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Fair Value of Financial Instruments and Derivatives Instuments, detail 5 (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2015
USD ($)
Assets Measured at Fair Value on a Non-recurring Basis [Line Items]  
Loss $ 12,899
Liability directly associated with assets held for sale, net 16,724
Stalo  
Assets Measured at Fair Value on a Non-recurring Basis [Line Items]  
Loss 7,185
Kypros Unity  
Assets Measured at Fair Value on a Non-recurring Basis [Line Items]  
Loss 5,714
Fair Value on a Non-recurring Basis | Significant Other Observable Inputs (Level 2)  
Assets Measured at Fair Value on a Non-recurring Basis [Line Items]  
Fair value assets held for sale 31,750
Fair Value on a Non-recurring Basis | Significant Other Observable Inputs (Level 2) | Stalo  
Assets Measured at Fair Value on a Non-recurring Basis [Line Items]  
Fair value assets held for sale 10,000
Fair Value on a Non-recurring Basis | Significant Other Observable Inputs (Level 2) | Kypros Unity  
Assets Measured at Fair Value on a Non-recurring Basis [Line Items]  
Fair value assets held for sale 21,750
Liability directly associated with assets held for sale, net $ 16,724