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Hedging Activities And Financial Instruments (Narrative) (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016
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Hedging Activities And Financial Instruments [Abstract] |  |
Foreign currency contracts | $ 37,703 | $ 0

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- References No definition available. + Details
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- Definition Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into. + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant