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Condensed Consolidating Financial Information Provided in Connection with Outstanding Debt of Subsidiaries (Condensed Consolidating Statement of Operations) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Revenues |  |  |  |
Net premiums earned | $ 906,748 | $ 531,849 | $ 2,368,278 | $ 1,401,516
Net investment income | 113,844 | 80,696 | 311,138 | 208,528
Net foreign exchange gains (losses) | (8,275) | (4,566) | (1,812) | (11,496)
Equity in earnings of other ventures | 5,877 | 7,648 | 17,350 | 14,331
Other income | 1,016 | 497 | 5,109 | 480
Net realized and unrealized (losses) gains on investments | 31,938 | 13,630 | 396,586 | (86,415)
Total revenues | 1,051,148 | 629,754 | 3,096,649 | 1,526,944
Expenses |  |  |  |
Net claims and claim expenses incurred | 654,520 | 410,510 | 1,334,928 | 642,380
Acquisition expenses | 202,181 | 109,761 | 553,614 | 312,524
Operational expenses | 53,415 | 40,593 | 158,162 | 119,408
Corporate expenses | 13,844 | 6,841 | 76,480 | 21,875
Interest expense | 15,580 | 11,769 | 42,868 | 35,304
Total expenses | 939,540 | 579,474 | 2,166,052 | 1,131,491
Income (loss) before equity in net income (loss) of subsidiaries and taxes | 111,608 | 50,280 | 930,597 | 395,453
Equity in net income (loss) of subsidiaries | 0 | 0 | 0 | 0
Income before taxes | 111,608 | 50,280 | 930,597 | 395,453
Income tax benefit (expense) | (3,664) | (1,451) | (20,670) | (2,550)
Net income | 107,944 | 48,829 | 909,927 | 392,903
Net income attributable to redeemable noncontrolling interests | (62,057) | (6,440) | (204,091) | (90,822)
Net income attributable to RenaissanceRe | 45,887 | 42,389 | 705,836 | 302,081
Dividends on preference shares | (9,189) | (9,708) | (27,567) | (20,899)
Net income available to RenaissanceRe common shareholders | 36,698 | 32,681 | 678,269 | 281,182
Reportable Legal Entities | RenRe North America Holdings Inc. (Subsidiary Issuer) |  |  |  |
Revenues |  |  |  |
Net premiums earned | 0 | 0 | 0 | 0
Net investment income | 570 | 539 | 1,689 | 1,629
Net foreign exchange gains (losses) | 0 | 0 | 0 | 0
Equity in earnings of other ventures | 0 | 0 | 0 | 0
Other income | 0 | 0 | 0 | 0
Net realized and unrealized (losses) gains on investments | 1,147 | 4,479 | 15,369 | 4,906
Total revenues | 1,717 | 5,018 | 17,058 | 6,535
Expenses |  |  |  |
Net claims and claim expenses incurred | 0 | 0 | 0 | 0
Acquisition expenses | 0 | 0 | 0 | 0
Operational expenses | 11 | 29 | 38 | 60
Corporate expenses | 0 | 0 | 0 | 0
Interest expense | 0 | 0 | 0 | 0
Total expenses | 11 | 29 | 38 | 60
Income (loss) before equity in net income (loss) of subsidiaries and taxes | 1,706 | 4,989 | 17,020 | 6,475
Equity in net income (loss) of subsidiaries | 1,456 | 2,735 | 4,001 | 4,285
Income before taxes | 3,162 | 7,724 | 21,021 | 10,760
Income tax benefit (expense) | (319) | (1,026) | (3,472) | (1,273)
Net income | 2,843 | 6,698 | 17,549 | 9,487
Net income attributable to redeemable noncontrolling interests | 0 | 0 | 0 | 0
Net income attributable to RenaissanceRe | 2,843 | 6,698 | 17,549 | 9,487
Dividends on preference shares | 0 | 0 | 0 | 0
