Quarterly report pursuant to sections 13 or 15(d)

Document and Entity Information

v2.3.0.11
Document and Entity Information
3 Months Ended
Mar. 31, 2011
Apr. 21, 2011
Document and Entity Information    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Mar. 31, 2011
Document Fiscal Year Focus 2011  
Document Fiscal Period Focus Q1  
Entity Registrant Name SEACOR HOLDINGS INC /NEW/  
Entity Central Index Key 0000859598  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   21,657,856