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Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries (Condensed Consolidating Statement Of Cash Flows) (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015
Cash flows (used in) provided by operating activities |  |  |
Net cash provided by (used in) operating activities | $ 370,003 | $ 162,147 |
Cash flows provided by (used in) investing activities |  |  |
Proceeds from sales and maturities of fixed maturity investments trading | 6,509,019 | 6,956,729 |
Purchases of fixed maturity investments trading | (6,744,838) | (7,194,793) |
Proceeds from sales and maturities of fixed maturity investments available for sale | 5,931 | 6,741 |
Net sales (purchases) of equity investments trading | 183,112 | (153,452) |
Net sales of short term investments | 128,869 | 896,027 |
Net (purchases) sales of other investments | (56,765) | 7,033 |
Net purchases of investments in other ventures | 0 | (45) |
Net sales of other assets | 400 | 4,500 |
Dividends and return of capital from subsidiaries | 0 | 0 |
Contributions to subsidiaries | 0 | 0 |
Due (from) to subsidiary | 0 | 0 |
Net purchase of Platinum | 0 | (678,152) |
Net cash provided by (used in) investing activities | 25,728 | (155,412) |
Cash flows (used in) provided by financing activities |  |  |
Dividends paid – RenaissanceRe common shares | (38,886) | (40,883) |
Dividends paid – preference shares | (16,786) | (16,786) |
RenaissanceRe common share repurchases | (309,434) | (197,350) |
Net issuance of debt | 0 | 445,589 |
Net third party redeemable noncontrolling interest share transactions | (45,496) | (187,339) |
Net cash (used in) provided by financing activities | (410,602) | 3,231 |
Effect of exchange rate changes on foreign currency cash | 1,316 | (11,004) |
Net decrease in cash and cash equivalents | (13,555) | (1,038) |
Cash and cash equivalents, beginning of period | 506,885 | 525,584 | $ 525,584
Cash and cash equivalents, end of period | 493,330 | 524,546 | 506,885
RenaissanceRe Holdings Ltd. (Parent Guarantor) |  |  |
Cash flows provided by (used in) investing activities |  |  |
Net sales of other assets | 0 |  |
RenRe North America Holdings Inc. (Subsidiary Issuer) |  |  |
Cash flows provided by (used in) investing activities |  |  |
Net sales of other assets | 0 |  |
Platinum Underwriters Finance, Inc. (Subsidiary Issuer) |  |  |
Cash flows provided by (used in) investing activities |  |  |
Net sales of other assets | 0 |  |
RenaissanceRe Finance, Inc. (Subsidiary Issuer) |  |  |
Cash flows provided by (used in) investing activities |  |  |
Net sales of other assets | 0 |  |
Reportable Legal Entities | RenaissanceRe Holdings Ltd. (Parent Guarantor) |  |  |
Cash flows (used in) provided by operating activities |  |  |
Net cash provided by (used in) operating activities | (7,644) | (34,806) |
Cash flows provided by (used in) investing activities |  |  |
Proceeds from sales and maturities of fixed maturity investments trading | 272,710 | 39,429 |
Purchases of fixed maturity investments trading | (336,345) | (119,725) |
Proceeds from sales and maturities of fixed maturity investments available for sale | 0 | 0 |
Net sales (purchases) of equity investments trading | 0 | 0 |
Net sales of short term investments | 122,656 | 26,847 |
Net (purchases) sales of other investments | 0 | 0 |
Net purchases of investments in other ventures |  | 0 |
Net sales of other assets |  | 0 |
Dividends and return of capital from subsidiaries | 408,189 | 1,260,632 |
Contributions to subsidiaries | (91,001) | (287,889) |
Due (from) to subsidiary | (3,497) | 281,726 |
Net purchase of Platinum |  | (904,433) |
Net cash provided by (used in) investing activities | 372,712 | 296,587 |
Cash flows (used in) provided by financing activities |  |  |
Dividends paid – RenaissanceRe common shares | (38,886) | (40,883) |
