Fair Value of Financial Instruments - Recurring Measurements (Table) (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Assets    
Investments in available-for-sale securities $ 0 $ 5,173
Fair Value, Measurements, Recurring    
Assets    
Investments in available-for-sale securities   5,173
Total   5,173
Quoted Prices in Active Markets for Identical Assets (Level I) | Fair Value, Measurements, Recurring    
Assets    
Investments in available-for-sale securities   5,173
Total   $ 5,173