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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 | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Revenues |  |  |  |
Net premiums earned | $ 382,265 | $ 351,402 | $ 748,310 | $ 705,008
Net investment income | 54,163 | 54,124 | 108,488 | 82,987
Net foreign exchange gains (losses) | 3,109 | (690) | 11,274 | (2,382)
Equity in earnings of other ventures | 5,543 | 6,022 | 4,036 | 7,633
Other income (loss) | 2,392 | 2,654 | 4,057 | 6,733
Net realized and unrealized gains (losses) on investments | 58,113 | 69,772 | 101,486 | 131,425
Total revenues | 505,585 | 483,284 | 977,651 | 931,404
Expenses |  |  |  |
Net claims and claim expenses incurred | 142,587 | 167,750 | 335,668 | 294,355
Acquisition expenses | 88,251 | 69,005 | 171,533 | 134,597
Operational expenses | 41,766 | 51,073 | 89,049 | 107,308
Corporate expenses | 4,636 | 5,752 | 9,922 | 13,977
Interest expense | 10,091 | 10,536 | 20,617 | 21,074
Total expenses | 287,331 | 304,116 | 626,789 | 571,311
(Loss) income before equity in net income (loss) of subsidiaries and taxes | 218,254 | 179,168 | 350,862 | 360,093
Equity in net income (loss) of subsidiaries | 0 | 0 | 0 | 0
Income before taxes | 218,254 | 179,168 | 350,862 | 360,093
Income tax expense | (3,904) | (6,612) | (4,238) | (9,356)
Net income | 214,350 | 172,556 | 346,624 | 350,737
Net income attributable to noncontrolling interests | (37,612) | (30,635) | (71,939) | (75,226)
Net income attributable to RenaissanceRe | 176,738 | 141,921 | 274,685 | 275,511
Dividends on preference shares | (5,596) | (5,596) | (11,191) | (11,191)
Net income available to RenaissanceRe common shareholders | 171,142 | 136,325 | 263,494 | 264,320
Reportable Legal Entities | RenRe North America Holdings Inc. (Subsidiary Issuer) |  |  |  |
Revenues |  |  |  |
Net premiums earned | 0 | 0 | 0 | 0
Net investment income | 466 | 445 | 892 | 954
Net foreign exchange gains (losses) | 0 | 0 | 0 | 0
Equity in earnings of other ventures | 0 | 0 | 0 | 0
Other income (loss) | 0 | 0 | 0 | 0
Net realized and unrealized gains (losses) on investments | 1,421 | 1,139 | 4,342 | 2,254
Total revenues | 1,887 | 1,584 | 5,234 | 3,208
Expenses |  |  |  |
Net claims and claim expenses incurred | 0 | 0 | 0 | 0
Acquisition expenses | 0 | 0 | 0 | 0
Operational expenses | 16 | 44 | 40 | (97)
Corporate expenses | 0 | 203 | 0 | 203
Interest expense | 0 | 0 | 0 | 0
Total expenses | 16 | 247 | 40 | 106
(Loss) income before equity in net income (loss) of subsidiaries and taxes | 1,871 | 1,337 | 5,194 | 3,102
Equity in net income (loss) of subsidiaries | 1,220 | 1,666 | 2,306 | 1,533
Income before taxes | 3,091 | 3,003 | 7,500 | 4,635
Income tax expense | (584) | (906) | (1,682) | (1,467)
Net income | 2,507 | 2,097 | 5,818 | 3,168
Net income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Net income attributable to RenaissanceRe | 2,507 | 2,097 | 5,818 | 3,168
Dividends on preference shares | 0 | 0 | 0 | 0
Net income available to RenaissanceRe common shareholders | 2,507 | 2,097 | 5,818 | 3,168
Reportable Legal Entities | Platinum Underwriters Finance, Inc. (Subsidiary Issuer) |  |  |  |
Revenues |  |  |  |
Net premiums earned | 0 | 0 | 0 | 0
Net investment income | 535 | 846 | 1,376 | 2,279
Net foreign exchange gains (losses) | 0 | 0 | 0 | 0
Equity in earnings of other ventures | 0 | 0 | 0 | 0
Other income (loss) | 0 | 0 | 0 | 0
Net realized and unrealized gains (losses) on investments | 191 | 3,414 | 4,916 | 5,378
Total revenues | 726 | 4,260 | 6,292 | 7,657
Expenses |  |  |  |
Net claims and claim expenses incurred | 0 | 0 | 0 | 0
Acquisition expenses | 0 | 0 | 0 | 0
Operational expenses | 35 | 64 | 85 | 116
Corporate expenses | 0 | 0 | 0 | 0
Interest expense | 985 | 1,477 | 2,461 | 2,953
Total expenses | 1,020 | 1,541 | 2,546 | 3,069
(Loss) income before equity in net income (loss) of subsidiaries and taxes | (294) | 2,719 | 3,746 | 4,588
Equity in net income (loss) of subsidiaries | 18,185 | 12,086 | 28,028 | 34,421
Income before taxes | 17,891 | 14,805 | 31,774 | 39,009
Income tax expense | 104 | (838) | (1,204) | (1,182)
Net income | 17,995 | 13,967 | 30,570 | 37,827
Net income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Net income attributable to RenaissanceRe | 17,995 | 13,967 | 30,570 | 37,827
Dividends on preference shares | 0 | 0 | 0 | 0
Net income available to RenaissanceRe common shareholders | 17,995 | 13,967 | 30,570 | 37,827
Reportable Legal Entities | RenaissanceRe Finance, Inc. (Subsidiary Issuer) |  |  |  |
Revenues |  |  |  |
Net premiums earned | 0 | 0 | 0 | 0
Net investment income | 239 | 141 | 508 | 281
Net foreign exchange gains (losses) | 0 | 0 | 0 | 0
Equity in earnings of other ventures | 302 | 0 | (450) | 0
Other income (loss) | 0 | 0 | 0 | 0
Net realized and unrealized gains (losses) on investments | (242) | 0 | (268) | 0
Total revenues | 299 | 141 | (210) | 281
Expenses |  |  |  |
Net claims and claim expenses incurred | 0 | 0 | 0 | 0
Acquisition expenses | 0 | 0 | 0 | 0
Operational expenses | 6,647 | 4,573 | 14,626 | 11,582
Corporate expenses | 0 | 7 | 0 | 7
Interest expense | 6,601 | 6,544 | 13,143 | 13,087
Total expenses | 13,248 | 11,124 | 27,769 | 24,676
(Loss) income before equity in net income (loss) of subsidiaries and taxes | (12,949) | (10,983) | (27,979) | (24,395)
Equity in net income (loss) of subsidiaries | 20,438 | 17,165 | 36,936 | 41,644
Income before taxes | 7,489 | 6,182 | 8,957 | 17,249
Income tax expense | 2,902 | 2,792 | 5,974 | 5,671
Net income | 10,391 | 8,974 | 14,931 | 22,920
Net income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Net income attributable to RenaissanceRe | 10,391 | 8,974 | 14,931 | 22,920
Dividends on preference shares | 0 | 0 | 0 | 0
Net income available to RenaissanceRe common shareholders | 10,391 | 8,974 | 14,931 | 22,920
Reportable Legal Entities | RenaissanceRe Holdings Ltd. (Parent Guarantor) |  |  |  |
Revenues |  |  |  |
Net premiums earned | 0 | 0 | 0 | 0
Net investment income | 5,284 | 5,749 | 10,741 | 12,607
Net foreign exchange gains (losses) | (1) | (1) | (1) | (2)
Equity in earnings of other ventures | 0 | 0 | 0 | 0
Other income (loss) | 0 | (791) | (1) | (791)
Net realized and unrealized gains (losses) on investments | (8) | 799 | 45 | 5,287
Total revenues | 5,275 | 5,756 | 10,784 | 17,101
Expenses |  |  |  |
Net claims and claim expenses incurred | 0 | 0 | 0 | 0
Acquisition expenses | 0 | 0 | 0 | 0
Operational expenses | 3,190 | (1,104) | 6,488 | (1,805)
Corporate expenses | 4,798 | 5,181 | 10,006 | 10,794
Interest expense | 141 | 141 | 281 | 281
Total expenses | 8,129 | 4,218 | 16,775 | 9,270
(Loss) income before equity in net income (loss) of subsidiaries and taxes | (2,854) | 1,538 | (5,991) | 7,831
Equity in net income (loss) of subsidiaries | 178,746 | 141,677 | 280,099 | 265,215
Income before taxes | 175,892 | 143,215 | 274,108 | 273,046
Income tax expense | 846 | (1,294) | 577 | 2,465
