v3.26.1
Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2026
Jul. 31, 2026
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2026  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Trading Symbol XZO  
Entity Registrant Name Exzeo Group, Inc.  
Entity Central Index Key 0001873951  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period true  
Entity Shell Company false  
Title of 12(b) Security Common Stock, $0.001 par value  
Security Exchange Name NYSE  
Entity File Number 001-42937  
Entity Incorporation, State or Country Code FL  
Entity Tax Identification Number 85-2578837  
Entity Address, Address Line One 1000 Century Park Drive  
Entity Address, City or Town Tampa  
Entity Address, State or Province FL  
Entity Address, Postal Zip Code 33607  
City Area Code 813  
Local Phone Number 776-1000  
Document Quarterly Report true  
Document Transition Report false  
Entity Common Stock, Shares Outstanding   90,085,918