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Commitments Other Commitment Payments (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]  
2015 $ 52,440us-gaap_OtherCommitmentDueInNextTwelveMonths
2016 52,440us-gaap_OtherCommitmentDueInSecondYear
2017 52,440us-gaap_OtherCommitmentDueInThirdYear
2018 39,330us-gaap_OtherCommitmentDueInFourthYear
Other Commitment $ 196,650us-gaap_OtherCommitment