Document and Entity Information Statement - USD ($)
12 Months Ended
Dec. 31, 2016
Mar. 13, 2017
Jun. 30, 2016
Document and Entity Information [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2016    
Document Fiscal Year Focus 2016    
Document Fiscal Period Focus FY    
Trading Symbol NGHC    
Entity Registrant Name National General Holdings Corp.    
Entity Central Index Key 0001578735    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status No    
Entity Filer Category Large Accelerated Filer    
Entity Public Float     $ 1,040,542,731
Entity Common Stock, Shares Outstanding   106,502,250