v3.25.4
ACQUISITION OF VALIDUS - Overview (Details) - Validus - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Nov. 01, 2023
May 22, 2023
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Business Combination [Line Items]          
Percentage of voting interests acquired 100.00%        
Total purchase price $ 3,020,168 $ 2,985,000      
Total cash consideration paid by RenaissanceRe as acquisition consideration $ 2,735,000        
Shares issued (in shares) 1,322,541        
Business acquisition, common shares (in shares) $ 285,168 $ 250,000      
Business acquisition, share price ( in dollars per share) $ 226.97 $ 189.03      
Corporate expenses associated with the acquisition     $ 5,400 $ 61,900 $ 76,400
Agent relationships - top four          
Business Combination [Line Items]          
Amortization period majority 10 years        
Renewal rights          
Business Combination [Line Items]          
Amortization period majority 10 years