
Futures Contracts - Copper and Aluminum [Member]
|
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Derivative [Line Items] | ||||
Expected release to pre - tax earnings | 35 | 35 | ||
Amount released to pre - tax earnings | $ (87) | $ (101) | $ (123) | $ (115) |