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Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries (Condensed Consolidating Statement of Comprehensive Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | $ 125,869 | $ 112,277 | $ 90,996 | $ 213,100 | $ 220,577 | $ 103,887 | $ 162,426 | $ 199,366 | $ 542,242 | $ 686,256 | $ 841,768
Change in net unrealized gains on investments |  |  |  |  |  |  |  |  | (1,308) | (715) | (9,491)
Comprehensive income |  |  |  |  |  |  |  |  | 540,934 | 685,541 | 832,277
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | (111,050) | (153,538) | (151,144)
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | (111,050) | (153,538) | (151,144)
Comprehensive income attributable to RenaissanceRe |  |  |  |  |  |  |  |  | 429,884 | 532,003 | 681,133
RenaissanceRe Holdings Ltd. (Parent Guarantor) |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  | 431,192 | 532,718 | 690,624
Change in net unrealized gains on investments |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income |  |  |  |  |  |  |  |  | 431,192 | 532,718 | 690,624
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income attributable to RenaissanceRe |  |  |  |  |  |  |  |  | 431,192 | 532,718 | 690,624
RenRe North America Holdings Inc. (Subsidiary Issuer) |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  | 27,209 | (327) | (23,853)
Change in net unrealized gains on investments |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income |  |  |  |  |  |  |  |  | 27,209 | (327) | (23,853)
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income attributable to RenaissanceRe |  |  |  |  |  |  |  |  | 27,209 | (327) | (23,853)
Platinum Underwriters Finance, Inc. (Subsidiary Issuer) |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  | 33,849 |  |
Change in net unrealized gains on investments |  |  |  |  |  |  |  |  | 0 |  |
Comprehensive income |  |  |  |  |  |  |  |  | 33,849 |  |
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 |  |
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 |  |
Comprehensive income attributable to RenaissanceRe |  |  |  |  |  |  |  |  | 33,849 |  |
RenaissanceRe Finance, Inc. (Subsidiary Issuer) |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  | 61,429 |  |
Change in net unrealized gains on investments |  |  |  |  |  |  |  |  | 0 |  |
Comprehensive income |  |  |  |  |  |  |  |  | 61,429 |  |
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 |  |
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 |  |
Comprehensive income attributable to RenaissanceRe |  |  |  |  |  |  |  |  | 61,429 |  |
Other RenaissanceRe Holdings Ltd. Subsidiaries And Eliminations (Non-Guarantor Subsidiaries) |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  | 579,273 | 709,600 | 894,031
Change in net unrealized gains on investments |  |  |  |  |  |  |  |  | (1,308) | (715) | (9,491)
Comprehensive income |  |  |  |  |  |  |  |  | 577,965 | 708,885 | 884,540
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | (111,050) | (153,538) | (151,144)
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | (111,050) | (153,538) | (151,144)
Comprehensive income attributable to RenaissanceRe |  |  |  |  |  |  |  |  | 466,915 | 555,347 | 733,396
Consolidating Adjustments |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  | (590,710) | (555,735) | (719,034)
Change in net unrealized gains on investments |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income |  |  |  |  |  |  |  |  | (590,710) | (555,735) | (719,034)
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income attributable to RenaissanceRe |  |  |  |  |  |  |  |  | $ (590,710) | $ (555,735) | $ (719,034)

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