10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

QQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2012

OR

o  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File No. 001-14428

RENAISSANCERE HOLDINGS LTD.

(Exact Name Of Registrant As Specified In Its Charter)

Bermuda	98-014-1974
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification Number)

Renaissance House, 12 Crow Lane, Pembroke HM 19 Bermuda

(Address of Principal Executive Offices)

(441) 295-4513

(Registrant’s telephone number)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes Q  No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes Q  No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company, as defined in Rule 12b-2 of the Act. Large accelerated filer Q, Accelerated filer o, Non-accelerated filer o, Smaller reporting company o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).

Yes o  No Q

The number of Common Shares, par value US $1.00 per share, outstanding at July 30, 2012 was 50,537,049.

RENAISSANCERE HOLDINGS LTD.

TABLE OF CONTENTS

		Page
PART I
ITEM 1.	FINANCIAL STATEMENTS
	Consolidated Balance Sheets at June 30, 2012 (unaudited) and December 31, 2011	2
	Unaudited Consolidated Statements of Operations for the three and six months ended June 30, 2012 and 2011	3
	Unaudited Consolidated Statements of Comprehensive Income (Loss) for the three and six months ended June 30, 2012 and 2011	4
	Unaudited Consolidated Statements of Changes in Shareholders' Equity for the six months ended June 30, 2012 and 2011	5
	Unaudited Consolidated Statements of Cash Flows for the six months ended June 30, 2012 and 2011	6
	Notes to Unaudited Consolidated Financial Statements	7
ITEM 2.	MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	60
ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	112
ITEM 4.	CONTROLS AND PROCEDURES	112
PART II
ITEM 1.	LEGAL PROCEEDINGS	113
ITEM 1A.	RISK FACTORS	113
ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	113
ITEM 3.	DEFAULTS UPON SENIOR SECURITIES	114
ITEM 4.	MINE SAFETY DISCLOSURES	114
ITEM 5.	OTHER INFORMATION	114
ITEM 6.	EXHIBITS	114
SIGNATURES - RENAISSANCERE HOLDINGS LTD.		115

PART I - FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATMENTS

RenaissanceRe Holdings Ltd. and Subsidiaries

Consolidated Balance Sheets

(in thousands of United States Dollars, except per share amounts)

	June 30, 2012		December 31, 2011
Assets	(Unaudited)		(Audited)
Fixed maturity investments trading, at fair value
(Amortized cost $4,890,251 and $4,265,929 at June 30, 2012 and December 31, 2011, respectively)	$	4,948,955	$	4,291,465
Fixed maturity investments available for sale, at fair value
(Amortized cost $96,647 and $130,669 at June 30, 2012 and December 31, 2011, respectively)	108,102		142,052
Short term investments, at fair value	654,912		905,477
Equity investments trading, at fair value	55,381		50,560
Other investments, at fair value	743,568		748,984
Investments in other ventures, under equity method	79,692		70,714
Total investments	6,590,610		6,209,252
Cash and cash equivalents	264,232		216,984
Premiums receivable	971,546		471,878
Prepaid reinsurance premiums	278,242		58,522
Reinsurance recoverable	198,777		404,029
Accrued investment income	35,938		33,523
Deferred acquisition costs	106,027		43,721
Receivable for investments sold	311,658		117,117
Other assets	193,798		180,992
Goodwill and other intangible assets	8,690		8,894
Total assets	$	8,959,518	$	7,744,912
Liabilities, Noncontrolling Interests and Shareholders’ Equity
Liabilities
Reserve for claims and claim expenses	$	1,801,247	$	1,992,354
Unearned premiums	964,499		347,655
Debt	354,293		353,620
Reinsurance balances payable	396,669		256,883
Payable for investments purchased	519,619		303,264
Other liabilities	173,433		211,369
Liabilities of discontinued operations held for sale	1,959		13,507
Total liabilities	4,211,719		3,478,652
Commitments and Contingencies
Redeemable noncontrolling interest – DaVinciRe	900,878		657,727
Shareholders’ Equity
Preference Shares: $1.00 par value – 22,000,000 shares issued and outstanding at June 30, 2012 (December 31, 2011 – 22,000,000)	550,000		550,000
Common shares: $1.00 par value – 50,608,641 shares issued and outstanding at June 30, 2012 (December 31, 2011 – 51,542,955)	50,609		51,543
Accumulated other comprehensive income	12,531		11,760
Retained earnings	3,229,870		2,991,890
Total shareholders’ equity attributable to RenaissanceRe	3,843,010		3,605,193
Noncontrolling interest	3,911		3,340
Total shareholders’ equity	3,846,921		3,608,533
Total liabilities, noncontrolling interests and shareholders’ equity	$	8,959,518	$	7,744,912

See accompanying notes to the consolidated financial statements

2

RenaissanceRe Holdings Ltd. and Subsidiaries

Consolidated Statements of Operations

For the three and six months endedJune 30, 2012 and 2011

(in thousands of United States Dollars, except per share amounts) (Unaudited)

	Three months ended						Six months ended
	June 30, 2012			June 30, 2011			June 30, 2012			June 30, 2011
Revenues
Gross premiums written	$	667,336		$	641,563		$	1,331,487		$	1,252,068
Net premiums written	$	427,630		$	427,995		$	920,205		$	880,570
Increase in unearned premiums	(183,214		)	(210,820		)	(397,124		)	(357,854		)
Net premiums earned	244,416			217,175			523,081			522,716
Net investment income	14,743			33,328			81,714			93,609
Net foreign exchange gains (losses)	2,410			(4,521		)	950			(3,861		)
Equity in earnings (losses) of other ventures	6,846			5,128			12,316			(18,625		)
Other income (loss)	11,289			(5,167		)	(27,805		)	44,978
Net realized and unrealized gains on investments	31,003			34,979			77,116			29,765
Total other-than-temporary impairments	(234		)	—			(395		)	—
Portion recognized in other comprehensive income, before taxes	25			—			52			—
Net other-than-temporary impairments	(209		)	—			(343		)	—
Total revenues	310,498			280,922			667,029			668,582
Expenses
Net claims and claim expenses incurred	49,551			151,261			65,103			779,798
Acquisition expenses	25,608			13,883			49,719			46,218
Operational expenses	41,407			42,299			83,790			84,129
Corporate expenses	4,067			4,011			8,878			6,075
Interest expense	5,716			5,730			11,434			11,925
Total expenses	126,349			217,184			218,924			928,145
Income (loss) from continuing operations before taxes	184,149			63,738			448,105			(259,563		)
Income tax (expense) benefit	(898		)	1,773			(861		)	1,825
Income (loss) from continuing operations	183,251			65,511			447,244			(257,738		)
Income (loss) from discontinued operations	1,393			(10,094		)	1,220			(11,620		)
Net income (loss)	184,644			55,417			448,464			(269,358		)
Net (income) loss attributable to noncontrolling interests	(33,624		)	(21,903		)	(87,265		)	63,589
Net income (loss) attributable to RenaissanceRe	151,020			33,514			361,199			(205,769		)
Dividends on preference shares	(8,750		)	(8,750		)	(17,500		)	(17,500		)
Net income (loss) available (attributable) to RenaissanceRe common shareholders	$	142,270		$	24,764		$	343,699		$	(223,269	)
Income (loss) from continuing operations available (attributable) to RenaissanceRe common shareholders per common share – basic	$	2.75		$	0.68		$	6.70		$	(4.16	)
Income (loss) from discontinued operations available (attributable) to RenaissanceRe common shareholders per common share – basic	0.03			(0.20		)	0.02			(0.23		)
Net income (loss) available (attributable) to RenaissanceRe common shareholders per common share – basic	$	2.78		$	0.48		$	6.72		$	(4.39	)
Income (loss) from continuing operations available (attributable) to RenaissanceRe common shareholders per common share – diluted	$	2.72		$	0.68		$	6.61		$	(4.16	)
Income (loss) from discontinued operations available (attributable) to RenaissanceRe common shareholders per common share – diluted	0.03			(0.20		)	0.02			(0.23		)
Net income (loss) available (attributable) to RenaissanceRe common shareholders per common share – diluted	$	2.75		$	0.48		$	6.63		$	(4.39	)
Dividends per common share	$	0.27		$	0.26		$	0.54		$	0.52

See accompanying notes to the consolidated financial statements

3

RenaissanceRe Holdings Ltd. and Subsidiaries

Consolidated Statements of Comprehensive Income (Loss)

For the three and six months endedJune 30, 2012 and 2011

(in thousands of United States Dollars) (Unaudited)

	Three months ended						Six months ended
	June 30, 2012			June 30, 2011			June 30, 2012			June 30, 2011
Comprehensive income (loss)
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 (loss)	(25		)	—			(52		)	—
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	—			3			—			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	)
Disclosure regarding net unrealized gains
Total realized and net unrealized holding gains on investments and net other-than-temporary impairments	$	105		$	1,292		$	2,529		$	902
Net realized gains on fixed maturity investments available for sale	(746		)	(3,106		)	(2,049		)	(2,694		)
Net other-than-temporary impairments recognized in earnings	209			—			343			—
Change in net unrealized gains on investments	$	(432	)	$	(1,814	)	$	823		$	(1,792	)

See accompanying notes to the consolidated financial statements

4

RenaissanceRe Holdings Ltd. and Subsidiaries

Consolidated Statements of Changes in Shareholders’ Equity

For the six months endedJune 30, 2012 and 2011

(in thousands of United States Dollars) (Unaudited)

	Six months ended
	June 30, 2012			June 30, 2011
Preference shares
Balance – January 1	$	550,000		$	550,000
Balance – June 30	550,000			550,000
Common shares
Balance – January 1	51,543			54,110
Repurchase of shares	(1,229		)	(2,655		)
Exercise of options and issuance of restricted stock awards	295			298
Balance – June 30	50,609			51,753
Additional paid-in capital
Balance – January 1	—			—
Repurchase of shares	(12,350		)	546
Change in redeemable noncontrolling interest	7,056			(143		)
Exercise of options and issuance of restricted stock awards	5,294			5,365
Balance – June 30	—			5,768
Accumulated other comprehensive income
Balance – January 1	11,760			19,823
Change in net unrealized gains on investments	823			(1,792		)
Portion of other-than-temporary impairments recognized in other comprehensive income (loss)	(52		)	—
Balance – June 30	12,531			18,031
Retained earnings
Balance – January 1	2,991,890			3,312,392
Net income (loss)	448,464			(269,358		)
Net (income) loss attributable to noncontrolling interests	(87,265		)	63,589
Repurchase of shares	(78,046		)	(172,683		)
Dividends on common shares	(27,673		)	(26,721		)
Dividends on preference shares	(17,500		)	(17,500		)
Balance – June 30	3,229,870			2,889,719
Noncontrolling interest	3,911			3,430
Total shareholders’ equity	$	3,846,921		$	3,518,701

See accompanying notes to the consolidated financial statements

5

RenaissanceRe Holdings Ltd. and Subsidiaries

Consolidated Statements of Cash Flows

For the six months endedJune 30, 2012 and 2011

(in thousands of United States Dollars) (Unaudited)

	Six months ended
	June 30, 2012			June 30, 2011
Cash flows provided by operating activities
Net income (loss)	$	448,464		$	(269,358	)
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Amortization, accretion and depreciation	28,785			17,249
Equity in undistributed (earnings) losses of other ventures	(8,868		)	21,355
Net realized and unrealized gains on investments	(77,116		)	(29,765		)
Net other-than-temporary impairments	343			—
Net unrealized gains included in net investment income	(23,821		)	(22,270		)
Net unrealized gains included in other income (loss)	(2,987		)	(63,141		)
Change in:
Premiums receivable	(499,668		)	(611,439		)
Prepaid reinsurance premiums	(219,720		)	(185,033		)
Reinsurance recoverable	205,252			(231,534		)
Deferred acquisition costs	(62,306		)	(55,210		)
Reserve for claims and claim expenses	(191,107		)	912,885
Unearned premiums	616,844			544,756
Reinsurance balances payable	139,786			85,128
Other	(50,104		)	(82,627		)
Net cash provided by operating activities	303,777			30,996
Cash flows (used in) provided by investing activities
Proceeds from sales and maturities of fixed maturity investments trading	4,792,702			2,879,215
Purchases of fixed maturity investments trading	(5,312,902		)	(2,811,678		)
Proceeds from sales and maturities of fixed maturity investments available for sale	37,530			48,135
Purchases of fixed maturity investments available for sale	—			(4,078		)
Purchases of equity investments trading	—			(32,676		)
Net sales of short term investments	183,605			50,852
Net sales (purchases) of other investments	18,681			(23,881		)
Net purchases of investments in other ventures	—			(21,000		)
Net (purchases) sales of other assets	(166		)	46,984
Net proceeds from sale of discontinued operations held for sale	—			269,520
Net cash (used in) provided by investing activities	(280,550		)	401,393
Cash flows provided by (used in) financing activities
Dividends paid – RenaissanceRe common shares	(27,673		)	(26,721		)
Dividends paid – preference shares	(17,500		)	(17,500		)
RenaissanceRe common share repurchases	(90,111		)	(174,792		)
Net repayment of debt	—			(200,000		)
Net third party DaVinciRe share transactions	160,864			(56,708		)
Net cash provided by (used in) financing activities	25,580			(475,721		)
Effect of exchange rate changes on foreign currency cash	(1,559		)	3,331
Net increase (decrease) in cash and cash equivalents	47,248			(40,001		)
Cash and cash equivalents, beginning of period	216,984			277,738
Cash and cash equivalents, end of period	$	264,232		$	237,737

See accompanying notes to the consolidated financial statements

6

RENAISSANCERE HOLDINGS LTD. AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2012

(unless otherwise noted, amounts in tables expressed in thousands of United States (“U.S.”) dollars, except per share amounts and percentages) (Unaudited)

NOTE 1.ORGANIZATION

This report on Form 10-Q should be read in conjunction with the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2011.

RenaissanceRe Holdings Ltd. (“RenaissanceRe”) was formed under the laws of Bermuda on June 7, 1993. Together with its wholly owned and majority-owned subsidiaries and DaVinciRe (as defined below), which are collectively referred to herein as the “Company”, RenaissanceRe provides reinsurance and insurance coverages and related services to a broad range of customers.

• Renaissance Reinsurance Ltd. (“Renaissance Reinsurance”), the Company’s principal reinsurance subsidiary, provides property catastrophe and specialty reinsurance coverages to insurers and reinsurers on a worldwide basis.

• The Company also manages property catastrophe and specialty reinsurance business written on behalf of joint ventures, which principally include Top Layer Reinsurance Ltd. (“Top Layer Re”), recorded under the equity method of accounting, and DaVinci Reinsurance Ltd. (“DaVinci”). Because the Company owns a noncontrolling equity interest in, but controls a majority of the outstanding voting power of DaVinci's parent, DaVinciRe Holdings Ltd. (“DaVinciRe”), the results of DaVinci and DaVinciRe are consolidated in the Company’s financial statements. Redeemable noncontrolling interest – DaVinciRe represents the interests of external parties with respect to the net loss (income) and shareholders’ equity of DaVinciRe. Renaissance Underwriting Managers, Ltd. (“RUM”), a wholly owned subsidiary, acts as exclusive underwriting manager for these joint ventures in return for fee-based income and profit participation.

• RenaissanceRe Syndicate 1458 (“Syndicate 1458”) is the Company’s Lloyd’s syndicate which was licensed to start writing certain lines of insurance and reinsurance business effective June 1, 2009. RenaissanceRe Corporate Capital (UK) Limited (“RenaissanceRe CCL”), a wholly owned subsidiary of the Company, is Syndicate 1458’s sole corporate member and RenaissanceRe Syndicate Management Ltd. (“RSML”), a wholly owned subsidiary of the Company from November 2, 2009, is the managing agent for Syndicate 1458.

• The Company, through Renaissance Trading Ltd. (“Renaissance Trading”) and RenRe Energy Advisors Ltd. (“REAL”), transacts certain derivative-based risk management products primarily to address weather and energy risk and engages in hedging and trading activities related to those transactions.

• On November 18, 2010, the Company entered into a definitive stock purchase agreement (the “Stock Purchase Agreement”) with QBE Holdings, Inc. (“QBE”) to sell substantially all of its U.S.-based insurance operations including its U.S. property and casualty business underwritten through managing general agents, its crop insurance business underwritten through Agro National Inc. (“Agro National”), its commercial property insurance operations and its claims operations. At December 31, 2010, the Company classified the assets and liabilities associated with this transaction as held for sale. The financial results for these operations have been presented in the Company's consolidated financial statements as “discontinued operations” for all periods presented. On March 4, 2011, the Company and QBE closed the transaction contemplated by the Stock Purchase Agreement. Refer to “Note 3. Discontinued Operations,” for more information.

7

NOTE 2.SIGNIFICANT ACCOUNTING POLICIES

There have been no material changes to our significant accounting policies as described in our Annual Report on Form 10-K for the year ended December 31, 2011.

BASIS OF PRESENTATION

The consolidated financial statements have been prepared on the basis of accounting principles generally accepted in the United States (“GAAP”) for interim financial information and in conformity with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, these unaudited consolidated financial statements reflect all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the Company's financial position and results of operations as at the end of and for the periods presented. All significant intercompany accounts and transactions have been eliminated from these statements. Except as discussed in “Note 3. Discontinued Operations,” and unless otherwise noted, the notes to the consolidated financial statements reflect the Company's continuing operations.

Certain comparative information has been reclassified to conform to the current presentation. Because of the seasonality of the Company's business, the results of operations and cash flows for any interim period will not necessarily be indicative of the results of operations and cash flows for the full fiscal year or subsequent quarters.

USE OF ESTIMATES IN FINANCIAL STATEMENTS

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported and disclosed amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates. The major estimates reflected in the Company’s consolidated financial statements include, but are not limited to, the reserve for claims and claim expenses, reinsurance recoverables, including allowances for reinsurance recoverables deemed uncollectible, estimates of written and earned premiums, fair value, including the fair value of investments, financial instruments and derivatives, impairment charges and the Company’s deferred tax valuation allowance.

RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS

Accounting for Costs Associated with Acquiring or Renewing Insurance Contracts

In October 2010, the FASB issued Accounting Standards Update (“ASU”) No. 2010-26, Accounting for Costs Associated with Acquiring or Renewing Insurance Contracts (“ASU 2010-26”), which amends FASB ASC Topic Financial Services - Insurance. ASU 2010-26 modifies the definition of the types of costs that can be capitalized in relation to the acquisition of new and renewal insurance contracts. The amended guidance requires costs to be incremental or directly related to the successful acquisition of new or renewal contracts in order to be capitalized as a deferred acquisition cost. Capitalized costs would include incremental direct costs, such as commissions paid to brokers. Additionally, the portion of employee salaries and benefits directly related to time spent for acquired contracts would be capitalized. Costs that fall outside the revised definition must be expensed when incurred. ASU 2010-26 became effective for fiscal periods beginning on or after December 15, 2011, and as a result, the Company adopted ASU 2010-26 effective January 1, 2012. The adoption of ASU 2010-26 did not have a material impact on the Company's consolidated statements of operations and financial condition.

Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs

In May 2011, the FASB issued ASU No. 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs (“ASU 2011-04”), which amends FASB ASC Topic Fair Value Measurement. ASU 2011-04 was issued to provide largely identical guidance about fair value measurement and disclosure requirements with the International Accounting Standards Board's new International Financial Reporting Standards (“IFRS”) 13, Fair Value Measurement. ASU

8

2011-04 does not extend the use of fair value but, rather, provides guidance about how fair value should be applied where it is already required or permitted under GAAP and requires enhanced disclosures covering all transfers between Levels 1 and 2 of the fair value hierarchy. Additional disclosures covering Level 3 assets are also required. ASU 2011-04 became effective for fiscal years, and interim periods within those years, beginning after December 15, 2011 and as a result, the Company adopted ASU 2011-04 effective January 1, 2012. The adoption of ASU 2011-04 did not have a material impact on the Company's consolidated statements of operations and financial condition. The additional disclosures required by ASU 2011-04 have been provided in "Note 5. Fair Value Measurements" of the Company's Notes to Consolidated Financial Statements.

Presentation of Comprehensive Income

In June 2011, the FASB issued ASU No. 2011-05, Presentation of Comprehensive Income (“ASU 2011-05”), which amends FASB ASC Topic Comprehensive Income. ASU 2011-05 increases the prominence of items reported in other comprehensive income and eliminates the option to present components of other comprehensive income as part of the statement of changes in shareholders' equity. ASU 2011-05 requires that all non-owner changes in shareholders' equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. ASU 2011-05 became effective for fiscal years, and interim periods within those years, beginning after December 15, 2011, with retroactive application required. The Company adopted ASU 2010-26 effective January 1, 2012 and it did not have a material impact on the Company's consolidated statements of operations and financial condition.

NOTE 3.DISCONTINUED OPERATIONS

U.S.-Based Insurance Operations

On November 18, 2010, the Company entered into a Stock Purchase Agreement with QBE to sell substantially all of its U.S.-based insurance operations, including its U.S. property and casualty business underwritten through managing general agents, its crop insurance business underwritten through Agro National, its commercial property insurance operations and its claims operations.  At December 31, 2010, the Company classified the assets and liabilities associated with this transaction as held for sale and the assets and liabilities were recorded at the lower of the carrying value or fair value less costs to sell. The financial results for these operations have been presented as discontinued operations in the Company's consolidated statements of operations for all periods presented.

Consideration for the transaction was book value at December 31, 2010, for the aforementioned businesses, payable in cash at closing and subject to adjustment for certain tax and other items. The transaction closed on March 4, 2011 and net consideration of $269.5 million was received by the Company.

Pursuant to the Stock Purchase Agreement, the Company was subject to a post-closing review following December 31, 2011 of the net reserve for claims and claim expenses for loss events occurring on or prior to December 31, 2010 (the “Reserve Collar”). Subsequent to the post-closing review, the Company was liable to pay, or otherwise reimburse QBE amounts up to $10.0 million for net adverse development on prior accident years net claims and claim expenses. Conversely, if prior accident years net claims and claim expenses experienced net favorable development, QBE was liable to pay, or otherwise reimburse the Company amounts up to $10.0 million.

During 2011, the Company recognized a $10.0 million liability and corresponding expense in liabilities of discontinued operations held for sale and (loss) income from discontinued operations, respectively, due to purported net adverse development on prior accident years net claims and claim expenses associated with the Reserve Collar.  Effective May 23, 2012, the Company and QBE reached an agreement in respect of the Reserve Collar, and the Company paid QBE the sum of $9.0 million on June 1, 2012, representing full and final settlement of the Reserve Collar and recorded a gain of $1.0 million in income from discontinued operations during the second quarter of 2012.

9

NOTE 4.INVESTMENTS

Fixed Maturity Investments Trading

The following table summarizes the fair value of fixed maturity investments trading:

	June 30, 2012		December 31, 2011
U.S. treasuries	$	1,126,759	$	885,152
Agencies	436,691		158,561
Non-U.S. government (Sovereign debt)	172,008		216,916
FDIC guaranteed corporate	29,386		423,630
Non-U.S. government-backed corporate	393,875		640,757
Corporate	1,652,007		1,187,437
Agency mortgage-backed	580,971		428,042
Non-agency mortgage-backed	135,268		82,096
Commercial mortgage-backed	414,524		255,885
Asset-backed	7,466		12,989
Total fixed maturity investments trading	$	4,948,955	$	4,291,465

Fixed Maturity Investments Available For Sale

The following table summarizes the amortized cost, fair value and related unrealized gains and losses and non-credit other-than-temporary impairments of fixed maturity investments available for sale:

			Included in Accumulated Other Comprehensive Income
At June 30, 2012	Amortized  Cost		Gross Unrealized     Gains		Gross Unrealized     Losses			Fair Value		Non-Credit Other-Than- Temporary Impairments  (1)
Non-U.S. government (Sovereign debt)	$	5,000	$	223	$	—		$	5,223	$	—
Corporate	11,815		1,010		(110		)	12,715		75
Agency mortgage-backed	10,478		906		—			11,384		—
Non-agency mortgage-backed	15,929		2,496		(19		)	18,406		891
Commercial mortgage-backed	48,926		6,717		—			55,643		—
Asset-backed	4,499		232		—			4,731		—
Total fixed maturity investments available for sale	$	96,647	$	11,584	$	(129	)	$	108,102	$	966

10

			Included in Accumulated Other Comprehensive Income
At December 31, 2011	Amortized Cost		Gross Unrealized     Gains		Gross Unrealized     Losses			Fair Value		Non-Credit Other-Than- Temporary Impairments  (1)
Non-U.S. government (Sovereign debt)	$	10,087	$	921	$	(12	)	$	10,996	$	—
Non-U.S. government-backed corporate	312		13		—			325		—
Corporate	18,449		1,535		(517		)	19,467		(176		)
Agency mortgage-backed	12,636		1,071		—			13,707		—
Non-agency mortgage-backed	21,097		1,862		(284		)	22,675		(1,837		)
Commercial mortgage-backed	63,269		6,576		(1		)	69,844		—
Asset-backed	4,819		219		—			5,038		—
Total fixed maturity investments available for sale	$	130,669	$	12,197	$	(814	)	$	142,052	$	(2,013	)

(1) Represents the non-credit component of other-than-temporary impairments recognized in accumulated other comprehensive income since the adoption of guidance related to the recognition and presentation of other-than-temporary impairments under FASB ASC Topic Financial Instruments – Debt and Equity Securities, during the second quarter of 2009, adjusted for subsequent sales of securities. It does not include the change in fair value subsequent to the impairment measurement date.

Contractual maturities of fixed maturity investments are as follows. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Trading				Available for Sale				Total Fixed Maturity Investments
At June 30, 2012	Amortized  Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in less than one year	$	405,210	$	405,547	$	112	$	89	$	405,322	$	405,636
Due after one through five years	2,606,528		2,615,915		8,358		8,761		2,614,886		2,624,676
Due after five through ten years	625,279		646,130		6,200		6,779		631,479		652,909
Due after ten years	130,574		143,134		2,145		2,309		132,719		145,443
Mortgage-backed	1,115,304		1,130,763		75,333		85,433		1,190,637		1,216,196
Asset-backed	7,356		7,466		4,499		4,731		11,855		12,197
Total	$	4,890,251	$	4,948,955	$	96,647	$	108,102	$	4,986,898	$	5,057,057

Equity Investments Trading

The following table summarizes the fair value of equity investments trading:

	June 30, 2012		December 31, 2011
Financial institution securities	$	55,381	$	50,560

11

Pledged Investments

At June 30, 2012, $1,330.9 million of cash and investments at fair value were on deposit with, or in trust accounts for the benefit of various counterparties, including with respect to the Company's principal letter of credit facility. Of this amount, $522.6 million is on deposit with, or in trust accounts for the benefit of, U.S. state regulatory authorities.

Net Investment Income, Net Realized and Unrealized Gains on Investments and Net Other-Than-Temporary Impairments

The components of net investment income are as follows:

Three months ended June 30,	2012			2011
Fixed maturity investments	$	22,436		$	24,426
Short term investments	234			433
Equity investments	181			112
Other investments
Hedge funds and private equity investments	(10,413		)	8,230
Other	4,975			2,838
Cash and cash equivalents	54			45
	17,467			36,084
Investment expenses	(2,724		)	(2,756		)
Net investment income	$	14,743		$	33,328

Six months ended June 30,	2012			2011
Fixed maturity investments	$	48,769		$	52,339
Short term investments	734			1,028
Equity investments	351			126
Other investments
Hedge funds and private equity investments	18,060			31,737
Other	19,145			13,665
Cash and cash equivalents	80			86
	87,139			98,981
Investment expenses	(5,425		)	(5,372		)
Net investment income	$	81,714		$	93,609

Net realized and unrealized gains on investments and net other-than-temporary impairments are as follows:

Three months ended June 30,	2012			2011
Gross realized gains	$	19,458		$	15,430
Gross realized losses	(3,294		)	(4,156		)
Net realized gains on fixed maturity investments	16,164			11,274
Net unrealized gains on fixed maturity investments trading	12,538			24,728
Net unrealized gains (losses) on equity investments trading	2,301			(1,023		)
Net realized and unrealized gains on investments	$	31,003		$	34,979
Total other-than-temporary impairments	$	(234	)	$	—
Portion recognized in other comprehensive income, before taxes	25			—
Net other-than-temporary impairments	$	(209	)	$	—

12

Six months ended June 30,	2012			2011
Gross realized gains	$	55,744		$	25,992
Gross realized losses	(10,244		)	(16,773		)
Net realized gains on fixed maturity investments	45,500			9,219
Net unrealized gains on fixed maturity investments trading	26,795			20,970
Net unrealized gains on equity investments trading	4,821			(424		)
Net realized and unrealized gains on investments	$	77,116		$	29,765
Total other-than-temporary impairments	$	(395	)	$	—
Portion recognized in other comprehensive income, before taxes	52			—
Net other-than-temporary impairments	$	(343	)	$	—

The following table provides an analysis of the length of time the Company’s fixed maturity investments available for sale in an unrealized loss have been in a continual unrealized loss position.

	Less than 12 Months					12 Months or Greater					Total
At June 30, 2012	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Corporate	$	1,424	$	(49	)	$	513	$	(61	)	$	1,937	$	(110	)
Non-agency mortgage-backed	—		—			98		(19		)	98		(19		)
Total	$	1,424	$	(49	)	$	611	$	(80	)	$	2,035	$	(129	)

	Less than 12 Months					12 Months or Greater					Total
At December 31, 2011	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Non-U.S. government (Sovereign debt)	$	915	$	(9	)	$	42	$	(3	)	$	957	$	(12	)
Corporate	3,935		(385		)	412		(132		)	4,347		(517		)
Non-agency mortgage-backed	8,024		(224		)	798		(60		)	8,822		(284		)
Commercial mortgage-backed	—		—			455		(1		)	455		(1		)
Total	$	12,874	$	(618	)	$	1,707	$	(196	)	$	14,581	$	(814	)

At June 30, 2012, the Company held 44 fixed maturity investments available for sale securities that were in an unrealized loss position, including 13 fixed maturity investments available for sale securities that were in an unrealized loss position for twelve months or greater. The Company does not intend to sell these securities and it is not more likely than not that the Company will be required to sell these securities before the anticipated recovery of the remaining amortized cost basis. The Company performed reviews of its fixed maturity investments available for sale for the six months endedJune 30, 2012 and 2011, respectively, in order to determine whether declines in the fair value below the amortized cost basis were considered other-than-temporary in accordance with the applicable guidance, as discussed below.

Other-Than-Temporary Impairment Process

The Company's process for assessing whether declines in the fair value of its fixed maturity investments available for sale represent impairments that are other-than-temporary includes reviewing each fixed maturity investment available for sale that is impaired and determining: (i) if the Company has the intent to sell the debt security or (ii) if it is more likely than not that the Company will be required to sell the debt security before its anticipated recovery; and (iii) whether a credit loss exists, that is, where the Company expects that the present value of the cash flows expected to be collected from the security are less than the amortized cost basis of the security.

13

In assessing the Company’s intent to sell securities, the Company’s procedures may include actions such as discussing planned sales with its third party investment managers, reviewing sales that have occurred shortly after the balance sheet date, and consideration of other qualitative factors that may be indicative of the Company’s intent to sell or hold the relevant securities. For the six months endedJune 30, 2012, the Company recognized $Nil other-than-temporary impairments due to the Company’s intent to sell these securities as of June 30, 2012 (2011 – $Nil).

In assessing whether it is more likely than not that the Company will be required to sell a security before its anticipated recovery, the Company considers various factors including its future cash flow forecasts and requirements, legal and regulatory requirements, the level of its cash, cash equivalents, short term investments, fixed maturity investments trading and fixed maturity investments available for sale in an unrealized gain position, and other relevant factors. For the six months endedJune 30, 2012, the Company recognized $Nil of other-than-temporary impairments due to required sales (2011 – $Nil).

In evaluating credit losses, the Company considers a variety of factors in the assessment of a security including: (i) the time period during which there has been a significant decline below cost; (ii) the extent of the decline below cost and par; (iii) the potential for the security to recover in value; (iv) an analysis of the financial condition of the issuer; (v) the rating of the issuer; (vi) the implied rating of the issuer based on an analysis of option adjusted spreads; (vii) the absolute level of the option adjusted spread for the issuer; and (viii) an analysis of the collateral structure and credit support of the security, if applicable.

Once the Company determines that it is possible that a credit loss may exist for a security, the Company performs a detailed review of the cash flows expected to be collected from the issuer. The Company estimates expected cash flows by applying estimated default probabilities and recovery rates to the contractual cash flows of the issuer, with such default and recovery rates reflecting long-term historical averages adjusted to reflect current credit, economic and market conditions, giving due consideration to collateral and credit support, if applicable, and discounting the expected cash flows at the purchase yield on the security. In instances in which a determination is made that an impairment exists but the Company does not intend to sell the security and it is not more likely than not that the Company will be required to sell the security before the anticipated recovery of its remaining amortized cost basis, the impairment is separated into: (i) the amount of the total other-than-temporary impairment related to the credit loss; and (ii) the amount of the total other-than-temporary impairment related to all other factors. The amount of the other-than-temporary impairment related to the credit loss is recognized in earnings. The amount of the other-than-temporary impairment related to all other factors is recognized in other comprehensive income. For the six months endedJune 30, 2012, the Company recognized $0.3 million of other-than-temporary impairments which were recognized in earnings and $52 thousand related to other factors which were recognized in other comprehensive income (2011 – $Nil and $Nil, respectively).

14

The following table provides a rollforward of the amount of other-than-temporary impairments related to credit losses recognized in earnings for which a portion of an other-than-temporary impairment was recognized in accumulated other comprehensive income:

	2012			2011
Balance – April 1	$	520		$	2,875
Additions:
Amount related to credit loss for which an other-than-temporary impairment was not previously recognized	11			—
Amount related to credit loss for which an other-than-temporary impairment was previously recognized	41			—
Reductions:
Securities sold during the period	(396		)	(246		)
Securities for which the amount previously recognized in other comprehensive income was recognized in earnings, because the Company intends to sell the security or is more likely than not the Company will be required to sell the security	—			—
Increases in cash flows expected to be collected that are recognized over the remaining life of the security	—			—
Balance – June 30	$	176		$	2,629

	2012			2011
Balance – January 1	$	564		$	3,098
Additions:
Amount related to credit loss for which an other-than-temporary impairment was not previously recognized	11			—
Amount related to credit loss for which an other-than-temporary impairment was previously recognized	50			—
Reductions:
Securities sold during the period	(449		)	(469		)
Securities for which the amount previously recognized in other comprehensive income was recognized in earnings, because the Company intends to sell the security or is more likely than not the Company will be required to sell the security	—			—
Increases in cash flows expected to be collected that are recognized over the remaining life of the security	—			—
Balance – June 30	$	176		$	2,629

15

NOTE 5.FAIR VALUE MEASUREMENTS

The use of fair value to measure certain assets and liabilities with resulting unrealized gains or losses is pervasive within the Company's financial statements. Fair value is defined under accounting guidance currently applicable to the Company to be the price that would be received upon the sale of an asset or paid to transfer a liability in an orderly transaction between open market participants at the measurement date. The Company recognizes the change in unrealized gains and losses arising from changes in fair value in its consolidated statements of operations, with the exception of changes in unrealized gains and losses on its fixed maturity investments available for sale, which are recognized as a component of accumulated other comprehensive income in shareholders' equity.

FASB ASC Topic Fair Value Measurements and Disclosures prescribes a fair value hierarchy that prioritizes the inputs to the respective valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below:

• Fair values determined by Level 1 inputs utilize unadjusted quoted prices obtained from active markets for identical assets or liabilities for which the Company has access. The fair value is determined by multiplying the quoted price by the quantity held by the Company;

• Fair values determined by Level 2 inputs utilize inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs include quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices that are observable for the asset or liability, such as interest rates and yield curves that are observable at commonly quoted intervals, broker quotes and certain pricing indices; and

• Level 3 inputs are based on unobservable inputs for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. In these cases, significant management assumptions can be used to establish management's best estimate of the assumptions used by other market participants in determining the fair value of the asset or liability.

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, the level in the fair value hierarchy within which the fair value measurement in its entirety falls has been determined based on the lowest level input that is significant to the fair value measurement of the asset or liability. The Company's assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and the Company considers factors specific to the asset or liability.

In order to determine if a market is active or inactive for a security, the Company considers a number of factors, including, but not limited to, the spread between what a seller is asking for a security and what a buyer is bidding for the same security, the volume of trading activity for the security in question, the price of the security compared to its par value (for fixed maturity investments), and other factors that may be indicative of market activity. 

There have been no material changes in the Company's valuation techniques, nor have there been any transfers between Level 1 and Level 2, or Level 2 and Level 3, respectively, during the period represented by these consolidated financial statements.

16

Below is a summary of the assets and liabilities that are measured at fair value on a recurring basis and also represents the carrying amount on the Company’s consolidated balance sheet:

At June 30, 2012	Total		Quoted Prices in Active Markets for Identical  Assets (Level 1)			Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Fixed maturity investments
U.S. treasuries	$	1,126,759	$	1,126,759		$	—	$	—
Agencies	436,691		—			436,691		—
Non-U.S. government (Sovereign debt)	177,231		—			177,231		—
FDIC guaranteed corporate	29,386		—			29,386		—
Non-U.S. government-backed corporate	393,875		—			393,875		—
Corporate	1,664,722		—			1,636,947		27,775
Agency mortgage-backed	592,355		—			592,355		—
Non-agency mortgage-backed	153,674		—			153,674		—
Commercial mortgage-backed	470,167		—			470,167		—
Asset-backed	12,197		—			12,197		—
Total fixed maturity investments	5,057,057		1,126,759			3,902,523		27,775
Short term investments	654,912		—			654,912		—
Equity investments trading	55,381		55,381			—		—
Other investments
Private equity partnerships	360,268		—			—		360,268
Senior secured bank loan funds	269,317		—			246,593		22,724
Catastrophe bonds	106,470		—			106,470		—
Hedge funds	6,243		—			—		6,243
Miscellaneous other investments	1,270		—			—		1,270
Total other investments	743,568		—			353,063		390,505
Other assets and (liabilities)
Assumed and ceded (re)insurance contracts	9,689		—			—		9,689
Derivatives (1)	14,752		2,011			3,660		9,081
Other	10,811		(4,604		)	—		15,415
Total other assets and (liabilities)	35,252		(2,593		)	3,660		34,185
	$	6,546,170	$	1,179,547		$	4,914,158	$	452,465

(1) See "Note 12. Derivative Instruments" for additional information related to the fair value by type of contract, of derivatives entered into by the Company.

17

At December 31, 2011	Total		Quoted Prices in Active Markets for Identical  Assets (Level 1)			Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
Fixed maturity investments
U.S. treasuries	$	885,152	$	885,152		$	—		$	—
Agencies	158,561		—			158,561			—
Non-U.S. government (Sovereign debt)	227,912		—			227,912			—
FDIC guaranteed corporate	423,630		—			423,630			—
Non-U.S. government-backed corporate	641,082		—			641,082			—
Corporate	1,206,904		—			1,179,143			27,761
Agency mortgage-backed	441,749		—			441,749			—
Non-agency mortgage-backed	104,771		—			104,771			—
Commercial mortgage-backed	325,729		—			325,729			—
Asset-backed	18,027		—			18,027			—
Total fixed maturity investments	4,433,517		885,152			3,520,604			27,761
Short term investments	905,477		—			905,477			—
Equity investments trading	50,560		50,560			—			—
Other investments
Private equity partnerships	367,909		—			—			367,909
Senior secured bank loan funds	257,870		—			237,815			20,055
Catastrophe bonds	70,999		—			70,999			—
Non-U.S. fixed income funds	28,862		—			28,862			—
Hedge funds	21,344		—			14,782			6,562
Miscellaneous other investments	2,000		—			—			2,000
Total other investments	748,984		—			352,458			396,526
Other assets and (liabilities)
Assumed and ceded (re)insurance contracts	2,115		—			—			2,115
Derivatives (1)	3,312		707			(6,293		)	8,898
Other	10,644		(6,869		)	—			17,513
Total other assets and (liabilities)	16,071		(6,162		)	(6,293		)	28,526
	$	6,154,609	$	929,550		$	4,772,246		$	452,813

(1) See "Note 12. Derivative Instruments" for additional information related to the fair value by type of contract, of derivatives entered into by the Company.

Level 1 and Level 2 Assets and Liabilities Measured at Fair Value

Fixed Maturity Investments

Fixed maturity investments included in Level 1 consist of the Company's investments in U.S. treasuries. Fixed maturity investments included in Level 2 are agencies, non-U.S. government, Federal Deposit Insurance Company ("FDIC") guaranteed corporate, non-U.S. government-backed corporate, corporate, agency mortgage-backed, non-agency mortgage-backed, commercial mortgage-backed and asset-backed fixed maturity investments.

18

The Company’s fixed maturity investments portfolios are primarily priced using pricing services, such as index providers and pricing vendors, as well as broker quotations. In general, the pricing vendors provide pricing for a high volume of liquid securities that are actively traded. For securities that do not trade on an exchange, the pricing services generally utilize market data and other observable inputs in matrix pricing models to determine month end prices. Observable inputs include benchmark yields, reported trades, broker-dealer quotes, issuer spreads, bids, offers, reference data and industry and economic events. Index pricing generally relies on market traders as the primary source for pricing, however models are also utilized to provide prices for all index eligible securities. The models use a variety of observable inputs such as benchmark yields, transactional data, dealer runs, broker-dealer quotes and corporate actions. Prices are generally verified using third party data. Securities which are priced by an index provider are generally included in the index.

In general, broker-dealers value securities through their trading desks based on observable inputs. The methodologies include mapping securities based on trade data, bids or offers, observed spreads, and performance on newly issued securities. Broker-dealers also determine valuations by observing secondary trading of similar securities. Prices obtained from broker quotations are considered non-binding, however they are based on observable inputs and by observing secondary trading of similar securities obtained from active, non-distressed markets.

The Company considers these Level 2 inputs as they are corroborated with other market observable inputs. The techniques generally used to determine the fair value of our fixed maturity investments are detailed below by asset class.

U.S. treasuries

Level 1 - At June 30, 2012, the Company’s U.S. treasuries fixed maturity investments are primarily priced by pricing services and had a weighted average effective yield of 0.5% and a weighted average credit quality of AA (December 31, 2011 - 0.6% and AA, respectively). When pricing these securities, the pricing services utilize daily data from many real time market sources, including active broker dealers. Certain data sources are regularly reviewed for accuracy to attempt to ensure the most reliable price source is used for each issue and maturity date.

Agencies

Level 2 - At June 30, 2012, the Company’s agency fixed maturity investments had a weighted average effective yield of 0.7% and a weighted average credit quality of AA (December 31, 2011 - 0.5% and AA, respectively). The issuers of the Company’s agency fixed maturity investments primarily consist of the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation and other agencies. Fixed maturity investments included in agencies are primarily priced by pricing services. When evaluating these securities, the pricing services gather information from market sources and integrates other observations from markets and sector news. Evaluations are updated by obtaining broker dealer quotes and other market information including actual trade volumes, when available. The fair value of each security is individually computed using analytical models which incorporate option adjusted spreads and other daily interest rate data.

Non-U.S. government (Sovereign debt)

Level 2 - Non-U.S. government fixed maturity investments held by the Company at June 30, 2012, had a weighted average effective yield of 2.2% and a weighted average credit quality of AA (December 31, 2011 - 2.3% and AA, respectively). The issuers of securities in this sector are non-U.S. governments and their respective agencies as well as supranational organizations. Securities held in these sectors are primarily priced by pricing services who employ proprietary discounted cash flow models to value the securities. Key quantitative inputs for these models are daily observed benchmark curves for treasury, swap and high issuance credits. The pricing services then apply a credit spread for each security which is developed by in-depth and real time market analysis. For securities in which trade volume is low, the pricing services utilize data from more frequently traded securities with similar attributes. These models may also be supplemented by daily market and credit research for international markets.

19

FDIC guaranteed corporate

Level 2 - The Company’s FDIC guaranteed corporate fixed maturity investments had a weighted average effective yield of 0.3% and a weighted average credit quality of AA at June 30, 2012 (December 31, 2011 - 0.3% and AA, respectively). The issuers consist of well known corporate issuers who participate in the FDIC program. The Company’s FDIC guaranteed corporate fixed maturity investments are primarily priced by pricing services. When evaluating these securities, the pricing services gather information from market sources regarding the issuer of the security and obtain credit data, as well as other observations, from markets and sector news. Evaluations are updated by obtaining broker dealer quotes and other market information including actual trade volumes, when available. The pricing services also consider the specific terms and conditions of the securities, including any specific features which may influence risk. In certain instances, securities are individually evaluated using a spread which is added to the U.S. treasury curve.

Non-U.S. government-backed corporate

Level 2 - Non-U.S. government-backed corporate fixed maturity investments had a weighted average effective yield of 1.2% and a weighted average credit quality of AAA at June 30, 2012 (December 31, 2011 - 1.4% and AAA, respectively). Non-U.S. government-backed fixed maturity investments are primarily priced by pricing services who employ proprietary discounted cash flow models to value the securities. Key quantitative inputs for these models are daily observed benchmark curves for treasury, swap and high issuance credits. The pricing services then apply a credit spread to the respective curve for each security which is developed by in-depth and real time market analysis. For securities in which trade volume is low, the pricing services utilize data from more frequently traded securities with similar attributes. These models may also be supplemented by daily market and credit research for international markets.

Corporate

Level 2 - At June 30, 2012, the Company’s corporate fixed maturity investments principally consist of U.S. and international corporations and had a weighted average effective yield of 3.1% and a weighted average credit quality of A (December 31, 2011 - 4.2% and A, respectively). The Company’s corporate fixed maturity investments are primarily priced by pricing services. When evaluating these securities, the pricing services gather information from market sources regarding the issuer of the security and obtain credit data, as well as other observations, from markets and sector news. Evaluations are updated by obtaining broker dealer quotes and other market information including actual trade volumes, when available. The pricing services also consider the specific terms and conditions of the securities, including any specific features which may influence risk. In certain instances, securities are individually evaluated using a spread which is added to the U.S. treasury curve or a security specific swap curve as appropriate.

Agency mortgage-backed

Level 2 - At June 30, 2012, the Company’s agency mortgage-backed fixed maturity investments included agency residential mortgage-backed securities with a weighted average effective yield of 1.5%, a weighted average credit quality of AA and a weighted average life of 2.8 years (December 31, 2011 - 1.5%, AA and 2.6 years, respectively). The Company’s agency mortgage-backed fixed maturity investments are primarily priced by pricing services using a mortgage pool specific model which utilizes daily inputs from the active and the to be announced ("TBA") market which is very liquid, as well as the U.S. treasury market. The model also utilizes additional information, such as the weighted average maturity, weighted average coupon and other available pool level data which is provided by the sponsoring agency. Valuations are also corroborated with daily active market quotes.

Non-agency mortgage-backed

Level 2 - The Company’s non-agency mortgage-backed fixed maturity investments include non-agency prime residential mortgage-backed and non-agency Alt-A fixed maturity investments. The Company has no fixed maturity investments classified as sub-prime held in its fixed maturity investments portfolio. At June 30, 2012, the Company’s non-agency prime residential mortgage-backed fixed maturity investments have a weighted average effective yield of 5.2%, a weighted average credit quality of BBB, and a weighted average life of 5.2 years (December 31, 2011 - 8.0%, BBB and 3.3 years, respectively). The Company’s non-agency Alt-A fixed maturity investments held at June 30, 2012 have a weighted average effective yield

20

of 7.0%, a weighted average credit quality of BBB and a weighted average life of 5.5 years (December 31, 2011 - 9.1%, A and 3.8 years, respectively) . Securities held in these sectors are primarily priced by pricing services using an option adjusted spread (”OAS”) model or other relevant models, which principally utilize inputs including benchmark yields, available trade information or broker quotes, and issuer spreads. The pricing services also review collateral prepayment speeds, loss severity and delinquencies among other collateral performance indicators for the securities valuation, when applicable.

Commercial mortgage-backed

Level 2 - The Company’s commercial mortgage-backed fixed maturity investments held at June 30, 2012 have a weighted average effective yield of 2.5%, a weighted average credit quality of AA, and a weighted average life of 3.8 years (December 31, 2011 - 3.2%, AA and 4.2 years, respectively). Securities held in these sectors are primarily priced by pricing services. The pricing services apply dealer quotes and other available trade information such as bid and offers, prepayment speeds which may be adjusted for the underlying collateral or current price data, the U.S. treasury curve and swap curve as well as cash settlement. The pricing services discount the expected cash flows for each security held in this sector using a spread adjusted benchmark yield based on the characteristics of the security.

Asset-backed

Level 2 - At June 30, 2012, the Company’s asset-backed fixed maturity investments had a weighted average effective yield of 2.5%, a weighted average credit quality of AAA and a weighted average life of 3.8 years (December 31, 2011 - 0.9%, AAA and 1.8 years, respectively). The underlying collateral for the Company’s asset-backed fixed maturity investments primarily consists of student loans, credit card receivables, auto loans and other receivables. Securities held in these sectors are primarily priced by pricing services. The pricing services apply dealer quotes and other available trade information such as bids and offers, prepayment speeds which may be adjusted for the underlying collateral or current price data, the U.S. treasury curve and swap curve as well as cash settlement. The pricing services determine the expected cash flows for each security held in this sector using historical prepayment and default projections for the underlying collateral and current market data. In addition, a spread is applied to the relevant benchmark and used to discount the cash flows noted above to determine the fair value of the securities held in this sector.

Short Term Investments

Level 2 - The fair value of the Company's portfolio of short term investments are generally determined using amortized cost which approximates fair value and, in certain cases, in a manner similar to the Company’s fixed maturity investments noted above.

Equity Investments, Classified as Trading

Level 1 - The fair value of the Company's portfolio of equity investments, classified as trading are primarily priced by pricing services, reflecting the closing price quoted for the final trading day of the period. When pricing these securities, the pricing services utilize daily data from many real time market sources, including active broker dealers and applicable securities exchanges. All data sources are regularly reviewed for accuracy to attempt to ensure the most reliable price source is used for each issue.

Other investments

Senior secured bank loan funds

Level 2 - At June 30, 2012, the Company’s investments in senior secured bank loan funds include funds that invest primarily in bank loans and other senior debt instruments. The fair value of the Company’s senior secured bank loan funds are determined using the net asset value per share of the funds. Investments of $246.6 million are redeemable, in part on a monthly basis, or in whole over a three month period.

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Catastrophe bonds

Level 2 - The Company's other investments include investments in catastrophe bonds which are recorded at fair value. The fair value of the Company's investments in catastrophe bonds is based on broker or underwriter bid indications.

Non-U.S. fixed income funds

Level 2 - The Company’s non-U.S. fixed income funds invested primarily in non-U.S. convertible securities. The fair values of the investments in this category were estimated using the net asset value per share of the investments which were provided by third parties such as the relevant investment manager or administrator. During April 2012, the Company fully redeemed its remaining investment in non-U.S. fixed income funds at the then net asset value per share.

Hedge funds

Level 2 - The Company has investments in hedge funds that pursue multiple strategies. The fair values of the Company’s hedge funds are determined by adjusting the previous period's reported net asset value, which is generally one month in arrears, for an estimated periodic rate of return obtained from the respective investment manager.

For each respective hedge fund investment, the Company obtains and reviews the valuation methodology used by the investment manager and the latest audited financial statements to attempt to ensure that the hedge fund investment is following fair value principles consistent with GAAP in determining the net asset value of each investor's interest.

During June 2012, the Company fully redeemed the portion of its investment in hedge funds which the Company had considered Level 2 in the fair value hierarchy, at the then net asset value per share.

Other assets and liabilities

Derivatives

Level 1 and Level 2 - Other assets and liabilities include certain other derivatives entered into by the Company. The fair value of these transactions include certain exchange traded foreign currency forward contracts which are considered Level 1, and certain credit derivatives, determined using standard industry valuation models and considered Level 2, as the inputs to the valuation model are based on observable market inputs, including credit spreads, credit ratings of the underlying referenced security, the risk free rate and the contract term.

Other

Level 1 - The liabilities measured at fair value and included in Level 1 at June 30, 2012 of $4.6 million are principally cash settled restricted stock units (“CSRSU”) that form part of the Company's compensation program. The fair value of the Company's CSRSUs is determined using observable exchange traded prices for the Company's common shares.

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Level 3 Assets and Liabilities Measured at Fair Value

Below is a summary of quantitative information regarding the significant observable and unobservable inputs (Level 3) used in determining the fair value of assets and liabilities measured at fair value on a recurring basis:

At June 30, 2012	Fair Value (Level 3)		Valuation Technique	Unobservable (U) and Observable (O) Inputs	Low			High			Weighted Average or Actual
Fixed maturity investments
Corporate	$	17,521	Discounted cash flow ("DCF")	Credit spread (U)	n/a			n/a			4.6	%
				Illiquidity premium (U)	n/a			n/a			1.0	%
				Risk-free rate (O)	n/a			n/a			0.2	%
				Dividend rate (O)	n/a			n/a			5.9	%
	10,254		Internal valuation model	Private transaction (U)	n/a			n/a			See below
Total fixed maturity investments	27,775
Other investments
Private equity partnerships	360,268		Net asset valuation	Estimated performance (U)	(19.7		)%	12.6		%	(1.4	)%
Senior secured bank loan funds	22,724		Net asset valuation	Estimated performance (U)	n/a			n/a			0.4	%
Hedge funds	6,243		Net asset valuation	Estimated performance (U)	(0.4		)%	3.0		%	1.9	%
Miscellaneous other investments	1,270		DCF	Illiquidity premium (U)	n/a			n/a			1.0	%
				Risk-free rate (O)	n/a			n/a			0.5	%
				Credit spread (U)	n/a			n/a			7.4	%
Total other investments	390,505
Other assets and (liabilities)
Assumed and ceded (re)insurance contracts	9,689		Internal valuation model	Net premiums written (O)	—			$12.3 million			See below
				Contract period (O)	183 days			365 days			See below
				Net reserve for claims and claim expenses (U)	—			—			See below
Weather and energy related derivatives	9,081		Spread option; Quanto; Black Scholes; Simulation	Correlation (U)	0			1			See below
				Volatility (U)	9.4		%	525.0		%	See below
				Commodity curve (U)	$	2.62		$	200.00		See below
				Weather curve (U)	19			5,000			See below
				Counterparty default risk (U)	0.0		%	22.5		%	See below
Other	14,165		Net asset valuation	Estimated performance (U)	n/a			n/a			See below
	1,250		Internal valuation model	Private transaction (U)	n/a			n/a			See below
Total other assets and (liabilities)	34,185
	$	452,465

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Fixed Maturity Investments

Corporate

Level 3 -Included in the Company's corporate fixed maturity investments is an investment with a fair value of $17.5 million in the preferred equity of a property and casualty insurance group organized to market residential property insurance in North America. The Company measures the fair value of this investment using a DCF model and seeks to incorporate all relevant information reasonably available to it. The Company considers the contractual agreement which stipulates the methodology for calculating a dividend rate to be paid upon liquidation, conversion or redemption. At June 30, 2012, the dividend rate was 5.9%. In addition, the Company has estimated an illiquidity premium of 1.0% and a risk-free rate of 0.2%. To ensure the estimate for fair value determined using the DCF model is reasonable, the Company reviews private market comparables of similar investments, if available, and in particular, credit ratings of other private market comparables for similar investments to determine the appropriateness of its estimate of fair value using a DCF model. The fair value of the Company's investment in corporate fixed maturity investments determined by a DCF model is positively correlated to the dividend rate, and inversely correlated to the credit spread, illiquidity premium and the risk-free rate.

In addition, the Company's corporate fixed maturity investments include an investment with a fair value of $10.3 million at June 30, 2012 in the preferred equity of a company that provides insurance for a variety of veterinarian costs, including surgeries, medication and diagnostic testing. When utilizing an internal valuation model to determine the fair value of this investment, the Company uses a combination of quantitative and qualitative factors, which may include, but are not limited to, discounted cash flow analysis, financial statement analysis, budgets and forecasts, capital transactions and third party valuations. In circumstances where a private market transaction has recently occurred, the Company will evaluate the comparableness of that transaction and incorporate into its internal valuation model accordingly. Recent private market transactions of investments similar to that held by the Company have been used to determine the fair value of $10.3 million at June 30, 2012, as the Company believes it represents the price that would be received upon the sale of its investment in an orderly transaction among market participants. Consequently, should future relevant private market transactions occur, the Company will re-evaluate the information available used to determine fair value of this investment and record any adjustments to fair value in its consolidated statements of operations.

Other investments

Private equity partnerships

Level 3 - Included in the Company’s $360.3 million of investments in private equity partnerships at June 30, 2012 are alternative asset limited partnerships (or similar corporate structures) that invest in certain private equity asset classes including U.S. and global leveraged buyouts; mezzanine investments; distressed securities; real estate; and oil, gas and power. The fair value of private equity partnership investments is based on current estimated net asset values established in accordance with the governing documents of such investments and is obtained from the investment manager or general partner of the respective entity. The type of underlying investments held by the investee which form the basis of the net asset valuation include assets such as private business ventures, for which the Company does not have access to financial information. As a result, the Company is unable to corroborate the fair value measurement of the underlying investments of the private equity partnership and therefore requires significant management judgment to determine the fair value of the private equity partnership. In circumstances where there is a reporting lag between the current period end reporting date and the reporting date of the latest fund valuation, the Company estimates the fair value of these funds by starting with the prior month or quarter-end fund valuations, adjusting these valuations for actual capital calls, redemptions or distributions, as well as the impact of changes in foreign currency exchange rates, and then estimating the return for the current period. In circumstances in which the Company estimates the return for the current period, all relevant information reasonably available to the Company is utilized. This principally includes preliminary estimates reported to the Company by its fund managers, obtaining the valuation of underlying portfolio investments where such underlying investments are publicly traded and therefore have a readily observable price, using information that is available to the Company with respect to the underlying investments, reviewing various indices for similar investments or asset classes, as well as estimating returns based on the results of similar

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types of investments for which the Company has obtained reported results, or other valuation methods, where possible. The range of such current estimated periodic returns for the six months ended June 30, 2012 was negative 19.7% to positive 12.6% with a weighted average of negative 1.4%. The fair value of the Company's investment in private equity partnerships is positively correlated to the estimated periodic rate of return. The Company also considers factors such as recent financial information, the value of capital transactions with the partnership and management’s judgment regarding whether any adjustments should be made to the net asset value. For each respective private equity partnership, the Company obtains and reviews the valuation methodology used by the investment manager or general partner and the latest audited financial statements to ensure that the investment partnership is following fair value principles consistent with GAAP in determining the net asset value of each limited partner's interest.

Senior secured bank loan funds

Level 3 - The Company has a $22.7 million investment in a closed end fund which invests primarily in loans. The Company has no right to redeem its investment in this fund. The Company’s investment in this fund is valued using estimated monthly net asset valuations received from the investment manager. The lock up provisions in this fund result in a lack of current observable market transactions between the fund participants and the fund, and therefore, the Company considers the fair value of its investment in this fund to be determined using Level 3 inputs. The Company obtains and reviews the latest audited financial statements to attempt to ensure that the fund is following fair value principles consistent with GAAP in determining the net asset value.

Hedge funds

Level 3 - The Company has $6.2 million of hedge fund investments that are invested in so called "side pockets" or illiquid investments. In these instances, the Company generally does not have the right to redeem its interest, and as such, the Company classifies this portion of its investment as Level 3. The fair value of these illiquid investments are determined by adjusting the previous periods' reported net asset value (generally one month in arrears) for an estimated periodic rate of return obtained from the respective investment manager.

For each respective hedge fund investment, the Company obtains and reviews the valuation methodology used by the investment manager and the latest audited financial statements to ensure that the hedge fund investment is following fair value principles consistent with GAAP in determining the net asset value.

Miscellaneous other investments

Level 3 - Included in miscellaneous other investments is a loan to a third party with a fair value of $1.3 million. The Company determines the fair value of this loan using a DCF model and endeavors to incorporate all relevant information reasonably available, including the outstanding principal amount, interest rate inherent in the loan as determined using the 3-month LIBOR, credit spread and an illiquidity premium. The fair value of this loan is inversely correlated to the 3-month LIBOR, credit spread and illiquidity premium.

Other assets and liabilities

Assumed and ceded (re)insurance contracts

Level 3 - The $9.7 million fair value of the Company's assumed and ceded (re)insurance contracts accounted for at fair value is obtained through the use of an internal valuation model with the inputs to the internal valuation model based on proprietary data as observable market inputs are not available. The most significant unobservable inputs are the reserve for claims and claim expenses and losses recoverable. Generally, an increase (decrease) in the reserve for claims and claim expenses, or a decrease (increase) in losses recoverable, would result in a decrease (increase) to the fair value of the Company's assumed and ceded (re)insurance contracts.

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Derivatives

Level 3 - Derivatives measured at fair value include $9.1 million of proprietary, non-exchange traded derivative-based risk management products primarily to address weather and energy risks, and hedging and trading activities related to these risks. The trading markets for these derivatives are generally linked to energy and agriculture commodities, weather and other natural phenomena and in instances where market prices are not available, the Company uses industry or internally developed valuation techniques such as spread option, Black Scholes, quanto and simulation modeling to determine fair value and are considered Level 3. These models may reference prices for similar instruments.

Observable and unobservable inputs to these valuation techniques vary by contract requirements and commodity type, are validated using market-based or independently sourced parameters where applicable and would typically include the following, if applicable, dependent on contract requirements and commodity type:

• observable inputs: contract price, notional, option strike, term to expiry, interest rate, contractual limits;

• unobservable inputs: correlation; and

• both observable and unobservable: spot and forward volatilities, forward commodity price, forward weather curve, counterparty credit risk.

The range of each unobservable input could vary based on the specific commodity, including, but not limited to natural gas, electricity, crude, liquids, temperature or precipitation. Due to the diversity of the portfolio, the range of unobservable inputs could be wide-spread as reflected in the above table on quantitative information.

If a trade has one or more significant valuation inputs that are unobservable, such trades are initially valued at the transaction price, which is considered to be the best initial estimate of fair value. Subsequent to the initial valuation, the Company updates market observable inputs to reflect observable market changes. The unobservable inputs are validated at each reporting period and are only changed when corroborated by evidence such as similar market transactions, third-party pricing services and/or broker or dealer quotations or other empirical market data. The Company seeks to use broker quotes in less liquid markets.

Changes in any or all of the unobservable inputs listed above may contribute positively or negatively to the overall portfolio fair value depending upon the underlying position. In general, movements in weather curves are the largest contributing factor that impact fair value. However, trades valued using unobservable inputs represent a small percentage of the total number of transactions in the portfolio.

Pricing models are internally approved by the Company's Risk Committee prior to implementation and are reviewed periodically.

Other

Level 3 - The Company has an investment of $14.2 million at June 30, 2012 in the common equity of a mortgage insurance company which provides private capital to lenders and investors that supports financing for homeowner mortgages. The fair value of this investment is based on the unadjusted net asset value obtained from the management of the mortgage insurance company. The fair value of the Company's investment is positively correlated to the net asset valuation. The Company also considers factors such as recent financial information, the value of capital transactions with the mortgage insurance company and management's judgment regarding whether any adjustments should be made to the net asset value.

The Company also has an investment in the preferred equity of a company that develops online risk management products primarily focused on motor fuels risk, more specifically, structuring products, sourcing the risk and facilitating the settlement of capital. The fair value of this investment at June 30, 2012 of $1.3 million was determined using recent private market transactions. In instances where private market transactions are not available, the fair value is measured using a number of qualitative and quantitative factors, including but not limited to a net asset estimation of the company, projected earnings, private market transactions, and any other information that may be available to the Company. At June 30, 2012, the Company determined that the fair value of its investment was appropriate when compared to the net asset position of the company and recent private market transactions. Should the net asset position of the company increase, the fair value of the Company's investment would also increase.

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Below is a reconciliation of the beginning and ending balances, for the periods shown, of assets and liabilities measured at fair value on a recurring basis using Level 3 inputs. Interest and dividend income are included in net investment income and are excluded from the reconciliation.

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Fixed maturity investments, trading			Other investments			Other assets and (liabilities)			Total
Balance – April 1, 2012	$	27,838		$	418,537		$	48,145		$	494,520
Total unrealized losses
Included in net investment income	(63		)	(13,013		)	—			(13,076		)
Included in other income	—			—			(15,576		)	(15,576		)
Total realized gains
Included in net investment income	—			—			—			—
Included in other income	—			—			22,076			22,076
Total foreign exchange (losses) gains	—			(1,394		)	371			(1,023		)
Purchases	—			5,956			40,878			46,834
Sales	—			—			(91,655		)	(91,655		)
Settlements	—			(19,581		)	29,946			10,365
Net transfers into Level 3	—			—			—			—
Balance – June 30, 2012	$	27,775		$	390,505		$	34,185		$	452,465
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	$	(63	)	$	(13,013	)	$	—		$	(13,076	)
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	$	—		$	—		$	8,019		$	8,019

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Fixed maturity investments, trading		Other investments			Other assets and (liabilities)			Total
Balance – January 1, 2012	$	27,761	$	396,526		$	28,526		$	452,813
Total unrealized gains (losses)
Included in net investment income	14		16,094			—			16,108
Included in other loss	—		—			2,987			2,987
Total realized gains
Included in net investment income	—		—			—			—
Included in other loss	—		—			(33,232		)	(33,232		)
Total foreign exchange losses	—		(664		)	(6		)	(670		)
Purchases	—		18,645			50,159			68,804
Sales	—		—			(105,086		)	(105,086		)
Settlements	—		(40,096		)	90,837			50,741
Net transfers into Level 3	—		—			—			—
Balance – June 30, 2012	$	27,775	$	390,505		$	34,185		$	452,465
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	$	14	$	16,094		$	—		$	16,108
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	$	—	$	—		$	9,678		$	9,678

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	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Fixed maturity investments trading			Other investments			Other assets  and (liabilities)			Total
Balance – April 1, 2011	$	21,826		$	381,815		$	68,380		$	472,021
Total unrealized (losses) gains
Included in net investment income	(562		)	6,135			—			5,573
Included in other loss	—			—			91			91
Total realized gains
Included in net investment income	—			—			—			—
Included in other loss	—			—			3,307			3,307
Total foreign exchange losses	—			553			(91		)	462
Purchases	—			11,219			8,984			20,203
Sales	—			—			(6,864		)	(6,864		)
Settlements	—			(18,599		)	(815		)	(19,414		)
Net transfers into Level 3	—			—			—			—
Balance – June 30, 2011	$	21,264		$	381,123		$	72,992		$	475,379
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	$	(562	)	$	6,135		$	—		$	5,573
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	$	—		$	—		$	4,195		$	4,195

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Fixed maturity investments trading			Other investments			Other assets  and (liabilities)			Total
Balance – January 1, 2011	$	21,785		$	362,102		$	16,499		$	400,386
Total unrealized (losses) gains
Included in net investment income	(521		)	29,892			—			29,371
Included in other income	—			—			41,599			41,599
Total realized gains
Included in net investment income	—			—			—			—
Included in other income	—			—			12,822			12,822
Total foreign exchange losses	—			1,922			(142		)	1,780
Purchases	—			28,684			10,615			39,299
Sales	—			—			(11,024		)	(11,024		)
Settlements	—			(41,477		)	2,623			(38,854		)
Net transfers into Level 3	—			—			—			—
Balance – June 30, 2011	$	21,264		$	381,123		$	72,992		$	475,379
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	$	(521	)	$	29,892		$	—		$	29,371
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	$	—		$	—		$	48,598		$	48,598

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Financial Instruments Disclosed, But Not Carried, at Fair Value

The Company uses various financial instruments in the normal course of its business. The Company's insurance contracts are excluded from fair value of financial instruments accounting guidance, unless the Company elects the fair value option, and therefore, are not included in the amounts discussed herein. The carrying values of cash, accrued interest, receivables for investments sold, certain other assets, payables for investments purchased, certain other liabilities, and other financial instruments not included herein approximated their fair values.

Senior Notes

In January 2003, RenaissanceRe issued $100.0 million, which represents the carrying amount on the Company’s consolidated balance sheet, of 5.875% Senior Notes due February 15, 2013, with interest on the notes payable on February 15 and August 15 of each year. At June 30, 2012, the fair value of the 5.875% Senior Notes was $102.2 million (December 31, 2011 – $103.4 million).

In March 2010, RenRe North America Holdings Inc. (“RRNAH”) issued $250.0 million of 5.75% Senior Notes due March 15, 2020, with interest on the notes payable on March 15 and September 15 of each year. At June 30, 2012, the fair value of the 5.75% Senior Notes was $264.1 million (December 31, 2011 - $263.0 million).

The fair value of RenaissanceRe’s 5.875% Senior Notes and RRNAH’s 5.75% Senior Notes is determined using indicative market pricing obtained from third-party service providers, which the Company considers Level 2 in the fair value hierarchy. There have been no changes during the period in the Company's valuation technique used to determine the fair value of its Senior Notes.

The Fair Value Option for Financial Assets and Financial Liabilities

The Company has elected to account for certain assets and liabilities at fair value using the guidance under FASB ASC Topic Financial Instruments as the Company believes it represents the most meaningful measurement basis for these assets and liabilities. Below is a summary of the balances the Company has elected to account for at fair value:

	June 30, 2012		December 31, 2011
Other investments	$	743,568	$	748,984
Other assets	$	25,104	$	19,628

Included in net investment income for the three and six months endedJune 30, 2012 was net unrealized (losses) gains of $(13.4) millionand$21.9 million related to the changes in fair value of other investments (2011 – $5.7 millionand$33.7 million, respectively). Net unrealized losses related to the changes in the fair value of other assets and liabilities recorded in other (loss) income was $0.4 millionand$2.5 million for the three and six months endedJune 30, 2012 (2011 – $(0.8) millionand$43.3 million, respectively).

Measuring the Fair Value of Other Investments Using Net Asset Valuations

The table below shows the Company’s portfolio of other investments measured using net asset valuations:

At June 30, 2012	Fair Value		Unfunded Commitments		Redemption Frequency	Redemption Notice Period (Minimum Days)	Redemption Notice Period (Maximum Days)
Private equity partnerships	$	360,268	$	99,125	See below	See below	See below
Senior secured bank loan funds	269,317		2,901		See below	See below	See below
Hedge funds	6,243		—		See below	See below	See below
Total other investments measured using net asset valuations	$	635,828	$	102,026

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Private equity partnerships – Included in the Company’s investments in private equity partnerships are alternative asset limited partnerships (or similar corporate structures) that invest in certain private equity asset classes including U.S. and global leveraged buyouts; mezzanine investments; distressed securities; real estate; and oil, gas and power. The fair values of the investments in this category have been estimated using the net asset value of the investments, as discussed in detail above. The Company generally has no right to redeem its interest in any of these private equity partnerships in advance of dissolution of the applicable partnership. Instead, the nature of these investments is that distributions are received by the Company in connection with the liquidation of the underlying assets of the applicable limited partnership. It is estimated that the majority of the underlying assets of the limited partnerships would liquidate over 7 to 10 years from inception of the limited partnership.

Senior secured bank loan funds – The Company’s investment in senior secured bank loan funds includes funds that invest primarily in bank loans and other senior debt instruments. The fair values of the investments in this category have been determined using the net asset value per share of the funds or the estimated net asset per share where applicable, as discussed in detail above. Investments of $246.6 million are redeemable, in part on a monthly basis, or in whole over a three month period.

The Company also has a $22.7 million investment in a closed end fund which invests in loans. The Company has no right to redeem its investment in this fund.

Hedge funds – The Company invests in hedge funds that pursue multiple strategies. The fair values of the investments in this category are estimated using the net asset value per share of the funds, as discussed in detail above. The remaining portion of the Company's investments in hedge funds at June 30, 2012, are $6.2 million of so called “side pocket” investments which are not redeemable at the option of the shareholder. As noted above, the Company fully redeemed the remaining non-side pocket investments in hedge funds during June 2012. The Company has retained its interest in the side pocket investments until the underlying investments attributable to such side pockets are liquidated, realized or deemed realized at the discretion of the fund manager.

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NOTE 6.CEDED REINSURANCE

The Company purchases reinsurance and other protection to manage its risk portfolio and to reduce its exposure to large losses. The Company currently has in place contracts that provide for recovery of a portion of certain claims and claim expenses, generally in excess of various retentions or on a proportional basis. In addition to loss recoveries, certain of the Company’s ceded reinsurance contracts provide for recoveries of additional premiums, reinstatement premiums and for lost no-claims bonuses, which are incurred when losses are ceded to other reinsurance contracts. The Company remains liable to the extent that any reinsurance company fails to meet its obligations.

The following tables set forth the effect of reinsurance and retrocessional activity on premiums written and earned and on net claims and claim expenses incurred:

Three months ended June 30,	2012			2011
Premiums written
Direct	$	11,736		$	9,309
Assumed	655,600			632,254
Ceded	(239,706		)	(213,568		)
Net premiums written	$	427,630		$	427,995
Premiums earned
Direct	$	7,950		$	4,033
Assumed	341,620			306,757
Ceded	(105,154		)	(93,615		)
Net premiums earned	$	244,416		$	217,175
Claims and claim expenses
Gross claims and claim expenses incurred	$	70,101		$	164,670
Claims and claim expenses recovered	(20,550		)	(13,409		)
Net claims and claim expenses incurred	$	49,551		$	151,261

Six months ended June 30,	2012			2011
Premiums written
Direct	$	20,199		$	15,561
Assumed	1,311,288			1,236,507
Ceded	(411,282		)	(371,498		)
Net premiums written	$	920,205		$	880,570
Premiums earned
Direct	$	15,737		$	6,515
Assumed	698,906			701,292
Ceded	(191,562		)	(185,091		)
Net premiums earned	$	523,081		$	522,716
Claims and claim expenses
Gross claims and claim expenses incurred	$	85,383		$	1,027,993
Claims and claim expenses recovered	(20,280		)	(248,195		)
Net claims and claim expenses incurred	$	65,103		$	779,798

31

NOTE 7.NONCONTROLLING INTERESTS

Redeemable Noncontrolling Interest – DaVinciRe

In October 2001, the Company formed DaVinciRe and DaVinci with other equity investors. RenaissanceRe owns a noncontrolling economic interest in DaVinciRe; however, because RenaissanceRe controls a majority of DaVinciRe’s outstanding voting rights, the consolidated financial statements of DaVinciRe are included in the consolidated financial statements of the Company. The portion of DaVinciRe’s earnings owned by third parties is recorded in the consolidated statements of operations as net (income) loss attributable to noncontrolling interests. The Company's ownership in DaVinciRe was 31.5% at June 30, 2012 (December 31, 2011 - 42.8%).

DaVinciRe shareholders are party to a shareholders agreement (the “Shareholders Agreement”) which provides DaVinciRe shareholders, excluding RenaissanceRe, with certain redemption rights that enable each shareholder to notify DaVinciRe of such shareholder’s desire for DaVinciRe to repurchase up to half of such shareholder’s initial aggregate number of shares held, subject to certain limitations, such as limiting the aggregate of all share repurchase requests to 25% of DaVinciRe’s capital in any given year and satisfying all applicable regulatory requirements. If total shareholder requests exceed 25% of DaVinciRe’s capital, the number of shares repurchased will be reduced among the requesting shareholders pro-rata, based on the amounts desired to be repurchased. Shareholders desiring to have DaVinci repurchase their shares must notify DaVinciRe before March 1 of each year. The repurchase price will be based on GAAP book value as of the end of the year in which the shareholder notice is given, and the repurchase will be effective as of such date. Payment will be made by April 1 of the following year, following delivery of the audited financial statements for the year in which the repurchase was effective. The repurchase price is subject to a true-up for development on outstanding loss reserves after settlement of all claims relating to the applicable years.

Certain third party shareholders of DaVinciRe submitted repurchase notices on or before the required annual redemption notice date of March 1, 2011, in accordance with the Shareholders Agreement. The repurchase notices submitted on or before March 1, 2011, were for shares of DaVinciRe with a GAAP book value of $9.2 million at December 31, 2011. Effective January 1, 2012, DaVinciRe redeemed the shares for $9.2 million, less a $1.8 million reserve holdback.

On June 1, 2011, DaVinciRe completed an equity raise of $100.0 million from new and existing shareholders, including $30.0 million contributed by the Company. As a result of the equity raise, the Company's ownership in DaVinciRe decreased to 42.8% effective June 1, 2011.

Effective January 1, 2012, an existing third party shareholder sold a portion of its shares in DaVinciRe to a new third party shareholder.  In connection with the sale by the existing third party shareholder, DaVinciRe retained a $4.9 million holdback.  In addition, effective January 1, 2012, the Company sold a portion of its shares of DaVinciRe to a separate new third party shareholder.  The Company sold these shares for $98.9 million, net of a $10.0 million reserve holdback due from DaVinciRe.  The Company's ownership in DaVinciRe was 42.8% at December 31, 2011 and subsequent to the above transactions, its ownership interest in DaVinciRe decreased to 34.7% effective January 1, 2012.

Certain third party shareholders of DaVinciRe submitted repurchase notices on or before the required annual redemption notice date of March 1, 2012, in accordance with the Shareholders Agreement.  The repurchase notices submitted on or before March 1, 2012, were for shares of DaVinciRe with a GAAP book value of $50.0 million at June 30, 2012.

On June 1, 2012, DaVinciRe completed an equity raise of $49.3 million from a new third party investor.  In addition, the Company and an existing third party investor each sold $24.7 million in common shares of DaVinciRe to another existing third party investor, for a total of $49.4 million.  In connection with the sale by the Company and the existing third party investor, DaVinciRe retained a $5.0 million holdback, $2.5 million of which is payable to the Company.  As a result of the above transactions, the Company's ownership in DaVinciRe decreased to 31.5% effective January 1, 2012.

The Company expects its ownership in DaVinciRe to fluctuate over time.

32

The activity in redeemable noncontrolling interest – DaVinciRe is detailed in the table below:

	2012		2011
Balance – April 1	$	796,743	$	536,717
Purchase of shares from redeemable noncontrolling interest	—		(446		)
Sale of shares to redeemable noncontrolling interests	70,501		70,000
Comprehensive income:
Net income attributable to redeemable noncontrolling interest	33,634		21,733
Other comprehensive loss attributable to redeemable noncontrolling interest	—		(3		)
Balance – June 30	$	900,878	$	628,001

	2012		2011
Balance – January 1	$	657,727	$	757,655
Purchase of shares from redeemable noncontrolling interest	—		(135,618		)
Sale of shares to redeemable noncontrolling interests	156,169		70,000
Comprehensive income:
Net income (loss) attributable to redeemable noncontrolling interest	86,982		(64,030		)
Other comprehensive loss attributable to redeemable noncontrolling interest	—		(6		)
Balance – June 30	$	900,878	$	628,001

Noncontrolling Interest - Angus Fund L.P. (the “Angus Fund”)

In December 2010, REAL and RenRe Commodity Advisors Inc. (“RRCA”), both wholly owned subsidiaries of the Company, formed the Angus Fund with other equity investors. REAL, the general partner of the Angus Fund, has invested $55 thousand in the Angus Fund, representing a 1.0% ownership interest at June 30, 2012 (December 31, 2011 - $41 thousand and 1.0%, respectively), and RRCA, a limited partner, has invested $2.0 million in the Angus Fund, representing a 35.1% ownership interest at June 30, 2012 (December 31, 2011 - $1.0 million and 24.2%, respectively). The Angus Fund was formed to provide capital to and make investments in companies primarily in the heating oil and propane distribution industries to supplement the Company’s weather and energy risk management operations. The Angus Fund meets the definition of a variable interest entity ("VIE"), therefore the Company evaluated its ownership in the Angus Fund to determine if it is the primary beneficiary. The Company has concluded it is the primary beneficiary of the Angus Fund as it has the power to direct, and has a more than insignificant economic interest in, the activities of the Angus Fund and as such, the financial position and results of operations of the Angus Fund are consolidated. The portion of the Angus Fund's earnings owned by third parties is recorded in the consolidated statements of operations as net (income) loss attributable to noncontrolling interest. The Company expects its ownership in the Angus Fund to fluctuate over time.

The activity in noncontrolling interest is detailed in the table below:

	2012			2011
Balance – April 1	$	3,892		$	3,160
Sale of shares by noncontrolling interest	—			100
Comprehensive income:
Net (loss) income attributable to noncontrolling interest	(10		)	170
Dividends on common shares	29			—
Balance – June 30	$	3,911		$	3,430

33

	2012			2011
Balance – January 1	$	3,340		$	2,889
Sale of shares by noncontrolling interest	300			100
Comprehensive income:
Net income attributable to noncontrolling interest	283			441
Dividends on common shares	(12		)	—
Balance – June 30	$	3,911		$	3,430

NOTE 8.VARIABLE INTEREST ENTITIES

Effective January 1, 2012, the Company formed and launched a new managed joint venture, Upsilon Reinsurance Ltd. (“Upsilon Re”), a Bermuda domiciled special purpose insurer ("SPI"), to provide additional capacity to the worldwide aggregate and per-occurrence retrocessional property catastrophe excess of loss market for the 2012 underwriting year. The original business was written by Renaissance Reinsurance of Europe ("ROE"), a wholly owned subsidiary of RenaissanceRe, and included $37.4 million of gross premiums written. A portion of this business was in turn ceded to Upsilon Re under a fully-collateralized retrocessional reinsurance contract, effective January 1, 2012. In conjunction with the formation and launch of Upsilon Re, $16.8 million of non-voting Class B shares were sold to external investors, and the Company invested $48.8 million in Upsilon Re's non-voting Class B shares, representing a 74.5% ownership interest in Upsilon Re. The Class B shareholders will participate in substantially all of the profits or losses of Upsilon Re while the Class B shares remain outstanding. The holders of Class B shares indemnify Upsilon Re against losses relating to insurance risk and therefore these shares have been accounted for as prospective reinsurance under Financial Accounting Standards Board Accounting Standards Codification Topic Financial Services - Insurance. In addition, another third party investor supplied $17.6 million of capital through a reinsurance participation with ROE alongside Upsilon Re. Inclusive of the third party quota share agreement, the Company has a 61.4% participation in the original risks assumed by ROE. Both Upsilon Re and the third party reinsurance participation related to Upsilon Re are managed by RUM in return for an expense override, as well as a potential underwriting profit commission. Upsilon Re is considered a VIE and the Company is considered the primary beneficiary. As a result, Upsilon Re is consolidated by the Company and all significant inter-company transactions have been eliminated.

The Company's ownership interest in Upsilon Re could change over time, perhaps materially so, and the Company may also elect to underwrite additional risks within Upsilon Re and to write business within Upsilon Re in future underwriting years.

Effective June 1, 2012, the Company formed and launched a new managed joint venture, Timicuan Reinsurance III Limited (“Tim Re III”), a Bermuda domiciled SPI, to provide collateralized reinsurance in respect of a portfolio of Florida reinstatement premium protection ("RPP") contracts. The original business was written by Renaissance Reinsurance and DaVinci, and included $41.1 million of gross premiums written incepting June 1, 2012 and Renaissance Reinsurance and DaVinci ceded $37.7 million to Tim Re III under a fully-collateralized reinsurance contract. In conjunction with the formation and launch of Tim Re III, $44.8 million of non-voting Class B shares were sold to external investors, and the Company invested an additional $10.3 million in Tim Re III's non-voting Class B shares, representing an 18.6% ownership interest in Tim Re III. The Class B shareholders will participate in substantially all of the profits or losses of Tim Re III while the Class B shares remain outstanding. The holders of Class B shares indemnify Tim Re III against losses relating to insurance risk and therefore these shares have been accounted for as prospective reinsurance under Financial Accounting Standards Board Accounting Standards Codification Topic Financial Services - Insurance. In addition, another third party investor supplied $5.2 million of capital through a reinsurance participation with Renaissance Reinsurance and DaVinci, alongside Tim Re III. Both Tim Re III and the third party reinsurance participation related to Tim Re III are managed by RUM in return for a potential underwriting profit commission. Tim Re III is considered a VIE and the Company is considered the primary beneficiary. As a result, Tim Re III is consolidated by the Company and all significant inter-company transactions have been eliminated.

34

NOTE 9.SHAREHOLDERS’ EQUITY

The Board of Directors of RenaissanceRe declared, and RenaissanceRe paid, a dividend of $0.27 per common share to shareholders of record on March 15 and June 15, 2012, respectively.

The Company’s share repurchase program may be effected from time to time, depending on market conditions and other factors, through open market purchases and privately negotiated transactions. Unless terminated earlier by resolution of the Company’s Board of Directors, the program will expire when the Company has repurchased the full value of the shares authorized. The Company’s decision to repurchase common shares will depend on, among other matters, the market price of the common shares and the capital requirements of the Company. During the six months endedJune 30, 2012, the Company repurchased 1.2 million shares in open market transactions, at an aggregate cost of $91.6 million, and at an average share price of $74.57. Subsequent to June 30, 2012 and through the period ending July 30, 2012, the Company repurchased approximately 71 thousand common shares in open market transactions at an aggregate cost of $5.3 million and at an average share price of $74.21. On February 22, 2012, the Company approved an increase in its authorized share repurchase program to an aggregate amount of $500.0 million. At June 30, 2012, $412.0 million remained available for repurchase under the Board authorized share repurchase program. See "Part II, Item 2 - Unregistered Sales of Equity Securities and use of Proceeds" for additional information.

In December 2006, the Company raised $300.0 million through the issuance of 12 million Series D Preference Shares at $25 per share and in March 2004, the Company raised $250.0 million through the issuance of 10 million Series C Preference Shares at $25 per share. The Series D and Series C Preference Shares may be redeemed at $25 per share at the Company’s option on or after December 1, 2011 and March 23, 2009, respectively. Dividends on the Series D and Series C Preference Shares are cumulative from the date of original issuance and are payable quarterly in arrears at 6.60% and 6.08%, respectively, when, if, and as declared by the Board of Directors. The preference shares have no stated maturity and are not convertible into any other securities of the Company. Generally, the preference shares have no voting rights. Whenever dividends payable on the preference shares are in arrears (whether or not such dividends have been earned or declared) in an amount equivalent to dividends for six full dividend periods (whether or not consecutive), the holders of the preference shares, voting as a single class regardless of class or series, will have the right to elect two directors to the Board of Directors of the Company.

During the six months endedJune 30, 2012, the Company declared and paid $17.5 million in preference share dividends (2011 – $17.5 million).

35

NOTE 10.EARNINGS PER SHARE

The Company accounts for its earnings per share in accordance with FASB ASC Topic Earnings per Share. Basic earnings per common share is based on weighted average common shares and excludes any dilutive effects of stock options and restricted stock. Diluted earnings per common share assumes the exercise of all dilutive stock options and restricted stock grants. In accordance with FASB ASC Topic Earnings per Share, earnings per share calculations use average common shares outstanding - basic, when the Company is in a net loss position for the period.

The following table sets forth the computation of basic and diluted earnings per common share:

Three months ended June 30,	2012			2011
(thousands of shares)
Numerator:
Net income available to RenaissanceRe common shareholders	$	142,270		$	24,764
Amount allocated to participating common shareholders (1)	(2,236		)	(461		)
Net income allocated to RenaissanceRe common shareholders	$	140,034		$	24,303
Denominator:
Denominator for basic income per RenaissanceRe common share - weighted average common shares	50,278			50,493
Per common share equivalents of employee stock options and restricted shares	734			557
Denominator for diluted income per RenaissanceRe common share - adjusted weighted average common shares and assumed conversions	51,012			51,050
Basic income per RenaissanceRe common share	$	2.78		$	0.48
Diluted income per RenaissanceRe common share	$	2.75		$	0.48

Six months ended June 30,	2012			2011
(thousands of shares)
Numerator:
Net income (loss) available (attributable) to RenaissanceRe common shareholders	$	343,699		$	(223,269	)
Amount allocated to participating common shareholders (1)	(5,601		)	(514		)
Net income (loss) allocated to RenaissanceRe common shareholders	$	338,098		$	(223,783	)
Denominator:
Denominator for basic income (loss) per RenaissanceRe common share - weighted average common shares	50,328			50,994
Per common share equivalents of employee stock options and restricted shares	669			—
Denominator for diluted income (loss) per RenaissanceRe common share - adjusted weighted average common shares and assumed conversions	50,997			50,994
Basic income (loss) per RenaissanceRe common share	$	6.72		$	(4.39	)
Diluted income (loss) per RenaissanceRe common share	$	6.63		$	(4.39	)

(1) Represents earnings attributable to holders of unvested restricted shares issued under the Company’s 2001 Stock Incentive Plan and Non-Employee Director Stock Incentive Plan.

36

NOTE 11.SEGMENT REPORTING

The Company has three reportable segments: Reinsurance, Lloyd's and Insurance.

The Company's Reinsurance operations are comprised of: 1) property catastrophe reinsurance, primarily written through Renaissance Reinsurance and DaVinci; 2) specialty reinsurance, primarily written through Renaissance Reinsurance and DaVinci; and 3) certain property catastrophe and specialty joint ventures, as described herein. The Reinsurance segment is managed by the Global Chief Underwriting Officer, who leads a team of underwriters, risk modelers and other industry professionals, who have access to the Company's proprietary risk management, underwriting and modeling resources and tools.

The Company's Lloyd's segment includes reinsurance and insurance business written through Syndicate 1458. Syndicate 1458 started writing certain lines of insurance and reinsurance business incepting on or after June 1, 2009. The syndicate was established to enhance the Company's underwriting platform by providing access to Lloyd's extensive distribution network and worldwide licenses and is managed by the Chief Underwriting Officer Lloyd's. RenaissanceRe Corporate Capital (UK) Limited (“RenaissanceRe CCL”), an indirect wholly owned subsidiary of the Company, is the sole corporate member of Syndicate 1458.

The Company's Insurance segment includes the operations of the Company's former Insurance segment that were not sold pursuant to the Stock Purchase Agreement with QBE, as discussed in “Note 1. Organization”. The Insurance segment is managed by the Global Chief Underwriting Officer. The Insurance business is written by Glencoe Insurance Ltd. (“Glencoe”). Glencoe is a Bermuda domiciled excess and surplus lines insurance company that is currently eligible to do business on an excess and surplus lines basis in 49 U.S. states, the District of Columbia, Puerto Rico and the U.S. Virgin Islands.

The financial results of the Company's strategic investments, weather and energy risk management operations and noncontrolling interests are included in the Other category of the Company's segment results. Also included in the Other category of the Company's segment results are the Company's investments in other ventures, investments unit, corporate expenses and capital servicing costs.

The Company does not manage its assets by segment; accordingly, net investment income and total assets are not allocated to the segments.

37

A summary of the significant components of the Company's revenues and expenses is as follows:

Three months ended June 30, 2012	Reinsurance			Lloyd’s			Insurance			Other			Total
Gross premiums written	$	617,039		$	50,297		$	—		$	—		$	667,336
Net premiums written	$	379,369		$	48,510		$	(249	)	—			$	427,630
Net premiums earned	$	214,296		$	30,369		$	(249	)	—			$	244,416
Net claims and claim expenses incurred	35,488			14,960			(897		)	—			49,551
Acquisition expenses	20,098			5,510			—			—			25,608
Operational expenses	30,346			10,806			255			—			41,407
Underwriting income (loss)	$	128,364		$	(907	)	$	393		—			127,850
Net investment income										14,743			14,743
Net foreign exchange gains										2,410			2,410
Equity in earnings of other ventures										6,846			6,846
Other income										11,289			11,289
Net realized and unrealized gains on investments										31,003			31,003
Net other-than-temporary impairments										(209		)	(209		)
Corporate expenses										(4,067		)	(4,067		)
Interest expense										(5,716		)	(5,716		)
Income from continuing operations before taxes													184,149
Income tax expense										(898		)	(898		)
Income from discontinued operations										1,393			1,393
Net income attributable to noncontrolling interests										(33,624		)	(33,624		)
Dividends on preference shares										(8,750		)	(8,750		)
Net income available to RenaissanceRe common shareholders													$	142,270
Net claims and claim expenses incurred – current accident year	$	76,631		$	18,366		$	—					$	94,997
Net claims and claim expenses incurred – prior accident years	(41,143		)	(3,406		)	(897		)				(45,446		)
Net claims and claim expenses incurred – total	$	35,488		$	14,960		$	(897	)				$	49,551
Net claims and claim expense ratio – current accident year	35.8		%	60.5		%	—		%				38.9		%
Net claims and claim expense ratio – prior accident years	(19.2		)%	(11.2		)%	360.2		%				(18.6		)%
Net claims and claim expense ratio – calendar year	16.6		%	49.3		%	360.2		%				20.3		%
Underwriting expense ratio	23.5		%	53.7		%	(102.4		)%				27.4		%
Combined ratio	40.1		%	103.0		%	257.8		%				47.7		%

38

Six months ended June 30, 2012	Reinsurance			Lloyd’s			Insurance			Eliminations (1)			Other			Total
Gross premiums written	$	1,226,801		$	105,114		$	—		$	(428	)	$	—		$	1,331,487
Net premiums written	$	838,007		$	82,447		$	(249	)				—			$	920,205
Net premiums earned	$	468,114		$	55,191		$	(224	)				—			$	523,081
Net claims and claim expenses incurred	43,812			23,961			(2,670		)				—			65,103
Acquisition expenses	39,484			10,178			57						—			49,719
Operational expenses	62,390			20,863			537						—			83,790
Underwriting income	$	322,428		$	189		$	1,852					—			324,469
Net investment income													81,714			81,714
Net foreign exchange gains													950			950
Equity in earnings of other ventures													12,316			12,316
Other loss													(27,805		)	(27,805		)
Net realized and unrealized gains on investments													77,116			77,116
Net other-than-temporary impairments													(343		)	(343		)
Corporate expenses													(8,878		)	(8,878		)
Interest expense													(11,434		)	(11,434		)
Income from continuing operations before taxes																448,105
Income tax expense													(861		)	(861		)
Income from discontinued operations													1,220			1,220
Net income attributable to noncontrolling interests													(87,265		)	(87,265		)
Dividends on preference shares													(17,500		)	(17,500		)
Net income available to RenaissanceRe common shareholders																$	343,699
Net claims and claim expenses incurred – current accident year	$	131,775		$	34,646		$	—								$	166,421
Net claims and claim expenses incurred – prior accident years	(87,963		)	(10,685		)	(2,670		)							(101,318		)
Net claims and claim expenses incurred – total	$	43,812		$	23,961		$	(2,670	)							$	65,103
Net claims and claim expense ratio – current accident year	28.2		%	62.8		%	—		%							31.8		%
Net claims and claim expense ratio – prior accident years	(18.8		)%	(19.4		)%	1,192.0		%							(19.4		)%
Net claims and claim expense ratio – calendar year	9.4		%	43.4		%	1,192.0		%							12.4		%
Underwriting expense ratio	21.7		%	56.3		%	(265.2		)%							25.6		%
Combined ratio	31.1		%	99.7		%	926.8		%							38.0		%

(1) Represents $0.4 million of gross premiums ceded from the Reinsurance segment to the Lloyd’s segment.

39

Three months ended June 30, 2011	Reinsurance			Lloyd’s			Insurance			Other			Total
Gross premiums written	$	607,404		$	34,126		$	33		$	—		$	641,563
Net premiums written	$	395,856		$	32,084		$	55		—			$	427,995
Net premiums earned	$	199,461		$	17,233		$	481		—			$	217,175
Net claims and claim expenses incurred	143,219			8,619			(577		)	—			151,261
Acquisition expenses	10,431			3,305			147			—			13,883
Operational expenses	32,901			8,635			763			—			42,299
Underwriting income (loss)	$	12,910		$	(3,326	)	$	148		—			9,732
Net investment income										33,328			33,328
Net foreign exchange losses										(4,521		)	(4,521		)
Equity in earnings of other ventures										5,128			5,128
Other loss										(5,167		)	(5,167		)
Net realized and unrealized gains on investments										34,979			34,979
Corporate expenses										(4,011		)	(4,011		)
Interest expense										(5,730		)	(5,730		)
Income from continuing operations before taxes													63,738
Income tax benefit										1,773			1,773
Loss from discontinued operations										(10,094		)	(10,094		)
Net income attributable to redeemable noncontrolling interest – DaVinciRe										(21,903		)	(21,903		)
Dividends on preference shares										(8,750		)	(8,750		)
Net income available to RenaissanceRe common shareholders													$	24,764
Net claims and claim expenses incurred – current accident year	$	162,398		$	9,612		$	(78	)				$	171,932
Net claims and claim expenses incurred – prior accident years	(19,179		)	(993		)	(499		)				(20,671		)
Net claims and claim expenses incurred – total	$	143,219		$	8,619		$	(577	)				$	151,261
Net claims and claim expense ratio – current accident year	81.4		%	55.8		%	(16.2		)%				79.2		%
Net claims and claim expense ratio – prior accident years	(9.6		)%	(5.8		)%	(103.8		)%				(9.6		)%
Net claims and claim expense ratio – calendar year	71.8		%	50.0		%	(120.0		)%				69.6		%
Underwriting expense ratio	21.7		%	69.3		%	189.2		%				25.9		%
Combined ratio	93.5		%	119.3		%	69.2		%				95.5		%

40

Six months ended June 30, 2011	Reinsurance			Lloyd’s			Insurance			Eliminations  (1)			Other			Total
Gross premiums written	$	1,181,086		$	70,746		$	313		$	(77	)	$	—		$	1,252,068
Net premiums written	$	819,422		$	60,821		$	327					—			$	880,570
Net premiums earned	$	488,890		$	32,907		$	919					—			$	522,716
Net claims and claim expenses incurred	738,623			39,142			2,033						—			779,798
Acquisition expenses	40,223			5,766			229						—			46,218
Operational expenses	65,264			17,607			1,258						—			84,129
Underwriting loss	$	(355,220	)	$	(29,608	)	$	(2,601	)				—			(387,429		)
Net investment income													93,609			93,609
Net foreign exchange losses													(3,861		)	(3,861		)
Equity in losses of other ventures													(18,625		)	(18,625		)
Other income													44,978			44,978
Net realized and unrealized gains on investments													29,765			29,765
Corporate expenses													(6,075		)	(6,075		)
Interest expense													(11,925		)	(11,925		)
Loss from continuing operations before taxes																(259,563		)
Income tax benefit													1,825			1,825
Loss from discontinued operations													(11,620		)	(11,620		)
Net loss attributable to redeemable noncontrolling interest – DaVinciRe													63,589			63,589
Dividends on preference shares													(17,500		)	(17,500		)
Net loss attributable to RenaissanceRe common shareholders																$	(223,269	)
Net claims and claim expenses incurred – current accident year	$	829,760		$	38,938		$	(69	)							$	868,629
Net claims and claim expenses incurred – prior accident years	(91,137		)	204			2,102									(88,831		)
Net claims and claim expenses incurred – total	$	738,623		$	39,142		$	2,033								$	779,798
Net claims and claim expense ratio – current accident year	169.7		%	118.3		%	(7.5		)%							166.2		%
Net claims and claim expense ratio – prior accident years	(18.6		)%	0.6		%	228.7		%							(17.0		)%
Net claims and claim expense ratio – calendar year	151.1		%	118.9		%	221.2		%							149.2		%
Underwriting expense ratio	21.6		%	71.1		%	161.8		%							24.9		%
Combined ratio	172.7		%	190.0		%	383.0		%							174.1		%

(1) Represents $0.1 million of gross premiums ceded from the Reinsurance segment to the Lloyd’s segment.

41

NOTE 12.DERIVATIVE INSTRUMENTS

The Company enters into derivative instruments such as futures, options, swaps, forward contracts and other derivative contracts primarily to manage its foreign currency exposure, obtain exposure to a particular financial market, for yield enhancement, or for trading and speculation. The Company accounts for its derivatives in accordance with FASB ASC Topic Derivatives and Hedging, which requires all derivatives to be recorded at fair value on the Company's balance sheet as either assets or liabilities, depending on the rights or obligations of the derivatives, with changes in fair value reflected in current earnings. The Company does not currently apply hedge accounting in respect of any positions reflected in its consolidated financial statements. Where the Company has entered into master netting agreements with counterparties, or the Company has the legal and contractual right to offset positions, the derivative positions are generally netted by counterparty and are reported accordingly in other assets and other liabilities.

The table below shows the location on the consolidated balance sheets and fair value of the Company’s principal derivative instruments:

	Derivative Assets
	June 30, 2012			December 31, 2011
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate futures	Other assets	$	2,301	Other assets	$	612
Foreign currency forward contracts (1)	Other assets	4,278		Other assets	—
Foreign currency forward contracts (2)	Other liabilities	3,359		Other liabilities	7,219
Foreign currency forward contracts (3)	Other assets	—		Other assets	387
Credit default swaps	Other assets	491		Other assets	—
Energy and weather contracts (4)	Other assets	27,516		Other assets	52,721
Total		$	37,945		$	60,939
	Derivative Liabilities
	June 30, 2012			December 31, 2011
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate futures	Other liabilities	$	289	Other liabilities	$	339
Foreign currency forward contracts (1)	Other liabilities	4,987		Other liabilities	11,754
Foreign currency forward contracts (2)	Other liabilities	3,684		Other liabilities	1,606
Foreign currency forward contracts (3)	Other assets	175		Other assets	—
Credit default swaps	Other liabilities	536		Other liabilities	539
Energy and weather contracts (4)	Other liabilities	13,522		Other liabilities	43,389
Total		$	23,193		$	57,627

(1) Contracts used to manage foreign currency risks in underwriting and non-investment operations.

(2) Contracts used to manage foreign currency risks in investment operations. Included in other liabilities are derivative assets of $3.4 million (December 31, 2011 – $7.2 million) which are netted with derivative liabilities of $3.7 million (December 31, 2011 – $1.6 million) under a master netting arrangements.

(3) Contracts used to manage foreign currency risks in energy and risk operations.

(4) Included in other assets is $56.8 million of derivative assets (December 31, 2011 – $104.6 million) and $29.3 million of derivative liabilities (December 31, 2011 – $51.9 million). Included in other liabilities is $5.2 million of derivative assets (December 31, 2011 – $8.8 million) and $18.7 million of derivative liabilities (December 31, 2011 – $52.2 million).

42

The location and amount of the gain (loss) recognized in the Company’s consolidated statements of operations related to its derivative instruments is shown in the following table:

	Location of gain (loss) recognized on derivatives	Amount of gain (loss) recognized on derivatives
Three months ended June 30,		2012			2011
Interest rate futures	Net investment income	$	(2,847	)	$	(7,693	)
Foreign currency forward contracts (1)	Net foreign exchange gains (losses)	(2,183		)	9,208
Foreign currency forward contracts (2)	Net foreign exchange gains (losses)	1,899			(7,752		)
Foreign currency forward contracts (3)	Net foreign exchange gains (losses)	376			(212		)
Credit default swaps	Net investment income	(24		)	420
Energy and weather contracts	Other income (loss)	11,987			1,429
Total		$	9,208		$	(4,600	)

	Location of gain (loss) recognized on derivatives	Amount of gain (loss) recognized on derivatives
Six months ended June 30,		2012			2011
Interest rate futures	Net investment income	$	(1,817	)	$	(8,347	)
Foreign currency forward contracts (1)	Net foreign exchange gains (losses)	1,369			17,007
Foreign currency forward contracts (2)	Net foreign exchange gains (losses)	(2,349		)	(21,152		)
Foreign currency forward contracts (3)	Net foreign exchange gains (losses)	513			(648		)
Credit default swaps	Net investment income	534			1,142
Energy and weather contracts	Other income (loss)	(16,726		)	9,929
Platinum warrant	Other income (loss)	—			2,975
Total		$	(18,476	)	$	906

(1) Contracts used to manage foreign currency risks in underwriting and non-investment operations.

