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Derivative Financial Instruments - Outstanding commodity and currency forward contracts not designated as hedging (Details) - Derivatives NOT designated as hedging instruments - Foreign currency exchange contracts | Mar. 31, 2017 USD ($) | Mar. 31, 2017 EUR (€) | Dec. 31, 2016 USD ($) | Dec. 31, 2016 EUR (€)
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European Euro |  |  |  |
Derivative [Line Items] |  |  |  |
Notional amount | € |  | € 4,929,005 |  | € 10,502,111
United States Dollar |  |  |  |
Derivative [Line Items] |  |  |  |
Notional amount | $ | $ 5,550,000 |  | $ 15,318,000 |

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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