Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details)

v2.4.0.6
Related Party Transactions (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Related Party Transaction [Line Items]    
Outstanding accrued dividends paid $ 4,953 $ 0
SEACOR [Member]
   
Related Party Transaction [Line Items]    
Expenses from transactions with related party 866 2,537
Outstanding accrued dividends paid 5,000  
Payroll Costs [Member] | SEACOR [Member]
   
Related Party Transaction [Line Items]    
Expenses from transactions with related party 5 1,973
Administrative Support [Member] | SEACOR [Member]
   
Related Party Transaction [Line Items]    
Expenses from transactions with related party 299 564
Amended and Restated Transition Services Agreement [Member] | SEACOR [Member]
   
Related Party Transaction [Line Items]    
Expenses from transactions with related party $ 562 $ 0