Dividends paid – preference shares | (16,786) | (16,786) |
RenaissanceRe common share repurchases | (309,434) | (197,350) |
Net issuance of debt |  | 0 |
Net third party redeemable noncontrolling interest share transactions | 0 | 0 |
Net cash (used in) provided by financing activities | (365,106) | (255,019) |
Effect of exchange rate changes on foreign currency cash | 0 | 0 |
Net decrease in cash and cash equivalents | (38) | 6,762 |
Cash and cash equivalents, beginning of period | 10,185 | 5,986 | 5,986
Cash and cash equivalents, end of period | 10,147 | 12,748 | 10,185
Reportable Legal Entities | RenRe North America Holdings Inc. (Subsidiary Issuer) |  |  |
Cash flows (used in) provided by operating activities |  |  |
Net cash provided by (used in) operating activities | 1,847 | (2,814) |
Cash flows provided by (used in) investing activities |  |  |
Proceeds from sales and maturities of fixed maturity investments trading | 62,959 | 29,074 |
Purchases of fixed maturity investments trading | (115,849) | (42,840) |
Proceeds from sales and maturities of fixed maturity investments available for sale | 0 | 0 |
Net sales (purchases) of equity investments trading | (2,392) | 33,682 |
Net sales of short term investments | 67,986 | 1,133 |
Net (purchases) sales of other investments | 0 | 0 |
Net purchases of investments in other ventures |  | 0 |
Net sales of other assets |  | 0 |
Dividends and return of capital from subsidiaries | 2,900 | 180,000 |
Contributions to subsidiaries | 0 | (13,850) |
Due (from) to subsidiary | (22,502) | (183,621) |
Net purchase of Platinum |  | 0 |
Net cash provided by (used in) investing activities | (6,898) | 3,578 |
Cash flows (used in) provided by financing activities |  |  |
Dividends paid – RenaissanceRe common shares | 0 | 0 |
Dividends paid – preference shares | 0 | 0 |
RenaissanceRe common share repurchases | 0 | 0 |
Net issuance of debt |  | 0 |
Net third party redeemable noncontrolling interest share transactions | 0 | 0 |
Net cash (used in) provided by financing activities | 0 | 0 |
Effect of exchange rate changes on foreign currency cash | 0 | 0 |
Net decrease in cash and cash equivalents | (5,051) | 764 |
Cash and cash equivalents, beginning of period | 5,908 | 1,033 | 1,033
Cash and cash equivalents, end of period | 857 | 1,797 | 5,908
Reportable Legal Entities | Platinum Underwriters Finance, Inc. (Subsidiary Issuer) |  |  |
Cash flows (used in) provided by operating activities |  |  |
Net cash provided by (used in) operating activities | (11,062) | (7,564) |
Cash flows provided by (used in) investing activities |  |  |
Proceeds from sales and maturities of fixed maturity investments trading | 113,947 | 45,087 |
Purchases of fixed maturity investments trading | (259,165) | 0 |
Proceeds from sales and maturities of fixed maturity investments available for sale | 0 | 0 |
Net sales (purchases) of equity investments trading | 192,911 | (274,567) |
Net sales of short term investments | (41,881) | 236,548 |
Net (purchases) sales of other investments | 0 | 0 |
Net purchases of investments in other ventures |  | 0 |
Net sales of other assets |  | 0 |
Dividends and return of capital from subsidiaries | 0 | 0 |
Contributions to subsidiaries | 0 | 0 |
Due (from) to subsidiary | (108) | 20 |
Net purchase of Platinum |  | 1,537 |
Net cash provided by (used in) investing activities | 5,704 | 8,625 |
Cash flows (used in) provided by financing activities |  |  |
Dividends paid – RenaissanceRe common shares | 0 | 0 |
Dividends paid – preference shares | 0 | 0 |
RenaissanceRe common share repurchases | 0 | 0 |
Net issuance of debt |  | 0 |
Net third party redeemable noncontrolling interest share transactions | 0 | 0 |
Net cash (used in) provided by financing activities | 0 | 0 |
Effect of exchange rate changes on foreign currency cash | 0 | 0 |
