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Financial Instruments - Fair value of Assets and Liabilities (Table) (Details) - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Forward contracts-liability position | $ (490) | $ (1,009)
Interest rate swaps-liability position | (65,585) | (73,931)
Total | (66,075) | (74,940)
Interest rate swaps-liability position | 65,585 | 73,931
Fair Value Inputs Level 1 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Forward contracts-liability position | 0 | 0
Interest rate swaps-liability position | 0 | 0
Total | 0 | 0
Interest rate swaps-liability position | 0 | 0
Fair Value Inputs Level 2 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Forward contracts-liability position | (490) | (1,009)
Interest rate swaps-liability position | (65,585) | (73,931)
Total | (66,075) | (74,940)
Interest rate swaps-liability position | 65,585 | 73,931
Fair Value Inputs Level 3 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Forward contracts-liability position | 0 | 0
Interest rate swaps-liability position | 0 | 0
Total | 0 | 0
Interest rate swaps-liability position | $ 0 | $ 0

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- Definition Fair value as of the balance sheet date of all foreign currency derivative assets 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 50 -Paragraph 4B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624163-113959 + Details
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