Derivative Financial Instruments (Details 2) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Offsetting Derivative Assets [Abstract]
Derivative Liability	$ 24,954	$ 0
Offsetting Derivative Liabilities [Abstract]
Derivative Asset	0	16,284
Current liabilities [Member]
Offsetting Derivative Assets [Abstract]
Gross amounts of recognized liabilities	(24,203)	(483)
Gross amounts netted in the consolidated balance sheet	0	(483)
Derivative Liability	24,203	0
Other liabilities [Member]
Offsetting Derivative Assets [Abstract]
Gross amounts of recognized liabilities	(751)
Gross amounts netted in the consolidated balance sheet	0
Derivative Liability	$ 751
Other Current Assets [Member]
Offsetting Derivative Liabilities [Abstract]
Gross amounts of recognized assets		16,767
Gross amounts netted in the consolidated balance sheets		(483)
Derivative Asset		$ 16,284

Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 55
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-Publisher FASB
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+ References

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+ References

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+ References

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Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

+ References

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