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SEGMENT REPORTING (Tables)

12 Months Ended

Dec. 31, 2024

Segment Reporting, Measurement Disclosures [Abstract]

Schedule of Significant Components of the Company's Revenues and Expenses

A summary of the significant components of the Company’s revenues and expenses by segment is as follows:

			Year ended December 31, 2024			Property						Casualty and Specialty						Other						Total
			Gross premiums written			$	4,823,731					$	6,909,335					$	—					$	11,733,066
			Net premiums written			$	3,833,636					$	6,118,580					$	—					$	9,952,216
			Net premiums earned			$	3,850,352					$	6,245,408					$	—					$	10,095,760
			Net claims and claim expenses incurred			1,141,726						4,191,255						—						5,332,981
			Acquisition expenses			758,554						1,885,313						—						2,643,867
			Operational expenses			302,360						194,228						—						496,588
			Underwriting income (loss)			$	1,647,712					$	(25,388)					$	—					1,622,324
			Net investment income															1,654,289						1,654,289
			Net foreign exchange gains (losses)															(76,076)						(76,076)
			Equity in earnings (losses) of other ventures															47,087						47,087
			Other income (loss)															1,928						1,928
			Net realized and unrealized gains (losses) on investments															(27,840)						(27,840)
			Corporate expenses															(134,784)						(134,784)
			Interest expense															(93,768)						(93,768)
			Income (loss) before taxes																					2,993,160
			Income tax benefit (expense)															(32,628)						(32,628)
			Net (income) loss attributable to redeemable noncontrolling interests															(1,090,172)						(1,090,172)
			Dividends on preference shares															(35,375)						(35,375)
			Net income (loss) available (attributable) to RenaissanceRe common shareholders																					$	1,834,985
			Net claims and claim expenses incurred – current accident year			$	1,960,578					$	4,223,737					$	—					$	6,184,315
			Net claims and claim expenses incurred – prior accident years			(818,852)						(32,482)						—						(851,334)
			Net claims and claim expenses incurred – total			$	1,141,726					$	4,191,255					$	—					$	5,332,981
			Net claims and claim expense ratio – current accident year			50.9		%				67.6		%										61.3		%
			Net claims and claim expense ratio – prior accident years			(21.2)		%				(0.5)		%										(8.5)		%
			Net claims and claim expense ratio – calendar year			29.7		%				67.1		%										52.8		%
			Underwriting expense ratio			27.5		%				33.3		%										31.1		%
			Combined ratio			57.2		%				100.4		%										83.9		%

			Year ended December 31, 2023			Property						Casualty and Specialty						Other						Total
			Gross premiums written			$	3,562,414					$	5,299,952					$	—					$	8,862,366
			Net premiums written			$	2,967,309					$	4,500,504					$	—					$	7,467,813
			Net premiums earned			$	3,090,792					$	4,380,341					$	—					$	7,471,133
			Net claims and claim expenses incurred			799,905						2,773,604						—						3,573,509
			Acquisition expenses			600,127						1,274,907						—						1,875,034
			Operational expenses			251,433						123,749						—						375,182
			Underwriting income (loss)			$	1,439,327					$	208,081					$	—					1,647,408
			Net investment income															1,253,110						1,253,110
			Net foreign exchange gains (losses)															(41,479)						(41,479)
			Equity in earnings (losses) of other ventures															43,474						43,474
			Other income (loss)															(6,152)						(6,152)
			Net realized and unrealized gains (losses) on investments															414,522						414,522
			Corporate expenses															(127,642)						(127,642)
			Interest expense															(73,181)						(73,181)
			Income (loss) before taxes																					3,110,060
			Income tax benefit (expense)															510,067						510,067
			Net (income) loss attributable to redeemable noncontrolling interests															(1,058,995)						(1,058,995)
			Dividends on preference shares															(35,375)						(35,375)
			Net income (loss) available (attributable) to RenaissanceRe common shareholders																					$	2,525,757
			Net claims and claim expenses incurred – current accident year			$	1,208,810					$	2,815,306					$	—					$	4,024,116
			Net claims and claim expenses incurred – prior accident years			(408,905)						(41,702)						—						(450,607)
			Net claims and claim expenses incurred – total			$	799,905					$	2,773,604					$	—					$	3,573,509
			Net claims and claim expense ratio – current accident year			39.1		%				64.3		%										53.9		%
			Net claims and claim expense ratio – prior accident years			(13.2)		%				(1.0)		%										(6.1)		%
			Net claims and claim expense ratio – calendar year			25.9		%				63.3		%										47.8		%
			Underwriting expense ratio			27.5		%				31.9		%										30.1		%
			Combined ratio			53.4		%				95.2		%										77.9		%

