Current report filing

Document and Entity Information

Document and Entity Information
Apr. 15, 2021
Cover [Abstract]  
Entity Registrant Name SEACOR HOLDINGS INC /NEW/
Amendment Flag false
Entity Central Index Key 0000859598
Current Fiscal Year End Date --12-31
Document Type 8-K
Document Period End Date Apr. 15, 2021
Entity Incorporation State Country Code DE
Entity File Number 1-12289
Entity Tax Identification Number 13-3542736
Entity Address, Address Line One 2200 Eller Drive
Entity Address, City or Town Fort Lauderdale
Entity Address, State or Province FL
Entity Address, Postal Zip Code 33316
City Area Code (954)
Local Phone Number 523-2200
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $0.01 par value
Trading Symbol CKH
Security Exchange Name NYSE
Entity Emerging Growth Company false