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Transactions with Related Parties - Additional Information - Other (Details)
 6 Months Ended 12 Months Ended
Dec. 31, 2011
Combine Marine Inc.
USD ($)
Dec. 31, 2011
Combine Marine Inc.
EUR (€)
Dec. 31, 2012
Combine Marine Ltd.
USD ($)
Dec. 31, 2012
Combine Marine Ltd.
EUR (€)
Sep. 28, 2012
Maiden Voyage LLC
USD ($)
Oct. 19, 2012
OOCAPE1 Holdings LLC
USD ($)
Related Party Transaction [Line Items]            
Rent expense per month $ 6,600 € 5,000 $ 3,300 € 2,500    
Daily fixed management fee         $ 750 $ 750