XML 110 R1.htm IDEA: XBRL DOCUMENT v3.19.3
Document and Entity Information - shares
9 Months Ended
Sep. 30, 2019
Oct. 31, 2019
Cover page.    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Entity Registrant Name HC2 HOLDINGS, INC.  
Entity Central Index Key 0001006837  
Current Fiscal Year End Date --12-31  
Entity Emerging Growth Company false  
Entity Smaller Reporting Company true  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding (in shares)   45,935,196
Entity Shell Company false  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes