v2.4.0.6
Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries (Condensed Consolidating Statement of Comprehensive Income (Loss) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Condensed Financial Statements, Captions [Line Items]        
Net income (loss) $ 184,644 $ 55,417 $ 448,464 $ (269,358)
Change in net unrealized gains on investments (432) (1,817) 823 (1,798)
Portion of other-than-temporary impairments recognized in other comprehensive income (25) 0 (52) 0
Comprehensive income (loss) 184,187 53,600 449,235 (271,156)
Net (income) loss attributable to noncontrolling interests (33,624) (21,903) (87,265) 63,589
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests 0 3 0 6
Comprehensive (income) loss attributable to noncontrolling interests (33,624) (21,900) (87,265) 63,595
Comprehensive income (loss) attributable to RenaissanceRe 150,563 31,700 361,970 (207,561)
RenaissanceRe Holdings Ltd. (Parent Guarantor) [Member]
       
Condensed Financial Statements, Captions [Line Items]        
Net income (loss) 151,020 33,514 361,199 (205,769)
Change in net unrealized gains on investments 0 0 0 0
Portion of other-than-temporary impairments recognized in other comprehensive income 0 0 0 0
Comprehensive income (loss) 151,020 33,514 361,199 (205,769)
Net (income) loss attributable to noncontrolling interests 0 0 0 0
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests 0 0 0 0
Comprehensive (income) loss attributable to noncontrolling interests 0 0 0 0
Comprehensive income (loss) attributable to RenaissanceRe 151,020 33,514 361,199 (205,769)
RenRe North America Holdings Inc. (Subsidiary Issuer) [Member]
       
Condensed Financial Statements, Captions [Line Items]        
Net income (loss) 2,294 (16,193) (35,120) (19,583)
Change in net unrealized gains on investments 0 0 0 0
Portion of other-than-temporary impairments recognized in other comprehensive income 0 0 0 0
Comprehensive income (loss) 2,294 (16,193) (35,120) (19,583)
Net (income) loss attributable to noncontrolling interests 0 0 0 0
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests 0 0 0 0
Comprehensive (income) loss attributable to noncontrolling interests 0 0 0 0
Comprehensive income (loss) attributable to RenaissanceRe 2,294 (16,193) (35,120) (19,583)
Other RenaissanceRe Holdings Ltd. Subsidiaries And Eliminations (Non-Guarantor Subsidiaries) [Member]
       
Condensed Financial Statements, Captions [Line Items]        
Net income (loss) 186,375 [1] 65,746 [1] 455,710 [1] (256,232) [1]
Change in net unrealized gains on investments (432) [1] (1,817) [1] 823 [1] (1,798) [1]
Portion of other-than-temporary impairments recognized in other comprehensive income (25) [1] 0 [1] (52) [1] 0 [1]
Comprehensive income (loss) 185,918 [1] 63,929 [1] 456,481 [1] (258,030) [1]
Net (income) loss attributable to noncontrolling interests (33,624) [1] (21,903) [1] (87,265) [1] 63,589 [1]
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests 0 [1] 3 [1] 0 [1] 6 [1]
Comprehensive (income) loss attributable to noncontrolling interests (33,624) [1] (21,900) [1] (87,265) [1] 63,595 [1]
Comprehensive income (loss) attributable to RenaissanceRe 152,294 [1] 42,029 [1] 369,216 [1] (194,435) [1]
Consolidating Adjustments [Member]
       
Condensed Financial Statements, Captions [Line Items]        
Net income (loss) (155,045) [2] (27,650) [2] (333,325) [2] 212,226 [2]
Change in net unrealized gains on investments 0 [2] 0 [2] 0 [2] 0 [2]
Portion of other-than-temporary impairments recognized in other comprehensive income 0 [2] 0 [2] 0 [2] 0 [2]
Comprehensive income (loss) (155,045) [2] (27,650) [2] (333,325) [2] 212,226 [2]
Net (income) loss attributable to noncontrolling interests 0 [2] 0 [2] 0 [2] 0 [2]
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests 0 [2] 0 [2] 0 [2] 0 [2]
Comprehensive (income) loss attributable to noncontrolling interests 0 [2] 0 [2] 0 [2] 0 [2]
Comprehensive income (loss) attributable to RenaissanceRe $ (155,045) [2] $ (27,650) [2] $ (333,325) [2] $ 212,226 [2]
[1] Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.
[2] Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.