Shareholders' Equity	3 Months Ended
Mar. 31, 2018
Stockholders' Equity Note [Abstract]
Shareholders' Equity	SHAREHOLDERS’ EQUITY Dividends The Board of Directors of RenaissanceRe declared a dividend of $0.33 per common share, payable on March 29, 2018 to common shareholders of record on March 15, 2018 and, accordingly, RenaissanceRe paid the dividend on March 29, 2018. The Board of Directors approved the payment of quarterly dividends on the Series C 6.08% Preference Shares and Series E 5.375% Preference Shares to preference shareholders of record in the amounts and on the quarterly record dates and dividend payment dates set forth in the prospectus supplement and Certificate of Designation for the applicable series of preference shares, unless and until further action is taken by the Board of Directors. The dividend payment dates for the preference shares will be the first day of March, June, September and December of each year (or if this date is not a business day, on the business day immediately following this date). The record dates for the preference share dividends are one day prior to the dividend payment dates. The amount of the dividend on the Series C 6.08% Preference Shares is an amount per share equal to 6.08% of the liquidation preference per annum (the equivalent to $1.52 per share per annum, or $0.38 per share per quarter). The amount of the dividend on the Series E 5.375% Preference Shares is an amount per share equal to 5.375% of the liquidation preference per annum (the equivalent to $1.34375 per share per annum, or $0.3359375 per share per quarter). During the three months ended March 31, 2018, the Company paid $5.6 million in preference share dividends (2017 - $5.6 million) and $13.2 million in common share dividends (2017 - $13.0 million). Share Repurchases The Company’s share repurchase program may be effected from time to time, depending on market conditions and other factors, through open market purchases and privately negotiated transactions. On November 10, 2017, RenaissanceRe’s Board of Directors approved a renewal of its authorized share repurchase program for an aggregate amount of up to $500.0 million. Unless terminated earlier by RenaissanceRe’s Board of Directors, the program will expire when the Company has repurchased the full value of the common shares authorized. The Company’s decision to repurchase common shares will depend on, among other matters, the market price of the common shares and the capital requirements of the Company. During the three months ended March 31, 2018, the Company’s did not repurchase any of its common shares. At March 31, 2018, $500.0 million remained available for repurchase under the share repurchase program.

SHAREHOLDERS’ EQUITY

Dividends

The Board of Directors of RenaissanceRe declared a dividend of $0.33 per common share, payable on March 29, 2018 to common shareholders of record on March 15, 2018 and, accordingly, RenaissanceRe paid the dividend on March 29, 2018.

The Board of Directors approved the payment of quarterly dividends on the Series C 6.08% Preference Shares and Series E 5.375% Preference Shares to preference shareholders of record in the amounts and on the quarterly record dates and dividend payment dates set forth in the prospectus supplement and Certificate of Designation for the applicable series of preference shares, unless and until further action is taken by the Board of Directors. The dividend payment dates for the preference shares will be the first day of March, June, September and December of each year (or if this date is not a business day, on the business day immediately following this date). The record dates for the preference share dividends are one day prior to the dividend payment dates. The amount of the dividend on the Series C 6.08% Preference Shares is an amount per share equal to 6.08% of the liquidation preference per annum (the equivalent to $1.52 per share per annum, or $0.38 per share per quarter). The amount of the dividend on the Series E 5.375% Preference Shares is an amount per share equal to 5.375% of the liquidation preference per annum (the equivalent to $1.34375 per share per annum, or $0.3359375 per share per quarter).

During the three months ended March 31, 2018, the Company paid $5.6 million in preference share dividends (2017 - $5.6 million) and $13.2 million in common share dividends (2017 - $13.0 million).

Share Repurchases

The Company’s share repurchase program may be effected from time to time, depending on market conditions and other factors, through open market purchases and privately negotiated transactions. On November 10, 2017, RenaissanceRe’s Board of Directors approved a renewal of its authorized share repurchase program for an aggregate amount of up to $500.0 million. Unless terminated earlier by RenaissanceRe’s Board of Directors, the program will expire when the Company has repurchased the full value of the common shares authorized. The Company’s decision to repurchase common shares will depend on, among other matters, the market price of the common shares and the capital requirements of the Company. During the three months ended March 31, 2018, the Company’s did not repurchase any of its common shares. At March 31, 2018, $500.0 million remained available for repurchase under the share repurchase program.