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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
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Sep. 30, 2019 | Sep. 30, 2018
Cash flows (used in) provided by operating activities |  |
Net cash (used in) provided by operating activities | $ 1,264,432 | $ 888,526
Cash flows used in investing activities |  |
Proceeds from sales and maturities of fixed maturity investments trading | 12,835,916 | 8,221,481
Purchases of fixed maturity investments trading | (13,403,711) | (8,692,688)
Net purchases of equity investments trading | (6,937) | 15,490
Net purchases of short term investments | (1,362,151) | (1,465,451)
Net purchases of other investments | (130,476) | (130,649)
Net purchases of investments in other ventures | (2,341) | (20,952)
Return of investment from investment in other ventures | 11,250 | 8,464
Net purchase of other assets | (4,108) | 0
Dividends and return of capital from subsidiaries | 0 | 0
Contributions to subsidiaries | 0 | 0
Due (from) to subsidiary | 0 | 0
Net purchase of the TMR Group Entities | (276,206) | 0
Net cash used in investing activities | (2,338,764) | (2,064,305)
Cash flows provided by financing activities |  |
Dividends paid – RenaissanceRe common shares | (44,547) | (39,611)
Dividends paid – preference shares | (27,567) | (20,899)
Issuance of debt, net of expenses | 396,411 | 0
Issuance of preference shares, net of expenses | 0 | 242,371
Net third party redeemable noncontrolling interest share transactions | 515,952 | 96,021
Taxes paid on withholding shares | (7,229) | (7,079)
Net cash provided by financing activities | 833,020 | 270,803
Effect of exchange rate changes on foreign currency cash | 4,641 | (3,575)
Net decrease in cash and cash equivalents | (236,671) | (908,551)
Cash and cash equivalents, beginning of period | 1,107,922 | 1,361,592
Cash and cash equivalents, end of period | 871,251 | 453,041
Reportable Legal Entities | RenRe North America Holdings Inc. (Subsidiary Issuer) |  |
Cash flows (used in) provided by operating activities |  |
Net cash (used in) provided by operating activities | 1,316 | 1,496
Cash flows used in investing activities |  |
Proceeds from sales and maturities of fixed maturity investments trading | 51,669 | 91,118
Purchases of fixed maturity investments trading | (50,549) | (65,988)
Net purchases of equity investments trading | (2,476) | (624)
Net purchases of short term investments | 506 | 360
Net purchases of other investments | 0 | 0
Net purchases of investments in other ventures | 0 | 0
Return of investment from investment in other ventures | 0 | 0
Net purchase of other assets | 0 |
Dividends and return of capital from subsidiaries | 0 | 0
Contributions to subsidiaries |  | (16,847)
Contributions to subsidiaries | 0 |
Due (from) to subsidiary | (125) | (9,598)
Net purchase of the TMR Group Entities | 0 |
Net cash used in investing activities | (975) | (1,579)
Cash flows provided by financing activities |  |
Dividends paid – RenaissanceRe common shares | 0 | 0
Dividends paid – preference shares | 0 | 0
Issuance of debt, net of expenses | 0 |
Issuance of preference shares, net of expenses |  | 0
Net third party redeemable noncontrolling interest share transactions | 0 | 0
Taxes paid on withholding shares | 0 | 0
Net cash provided by financing activities | 0 | 0
Effect of exchange rate changes on foreign currency cash | 0 | 0
Net decrease in cash and cash equivalents | 341 | (83)
Cash and cash equivalents, beginning of period | 3,350 | 139
Cash and cash equivalents, end of period | 3,691 | 56
Reportable Legal Entities | RenaissanceRe Finance Inc. (Subsidiary Issuer) |  |
Cash flows (used in) provided by operating activities |  |
Net cash (used in) provided by operating activities | (30,943) | 16,194
Cash flows used in investing activities |  |
Proceeds from sales and maturities of fixed maturity investments trading | 43,746 | 45,459
Purchases of fixed maturity investments trading | (15,910) | (20,806)
Net purchases of equity investments trading | 0 | 0
Net purchases of short term investments | (16,257) | (9,206)
Net purchases of other investments | 0 | 0
Net purchases of investments in other ventures | 0 | 0
Return of investment from investment in other ventures | 0 | 0
Net purchase of other assets | 0 |
Dividends and return of capital from subsidiaries | 13,500 | 0
Contributions to subsidiaries |  | (65,000)
Contributions to subsidiaries | 0 |
Due (from) to subsidiary | (416) | 36,262
Net purchase of the TMR Group Entities | 0 |
Net cash used in investing activities | 24,663 | (13,291)
Cash flows provided by financing activities |  |
Dividends paid – RenaissanceRe common shares | 0 | 0
