v3.26.3
EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Numerator:        
Net income (loss) available (attributable) to RenaissanceRe common shareholders $ (161,384) $ 907,667 $ 777,385 $ 1,895,321
Amount allocated to participating common shareholders (629) (15,019) (13,413) (29,905)
Net income (loss) allocated to RenaissanceRe common shareholders $ (162,013) $ 892,648 $ 763,972 $ 1,865,416
Denominator:        
Denominator for basic income (loss) per RenaissanceRe common share - weighted average common shares (in shares) 40,284 45,845 41,366 47,106
Per common share equivalents of non-vested shares (in shares) 0 160 181 162
Denominator for diluted income (loss) per RenaissanceRe common share - adjusted weighted average common shares and assumed conversions (in shares) 40,284 46,005 41,547 47,268
Net income (loss) available (attributable) to RenaissanceRe common shareholders per common share – basic (in dollars per share) $ (4.02) $ 19.47 $ 18.47 $ 39.60
Net income (loss) available (attributable) to RenaissanceRe common shareholders per common share – diluted (in dollars per share) $ (4.02) $ 19.40 $ 18.39 $ 39.46
Potentially dilutive securities (in shares) 182