DERIVATIVE FINANCIAL INSTRUMENTS (Details Textuals) - USD ($)
$ in Millions |
3 Months Ended |
6 Months Ended |
|
|
|
Jun. 30, 2017 |
Jun. 30, 2016 |
Jun. 30, 2017 |
Jun. 30, 2016 |
Dec. 31, 2016 |
Oct. 31, 2016 |
Jun. 30, 2012 |
| Derivative [Line Items] |
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| Commodity forward contracts with Wells Fargo |
$ 29.3
|
|
$ 29.3
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|
|
|
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| Commodity forward contracts with Citibank |
29.8
|
|
29.8
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|
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| Commodity Forward Contracts with Counterparty Merrill Lynch |
27.4
|
|
27.4
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|
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| Commodity Forward Contracts with Counterparty JPMorgan Chase |
9.2
|
|
9.2
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|
|
|
| Derivative Liability, Fair Value, Gross Liability |
27.2
|
$ 11.7
|
27.2
|
$ 11.7
|
$ 29.8
|
|
|
| Amount of terminated interest rate swaps |
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|
$ 73.1
|
| Gain on terminated interest rate swaps |
0.1
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|
0.1
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|
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|
$ 2.2
|
| Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net |
0.0
|
0.0
|
0.0
|
0.0
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|
| Commodity Contract |
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| Derivative [Line Items] |
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| Cash Flow Hedges Derivative Instruments at Fair Value, Net |
1.9
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|
1.9
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|
|
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| Cash Flow Hedge Gain (Loss) to be Reclassified wihtin Twelve Months |
|
|
0.1
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| Interest Rate Contract |
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| Derivative [Line Items] |
|
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| Cash Flow Hedges Derivative Instruments at Fair Value, Net |
9.6
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|
9.6
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| Cash Flow Hedge Gain (Loss) to be Reclassified wihtin Twelve Months |
|
|
3.1
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|
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| Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net |
0.5
|
|
0.5
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| Forward Contracts |
|
|
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|
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| Derivative [Line Items] |
|
|
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|
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|
| Notional amount |
71.8
|
86.5
|
71.8
|
86.5
|
73.2
|
|
|
| Forward Contracts Sell |
|
|
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| Derivative [Line Items] |
|
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| Notional amount |
90.4
|
117.7
|
90.4
|
117.7
|
100.8
|
|
|
| Fixed Interest Rate Swaps $1,100M (Tranche 1) |
|
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| Derivative [Line Items] |
|
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| Notional amount |
|
1,100.0
|
|
1,100.0
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| Fixed Interest Rate Swaps $900M (Tranche 2) |
|
|
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| Derivative [Line Items] |
|
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| Notional amount |
|
900.0
|
|
900.0
|
|
|
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| Fixed Interest Rate Swaps $400M (Tranche 3) |
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| Derivative [Line Items] |
|
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|
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| Notional amount |
|
400.0
|
|
400.0
|
|
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| Interest Rate Swaps Designated As Fair Value Hedges |
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| Derivative [Line Items] |
|
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| Notional amount |
500.0
|
250.0
|
500.0
|
250.0
|
$ 500.0
|
$ 250.0
|
|
| Derivative Liability, Fair Value, Gross Liability |
24.9
|
|
24.9
|
|
|
|
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| Amount of gain (loss) |
$ 0.7
|
$ 0.5
|
$ 1.9
|
$ 0.5
|
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