			Year ended December 31, 2022			Property						Casualty and Specialty						Other						Total
			Gross premiums written			$	3,734,241					$	5,479,299					$	—					$	9,213,540
			Net premiums written			$	2,847,659					$	4,348,501					$	—					$	7,196,160
			Net premiums earned			$	2,770,227					$	3,563,762					$	—					$	6,333,989
			Net claims and claim expenses incurred			2,044,771						2,294,069						—						4,338,840
			Acquisition expenses			547,210						1,021,396						—						1,568,606
			Operational expenses			194,355						82,336						—						276,691
			Underwriting income (loss)			$	(16,109)					$	165,961					$	—					149,852
			Net investment income															559,932						559,932
			Net foreign exchange gains (losses)															(56,909)						(56,909)
			Equity in earnings (losses) of other ventures															11,249						11,249
			Other income (loss)															12,636						12,636
			Net realized and unrealized gains (losses) on investments															(1,800,485)						(1,800,485)
			Corporate expenses															(46,775)						(46,775)
			Interest expense															(48,335)						(48,335)
			Income (loss) before taxes																					(1,218,835)
			Income tax benefit (expense)															59,019						59,019
			Net (income) loss attributable to redeemable noncontrolling interests															98,613						98,613
			Dividends on preference shares															(35,375)						(35,375)
			Net income (loss) available (attributable) to RenaissanceRe common shareholders																					$	(1,096,578)
			Net claims and claim expenses incurred – current accident year			$	2,250,512					$	2,335,910					$	—					$	4,586,422
			Net claims and claim expenses incurred – prior accident years			(205,741)						(41,841)						—						(247,582)
			Net claims and claim expenses incurred – total			$	2,044,771					$	2,294,069					$	—					$	4,338,840
			Net claims and claim expense ratio – current accident year			81.2		%				65.5		%										72.4		%
			Net claims and claim expense ratio – prior accident years			(7.4)		%				(1.1)		%										(3.9)		%
			Net claims and claim expense ratio – calendar year			73.8		%				64.4		%										68.5		%
			Underwriting expense ratio			26.8		%				30.9		%										29.2		%
			Combined ratio			100.6		%				95.3		%										97.7		%

Schedule of Gross Premiums Written Allocated to the Territory of Coverage Exposure

The following is a summary of the Company’s gross premiums written allocated to the territory of coverage exposure:

						2024												2023												2022
			Year ended December 31,			Gross Premiums Written						Percentage of Gross Premiums Written						Gross Premiums Written						Percentage of Gross Premiums Written						Gross Premiums Written						Percentage of Gross Premiums Written
			Property
			U.S. and Caribbean			$	2,996,981					25.5		%				$	2,303,013					26.0		%				$	2,343,830					25.5		%
			Worldwide			1,063,292						9.1		%				798,623						9.0		%				1,053,369						11.4		%
			Europe			244,523						2.1		%				163,500						1.9		%				62,998						0.7		%
			Worldwide (excluding U.S.) (1)			180,688						1.5		%				70,646						0.8		%				37,436						0.4		%
			Japan			106,533						0.9		%				85,823						1.0		%				104,767						1.1		%
			Australia and New Zealand			101,976						0.9		%				70,107						0.8		%				86,080						0.9		%
			Other			129,738						1.1		%				70,702						0.8		%				45,761						0.5		%
			Total Property			4,823,731						41.1		%				3,562,414						40.3		%				3,734,241						40.5		%
			Casualty and Specialty
			Worldwide			3,217,662						27.3		%				2,280,687						25.7		%				2,328,030						25.3		%
			U.S. and Caribbean			2,986,956						25.5		%				2,333,096						26.3		%				2,556,466						27.7		%
			Europe			353,863						3.0		%				197,228						2.2		%				327,831						3.6		%
			Worldwide (excluding U.S.) (1)			195,489						1.7		%				130,334						1.5		%				177,746						1.9		%
			Australia and New Zealand			43,183						0.4		%				27,397						0.3		%				35,973						0.4		%
			Other			112,182						1.0		%				331,210						3.7		%				53,253						0.6		%
			Total Casualty and Specialty			6,909,335						58.9		%				5,299,952						59.7		%				5,479,299						59.5		%
			Total gross premiums written			$	11,733,066					100.0		%				$	8,862,366					100.0		%				$	9,213,540					100.0		%

(1)The category “Worldwide (excluding U.S.)” consists of contracts that cover more than one geographic region (other than the U.S.).

X

- Definition

Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries.

+ References

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-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
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- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

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