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Derivative Financial Instruments and Related Hedging Programs, Notional Quantity Table (Details) - Jun. 30, 2015 | EUR (€) mmlbs MMBTU MWH
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Remainder of 2015 |
Summary of material derivative positions |
Percentage of natural gas purchases for which the Company's exposure to fluctuations in gas prices had been substantially reduced | 79.00%
Percentage of Electricity Purchases For Which Company Exposure To Fluctuations In Electricity Prices Have Been Reduced | 54.00%
2016 |
Summary of material derivative positions |
Percentage of natural gas purchases for which the Company's exposure to fluctuations in gas prices had been substantially reduced | 75.00%
Percentage of Electricity Purchases For Which Company Exposure To Fluctuations In Electricity Prices Have Been Reduced | 54.00%
2017 |
Summary of material derivative positions |
Percentage of natural gas purchases for which the Company's exposure to fluctuations in gas prices had been substantially reduced | 34.00%
Percentage of Electricity Purchases For Which Company Exposure To Fluctuations In Electricity Prices Have Been Reduced | 36.00%
Not Designated as Hedging Instrument | Electricity Member | Fixed priced contracts | Purchase |
Derivative [Line Items] |
Derivative, Nonmonetary Notional Amount | MWH | 88,340
Not Designated as Hedging Instrument | Aluminum | Fixed priced contracts | Purchase |
Derivative [Line Items] |
Derivative, Nonmonetary Notional Amount | 117.1
Not Designated as Hedging Instrument | Aluminum | Fixed priced contracts | Sales |
Derivative [Line Items] |
Derivative, Nonmonetary Notional Amount | 0.9
Not Designated as Hedging Instrument | Aluminum | Midwest premium swap contracts | Purchase |
Derivative [Line Items] |
Derivative, Nonmonetary Notional Amount | 93.2
Not Designated as Hedging Instrument | Natural Gas | Fixed priced contracts | Purchase |
Derivative [Line Items] |
Derivative, Nonmonetary Notional Amount | MMBTU | 6,160,000
Designated as Hedging Instrument [Member] | Foreign Currency Member | Fixed priced contracts | Purchase |
Summary of material derivative positions |
Notional amount of contracts | € | € 8,135,000

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