Net income | 176,738 | 141,921 | 274,685 | 275,511
Net income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Net income attributable to RenaissanceRe | 176,738 | 141,921 | 274,685 | 275,511
Dividends on preference shares | (5,596) | (5,596) | (11,191) | (11,191)
Net income available to RenaissanceRe common shareholders | 171,142 | 136,325 | 263,494 | 264,320
Reportable Legal Entities | Other RenaissanceRe Holdings Ltd. Subsidiaries And Eliminations (Non-Guarantor Subsidiaries) |  |  |  |
Revenues |  |  |  |
Net premiums earned | 382,265 | 351,402 | 748,310 | 705,008
Net investment income | 53,891 | 52,826 | 107,474 | 78,632
Net foreign exchange gains (losses) | 3,110 | (689) | 11,275 | (2,380)
Equity in earnings of other ventures | 5,241 | 6,022 | 4,486 | 7,633
Other income (loss) | 2,392 | 3,445 | 4,058 | 7,524
Net realized and unrealized gains (losses) on investments | 56,751 | 64,420 | 92,451 | 118,506
Total revenues | 503,650 | 477,426 | 968,054 | 914,923
Expenses |  |  |  |
Net claims and claim expenses incurred | 142,587 | 167,750 | 335,668 | 294,355
Acquisition expenses | 88,251 | 69,005 | 171,533 | 134,597
Operational expenses | 36,402 | 50,352 | 78,460 | 105,448
Corporate expenses | (162) | 361 | (84) | 2,973
Interest expense | 2,505 | 2,515 | 5,013 | 5,034
Total expenses | 269,583 | 289,983 | 590,590 | 542,407
(Loss) income before equity in net income (loss) of subsidiaries and taxes | 234,067 | 187,443 | 377,464 | 372,516
Equity in net income (loss) of subsidiaries | 0 | 0 | 0 | 0
Income before taxes | 234,067 | 187,443 | 377,464 | 372,516
Income tax expense | (7,172) | (6,366) | (7,903) | (14,843)
Net income | 226,895 | 181,077 | 369,561 | 357,673
Net income attributable to noncontrolling interests | (37,612) | (30,635) | (71,939) | (75,226)
Net income attributable to RenaissanceRe | 189,283 | 150,442 | 297,622 | 282,447
Dividends on preference shares | 0 | 0 | 0 | 0
Net income available to RenaissanceRe common shareholders | 189,283 | 150,442 | 297,622 | 282,447
Consolidating Adjustments |  |  |  |
Revenues |  |  |  |
Net premiums earned | 0 | 0 | 0 | 0
Net investment income | (6,252) | (5,883) | (12,503) | (11,766)
Net foreign exchange gains (losses) | 0 | 0 | 0 | 0
Equity in earnings of other ventures | 0 | 0 | 0 | 0
Other income (loss) | 0 | 0 | 0 | 0
Net realized and unrealized gains (losses) on investments | 0 | 0 | 0 | 0
Total revenues | (6,252) | (5,883) | (12,503) | (11,766)
Expenses |  |  |  |
Net claims and claim expenses incurred | 0 | 0 | 0 | 0
Acquisition expenses | 0 | 0 | 0 | 0
Operational expenses | (4,524) | (2,856) | (10,650) | (7,936)
Corporate expenses | 0 | 0 | 0 | 0
Interest expense | (141) | (141) | (281) | (281)
Total expenses | (4,665) | (2,997) | (10,931) | (8,217)
(Loss) income before equity in net income (loss) of subsidiaries and taxes | (1,587) | (2,886) | (1,572) | (3,549)
Equity in net income (loss) of subsidiaries | (218,589) | (172,594) | (347,369) | (342,813)
Income before taxes | (220,176) | (175,480) | (348,941) | (346,362)
Income tax expense | 0 | 0 | 0 | 0
Net income | (220,176) | (175,480) | (348,941) | (346,362)
Net income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Net income attributable to RenaissanceRe | (220,176) | (175,480) | (348,941) | (346,362)
Dividends on preference shares | 0 | 0 | 0 | 0
Net income available to RenaissanceRe common shareholders | $ (220,176) | $ (175,480) | $ (348,941) | $ (346,362)

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