Annual report pursuant to Section 13 and 15(d)

Series A Preferred Stock (Details)

v2.4.0.8
Series A Preferred Stock (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended 0 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 23, 2011
Series A Preferred Stock [Member]
Jan. 31, 2013
Series A Preferred Stock [Member]
Jul. 31, 2011
Series A Preferred Stock [Member]
Class of Stock [Line Items]            
Preferred stock, shares authorized 10,000,000 10,000,000       10,000,000
Preferred stock, par value $ 0.01 $ 0.01   $ 100   $ 0.01
Preferred stock, shares issued 0 1,400,000   1,400,000    
Preferred Stock, Dividend Rate, Percentage       6.00%    
Exchange of advances from SEACOR for Series A Preferred Stock $ 0 $ 0 $ 140,000 $ 140,000    
Shares exchanged         1,400,000