(2) Contracts used to manage foreign currency risks in investment operations.

(3) Contracts used to manage foreign currency risks in energy and risk operations.

The Company is not aware of the existence of any credit-risk related contingent features that it believes would be triggered in its derivative instruments that are in a net liability position at June 30, 2012.

Interest Rate Futures

The Company uses interest rate futures within its portfolio of fixed maturity investments to manage its exposure to interest rate risk, which can include increasing or decreasing its exposure to this risk. At June 30, 2012, the Company had $360.2 million of notional long positions and $303.7 million of notional short positions of primarily Eurodollar, U.S. treasury and non-U.S. dollar futures contracts (December 31, 2011 – $3.2 billion and $285.7 million, respectively). The fair value of these derivatives is determined using exchange traded prices.

43

Foreign Currency Derivatives

The Company’s functional currency is the U.S. dollar. The Company writes a portion of its business in currencies other than U.S. dollars and may, from time to time, experience foreign exchange gains and losses in the Company’s consolidated financial statements. All changes in exchange rates, with the exception of non-U.S. dollar denominated investments classified as available for sale and non-monetary assets and liabilities, are recognized currently in the Company’s consolidated statements of operations.

Underwriting Operations Related Foreign Currency Contracts

The Company’s foreign currency policy with regard to its underwriting operations is generally to hold foreign currency assets, including cash, investments and receivables that approximate the foreign currency liabilities, including claims and claim expense reserves and reinsurance balances payable. When necessary, the Company may use foreign currency forward and option contracts to minimize the effect of fluctuating foreign currencies on the value of non-U.S. dollar denominated assets and liabilities associated with its underwriting operations. The fair value of the Company's underwriting operations related foreign currency contracts is determined using indicative pricing obtained from counterparties or broker quotes. At June 30, 2012, the Company had outstanding underwriting related foreign currency contracts of $179.7 million in notional long positions and $503.4 million notional in short positions, denominated in U.S. dollars (December 31, 2011 – $160.5 million and $700.8 million, respectively).

Investment Portfolio Related Foreign Currency Forward Contracts

The Company’s investment operations are exposed to currency fluctuations through its investments in non-U.S. dollar fixed maturity investments, short term investments and other investments. To economically hedge its exposure to currency fluctuations from these investments, the Company has entered into foreign currency forward contracts. Foreign exchange gains (losses) associated with the Company’s hedging of these non-U.S. dollar investments are recorded in net foreign exchange (losses) gains in its consolidated statements of operations. The fair value of the Company's investment portfolio related foreign currency forward contracts is determined using an interpolated rate based on closing forward market rates. At June 30, 2012, the Company had outstanding investment portfolio related foreign currency contracts of $198.3 million in notional long positions and $284.6 million in notional short positions, denominated in U.S. dollars (December 31, 2011 – $48.1 million and $211.6 million, respectively).

Energy and Risk Operations Related Foreign Currency Contracts

The Company’s energy and risk operations are exposed to currency fluctuations through certain derivative transactions it enters into that are denominated in non-U.S. dollars. The Company may, from time to time, use foreign currency forward and option contracts to minimize the effect of fluctuating foreign currencies on the value of non-U.S. dollar denominated assets and liabilities associated with these operations. The fair value of the Company's energy and risk operations related foreign currency contracts is based on exchange traded prices. At June 30, 2012, the Company’s energy and risk operations had foreign currency contracts of $Nil in notional long positions and $16.7 million in notional short positions (December 31, 2011 – $7.8 million and $12.7 million, respectively).

Credit Derivatives

The Company’s exposure to credit risk is primarily due to its fixed maturity investments, short term investments, premiums receivable and reinsurance recoverable.  From time to time, the Company purchases credit derivatives to hedge its exposures in the insurance industry, and to assist in managing the credit risk associated with ceded reinsurance.  The Company also employs credit derivatives in its investment portfolio to either assume credit risk or hedge its credit exposure. The fair value of the credit derivatives is determined using industry valuation models, broker bid indications or internal pricing valuation techniques.  The fair value of these credit derivatives can change based on a variety of factors including changes in credit spreads, default rates and recovery rates, the correlation of credit risk between the referenced credit and the counterparty, and market rate inputs such as interest rates. At June 30, 2012, the Company had outstanding credit derivatives of $15.0 million in notional long positions and $24.4 million in notional short positions, denominated in U.S. dollars (December 31, 2011 – $15.0 million and $38.1 million, respectively).

44

Energy and Weather-Related Derivatives

The Company regularly transacts in certain derivative-based risk management products primarily to address weather and energy risks and engages in hedging and trading activities related to these risks. The trading markets for these derivatives are generally linked to energy and agriculture commodities, weather and other natural phenomena. Currently, a percentage of the Company’s derivative-based risk management products are transacted on a dual-trigger basis combining weather or other natural phenomenon, with prices for commodities or securities related to energy or agriculture. The fair value of these contracts is obtained through the use of quoted market prices, or in the absence of such quoted prices, industry or internal valuation models. Generally, the Company’s current portfolio of such derivative contracts is of comparably short duration and such contracts are predominantly seasonal in nature. Over time, the Company currently expects that its participation in these markets, and the impact of these operations on its financial results, is likely to increase on both an absolute and relative basis.

As of the dates set forth below, the Company had the following gross derivative contract positions outstanding relating to its energy and weather derivatives trading activities.

	Quantity (1)
	June 30, 2012	December 31, 2011	Unit of measurement
Energy	170,095,670	240,363,364	One million British thermal units (“MMBTUs")
Temperature	24,141,394	14,917,438	$ per Degree Day Fahrenheit
Agriculture	29,798,000	6,098,000	Bushels
Precipitation	1,799,475	65,000	$ per Inch
Wind	146	712	$ per Meters per Second Hour

(1) Represents the sum of gross long and gross short derivative contracts.

The Company uses, among other things, value-at-risk (“VaR”) analysis to monitor the risks associated with its energy and weather derivatives trading portfolio. VaR is a tool that measures the potential loss that could occur if the Company's trading positions were maintained over a defined period of time, calculated at a given statistical confidence level. Due to the seasonal nature of the Company's energy and weather derivatives trading activities, the VaR is based on a rolling two season (one-year) holding period assuming no dynamic trading during the holding period. A 99% confidence level is used for the VaR analysis. A 99% confidence level implies that within a one-year period, the potential loss in the Company's portfolio is not expected to exceed the VaR estimate in 99% of the possible modeled outcomes. In the remaining estimated 1% of the possible outcomes, the anticipated potential loss is expected to be higher than the VaR figure, and on average substantially higher.

The VaR model, based on a Monte Carlo simulation methodology, seeks to take into account correlations between different positions and potential for movements to offset one another within the portfolio. The expected value of the risk factors in the Company's portfolio is generally obtained from exchange-traded futures markets. For most of the risk factors, the volatility is derived from exchange-traded options markets. For those risk factors for which exchange-traded options might not exist, the volatility is based on historical analysis matched to broker quotes from the over-the-counter market, where available. The joint distribution of outcomes is based on our estimate of the historical seasonal dependence among the underlying risk factors, scaled to the current market levels. The Company then estimates the expected outcomes by applying a Monte Carlo simulation to these risk factors. The joint distribution of the simulated risk factors is then filtered through the portfolio positions, and then the distribution of the outcomes is realized. The 99^thpercentile of this distribution is then calculated as the portfolio VaR. Among the significant limitations of this methodology is that the market data used to forecast parameters of the model may not be an appropriate proxy of those parameters. The VaR methodology uses a number of assumptions, such as (i) risks are measured under average market conditions, assuming normal distribution of market risk factors, (ii) future movements in market risk factors follow estimated historical movements, and (iii) the assessed exposures do not change during the holding period. We believe the VaR methodology has utility but do not derive absolute assurance from it. Accordingly, there is no guarantee that these assumptions will prove correct and actual outcomes may vary, perhaps substantially and adversely. The Company expects that, for any given period, its actual results will differ from its assumptions, including with respect to previously estimated potential losses and that such losses could be substantially higher than the estimated VaR.

45

At June 30, 2012, the estimated VaR for the Company's portfolio of energy and weather-related derivatives, as described above, calculated at an estimated 99% confidence level, was $42.0 million. The average, low and high amounts calculated by the Company's VaR analysis during the six months ended June 30, 2012 were $26.4 million, $13.0 million and $49.3 million, respectively.

At June 30, 2012, RenaissanceRe had provided guarantees in the aggregate amount of $354.3 million to certain counterparties of the weather and energy risk operations of Renaissance Trading. In the future, RenaissanceRe may issue guarantees for other purposes or increase the amount of guarantees issued to counterparties of Renaissance Trading.

Platinum Warrant

The Company held a warrant to purchase up to 2.5 million common shares of Platinum for $27.00 per share. The Company recorded its investment in the Platinum warrant at fair value. The fair value of the warrant was estimated using either the Black-Scholes option pricing model or the in-the-money value, the greater of which the Company considered the best estimate of the exit value of the warrant. On January 20, 2011, the Company sold its warrant to Platinum for an aggregate of $47.9 million, and recognized a $3.0 million gain on the sale, which is included in other income during the six months ended June 30, 2011.

NOTE 13.CONDENSED CONSOLIDATING FINANCIAL INFORMATION PROVIDED IN CONNECTION WITH OUTSTANDING DEBT OF SUBSIDIARIES

The following tables present condensed consolidating balance sheets at June 30, 2012 and December 31, 2011, condensed consolidating statements of operations and condensed consolidating statements of comprehensive income (loss) for the three and six months endedJune 30, 2012 and 2011, and condensed consolidating statements of cash flows for the six months endedJune 30, 2012 and 2011, respectively, for RenaissanceRe, RRNAH and RenaissanceRe’s other subsidiaries. RRNAH is a wholly owned subsidiary of RenaissanceRe.

On March 17, 2010, RRNAH issued, and RenaissanceRe guaranteed, $250.0 million of 5.75% Senior Notes due March 15, 2020, with interest on the notes payable on March 15 and September 15. The notes can be redeemed by RRNAH prior to maturity, subject to payment of a “make-whole” premium. The notes, which are senior obligations, contain various covenants, including limitations on mergers and consolidations, restrictions as to the disposition of the stock of designated subsidiaries and limitations on liens of the stock of designated subsidiaries.

46

Condensed Consolidating Balance Sheet at June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)		RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries)  (1)		Consolidating Adjustments  (2)			RenaissanceRe Consolidated
Assets
Total investments	$	348,875	$	41,934		$	6,199,801	$	—		$	6,590,610
Cash and cash equivalents	4,749		871			258,612		—			264,232
Investments in subsidiaries	3,277,526		104,976			—		(3,382,502		)	—
Due from subsidiaries and affiliates	117,128		—			—		(117,128		)	—
Premiums receivable	—		—			971,546		—			971,546
Prepaid reinsurance premiums	—		—			278,242		—			278,242
Reinsurance recoverable	—		—			198,777		—			198,777
Accrued investment income	3,030		79			32,829		—			35,938
Deferred acquisition costs	—		—			106,027		—			106,027
Other assets	209,827		27,710			495,109		(218,500		)	514,146
Total assets	$	3,961,135	$	175,570		$	8,540,943	$	(3,718,130	)	$	8,959,518
Liabilities, Noncontrolling Interests and Shareholders’ Equity
Liabilities
Reserve for claims and claim expenses	$	—	$	—		$	1,801,247	$	—		$	1,801,247
Unearned premiums	—		—			964,499		—			964,499
Debt	100,000		249,293			5,000		—			354,293
Amounts due to subsidiaries and affiliates	—		5,215			—		(5,215		)	—
Reinsurance balances payable	—		—			396,669		—			396,669
Other liabilities	18,125		5,571			670,814		(1,458		)	693,052
Liabilities of discontinued operations held for sale	—		1,959			—		—			1,959
Total liabilities	118,125		262,038			3,838,229		(6,673		)	4,211,719
Redeemable noncontrolling interest – DaVinciRe	—		—			900,878		—			900,878
Shareholders’ Equity
Total shareholders’ equity	3,843,010		(86,468		)	3,801,836		(3,711,457		)	3,846,921
Total liabilities, noncontrolling interests and shareholders’ equity	$	3,961,135	$	175,570		$	8,540,943	$	(3,718,130	)	$	8,959,518

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

47

Condensed Consolidating Balance Sheet at December 31, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)		RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries)  (1)		Consolidating Adjustments  (2)			RenaissanceRe Consolidated
Assets
Total investments	$	593,973	$	104,869		$	5,510,410	$	—		$	6,209,252
Cash and cash equivalents	10,606		4,920			201,458		—			216,984
Investments in subsidiaries	2,776,997		83,031			—		(2,860,028		)	—
Due from subsidiaries and affiliates	172,069		846			—		(172,915		)	—
Premiums receivable	—		—			471,878		—			471,878
Prepaid reinsurance premiums	—		—			58,522		—			58,522
Reinsurance recoverable	—		—			404,029		—			404,029
Accrued investment income	4,106		311			29,106		—			33,523
Deferred acquisition costs	—		—			43,721		—			43,721
Other assets	206,171		27,198			275,092		(201,458		)	307,003
Total assets	$	3,763,922	$	221,175		$	6,994,216	$	(3,234,401	)	$	7,744,912
Liabilities, Redeemable Noncontrolling Interest and Shareholders’ Equity
Liabilities
Reserve for claims and claim expenses	$	—	$	—		$	1,992,354	$	—		$	1,992,354
Unearned premiums	—		—			347,655		—			347,655
Debt	100,000		249,247			4,373		—			353,620
Amounts due to subsidiaries and affiliates	30,519		6,081			—		(36,600		)	—
Reinsurance balances payable	—		—			256,883		—			256,883
Other liabilities	28,210		3,755			482,668		—			514,633
Liabilities of discontinued operations held for sale	—		13,507			—		—			13,507
Total liabilities	158,729		272,590			3,083,933		(36,600		)	3,478,652
Redeemable noncontrolling interest – DaVinciRe	—		—			657,727		—			657,727
Shareholders’ Equity
Total shareholders’ equity	3,605,193		(51,415		)	3,252,556		(3,197,801		)	3,608,533
Total liabilities, redeemable noncontrolling interest and shareholders’ equity	$	3,763,922	$	221,175		$	6,994,216	$	(3,234,401	)	$	7,744,912

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

48

Condensed Consolidating Statement of Operations for the three months ended June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries)  (1)			Consolidating Adjustments  (2)			RenaissanceRe Consolidated
Revenues
Net premiums earned	$	—		$	—		$	244,416		$	—		$	244,416
Net investment income	3,243			206			13,338			(2,044		)	14,743
Net foreign exchange (losses) gains	(13		)	—			2,423			—			2,410
Equity in earnings of other ventures	—			—			6,846			—			6,846
Other income	60			—			11,229			—			11,289
Net realized and unrealized gains on investments	4,907			8			26,088			—			31,003
Net other-than-temporary impairments	—			—			(209		)	—			(209		)
Total revenues	8,197			214			304,131			(2,044		)	310,498
Expenses
Net claims and claim expenses incurred	—			—			49,551			—			49,551
Acquisition expenses	—			—			25,608			—			25,608
Operational expenses	(1,303		)	1,749			40,961			—			41,407
Corporate expenses	3,501			59			507			—			4,067
Interest expense	1,469			3,616			631			—			5,716
Total expenses	3,667			5,424			117,258			—			126,349
Income (loss) before equity in net income of subsidiaries and taxes	4,530			(5,210		)	186,873			(2,044		)	184,149
Equity in net income of subsidiaries	146,490			6,511			—			(153,001		)	—
Income from continuing operations before taxes	151,020			1,301			186,873			(155,045		)	184,149
Income tax expense	—			(400		)	(498		)	—			(898		)
Income from continuing operations	151,020			901			186,375			(155,045		)	183,251
Income from discontinued operations	—			1,393			—			—			1,393
Net income	151,020			2,294			186,375			(155,045		)	184,644
Net income attributable to noncontrolling interests	—			—			(33,624		)	—			(33,624		)
Net income attributable to RenaissanceRe	151,020			2,294			152,751			(155,045		)	151,020
Dividends on preference shares	(8,750		)	—			—			—			(8,750		)
Net income attributable to RenaissanceRe common shareholders	$	142,270		$	2,294		$	152,751		$	(155,045	)	$	142,270

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

49

Condensed Consolidating Statement of Comprehensive Income for the three months ended June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)		RenRe North America Holdings Inc. (Subsidiary Issuer)		Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)			RenaissanceRe Consolidated
Comprehensive income
Net income	$	151,020	$	2,294	$	186,375		$	(155,045	)	$	184,644
Change in net unrealized gains on investments	—		—		(432		)	—			(432		)
Portion of other-than-temporary impairments recognized in other comprehensive income	—		—		(25		)	—			(25		)
Comprehensive income	151,020		2,294		185,918			(155,045		)	184,187
Net income attributable to noncontrolling interests	—		—		(33,624		)	—			(33,624		)
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests	—		—		—			—			—
Comprehensive income attributable to noncontrolling interests	—		—		(33,624		)	—			(33,624		)
Comprehensive income attributable to RenaissanceRe	$	151,020	$	2,294	$	152,294		$	(155,045	)	$	150,563

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

50

Condensed Consolidating Statement of Operations for the six months ended June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries)  (1)			Consolidating Adjustments  (2)			RenaissanceRe Consolidated
Revenues
Net premiums earned	$	—		$	—		$	523,081		$	—		$	523,081
Net investment income	7,691			475			77,697			(4,149		)	81,714
Net foreign exchange gains	7			—			943			—			950
Equity in earnings of other ventures	—			—			12,316			—			12,316
Other income (loss)	152			—			(27,957		)	—			(27,805		)
Net realized and unrealized gains on investments	8,419			1,052			67,645			—			77,116
Net other-than-temporary impairments	—			—			(343		)	—			(343		)
Total revenues	16,269			1,527			653,382			(4,149		)	667,029
Expenses
Net claims and claim expenses incurred	—			—			65,103			—			65,103
Acquisition expenses	—			—			49,719			—			49,719
Operational expenses	(2,614		)	3,757			82,647			—			83,790
Corporate expenses	7,679			152			1,047			—			8,878
Interest expense	2,938			7,233			1,263			—			11,434
Total expenses	8,003			11,142			199,779			—			218,924
Income (loss) before equity in net income (loss) of subsidiaries and taxes	8,266			(9,615		)	453,603			(4,149		)	448,105
Equity in net income (loss) of subsidiaries	352,933			(23,757		)	—			(329,176		)	—
Income (loss) from continuing operations before taxes	361,199			(33,372		)	453,603			(333,325		)	448,105
Income tax (expense) benefit	—			(2,968		)	2,107			—			(861		)
Income (loss) from continuing operations	361,199			(36,340		)	455,710			(333,325		)	447,244
Income from discontinued operations	—			1,220			—			—			1,220
Net income (loss)	361,199			(35,120		)	455,710			(333,325		)	448,464
Net income attributable to noncontrolling interests	—			—			(87,265		)	—			(87,265		)
Net income (loss) attributable to RenaissanceRe	361,199			(35,120		)	368,445			(333,325		)	361,199
Dividends on preference shares	(17,500		)	—			—			—			(17,500		)
Net income (loss) attributable to RenaissanceRe common shareholders	$	343,699		$	(35,120	)	$	368,445		$	(333,325	)	$	343,699

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

51

Condensed Consolidating Statement of Comprehensive Income (Loss) for the six months ended June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)		RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)			RenaissanceRe Consolidated
Comprehensive income (loss)
Net income (loss)	$	361,199	$	(35,120	)	$	455,710		$	(333,325	)	$	448,464
Change in net unrealized gains on investments	—		—			823			—			823
Portion of other-than-temporary impairments recognized in other comprehensive income	—		—			(52		)	—			(52		)
Comprehensive income (loss)	361,199		(35,120		)	456,481			(333,325		)	449,235
Net income attributable to noncontrolling interests	—		—			(87,265		)	—			(87,265		)
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests	—		—			—			—			—
Comprehensive income attributable to noncontrolling interests	—		—			(87,265		)	—			(87,265		)
Comprehensive income (loss) attributable to RenaissanceRe	$	361,199	$	(35,120	)	$	369,216		$	(333,325	)	$	361,970

