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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 | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | $ 188,061 | $ 112,277 | $ 538,798 | $ 416,373
Change in net unrealized gains on investments | 284 | (733) | 513 | (1,156)
Comprehensive income | 188,345 | 111,544 | 539,311 | 415,217
Net income attributable to redeemable noncontrolling interests | (35,641) | (31,153) | (110,867) | (82,982)
Comprehensive income attributable to noncontrolling interests | (35,641) | (31,153) | (110,867) | (82,982)
Comprehensive income attributable to RenaissanceRe | 152,704 | 80,391 | 428,444 | 332,235
Reportable Legal Entities | RenaissanceRe Holdings Ltd. (Parent Guarantor) |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | 152,420 | 81,124 | 427,931 | 333,391
Change in net unrealized gains on investments | 0 | 0 | 0 | 0
Comprehensive income | 152,420 | 81,124 | 427,931 | 333,391
Net income attributable to redeemable noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to RenaissanceRe | 152,420 | 81,124 | 427,931 | 333,391
Reportable Legal Entities | RenRe North America Holdings Inc. (Subsidiary Issuer) |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | 2,941 | 216 | 6,109 | 29,196
Change in net unrealized gains on investments | 0 | 0 | 0 | 0
Comprehensive income | 2,941 | 216 | 6,109 | 29,196
Net income attributable to redeemable noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to RenaissanceRe | 2,941 | 216 | 6,109 | 29,196
Reportable Legal Entities | Platinum Underwriters Finance, Inc. (Subsidiary Issuer) |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | (1,731) | 10,444 | 36,096 | 16,247
Change in net unrealized gains on investments | 0 | 0 | 0 | 0
Comprehensive income | (1,731) | 10,444 | 36,096 | 16,247
Net income attributable to redeemable noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to RenaissanceRe | (1,731) | 10,444 | 36,096 | 16,247
Reportable Legal Entities | RenaissanceRe Finance, Inc. (Subsidiary Issuer) |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | (7,511) | 5,859 | 15,409 | 52,741
Change in net unrealized gains on investments | 0 | 0 | 0 | 0
Comprehensive income | (7,511) | 5,859 | 15,409 | 52,741
Net income attributable to redeemable noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to RenaissanceRe | (7,511) | 5,859 | 15,409 | 52,741
Reportable Legal Entities | Other RenaissanceRe Holdings Ltd. Subsidiaries And Eliminations (Non-Guarantor Subsidiaries) |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | 203,405 | 135,394 | 561,078 | 457,116
Change in net unrealized gains on investments | 284 | (733) | 513 | (1,156)
Comprehensive income | 203,689 | 134,661 | 561,591 | 455,960
Net income attributable to redeemable noncontrolling interests | (35,641) | (31,153) | (110,867) | (82,982)
Comprehensive income attributable to noncontrolling interests | (35,641) | (31,153) | (110,867) | (82,982)
Comprehensive income attributable to RenaissanceRe | 168,048 | 103,508 | 450,724 | 372,978
Consolidating Adjustments |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Net income | (161,463) | (120,760) | (507,825) | (472,318)
Change in net unrealized gains on investments | 0 | 0 | 0 | 0
Comprehensive income | (161,463) | (120,760) | (507,825) | (472,318)
Net income attributable to redeemable noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to noncontrolling interests | 0 | 0 | 0 | 0
Comprehensive income attributable to RenaissanceRe | $ (161,463) | $ (120,760) | $ (507,825) | $ (472,318)

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