Net income available to RenaissanceRe common shareholders | 2,843 | 6,698 | 17,549 | 9,487
Reportable Legal Entities | RenaissanceRe Finance Inc. (Subsidiary Issuer) |  |  |  |
Revenues |  |  |  |
Net premiums earned | 0 | 0 | 0 | 0
Net investment income | 1,906 | 1,541 | 5,983 | 3,981
Net foreign exchange gains (losses) | 0 | 0 | 0 | 0
Equity in earnings of other ventures | 1,298 | 290 | 2,915 | 2,045
Other income | 0 | 0 | 0 | 0
Net realized and unrealized (losses) gains on investments | 20 | (73) | 231 | (399)
Total revenues | 3,224 | 1,758 | 9,129 | 5,627
Expenses |  |  |  |
Net claims and claim expenses incurred | 0 | 0 | 0 | 0
Acquisition expenses | 0 | 0 | 0 | 0
Operational expenses | 9,018 | 7,493 | 29,958 | 26,737
Corporate expenses | 7 | 0 | 16 | 7
Interest expense | 9,257 | 9,257 | 27,763 | 27,763
Total expenses | 18,282 | 16,750 | 57,737 | 54,507
Income (loss) before equity in net income (loss) of subsidiaries and taxes | (15,058) | (14,992) | (48,608) | (48,880)
Equity in net income (loss) of subsidiaries | 14,365 | 11,666 | 76,552 | 29,005
Income before taxes | (693) | (3,326) | 27,944 | (19,875)
Income tax benefit (expense) | 1,562 | 1,840 | 4,956 | 5,677
Net income | 869 | (1,486) | 32,900 | (14,198)
Net income attributable to redeemable noncontrolling interests | 0 | 0 | 0 | 0
Net income attributable to RenaissanceRe | 869 | (1,486) | 32,900 | (14,198)
Dividends on preference shares | 0 | 0 | 0 | 0
Net income available to RenaissanceRe common shareholders | 869 | (1,486) | 32,900 | (14,198)
Reportable Legal Entities | RenaissanceRe Holdings Ltd. (Parent Guarantor) |  |  |  |
Revenues |  |  |  |
Net premiums earned | 0 | 0 | 0 | 0
Net investment income | 10,263 | 6,542 | 29,216 | 18,504
Net foreign exchange gains (losses) | (14,786) | 3 | (20,846) | (1)
Equity in earnings of other ventures | 0 | 0 | 0 | 0
Other income | 1,234 | 0 | 1,234 | 0
Net realized and unrealized (losses) gains on investments | 1,983 | (176) | 7,501 | (821)
Total revenues | (1,306) | 6,369 | 17,105 | 17,682
Expenses |  |  |  |
Net claims and claim expenses incurred | 0 | 0 | 0 | 0
Acquisition expenses | 0 | 0 | 0 | 0
Operational expenses | 2,039 | 3,570 | 4,643 | 7,551
Corporate expenses | 6,948 | 3,778 | 49,618 | 12,498
Interest expense | 5,708 | 1,478 | 13,284 | 3,694
Total expenses | 14,695 | 8,826 | 67,545 | 23,743
Income (loss) before equity in net income (loss) of subsidiaries and taxes | (16,001) | (2,457) | (50,440) | (6,061)
Equity in net income (loss) of subsidiaries | 61,021 | 45,130 | 754,634 | 310,081
Income before taxes | 45,020 | 42,673 | 704,194 | 304,020
Income tax benefit (expense) | 867 | (284) | 1,642 | (1,939)
Net income | 45,887 | 42,389 | 705,836 | 302,081
Net income attributable to redeemable noncontrolling interests | 0 | 0 | 0 | 0
Net income attributable to RenaissanceRe | 45,887 | 42,389 | 705,836 | 302,081
Dividends on preference shares | (9,189) | (9,708) | (27,567) | (20,899)
Net income available to RenaissanceRe common shareholders | 36,698 | 32,681 | 678,269 | 281,182