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

52

Condensed Consolidating Statement of Operations for the three months ended June 30, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)			RenaissanceRe Consolidated
Revenues
Net premiums earned	$	—		$	—		$	217,175		$	—		$	217,175
Net investment income	5,586			203			29,441			(1,902		)	33,328
Net foreign exchange gains (losses)	5			—			(4,526		)	—			(4,521		)
Equity in earnings of other ventures	—			—			5,128			—			5,128
Other income (loss)	29			—			(5,196		)	—			(5,167		)
Net realized and unrealized gains (losses) on investments	3,324			(39		)	31,694			—			34,979
Total revenues	8,944			164			273,716			(1,902		)	280,922
Expenses
Net claims and claim expenses incurred	—			—			151,261			—			151,261
Acquisition expenses	—			—			13,883			—			13,883
Operational expenses	(1,196		)	1,542			41,953			—			42,299
Corporate expenses	3,474			48			489			—			4,011
Interest expense	2,559			3,617			645			(1,091		)	5,730
Total expenses	4,837			5,207			208,231			(1,091		)	217,184
Income (loss) before equity in net loss of subsidiaries and taxes	4,107			(5,043		)	65,485			(811		)	63,738
Equity in net income (loss) of subsidiaries	29,407			(2,568		)	—			(26,839		)	—
Income (loss) from continuing operations before taxes	33,514			(7,611		)	65,485			(27,650		)	63,738
Income tax benefit	—			1,512			261			—			1,773
Income (loss) from continuing operations	33,514			(6,099		)	65,746			(27,650		)	65,511
Loss from discontinued operations	—			(10,094		)	—			—			(10,094		)
Net income (loss)	33,514			(16,193		)	65,746			(27,650		)	55,417
Net income attributable to noncontrolling interest	—			—			(21,903		)	—			(21,903		)
Net income (loss) attributable to RenaissanceRe	33,514			(16,193		)	43,843			(27,650		)	33,514
Dividends on preference shares	(8,750		)	—			—			—			(8,750		)
Net income (loss) attributable to RenaissanceRe common shareholders	$	24,764		$	(16,193	)	$	43,843		$	(27,650	)	$	24,764

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

53

Condensed Consolidating Statement of Comprehensive Income (Loss) for the three months ended June 30, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)		RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)			RenaissanceRe Consolidated
Comprehensive income (loss)
Net income (loss)	$	33,514	$	(16,193	)	$	65,746		$	(27,650	)	$	55,417
Change in net unrealized gains on investments	—		—			(1,817		)	—			(1,817		)
Portion of other-than-temporary impairments recognized in other comprehensive income (loss)	—		—			—			—			—
Comprehensive income (loss)	33,514		(16,193		)	63,929			(27,650		)	53,600
Net income attributable to noncontrolling interests	—		—			(21,903		)	—			(21,903		)
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests	—		—			3			—			3
Comprehensive income attributable to noncontrolling interests	—		—			(21,900		)	—			(21,900		)
Comprehensive income (loss) attributable to RenaissanceRe	$	33,514	$	(16,193	)	$	42,029		$	(27,650	)	$	31,700

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

54

Condensed Consolidating Statement of Operations for the six months ended June 30, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)			RenaissanceRe Consolidated
Revenues
Net premiums earned	$	—		$	—		$	522,716		$	—		$	522,716
Net investment income	10,750			219			84,643			(2,003		)	93,609
Net foreign exchange gains (losses)	96			—			(3,957		)	—			(3,861		)
Equity in losses of other ventures	—			—			(18,625		)	—			(18,625		)
Other income	195			—			44,783			—			44,978
Net realized and unrealized gains (losses) on investments	2,332			(39		)	27,472			—			29,765
Total revenues	13,373			180			657,032			(2,003		)	668,582
Expenses
Net claims and claim expenses incurred	—			—			779,798			—			779,798
Acquisition expenses	—			—			46,218			—			46,218
Operational expenses	(2,416		)	3,044			83,501			—			84,129
Corporate expenses	5,515			109			451			—			6,075
Interest expense	7,534			7,335			1,754			(4,698		)	11,925
Total expenses	10,633			10,488			911,722			(4,698		)	928,145
Income (loss) before equity in net loss of subsidiaries and taxes	2,740			(10,308		)	(254,690		)	2,695			(259,563		)
Equity in net loss subsidiaries	(208,799		)	(732		)	—			209,531			—
Loss from continuing operations before taxes	(206,059		)	(11,040		)	(254,690		)	212,226			(259,563		)
Income tax benefit (expense)	290			3,077			(1,542		)	—			1,825
Loss from continuing operations	(205,769		)	(7,963		)	(256,232		)	212,226			(257,738		)
Loss from discontinued operations	—			(11,620		)	—			—			(11,620		)
Net loss	(205,769		)	(19,583		)	(256,232		)	212,226			(269,358		)
Net loss attributable to redeemable noncontrolling interest – DaVinciRe	—			—			63,589			—			63,589
Net loss attributable to RenaissanceRe	(205,769		)	(19,583		)	(192,643		)	212,226			(205,769		)
Dividends on preference shares	(17,500		)	—			—			—			(17,500		)
Net loss attributable to RenaissanceRe common shareholders	$	(223,269	)	$	(19,583	)	$	(192,643	)	$	212,226		$	(223,269	)

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

55

Condensed Consolidating Statement of Comprehensive Loss for the six months ended June 30, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)		RenaissanceRe Consolidated
Comprehensive loss
Net loss	$	(205,769	)	$	(19,583	)	$	(256,232	)	$	212,226	$	(269,358	)
Change in net unrealized gains on investments	—			—			(1,798		)	—		(1,798		)
Portion of other-than-temporary impairments recognized in other comprehensive loss	—			—			—			—		—
Comprehensive loss	(205,769		)	(19,583		)	(258,030		)	212,226		(271,156		)
Net loss attributable to noncontrolling interests	—			—			63,589			—		63,589
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests	—			—			6			—		6
Comprehensive loss attributable to noncontrolling interests	—			—			63,595			—		63,595
Comprehensive loss attributable to RenaissanceRe	$	(205,769	)	$	(19,583	)	$	(194,435	)	$	212,226	$	(207,561	)

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

56

Condensed Consolidating Statement of Cash Flows for the six months ended June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			RenaissanceRe Consolidated
Cash flows provided by (used in) operating activities
Net cash provided by (used in) operating activities	$	9,361		$	(21,004	)	$	315,420		$	303,777
Cash flows provided by (used in) investing activities
Proceeds from sales and maturities of fixed maturity investments trading	507,082			124,658			4,160,962			4,792,702
Purchases of fixed maturity investments trading	(405,809		)	(57,652		)	(4,849,441		)	(5,312,902		)
Proceeds from sales and maturities of fixed maturity investments available for sale	—			—			37,530			37,530
Net sales (purchases) of short term investments	141,196			(3,483		)	45,892			183,605
Net sales of other investments	—			—			18,681			18,681
Net sales of other assets	—			—			(166		)	(166		)
Dividends and return of capital from subsidiaries	256,153			4,298			(260,451		)	—
Contributions to subsidiaries	(372,700		)	(50,000		)	422,700			—
Due to (from) subsidiary	(5,856		)	(866		)	6,722			—
Net cash provided by (used in) investing activities	120,066			16,955			(417,571		)	(280,550		)
Cash flows (used in) provided by financing activities
Dividends paid – RenaissanceRe common shares	(27,673		)	—			—			(27,673		)
Dividends paid – preference shares	(17,500		)	—			—			(17,500		)
RenaissanceRe common share repurchases	(90,111		)	—			—			(90,111		)
Third party DaVinciRe share transactions	—			—			160,864			160,864
Net cash (used in) provided by financing activities	(135,284		)	—			160,864			25,580
Effect of exchange rate changes on foreign currency cash	—			—			(1,559		)	(1,559		)
Net (decrease) increase in cash and cash equivalents	(5,857		)	(4,049		)	57,154			47,248
Cash and cash equivalents, beginning of period	10,606			4,920			201,458			216,984
Cash and cash equivalents, end of period	$	4,749		$	871		$	258,612		$	264,232

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

57

Condensed Consolidating Statement of Cash Flows for the six months ended June 30, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			RenaissanceRe Consolidated
Cash flows provided by (used in) operating activities
Net cash provided by (used in) operating activities	$	123,220		$	(25,043	)	$	(67,181	)	$	30,996
Cash flows provided by investing activities
Proceeds from sales and maturities of fixed maturity investments trading	28,749			72,982			2,777,484			2,879,215
Purchases of fixed maturity investments trading	(33,626		)	(208,847		)	(2,569,205		)	(2,811,678		)
Proceeds from sales and maturities of fixed maturity investments available for sale	—			—			48,135			48,135
Purchases of fixed maturity investments available for sale	—			—			(4,078		)	(4,078		)
Net purchases of equity investments trading	—			—			(32,676		)	(32,676		)
Net sales of short term investments	24,965			7,468			18,419			50,852
Net sales (purchases) of other investments	102,717			—			(126,598		)	(23,881		)
Net purchases of investments in other ventures	—			—			(21,000		)	(21,000		)
Net sales of other assets	—			—			46,984			46,984
Dividends and return of capital from subsidiaries	718,294			9,306			(727,600		)	—
Contributions to subsidiaries	(262,115		)	(5,700		)	267,815			—
Due (from) to subsidiaries	(230,079		)	1,645			228,434			—
Net proceeds from sale of discontinued operations held for sale	—			269,520			—			269,520
Net cash provided by investing activities	348,905			146,374			(93,886		)	401,393
Cash flows used in financing activities
Dividends paid – RenaissanceRe common shares	(26,721		)	—			—			(26,721		)
Dividends paid – preference shares	(17,500		)	—			—			(17,500		)
RenaissanceRe common share repurchases	(174,792		)	—			—			(174,792		)
Net repayment of debt	(253,512		)	(124,995		)	178,507			(200,000		)
Third party DaVinciRe share transactions	—			—			(56,708		)	(56,708		)
Net cash used in financing activities	(472,525		)	(124,995		)	121,799			(475,721		)
Effect of exchange rate changes on foreign currency cash	—			—			3,331			3,331
Net decrease in cash and cash equivalents	(400		)	(3,664		)	(35,937		)	(40,001		)
Cash and cash equivalents, beginning of period	3,414			3,940			270,384			277,738
Cash and cash equivalents, end of period	$	3,014		$	276		$	234,447		$	237,737

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

58

NOTE 14.COMMITMENTS AND CONTINGENCIES

There are no material changes from the commitments and contingencies previously disclosed in the Company's Annual Report on Form 10-K for the year ended December 31, 2011.

The Company and its subsidiaries are subject to lawsuits and regulatory actions in the normal course of business that do not arise from or directly relate to claims on reinsurance treaties or contracts or direct surplus lines insurance policies.  This category of business litigation may involve allegations of underwriting or claims-handling errors or misconduct, employment claims, regulatory actions or disputes arising from the Company's business ventures.  The Company's operating subsidiaries are subject to claims litigation involving disputed interpretations of policy coverages.  Generally, the Company's direct surplus lines insurance operations are subject to greater frequency and diversity of claims and claims-related litigation than its reinsurance operations and, in some jurisdictions, may be subject to direct actions by allegedly injured persons or entities seeking damages from policyholders.  These lawsuits, involving claims on policies issued by the Company's subsidiaries which are typical to the insurance industry in general and in the normal course of business, are considered in its loss and loss expense reserves which are discussed in its loss reserves discussion.  In addition, the Company may from time to time engage in litigation or arbitration related to its claims for payment in respect of ceded reinsurance.  Any such litigation or arbitration contains an element of uncertainty, and the Company believes the inherent uncertainty in such matters may have increased recently and will likely continue to increase. Currently, the Company believes that no individual litigation or arbitration to which it is presently a party is likely to have a material adverse effect on its financial condition, business or operations.

59

ITEM 2.    MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following is a discussion and analysis of our results of operations for the three and six months endedJune 30, 2012 and 2011, respectively. The following also includes a discussion of our liquidity and capital resources at June 30, 2012. This discussion and analysis should be read in conjunction with the unaudited consolidated financial statements and notes thereto included in this filing and the audited consolidated financial statements and notes thereto contained in our Annual Report on Form 10-K for the fiscal year ended December 31, 2011. This filing contains forward-looking statements that involve risks and uncertainties. Actual results may differ materially from the results described or implied by these forward-looking statements. See “Note on Forward-Looking Statements.”

OVERVIEW

RenaissanceRe was established in Bermuda in 1993 to write principally property catastrophe reinsurance and today is a leading global provider of reinsurance and insurance coverages and related services. Our aspiration is to be the world’s best underwriter of high-severity, low frequency risks. Through our operating subsidiaries, we seek to produce superior returns for our shareholders by being a trusted, long-term partner to our customers, for assessing and managing risk, delivering responsive solutions, and keeping our promises. We accomplish this by leveraging our core capabilities of risk assessment and information management, and by investing in our capabilities to serve our customers across the cycles that have historically characterized our markets. Overall, our strategy focuses on superior risk selection, customer relationships and capital management. We provide value to our customers and joint venture partners in the form of financial security, innovative products, and responsive service. We are known as a leader in paying valid reinsurance claims promptly. We principally measure our financial success through long-term growth in tangible book value per common share plus the change in accumulated dividends, which we believe is the most appropriate measure of our Company’s financial performance, and believe we have delivered superior performance in respect of this measure over time.

Since a substantial portion of the reinsurance and insurance we write provides protection from damages relating to natural and man-made catastrophes, our results depend to a large extent on the frequency and severity of such catastrophic events, and the coverages we offer to customers affected by these events. We are exposed to significant losses from these catastrophic events and other exposures that we cover. Accordingly, we expect a significant degree of volatility in our financial results and our financial results may vary significantly from quarter-to-quarter or from year-to-year, based on the level of insured catastrophic losses occurring around the world.

Our revenues are principally derived from three sources: 1) net premiums earned from the reinsurance and insurance policies we sell; 2) net investment income and realized and unrealized gains from the investment of our capital funds and the investment of the cash we receive on the policies which we sell; and 3) other income received from our joint ventures, advisory services, weather and energy risk management operations and various other items.

Our expenses primarily consist of: 1) net claims and claim expenses incurred on the policies of reinsurance and insurance we sell; 2) acquisition costs which typically represent a percentage of the premiums we write; 3) operating expenses which primarily consist of personnel expenses, rent and other operating expenses; 4) corporate expenses which include certain executive, legal and consulting expenses, costs for research and development, and other miscellaneous costs, including those associated with operating as a publicly traded company; 5) redeemable noncontrolling interest - DaVinciRe, which represents the interest of third parties with respect to the net income (loss) of DaVinciRe; and 6) interest and dividend costs related to our debt and preference shares. We are also subject to taxes in certain jurisdictions in which we operate; however, since the majority of our income is currently earned in Bermuda, a non-taxable jurisdiction, the tax impact to our operations has historically been minimal.

The operating results, also known as the underwriting results, of an insurance or reinsurance company are discussed frequently by reference to its net claims and claim expense ratio, underwriting expense ratio, and combined ratio. The net claims and claim expense ratio is calculated by dividing net claims and claim expenses incurred by net premiums earned. The underwriting expense ratio is calculated by dividing underwriting expenses (acquisition expenses and operational expenses) by net premiums earned. The combined ratio is the sum of the net claims and claim expense ratio and the underwriting expense ratio.

60

A combined ratio below 100% generally indicates profitable underwriting prior to the consideration of investment income. A combined ratio over 100% generally indicates unprofitable underwriting prior to the consideration of investment income. We also discuss our net claims and claim expense ratio on an accident year basis. This ratio is calculated by taking net claims and claim expenses, excluding development on net claims and claim expenses from events that took place in prior fiscal years, divided by net premiums earned.

Segments

Our reportable segments include: (1) Reinsurance, (2) Lloyd’s and (3) Insurance.

Reinsurance

Our Reinsurance segment has two main units:

(1) Property catastrophe reinsurance, written for our own account, and for DaVinci, is our traditional core business. We believe we are one of the world’s leading providers of this coverage, based on catastrophe gross premiums written. This coverage protects against large natural catastrophes, such as earthquakes, hurricanes and tsunamis, as well as claims arising from other natural and man-made catastrophes such as winter storms, freezes, floods, fires, wind storms, tornadoes, explosions and acts of terrorism. We offer this coverage to insurance companies and other reinsurers primarily on an excess of loss basis. This means that we begin paying when our customers’ claims from a catastrophe exceed a certain retained amount.

(2) Specialty reinsurance, written for our own account, and for DaVinci, covering certain targeted classes of business where we believe we have a sound basis for underwriting and pricing the risk that we assume. Our portfolio includes various classes of business, such as catastrophe exposed workers’ compensation, surety, terrorism, energy, aviation, crop, political risk, trade credit, financial, mortgage guarantee, catastrophe-exposed personal lines property, casualty clash, certain other casualty lines and other specialty lines of reinsurance that we collectively refer to as specialty reinsurance. We believe that we are seen as a market leader in certain of these classes of business. We are seeking to expand our specialty reinsurance operations over time, although we cannot assure you that we will do so, particularly in light of current and forecasted market conditions.

Lloyd’s

Our Lloyd’s segment includes insurance and reinsurance business written for our own account through Syndicate 1458. The syndicate enhances our underwriting platform by providing access to Lloyd’s extensive distribution network and worldwide licenses. RenaissanceRe CCL, an indirect wholly owned subsidiary of the Company, is the sole corporate member of Syndicate 1458. We expect Syndicate 1458's absolute and relative contributions to our consolidated results of operations to continue to grow over time.

Insurance

Our Insurance segment includes the insurance policies previously written in connection with our Bermuda-based insurance operations which were not sold to QBE. Our Insurance segment is managed by our Global Chief Underwriting Officer. The Bermuda-based insurance business is written by Glencoe, a Bermuda domiciled excess and surplus lines insurance company that is currently eligible to do business on an excess and surplus lines basis in 49 U.S. states, the District of Columbia, Puerto Rico and the U.S. Virgin Islands. We may from time to time evaluate potential new business opportunities for our Insurance segment.

Other

Our Other category primarily includes the results of: (1) our share of strategic investments in certain markets we believe offer attractive risk-adjusted returns or where we believe our investment adds value, where, rather than assuming exclusive management responsibilities ourselves, we partner with other market participants; (2) our weather and energy risk management operations primarily through Renaissance Trading and REAL, (3) our investment unit which manages and invests the funds generated by our consolidated operations, (4) corporate expenses, capital services costs and noncontrolling interests; and (5) the results of our discontinued operations.

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New Business

From time to time we consider diversification into new ventures, either through organic growth, the formation of new joint ventures, or the acquisition of or the investment in other companies or books of business of other companies. This potential diversification includes opportunities to write targeted, additional classes of risk-exposed business, both directly for our own account and through possible new joint venture opportunities. We also regularly evaluate potential strategic opportunities that we believe might utilize our skills, capabilities, proprietary technology and relationships to support possible expansion into further risk-related coverages, services and products. Generally, we focus on underwriting or trading risks where reasonably sufficient data may be available, and where our analytical abilities may provide us a competitive advantage, in order for us to seek to model estimated probabilities of losses and returns in accordance with our approach in respect of our then current portfolio of risks.

We regularly review potential strategic transactions that might improve our portfolio of business, enhance or focus our strategies, expand our distribution or capabilities, or to seek other benefits. In evaluating potential new ventures or investments, we generally seek an attractive estimated return on equity, the ability to develop or capitalize on a competitive advantage, and opportunities which we believe will not detract from our core operations. While we regularly review potential strategic transactions and periodically engage in discussions regarding possible transactions, there can be no assurance that we will complete any such transactions or that any such transaction would be successful or materially enhance our results of operations or financial condition. We believe that our ability to potentially attract investment and operational opportunities is supported by our strong reputation and financial resources, and by the capabilities and track record of our ventures unit.

During the first six months of 2012, the Company formed and launched two new managed joint ventures, namely Tim Re III and Upsilon Re. Tim Re III and Upsilon Re are partially owned subsidiaries of RenaissanceRe and Bermuda domiciled SPIs, providing collateralized reinsurance of a portfolio of Florida RPP contracts and additional capacity to the worldwide aggregate and per-occurrence retrocessional property catastrophe excess of loss market for the 2012 underwriting year, respectively. Our ownership interest in Tim Re III and Upsilon Re could change over time, perhaps materially so, and we may also elect to underwrite additional risks within Tim Re III and Upsilon Re and these entities to write business in future underwriting years. We cannot assure you that additional opportunities to grow the business we have accessed through Tim Re III and Upsilon Re will be realized, however. See "Note 8. Variable Interest Entities" in our notes to the consolidated financial statements for additional information related to Tim Re III and Upsilon Re.

Risk Management

We seek to develop and effectively utilize sophisticated computer models and other analytical tools to assess and manage the risks that we underwrite and attempt to optimize our portfolio of reinsurance and insurance contracts and other financial risks. Our policies, procedures, tools and resources to monitor and assess our operational risks companywide, as well as our global enterprise-wide risk management practices, are overseen by our Chief Risk Officer, who reports directly to our Chief Financial Officer.

With respect to our Reinsurance operations, since 1993 we have developed and continuously seek to improve our proprietary, computer-based pricing and exposure management system, REMS©. We believe that REMS©, as updated from time to time, is a more robust underwriting and risk management system than is currently commercially available elsewhere in the reinsurance industry and offers us a significant competitive advantage. REMS© was originally developed to analyze catastrophe risks, though we continuously seek ways to enhance the program in order to analyze other classes of risk.

