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Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries (Condensed Consolidating Statement of Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | $ 90,996 | $ 162,426 | $ 304,096 | $ 361,792
Change in net unrealized gains on investments | (349) | (45) | (423) | (213)
Comprehensive income | 90,647 | 162,381 | 303,673 | 361,579
Net income attributable to noncontrolling interests | (12,167) | (36,078) | (51,829) | (78,846)
Comprehensive income attributable to noncontrolling interests | (12,167) | (36,078) | (51,829) | (78,846)
Comprehensive income attributable to RenaissanceRe | 78,480 | 126,303 | 251,844 | 282,733
RenaissanceRe Holdings Ltd. (Parent Guarantor) |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | 78,829 | 126,348 | 252,267 | 282,946
Change in net unrealized gains on investments | 0 | 0 | 0 | 0
Comprehensive income | 78,829 | 126,348 | 252,267 | 282,946
Net income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to RenaissanceRe | 78,829 | 126,348 | 252,267 | 282,946
Platinum Underwriters Holdings, Ltd. |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | (2,220) |  | (21,780) |
Change in net unrealized gains on investments | 0 |  | 0 |
Comprehensive income | (2,220) |  | (21,780) |
Net income attributable to noncontrolling interests | 0 |  | 0 |
Comprehensive income attributable to noncontrolling interests | 0 |  | 0 |
Comprehensive income attributable to RenaissanceRe | (2,220) |  | (21,780) |
RenRe North America Holdings Inc. |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | (2,578) | (650) | 40,958 | (3,840)
Change in net unrealized gains on investments | 0 | 0 | 0 | 0
Comprehensive income | (2,578) | (650) | 40,958 | (3,840)
Net income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to RenaissanceRe | (2,578) | (650) | 40,958 | (3,840)
Platinum Underwriters Finance, Inc. |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | (2,443) |  | (5,656) |
Change in net unrealized gains on investments | 0 |  | 0 |
Comprehensive income | (2,443) |  | (5,656) |
Net income attributable to noncontrolling interests | 0 |  | 0 |
Comprehensive income attributable to noncontrolling interests | 0 |  | 0 |
Comprehensive income attributable to RenaissanceRe | (2,443) |  | (5,656) |
RenaissanceRe Finance, Inc. |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | (3,954) |  | (7,289) |
Change in net unrealized gains on investments | 0 |  | 0 |
Comprehensive income | (3,954) |  | (7,289) |
Net income attributable to noncontrolling interests | 0 |  | 0 |
Comprehensive income attributable to noncontrolling interests | 0 |  | 0 |
Comprehensive income attributable to RenaissanceRe | (3,954) |  | (7,289) |
Other RenaissanceRe Holdings Ltd. Subsidiaries And Eliminations (Non-Guarantor Subsidiaries) |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | 83,180 | 165,181 | 312,352 | 372,051
Change in net unrealized gains on investments | (349) | (45) | (423) | (213)
Comprehensive income | 82,831 | 165,136 | 311,929 | 371,838
Net income attributable to noncontrolling interests | (12,167) | (36,078) | (51,829) | (78,846)
Comprehensive income attributable to noncontrolling interests | (12,167) | (36,078) | (51,829) | (78,846)
Comprehensive income attributable to RenaissanceRe | 70,664 | 129,058 | 260,100 | 292,992
Consolidating Adjustments |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | (59,818) | (128,453) | (266,756) | (289,365)
Change in net unrealized gains on investments | 0 | 0 | 0 | 0
Comprehensive income | (59,818) | (128,453) | (266,756) | (289,365)
Net income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to RenaissanceRe | $ (59,818) | $ (128,453) | $ (266,756) | $ (289,365)

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