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Fair Value Measurements Fair Value Measurements (Derivative Summary) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Fair Value Measurements [Abstract]
Derivative Liability	$ 742us-gaap_DerivativeLiabilities	$ 742us-gaap_DerivativeLiabilities

Fair value, after the effects of master netting arrangements, of a 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. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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