Dividends paid – preference shares | 0 | 0
Issuance of debt, net of expenses | 0 |
Issuance of preference shares, net of expenses |  | 0
Net third party redeemable noncontrolling interest share transactions | 0 | 0
Taxes paid on withholding shares | 0 | 0
Net cash provided by financing activities | 0 | 0
Effect of exchange rate changes on foreign currency cash | 0 | 0
Net decrease in cash and cash equivalents | (6,280) | 2,903
Cash and cash equivalents, beginning of period | 9,604 | 1,469
Cash and cash equivalents, end of period | 3,324 | 4,372
Reportable Legal Entities | RenaissanceRe Holdings Ltd. (Parent Guarantor) |  |
Cash flows (used in) provided by operating activities |  |
Net cash (used in) provided by operating activities | (381,508) | (5,869)
Cash flows used in investing activities |  |
Proceeds from sales and maturities of fixed maturity investments trading | 277,030 | 384,818
Purchases of fixed maturity investments trading | (66,740) | (281,994)
Net purchases of equity investments trading | 0 | 0
Net purchases of short term investments | (34,209) | 85,598
Net purchases of other investments | 0 | 0
Net purchases of investments in other ventures | 0 | 0
Return of investment from investment in other ventures | 0 | 0
Net purchase of other assets | 0 |
Dividends and return of capital from subsidiaries | 855,396 | 511,098
Contributions to subsidiaries | (1,013,916) | (686,106)
Due (from) to subsidiary | 48,444 | (193,249)
Net purchase of the TMR Group Entities | 0 |
Net cash used in investing activities | 66,005 | (179,835)
Cash flows provided by financing activities |  |
Dividends paid – RenaissanceRe common shares | (44,547) | (39,611)
Dividends paid – preference shares | (27,567) | (20,899)
Issuance of debt, net of expenses | 396,411 |
Issuance of preference shares, net of expenses |  | 242,371
Net third party redeemable noncontrolling interest share transactions | 0 | 0
Taxes paid on withholding shares | (7,229) | (7,079)
Net cash provided by financing activities | 317,068 | 174,782
Effect of exchange rate changes on foreign currency cash | 0 | 0
Net decrease in cash and cash equivalents | 1,565 | (10,922)
Cash and cash equivalents, beginning of period | 3,534 | 14,656
Cash and cash equivalents, end of period | 5,099 | 3,734
Reportable Legal Entities | Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-Guarantor Subsidiaries) |  |
Cash flows (used in) provided by operating activities |  |
Net cash (used in) provided by operating activities | 1,675,567 | 876,705
Cash flows used in investing activities |  |
Proceeds from sales and maturities of fixed maturity investments trading | 12,463,471 | 7,700,086
Purchases of fixed maturity investments trading | (13,270,512) | (8,323,900)
Net purchases of equity investments trading | (4,461) | 16,114
Net purchases of short term investments | (1,312,191) | (1,542,203)
Net purchases of other investments | (130,476) | (130,649)
Net purchases of investments in other ventures | (2,341) | (20,952)
Return of investment from investment in other ventures | 11,250 | 8,464
Net purchase of other assets | (4,108) |
Dividends and return of capital from subsidiaries | (868,896) | (511,098)
Contributions to subsidiaries | 1,013,916 | 767,953
Due (from) to subsidiary | (47,903) | 166,585
Net purchase of the TMR Group Entities | (276,206) |
Net cash used in investing activities | (2,428,457) | (1,869,600)
Cash flows provided by financing activities |  |
Dividends paid – RenaissanceRe common shares | 0 | 0
Dividends paid – preference shares | 0 | 0
Issuance of debt, net of expenses | 0 |
Issuance of preference shares, net of expenses |  | 0
Net third party redeemable noncontrolling interest share transactions | 515,952 | 96,021
Taxes paid on withholding shares | 0 | 0
Net cash provided by financing activities | 515,952 | 96,021
Effect of exchange rate changes on foreign currency cash | 4,641 | (3,575)
Net decrease in cash and cash equivalents | (232,297) | (900,449)
Cash and cash equivalents, beginning of period | 1,091,434 | 1,345,328
Cash and cash equivalents, end of period | $ 859,137 | $ 444,879

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- Definition Amount of cash inflow (outflow) from sales and purchases of trading securities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3098-108585 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition The cash inflow associated with the sale, maturities, repayments and calls of securities classified as trading securities and held for investment purposes. Excludes proceeds from trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time). + References No definition available. + Details
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