Reportable Legal Entities | Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-Guarantor Subsidiaries) |  |  |  |
Revenues |  |  |  |
Net premiums earned | 906,748 | 531,849 | 2,368,278 | 1,401,516
Net investment income | 113,705 | 80,472 | 308,001 | 208,034
Net foreign exchange gains (losses) | 6,511 | (4,569) | 19,034 | (11,495)
Equity in earnings of other ventures | 4,579 | 7,358 | 14,435 | 12,286
Other income | (218) | 497 | 3,875 | 480
Net realized and unrealized (losses) gains on investments | 28,788 | 9,400 | 373,485 | (90,101)
Total revenues | 1,060,113 | 625,007 | 3,087,108 | 1,520,720
Expenses |  |  |  |
Net claims and claim expenses incurred | 654,520 | 410,510 | 1,334,928 | 642,380
Acquisition expenses | 202,181 | 109,761 | 553,614 | 312,524
Operational expenses | 34,814 | 42,682 | 98,613 | 113,721
Corporate expenses | 5,010 | 3,063 | 21,172 | 9,370
Interest expense | 615 | 2,512 | 1,821 | 7,541
Total expenses | 897,140 | 568,528 | 2,010,148 | 1,085,536
Income (loss) before equity in net income (loss) of subsidiaries and taxes | 162,973 | 56,479 | 1,076,960 | 435,184
Equity in net income (loss) of subsidiaries | 0 | 0 | 0 | 0
Income before taxes | 162,973 | 56,479 | 1,076,960 | 435,184
Income tax benefit (expense) | (5,774) | (1,981) | (23,796) | (5,015)
Net income | 157,199 | 54,498 | 1,053,164 | 430,169
Net income attributable to redeemable noncontrolling interests | (62,057) | (6,440) | (204,091) | (90,822)
Net income attributable to RenaissanceRe | 95,142 | 48,058 | 849,073 | 339,347
Dividends on preference shares | 0 | 0 | 0 | 0
Net income available to RenaissanceRe common shareholders | 95,142 | 48,058 | 849,073 | 339,347
Consolidating Adjustments |  |  |  |
Revenues |  |  |  |
Net premiums earned | 0 | 0 | 0 | 0
Net investment income | (12,600) | (8,398) | (33,751) | (23,620)
Net foreign exchange gains (losses) | 0 | 0 | 0 | 0
Equity in earnings of other ventures | 0 | 0 | 0 | 0
Other income | 0 | 0 | 0 | 0
Net realized and unrealized (losses) gains on investments | 0 | 0 | 0 | 0
Total revenues | (12,600) | (8,398) | (33,751) | (23,620)
Expenses |  |  |  |
Net claims and claim expenses incurred | 0 | 0 | 0 | 0
Acquisition expenses | 0 | 0 | 0 | 0
Operational expenses | 7,533 | (13,181) | 24,910 | (28,661)
Corporate expenses | 1,879 | 0 | 5,674 | 0
Interest expense | 0 | (1,478) | 0 | (3,694)
Total expenses | 9,412 | (14,659) | 30,584 | (32,355)
Income (loss) before equity in net income (loss) of subsidiaries and taxes | (22,012) | 6,261 | (64,335) | 8,735
Equity in net income (loss) of subsidiaries | (76,842) | (59,531) | (835,187) | (343,371)
Income before taxes | (98,854) | (53,270) | (899,522) | (334,636)
Income tax benefit (expense) | 0 | 0 | 0 | 0
Net income | (98,854) | (53,270) | (899,522) | (334,636)
Net income attributable to redeemable noncontrolling interests | 0 | 0 | 0 | 0
Net income attributable to RenaissanceRe | (98,854) | (53,270) | (899,522) | (334,636)
Dividends on preference shares | 0 | 0 | 0 | 0
Net income available to RenaissanceRe common shareholders | $ (98,854) | $ (53,270) | $ (899,522) | $ (334,636)

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