v3.25.2
Cover Page - shares
 6 Months Ended
Jun. 30, 2025
Jul. 25, 2025
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2025  
Document Transition Report false  
Entity File Number 001-40244  
Entity Registrant Name HAGERTY, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 86-1213144  
Entity Address, Address Line One 121 Drivers Edge  
Entity Address, City or Town Traverse City  
Entity Address, State or Province MI  
Entity Address, Postal Zip Code 49684  
City Area Code (800)  
Local Phone Number 922-4050  
Title of 12(b) Security Class A common stock, par value $0.0001 per share  
Trading Symbol HGTY  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
CIK 0001840776  
Amendment Flag false  
Fiscal Period Focus Q2  
Fiscal Year Focus 2025  
Current Fiscal Year End Date --12-31  
Class A Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding (in shares)   90,942,223
Class V Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding (in shares)   251,033,906