Net decrease in cash and cash equivalents | (5,358) | 1,061 |
Cash and cash equivalents, beginning of period | 7,103 | 0 | 0
Cash and cash equivalents, end of period | 1,745 | 1,061 | 7,103
Reportable Legal Entities | RenaissanceRe Finance, Inc. (Subsidiary Issuer) |  |  |
Cash flows (used in) provided by operating activities |  |  |
Net cash provided by (used in) operating activities | (35,171) | (11,756) |
Cash flows provided by (used in) investing activities |  |  |
Proceeds from sales and maturities of fixed maturity investments trading | 0 | 0 |
Purchases of fixed maturity investments trading | 0 | 0 |
Proceeds from sales and maturities of fixed maturity investments available for sale | 0 | 0 |
Net sales (purchases) of equity investments trading | 0 | 0 |
Net sales of short term investments | 0 | 0 |
Net (purchases) sales of other investments | 0 | 0 |
Net purchases of investments in other ventures |  | 0 |
Net sales of other assets |  | 0 |
Dividends and return of capital from subsidiaries | 9,300 | 20,800 |
Contributions to subsidiaries | 0 | (185,000) |
Due (from) to subsidiary | 27,724 | (116,709) |
Net purchase of Platinum |  | 0 |
Net cash provided by (used in) investing activities | 37,024 | (280,909) |
Cash flows (used in) provided by financing activities |  |  |
Dividends paid – RenaissanceRe common shares | 0 | 0 |
Dividends paid – preference shares | 0 | 0 |
RenaissanceRe common share repurchases | 0 | 0 |
Net issuance of debt |  | 299,400 |
Net third party redeemable noncontrolling interest share transactions | 0 | 0 |
Net cash (used in) provided by financing activities | 0 | 299,400 |
Effect of exchange rate changes on foreign currency cash | 0 | 0 |
Net decrease in cash and cash equivalents | 1,853 | 6,735 |
Cash and cash equivalents, beginning of period | 677 | 0 | 0
Cash and cash equivalents, end of period | 2,530 | 6,735 | 677
Reportable Legal Entities | Other RenaissanceRe Holdings Ltd. Subsidiaries And Eliminations (Non-Guarantor Subsidiaries) |  |  |
Cash flows (used in) provided by operating activities |  |  |
Net cash provided by (used in) operating activities | 422,033 | 219,087 |
Cash flows provided by (used in) investing activities |  |  |
Proceeds from sales and maturities of fixed maturity investments trading | 6,059,403 | 6,843,139 |
Purchases of fixed maturity investments trading | (6,033,479) | (7,032,228) |
Proceeds from sales and maturities of fixed maturity investments available for sale | 5,931 | 6,741 |
Net sales (purchases) of equity investments trading | (7,407) | 87,433 |
Net sales of short term investments | (19,892) | 631,499 |
Net (purchases) sales of other investments | (56,765) | 7,033 |
Net purchases of investments in other ventures |  | (45) |
Net sales of other assets | 400 | 4,500 |
Dividends and return of capital from subsidiaries | (420,389) | (1,461,432) |
Contributions to subsidiaries | 91,001 | 486,739 |
Due (from) to subsidiary | (1,617) | 18,584 |
Net purchase of Platinum |  | 224,744 |
Net cash provided by (used in) investing activities | (382,814) | (183,293) |
Cash flows (used in) provided by financing activities |  |  |
Dividends paid – RenaissanceRe common shares | 0 | 0 |
Dividends paid – preference shares | 0 | 0 |
RenaissanceRe common share repurchases | 0 | 0 |
Net issuance of debt |  | 146,189 |
Net third party redeemable noncontrolling interest share transactions | (45,496) | (187,339) |
Net cash (used in) provided by financing activities | (45,496) | (41,150) |
Effect of exchange rate changes on foreign currency cash | 1,316 | (11,004) |
Net decrease in cash and cash equivalents | (4,961) | (16,360) |
Cash and cash equivalents, beginning of period | 483,012 | 518,565 | 518,565
Cash and cash equivalents, end of period | $ 478,051 | $ 502,205 | $ 483,012

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