v3.25.4
SEGMENT REPORTING - Schedule of Significant Components of the Company's Revenues and Expenses (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Segment Reporting Information [Line Items]      
Gross premiums written (Note 7) $ 11,738,420 $ 11,733,066 $ 8,862,366
Net premiums written 9,870,200 9,952,216 7,467,813
Net premiums earned 9,901,182 10,095,760 7,471,133
Net claims and claim expenses incurred 5,615,839 5,332,981 3,573,509
Acquisition expenses 2,550,823 2,643,867 1,875,034
Operational expenses 464,477 496,588 375,182
Underwriting income (loss) 1,270,043 1,622,324 1,647,408
Net investment income 1,703,475 1,654,289 1,253,110
Net foreign exchange gains (losses) (13,504) (76,076) (41,479)
Equity in earnings (losses) of other ventures 71,332 47,087 43,474
Other income (loss) 4,321 1,928 (6,152)
Net realized and unrealized gains (losses) on investments 1,181,268 (27,840) 414,522
Corporate expenses (82,008) (134,784) (127,642)
Interest expense (120,852) (93,768) (73,181)
Income (loss) before taxes 4,014,075 2,993,160 3,110,060
Income tax benefit (expense) (396,332) (32,628) 510,067
Net (income) loss attributable to redeemable noncontrolling interests (935,409) (1,090,172) (1,058,995)
Dividends on preference shares (35,375) (35,375) (35,375)
Net income (loss) available (attributable) to RenaissanceRe common shareholders 2,646,959 1,834,985 2,525,757
Net claims and claim expenses incurred – current accident year 6,706,772 6,184,315 4,024,116
Total net (favorable) adverse development of prior accident years net claims and claim expenses (1,090,933) (851,334) (450,607)
Total net incurred $ 5,615,839 $ 5,332,981 $ 3,573,509
Net claims and claim expense ratio – current accident year 67.70% 61.30% 53.90%
Net claims and claim expense ratio – prior accident years (11.00%) (8.50%) (6.10%)
Net claims and claim expense ratio – calendar year 56.70% 52.80% 47.80%
Underwriting expense ratio 30.50% 31.10% 30.10%
Combined ratio 87.20% 83.90% 77.90%
Other      
Segment Reporting Information [Line Items]      
Gross premiums written (Note 7) $ 0 $ 0 $ 0
Net premiums written 0 0 0
Net premiums earned 0 0 0
Net claims and claim expenses incurred 0 0 0
Acquisition expenses 0 0 0
Operational expenses 0 0 0
Underwriting income (loss) 0 0 0
Net investment income 1,703,475 1,654,289 1,253,110
Net foreign exchange gains (losses) (13,504) (76,076) (41,479)
Equity in earnings (losses) of other ventures 71,332 47,087 43,474
Other income (loss) 4,321 1,928 (6,152)
Net realized and unrealized gains (losses) on investments 1,181,268 (27,840) 414,522
Corporate expenses (82,008) (134,784) (127,642)
Interest expense (120,852) (93,768) (73,181)
Income tax benefit (expense) (396,332) (32,628) 510,067
Net (income) loss attributable to redeemable noncontrolling interests (935,409) (1,090,172) (1,058,995)
Dividends on preference shares (35,375) (35,375) (35,375)
Net claims and claim expenses incurred – current accident year 0 0 0
Total net (favorable) adverse development of prior accident years net claims and claim expenses 0 0 0
Total net incurred 0 0 0
Property      
Segment Reporting Information [Line Items]      
Gross premiums written (Note 7) 4,942,141 4,823,731 3,562,414
Total net (favorable) adverse development of prior accident years net claims and claim expenses (1,089,196) (818,852) (408,905)
Property | Operating Segments      
Segment Reporting Information [Line Items]      
Gross premiums written (Note 7) 4,942,141 4,823,731 3,562,414
Net premiums written 4,043,996 3,833,636 2,967,309
Net premiums earned 3,971,669 3,850,352 3,090,792
Net claims and claim expenses incurred 1,426,015 1,141,726 799,905
Acquisition expenses 714,852 758,554 600,127
Operational expenses 297,481 302,360 251,433
Underwriting income (loss) 1,533,321 1,647,712 1,439,327
Net claims and claim expenses incurred – current accident year 2,515,211 1,960,578 1,208,810
Total net (favorable) adverse development of prior accident years net claims and claim expenses (1,089,196) (818,852) (408,905)
Total net incurred $ 1,426,015 $ 1,141,726 $ 799,905
Net claims and claim expense ratio – current accident year 63.30% 50.90% 39.10%
Net claims and claim expense ratio – prior accident years (27.40%) (21.20%) (13.20%)
Net claims and claim expense ratio – calendar year 35.90% 29.70% 25.90%
Underwriting expense ratio 25.50% 27.50% 27.50%
Combined ratio 61.40% 57.20% 53.40%
Casualty and Specialty      
Segment Reporting Information [Line Items]      
Gross premiums written (Note 7) $ 6,796,279 $ 6,909,335 $ 5,299,952
Total net (favorable) adverse development of prior accident years net claims and claim expenses (1,737) (32,482) (41,702)
Casualty and Specialty | Operating Segments      
Segment Reporting Information [Line Items]      
Gross premiums written (Note 7) 6,796,279 6,909,335 5,299,952
Net premiums written 5,826,204 6,118,580 4,500,504
Net premiums earned 5,929,513 6,245,408 4,380,341
Net claims and claim expenses incurred 4,189,824 4,191,255 2,773,604
Acquisition expenses 1,835,971 1,885,313 1,274,907
Operational expenses 166,996 194,228 123,749
Underwriting income (loss) (263,278) (25,388) 208,081
Net claims and claim expenses incurred – current accident year 4,191,561 4,223,737 2,815,306
Total net (favorable) adverse development of prior accident years net claims and claim expenses (1,737) (32,482) (41,702)
Total net incurred $ 4,189,824 $ 4,191,255 $ 2,773,604
Net claims and claim expense ratio – current accident year 70.70% 67.60% 64.30%
Net claims and claim expense ratio – prior accident years 0.00% (0.50%) (1.00%)
Net claims and claim expense ratio – calendar year 70.70% 67.10% 63.30%
Underwriting expense ratio 33.70% 33.30% 31.90%
Combined ratio 104.40% 100.40% 95.20%