Insider Trading Arrangements	3 Months Ended	9 Months Ended
	Sep. 30, 2023 shares	Sep. 30, 2023 shares
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		During the three months ended September 30, 2023, the following directors or officers of the Company adopted a Rule 10b5-1 trading arrangement or a non-Rule 10b5–1 trading arrangement (each as defined in Item 408 of Regulation S-K under the Securities Exchange Act of 1934, as amended): (i) on August 21, 2023, David E. Marra, Executive Vice President and Chief Underwriting Officer, adopted a trading plan intended to satisfy Rule 10b5-1(c) to sell up to 11,000 shares of RenaissanceRe common stock between November 14, 2023 and October 31, 2025, subject to certain conditions; and (ii) on August 23, 2023, Robert Qutub, Executive Vice President and Chief Financial Officer, adopted a trading plan intended to satisfy Rule 10b5-1(c) to sell up to 7,500 shares of RenaissanceRe common stock between November 21, 2023 and November 21, 2025, subject to certain conditions.
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
David E. Marra [Member]
Trading Arrangements, by Individual
Name	David E. Marra
Title	Executive Vice President and Chief Underwriting Officer
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	August 21, 2023
Arrangement Duration	717 days
Aggregate Available	11,000	11,000
Robert Qutub [Member]
Trading Arrangements, by Individual
Name	Robert Qutub
Title	Executive Vice President and Chief Financial Officer
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	August 23, 2023
Arrangement Duration	731 days
Aggregate Available	7,500	7,500