Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues
Gross premiums written	$ 2,790,261	$ 2,942,964
Net premiums written	2,263,703	2,165,217
Decrease (increase) in unearned premiums	(583,153)	(678,792)
Net premiums earned	1,680,550	1,486,425
Net investment income	254,378	83,691
Net foreign exchange gains (losses)	(14,503)	(15,486)
Equity in earnings (losses) of other ventures	9,530	(6,390)
Other income (loss)	(4,306)	1,193
Net realized and unrealized gains (losses) on investments	279,451	(673,017)
Total revenues	2,205,100	876,416
Expenses
Net claims and claim expenses incurred	801,200	841,733
Acquisition expenses	432,257	376,507
Operational expenses	77,474	67,907
Corporate expenses	12,843	12,502
Interest expense	12,134	11,955
Total expenses	1,335,908	1,310,604
Income (loss) before taxes	869,192	(434,188)
Income tax benefit (expense)	(28,902)	36,707
Net income (loss)	840,290	(397,481)
Net (income) loss attributable to redeemable noncontrolling interests	(267,384)	11,912
Net income (loss) attributable to RenaissanceRe	572,906	(385,569)
Dividends on preference shares	(8,844)	(8,844)
Net income (loss) available (attributable) to RenaissanceRe common shareholders	$ 564,062	$ (394,413)
Net income (loss) available (attributable) to RenaissanceRe common shareholders per common share – basic (in dollars per share)	$ 12.95	$ (9.10)
Net income (loss) available (attributable) to RenaissanceRe common shareholders per common share – diluted (in dollars per share)	12.91	(9.10)
Dividends per common share (in dollars per share)	$ 0.38	$ 0.37