Derivatives (Details 6) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Derivatives not designated as hedging instruments
Interest rate contracts included in other assets	$ 3	$ 1,179
Interest rate contracts included in other long term liabilities	(2,071)	(302)
Total fair value of interest rate derivatives not designated as hedging instruments	(2,068)	877
Derivatives designated as hedging instruments
Interest rate contract included in other long term liabilities	(597)	(1,036)
Total fair value of interest rate derivatives designated as hedging instruments	$ (597)	$ (1,036)

Fair value as of the balance sheet date of all derivative assets not designated as hedging instruments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624163-113959

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Fair value as of the balance sheet date of all derivatives not designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

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Fair value as of the balance sheet date of all derivative liabilities not designated as hedging instruments.

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

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-Section 50

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