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

Mar. 31, 2013

Mar. 31, 2012

Condensed Financial Statements, Captions [Line Items]

Net income

$ 235,356

$ 263,820

Change in net unrealized gains on investments

(7,572)

1,255

Portion recognized in other comprehensive income, before taxes

0

(27)

Comprehensive income

227,784

265,048

Net (income) loss attributable to noncontrolling interests

(38,607)

(53,641)

Comprehensive (income) loss attributable to noncontrolling interests

38,607

53,641

Comprehensive income attributable to RenaissanceRe

189,177

211,407

RenaissanceRe Holdings Ltd. (Parent Guarantor) [Member]

Condensed Financial Statements, Captions [Line Items]

Net income

196,749

210,179

Change in net unrealized gains on investments

0

0

Portion recognized in other comprehensive income, before taxes

0

Comprehensive income

196,749

210,179

Net (income) loss attributable to noncontrolling interests

0

0

Comprehensive (income) loss attributable to noncontrolling interests

0

0

Comprehensive income attributable to RenaissanceRe

196,749

210,179

RenRe North America Holdings Inc. (Subsidiary Issuer) [Member]

Condensed Financial Statements, Captions [Line Items]

Net income

4,546

(37,414)

Change in net unrealized gains on investments

0

0

Portion recognized in other comprehensive income, before taxes

0

Comprehensive income

4,546

(37,414)

Net (income) loss attributable to noncontrolling interests

0

0

Comprehensive (income) loss attributable to noncontrolling interests

0

0

Comprehensive income attributable to RenaissanceRe

4,546

(37,414)

Other RenaissanceRe Holdings Ltd. Subsidiaries And Eliminations (Non-Guarantor Subsidiaries) [Member]

Condensed Financial Statements, Captions [Line Items]

Net income

246,036

^[1]

269,335

^[1]

Change in net unrealized gains on investments

(7,572)

^[1]

1,255

^[1]

Portion recognized in other comprehensive income, before taxes

(27)

^[1]

Comprehensive income

238,464

^[1]

270,563

^[1]

Net (income) loss attributable to noncontrolling interests

(38,607)

^[1]

(53,641)

^[1]

Comprehensive (income) loss attributable to noncontrolling interests

38,607

^[1]

53,641

^[1]

Comprehensive income attributable to RenaissanceRe

199,857

^[1]

216,922

^[1]

Consolidating Adjustments [Member]

Condensed Financial Statements, Captions [Line Items]

Net income

(211,975)

^[2]

(178,280)

^[2]

Change in net unrealized gains on investments

0

^[2]

0

^[2]

Portion recognized in other comprehensive income, before taxes

0

^[2]

Comprehensive income

(211,975)

^[2]

(178,280)

^[2]

Net (income) loss attributable to noncontrolling interests

0

^[2]

0

^[2]

Comprehensive (income) loss attributable to noncontrolling interests

0

^[2]

0

^[2]

Comprehensive income attributable to RenaissanceRe

$ (211,975)

^[2]

$ (178,280)

^[2]

[1]	Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.
[2]	Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

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Amount of net income or loss for the period allocated to noncontrolling shareholders, unit holders, partners, or other equity holders in one or more of the entities consolidated into the reporting entity's financial statements other than those noncontrolling interests already defined within the taxonomy.

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Net of tax amount of unrealized holding gain (loss) before reclassification adjustments and transfers on available-for-sale securities.

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Before tax amount of other than temporary impairment (OTTI) on a debt security, categorized as available-for-sale, recognized in other comprehensive income (loss).

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