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DERIVATIVES AND RISK MANAGEMENT ACTIVITIES Table 3 - Impact of Derivatives on Earnings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Derivative Instruments, Gain (Loss)
Gain (loss) to be reclassified during next 12 months, forward starting interest rate swaps	$ (5,100)
Designated as Hedging Instrument | Fair Value Hedges | Commodity contracts | Cost of product sales
Derivative Instruments, Gain (Loss)
Gain (loss) recognized in income on derivative	806	$ (11,254)	$ 21,589
Gain (loss) recognized in income on hedged item	(656)	15,295	(18,047)
Gain (loss) recognized in income on derivative (ineffective portion)	150	4,041	3,542
Designated as Hedging Instrument | Cash Flow Hedges | Interest rate swaps | Other comprehensive income (loss)
Derivative Instruments, Gain (Loss)
Gain (loss) recognized in other comprehensive income on derivative (effective portion)	(8,670)	(2,621)	1,303
Designated as Hedging Instrument | Cash Flow Hedges | Interest rate swaps | Interest expense, net
Derivative Instruments, Gain (Loss)
Gain (loss) reclassified from AOCI into income (effective portion)	(6,624)	(8,331)	(9,802)
Not Designated as Hedging Instrument | Commodity contracts | Cost of product sales
Derivative Instruments, Gain (Loss)
Gain (loss) recognized in income on derivative	$ (668)	$ 225	$ 2,208

X

- Definition

Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

+ References

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-Publisher FASB
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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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