v3.25.4
EARNINGS PER SHARE - Computation of Basic and Diluted Earnings Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Numerator:      
Net income (loss) available (attributable) to RenaissanceRe common shareholders $ 2,646,959 $ 1,834,985 $ 2,525,757
Amount allocated to participating common shareholders (42,424) (27,472) (37,308)
Net income (loss) allocated to RenaissanceRe common shareholders $ 2,604,535 $ 1,807,513 $ 2,488,449
Denominator:      
Denominator for basic income (loss) per RenaissanceRe common share - weighted average common shares (in shares) 46,316 51,186 47,493
Per common share equivalents of non-vested shares (in shares) 167 153 114
Denominator for diluted income (loss) per RenaissanceRe common share - adjusted weighted average common shares and assumed conversions (in shares) 46,483 51,339 47,607
Net income (loss) available (attributable) to RenaissanceRe common shareholders per common share – basic (in dollars per share) $ 56.23 $ 35.31 $ 52.40
Net income (loss) available (attributable) to RenaissanceRe common shareholders per common share – diluted (in dollars per share) $ 56.03 $ 35.21 $ 52.27