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SUBSEQUENT EVENTS (Details) - USD ($)		1 Months Ended	3 Months Ended
	Apr. 01, 2025	Apr. 21, 2025	Mar. 31, 2025	Mar. 24, 2015
3.700% Senior Notes due 2025 | RenaissanceRe Finance, Inc. | Senior Notes
Subsequent Event [Line Items]
Debt instrument, interest rate, stated percentage			3.70%	3.70%
Subsequent Event | 3.700% Senior Notes due 2025 | RenaissanceRe Finance, Inc. | Senior Notes
Subsequent Event [Line Items]
Repayments of debt	$ 300,000,000.0
Debt instrument, interest rate, stated percentage	3.70%
Common Shares
Subsequent Event [Line Items]
Share repurchase program, shares repurchased (in shares)			1,491,816
Value of shares repurchased			$ 361,100,000
Shares repurchased, average price per share (in dollars per share)			$ 242.08
Common Shares | Subsequent Event
Subsequent Event [Line Items]
Share repurchase program, shares repurchased (in shares)		278,000.0
Value of shares repurchased		$ 65,300,000
Shares repurchased, average price per share (in dollars per share)		$ 234.83

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