Discontinued Operations

During the fourth quarter of 2010, we made the strategic decision to divest substantially all of our U.S.-based insurance operations in order to focus on the business encompassed within our Reinsurance and Lloyd’s segments and our other businesses. Except as explicitly described as held for sale or as discontinued operations, and unless otherwise noted, all discussions and amounts presented herein relate to our continuing operations. Prior years presented have been reclassified to conform to this new presentation.

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On November 18, 2010, we entered into a Stock Purchase Agreement with QBE to sell substantially all of our U.S.-based insurance operations, including our U.S. property and casualty business underwritten through managing general agents, our crop insurance business underwritten through Agro National Inc. (“Agro National”), our commercial property insurance operations and our claims operations.  We have classified the assets and liabilities associated with this transaction as held for sale. The financial results for these operations have been presented as discontinued operations in our Consolidated Statements of Operations. 

Consideration for the transaction was book value at December 31, 2010, for the aforementioned businesses, payable in cash at closing and subject to adjustment for certain tax and other items. The transaction closed on March 4, 2011 and we received net consideration of $269.5 million.

Pursuant to the Stock Purchase Agreement, the Company was subject to a post-closing review following December 31, 2011 of the net reserve for claims and claim expenses for loss events occurring on or prior to December 31, 2010 (the “Reserve Collar”). Subsequent to the post-closing review, the Company was liable to pay, or otherwise reimburse QBE amounts up to $10.0 million for net adverse development on prior accident years net claims and claim expenses. Conversely, if prior accident years net claims and claim expenses experienced net favorable development, QBE was liable to pay, or otherwise reimburse the Company amounts up to $10.0 million.

During 2011, the Company recognized a $10.0 million liability and corresponding expense in liabilities of discontinued operations held for sale and (loss) income from discontinued operations, respectively, due to purported net adverse development on prior accident years net claims and claim expenses associated with the Reserve Collar.  Effective May 23, 2012, the Company and QBE reached an agreement in respect of the Reserve Collar, and the Company paid QBE the sum of $9.0 million on June 1, 2012, representing full and final settlement of the Reserve Collar and recorded a gain of $1.0 million in income from discontinued operations during the second quarter of 2012.

See “Note 3. Discontinued Operations in our Notes to Consolidated Financial Statements” for additional information.

SUMMARY OF CRITICAL ACCOUNTING ESTIMATES

The Company's critical accounting estimates are discussed in Management's Discussion and Analysis of Financial Condition and Results of Operations found in our Annual Report on Form 10-K for the year ended December 31, 2011.

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SUMMARY OF RESULTS OF OPERATIONS

Below is a discussion of the results of operations for the three months ended June 30, 2012 compared to the three months ended June 30, 2011.

Three months ended June 30,	2012			2011			Change
(in thousands, except per share amounts and percentages)
Statement of operations highlights
Gross premiums written	$	667,336		$	641,563		$	25,773
Net premiums written	427,630			427,995			(365		)
Net premiums earned	244,416			217,175			27,241
Net claims and claim expenses incurred	49,551			151,261			(101,710		)
Underwriting income	127,850			9,732			118,118
Net investment income	14,743			33,328			(18,585		)
Net realized and unrealized gains on investments	31,003			34,979			(3,976		)
Income from continuing operations	183,251			65,511			117,740
Income (loss) from discontinued operations	1,393			(10,094		)	11,487
Net income	184,644			55,417			129,227
Net income available to RenaissanceRe common shareholders	142,270			24,764			117,506
Income from continuing operations available to RenaissanceRe common shareholders per common share – diluted	$	2.72		$	0.68		$	2.04
Income (loss) from discontinued operations per common share – diluted	0.03			(0.20		)	0.23
Net income available to RenaissanceRe common shareholders per common share – diluted	$	2.75		$	0.48		$	2.27
Dividends per common share	$	0.27		$	0.26		$	0.01
Key ratios
Net claims and claim expense ratio – current accident year	38.9		%	79.2		%	(40.3		)%
Net claims and claim expense ratio – prior accident years	(18.6		)%	(9.6		)%	(9.0		)%
Net claims and claim expense ratio – calendar year	20.3		%	69.6		%	(49.3		)%
Underwriting expense ratio	27.4		%	25.9		%	1.5		%
Combined ratio	47.7		%	95.5		%	(47.8		)%
Return on average common equity	17.5		%	3.3		%	14.2		%
Book value	June 30, 2012			March 31, 2012			Change
Book value per common share	$	65.07		$	62.68		$	2.39
Accumulated dividends per common share	11.46			11.19			0.27
Book value per common share plus accumulated dividends	$	76.53		$	73.87		$	2.66
Change in book value per common share plus change in accumulated dividends	4.2		%
Balance sheet highlights	June 30, 2012			March 31, 2012			Change
Total assets	$	8,959,518		$	8,353,598		$	605,920
Total shareholders’ equity attributable to RenaissanceRe	$	3,843,010		$	3,794,565		$	48,445

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Net income available to RenaissanceRe common shareholders was $142.3 million in the second quarter of 2012, compared to $24.8 million in the second quarter of 2011, an improvement of $117.5 million. As a result of our net income available to RenaissanceRe common shareholders in the second quarter of 2012, we generated an annualized return on average common equity of 17.5% and our book value per common share increased from $62.68 at March 31, 2012 to $65.07 at June 30, 2012, a 4.2% increase, after considering the change in accumulated dividends paid to our common shareholders.

The most significant events affecting our financial performance during the second quarter of 2012, on a comparative basis to the second quarter of 2011 include:

• Significantly Improved Underwriting Results - our underwriting income of $127.9 million in the second quarter of 2012 improved $118.1 million from $9.7 million in the second quarter of 2011, primarily due to a relatively low level of insured catastrophes during the second quarter of 2012, compared to $99.9 million of underwriting losses as a result of the U.S. tornadoes in the second quarter of 2011, as detailed below;

• Improved Other Income - other income improved $16.5 million in the second quarter of 2012, compared to the second quarter of 2011, primarily due to our weather and energy risk management operations generating income of $5.9 million, compared to incurring a loss of $3.8 million, primarily as a result of positive results from its positions in the United Kingdom and its summer positions as at June 30, 2012 in certain regions of the United States and Canada;

• Income from Discontinued Operations - income (loss) from discontinued operations improved to income of $1.4 million in the second quarter of 2012, compared to a loss of $10.1 million in the second quarter of 2011 principally due to the absence of a $10.0 million expense recorded in the second quarter of 2011 related to the Reserve Collar with QBE; partially offset by

• Lower Investment Results - net investment income and net realized and unrealized gains on investments in the second quarter of 2012 decreased $18.6 million and $4.0 million, respectively, compared to the second quarter of 2011. The decrease in our investment results was primarily due to lower returns on our portfolio of other investments, principally our private equity investments; and

• Net Income (Loss) Attributable to Redeemable Noncontrolling Interest - DaVinciRe - our net income attributable to redeemable noncontrolling interest - DaVinciRe was $33.6 million in the second quarter of 2012, compared to $21.7 million in the second quarter of 2011, a change of $11.9 million, principally due to an increase in net income in DaVinciRe, combined with a decrease in our ownership in DaVinciRe from 42.8% at June 30, 2011 to 31.5% at June 30, 2012, consequently increasing redeemable noncontrolling interest - DaVinciRe.

Net Negative Impact of U.S. Tornadoes in the Second Quarter of 2011

Net negative impact includes the sum of estimates of net claims and claim expenses incurred, earned reinstatement premiums assumed and ceded, lost profit commissions and redeemable noncontrolling interest - DaVinciRe. Our estimates are based on a review of our potential exposures, preliminary discussions with certain counterparties and catastrophe modeling techniques. Given the magnitude and recent occurrence of the U.S. tornadoes, delays in receiving claims data, potential uncertainties relating to reinsurance recoveries and other uncertainties inherent in loss estimation, meaningful uncertainty remains regarding losses from the U.S. tornadoes. Accordingly, our actual net negative impact from the U.S. tornadoes will vary from these preliminary estimates, perhaps materially so. Changes in these estimates will be recorded in the period in which they occur.

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See the financial data below for additional information detailing the net negative impact of the U.S. tornadoes on our consolidated financial statements for the second quarter of 2011.

Three months ended June 30, 2011	U.S. Tornadoes
(in thousands, except percentages)
Net claims and claim expenses incurred	$	(121,655	)
Reinstatement premiums earned	22,499
Lost profit commissions	(708		)
Net negative impact on underwriting result	(99,864		)
Redeemable noncontrolling interest - DaVinciRe	29,054
Net negative impact	$	(70,810	)
Percentage point impact on consolidated combined ratio	51.8
Net negative impact on Reinsurance segment underwriting result	(96,944		)
Net negative impact on Lloyd's segment underwriting result	(2,920		)
Net negative impact on underwriting result	$	(99,864	)

Underwriting Results by Segment

Reinsurance Segment

Below is a summary of the underwriting results and ratios for our Reinsurance segment followed by an analysis of our catastrophe unit and specialty reinsurance unit underwriting results and ratios:

Reinsurance segment overview
Three months ended June 30,	2012			2011			Change
(in thousands, except percentages)
Gross premiums written	$	617,039		$	607,404		$	9,635
Net premiums written	$	379,369		$	395,856		$	(16,487	)
Net premiums earned	$	214,296		$	199,461		$	14,835
Net claims and claim expenses incurred	35,488			143,219			(107,731		)
Acquisition expenses	20,098			10,431			9,667
Operational expenses	30,346			32,901			(2,555		)
Underwriting income	$	128,364		$	12,910		$	115,454
Net claims and claim expenses incurred – current accident year	$	76,631		$	162,398		$	(85,767	)
Net claims and claim expenses incurred – prior accident years	(41,143		)	(19,179		)	(21,964		)
Net claims and claim expenses incurred – total	$	35,488		$	143,219		$	(107,731	)
Net claims and claim expense ratio – current accident year	35.8		%	81.4		%	(45.6		)%
Net claims and claim expense ratio – prior accident years	(19.2		)%	(9.6		)%	(9.6		)%
Net claims and claim expense ratio – calendar year	16.6		%	71.8		%	(55.2		)%
Underwriting expense ratio	23.5		%	21.7		%	1.8		%
Combined ratio	40.1		%	93.5		%	(53.4		)%

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Reinsurance Segment Gross Premiums Written – Gross premiums written in our Reinsurance segment increased by $9.6 million, or 1.6%, to $617.0 million in the second quarter of 2012, compared to $607.4 million in the second quarter of 2011. Excluding the impact of negative reinstatement premiums adjustments on the 2011 New Zealand and Tohoku earthquakes of $30.7 million recorded in the second quarter of 2012, as discussed below, and reinstatement premiums written in the second quarter of 2011 of $23.2 million, as discussed above, related primarily to the U.S. tornadoes, our Reinsurance segment gross premiums written increased $63.4 million or 10.9%, primarily due to our catastrophe unit writing more business during the June 2012 renewals, as well as the inception of certain new contracts in our specialty unit which met our risk-adjusted return thresholds and some loss related premiums in our specialty unit in the second quarter of 2012. During the second quarter of 2012, our remaining incurred but not reported (“IBNR”) reserves for the 2011 New Zealand and Tohoku earthquakes were allocated to the contract level and in doing so we re-estimated our allocation of losses from higher rate on line excess of loss retrocessional reinsurance contracts to lower rate on line excess of loss primary reinsurance contracts resulting in a downward adjustment to our estimate of ultimate reinstatement premiums from these two large events.  In addition, the reinstatement premiums were also impacted by changes to the ultimate losses for these events.  The net negative impact from the movement in the ultimate reinstatement premium and related losses for these two large events was $19.8 million for the second quarter of 2012.  With the passage of time more information in respect of these two large events will become known, including updated reported losses from our clients, and the losses will subsequently be paid and the reinstatement premium ultimately received, which will likely result in further changes to our estimated ultimate losses and reinstatement premiums from these two large events, perhaps materially so.

Our Reinsurance segment premiums are prone to significant volatility due to the timing of contract inception and also due to the business being characterized by a relatively small number of relatively large transactions. In addition, our property catastrophe reinsurance gross premiums written continue to be characterized by a large percentage of U.S. and Caribbean premium as we have found business derived from exposures in Europe and the rest of the world to be, in general, less attractive on a risk-adjusted basis during recent periods. A significant amount of our U.S. and Caribbean premium provides coverage against windstorms, mainly U.S. Atlantic hurricanes, as well as earthquakes and other natural and man-made catastrophes.

Reinsurance Segment Underwriting Results – Our Reinsurance segment generated underwriting income of $128.4 million in the second quarter of 2012, compared to $12.9 million in the second quarter of 2011, an increase of $115.5 million. In the second quarter of 2012, our Reinsurance segment generated a net claims and claim expense ratio of 16.6%, an underwriting expense ratio of 23.5% and a combined ratio of 40.1%, compared to 71.8%, 21.7% and 93.5%, respectively, in the second quarter of 2011.

The $115.5 million increase in the Reinsurance segment's underwriting result and 53.4 percentage point decrease in the combined ratio was principally due to the relatively low level of insured catastrophes in the second quarter of 2012, compared to the second quarter of 2011. The U.S. tornadoes during the second quarter of 2011 had a net negative impact on the Reinsurance segment underwriting result of $96.9 million and added 55.5 percentage points to the Reinsurance segment combined ratio, after considering the impact of net reinstatement premiums earned and net lost profit commission related to these events, as detailed in the table below.

Three months ended June 30, 2011	U.S. Tornadoes
(in thousands, except percentages)
Net claims and claim expenses incurred	$	(118,655	)
Reinstatement premiums earned	22,419
Lost profit commissions	(708		)
Net negative impact on Reinsurance segment underwriting result	$	(96,944	)
Percentage point impact on Reinsurance segment combined ratio	55.5
Net negative impact on catastrophe unit underwriting result	$	(96,944	)
Net negative impact on specialty unit underwriting result	—
Net negative impact on Reinsurance segment underwriting result	$	(96,944	)

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Our Reinsurance segment prior year reserves experienced $41.1 million and $19.2 million of net favorable development in the second quarter of 2012 and 2011, respectively. The favorable development on prior year reserves in the second quarter of 2012 included $33.2 million related to our catastrophe reinsurance unit and $7.9 million related to our specialty reinsurance unit, as discussed below in the underwriting results of the catastrophe and specialty units, respectively.

We have entered into joint ventures and specialized quota share cessions of our book of business. In accordance with the joint venture and quota share agreements, we are entitled to certain profit commissions and fee income. We record these profit commissions and fees as a reduction in acquisition and operating expenses and, accordingly, these fees have reduced our underwriting expense ratios. These fees totaled $18.5 million and $24.6 million in the second quarter of 2012 and 2011, respectively, and resulted in a corresponding decrease to the Reinsurance segment underwriting expense ratio of 8.7% and 12.3%, respectively. In addition, we are entitled to certain fee income and profit commissions from DaVinci. Because the results of DaVinci, and its parent DaVinciRe, are consolidated in our results of operations, these fees and profit commissions are eliminated in our consolidated financial statements and are principally reflected in redeemable noncontrolling interest – DaVinciRe. The net impact of all fees and profit commissions related to these joint ventures and specialized quota share cessions within our Reinsurance segment was $31.8 million and $15.5 million in the second quarter of 2012 and 2011, respectively.

Catastrophe

Below is a summary of the underwriting results and ratios for our catastrophe unit:

Catastrophe unit overview
Three months ended June 30,	2012			2011			Change
(in thousands, except percentages)
Property catastrophe gross premiums written
Renaissance	$	345,094		$	366,929		$	(21,835	)
DaVinci	234,644			216,317			18,327
Total property catastrophe gross premiums written	$	579,738		$	583,246		$	(3,508	)
Net premiums written	$	344,497		$	373,039		$	(28,542	)
Net premiums earned	$	170,637		$	167,509		$	3,128
Net claims and claim expenses incurred	19,578			127,374			(107,796		)
Acquisition expenses	14,847			5,896			8,951
Operational expenses	23,245			25,460			(2,215		)
Underwriting income	$	112,967		$	8,779		$	104,188
Net claims and claim expenses incurred – current accident year	$	52,781		$	139,161		$	(86,380	)
Net claims and claim expenses incurred – prior accident years	(33,203		)	(11,787		)	(21,416		)
Net claims and claim expenses incurred – total	$	19,578		$	127,374		$	(107,796	)
Net claims and claim expense ratio – current accident year	30.9		%	83.1		%	(52.2		)%
Net claims and claim expense ratio – prior accident years	(19.4		)%	(7.1		)%	(12.3		)%
Net claims and claim expense ratio – calendar year	11.5		%	76.0		%	(64.5		)%
Underwriting expense ratio	22.3		%	18.8		%	3.5		%
Combined ratio	33.8		%	94.8		%	(61.0		)%

Catastrophe Reinsurance Gross Premiums Written – In the second quarter of 2012 our catastrophe reinsurance gross premiums written decreased by $3.5 million, or 0.6%, to $579.7 million, compared to $583.2 million in the second quarter of 2011. Excluding the impact of $30.7 million of negative reinstatement premiums adjustments recorded in the second quarter of 2012, and reinstatement premiums written in the second quarter of 2011 of $23.0 million, each as discussed above, the catastrophe unit gross

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premiums written increased $50.3 million, or 9.0%, in the second quarter of 2012, primarily due to our catastrophe unit writing more business during the June 2012 renewals, and inclusive of $37.7 million of gross premiums written on behalf of our most recent fully-collateralized joint venture, Tim Re III.

Our property catastrophe reinsurance gross premiums written continue to be characterized by a large percentage of U.S. and Caribbean premium, as we have found business derived from exposures in Europe or the rest of the world to be, in general, less attractive on a risk-adjusted basis during recent periods. A significant amount of our U.S. and Caribbean premium provides coverage against windstorms, mainly U.S. Atlantic hurricanes, as well as earthquakes and other natural and man-made catastrophes.

Catastrophe Reinsurance Underwriting Results – Our catastrophe unit generated underwriting income of $113.0 million in the second quarter of 2012, compared to $8.8 million in the second quarter of 2011, an increase of $104.2 million. The increase in underwriting income was principally due to a $86.4 million decrease in current accident year claims and claim expenses as a result of the relatively low level of insured catastrophes in the second quarter of 2012, compared to the second quarter of 2011 which was negatively impacted by net claims and claim expenses related to the U.S. tornadoes of $118.7 million.

In the second quarter of 2012, our catastrophe unit generated a net claims and claim expense ratio of 11.5%, an underwriting expense ratio of 22.3% and a combined ratio of 33.8%, compared to 76.0%, 18.8% and 94.8%, respectively, in the second quarter of 2011. As noted above, the catastrophe unit experienced a relatively low level of insured catastrophes in the second quarter of 2012, with $52.8 million of current accident year net claims and claim expenses, including net claims and claim expenses of $20.5 million related to the June 29, 2012 derecho (PCS 83) which impacted the Midwest to Mid-Atlantic coast of the U.S. In comparison, the second quarter of 2011 was negatively impacted by the U.S. tornadoes and resulted in $118.7 million of net claims and claim expenses which had a net negative impact on the catastrophe unit underwriting result of $96.9 million and added 67.7 percentage points to the catastrophe unit combined ratio, after considering the impact of net reinstatement premiums earned and net lost profit commission related to the U.S. tornadoes, as detailed in the table below.

Three months ended June 30, 2011	U.S. Tornadoes
(in thousands, except percentages)
Net claims and claim expenses incurred	$	(118,655	)
Reinstatement premiums earned	22,419
Lost profit commissions	(708		)
Net negative impact on catastrophe unit underwriting result	$	(96,944	)
Percentage point impact on catastrophe unit combined ratio	67.7

During the second quarter of 2012, we experienced $33.2 million of favorable development on prior year reserves within the catastrophe unit, compared to $11.8 million of favorable development on prior years reserves in the second quarter of 2011, primarily due to reductions in estimated ultimate losses on certain specific events occurring in prior accident years including the Tohoku earthquake ($10.6 million), the 2011 Thailand floods ($3.9 million), a number of other relatively small catastrophes and $5.9 million of actuarial assumption changes, partially offset by adverse development on the 2011 New Zealand earthquake of $5.9 million. The $5.9 million of actuarial assumption changes noted above were related to our small catastrophe paid loss development curve due to better than expected paid loss activity. The favorable development of $11.8 million in the second quarter of 2011 was primarily related to decreases in estimated ultimate losses on certain specific events, including $3.5 million related to the 2005 hurricanes and $3.0 million related to the 2007 California wildfires, with the remainder due to better than expected claims emergence associated with a number of other catastrophes.

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Specialty

Below is a summary of the underwriting results and ratios for our specialty reinsurance unit:

Specialty unit overview
Three months ended June 30,	2012			2011			Change
(in thousands, except percentages)
Specialty gross premiums written
Renaissance	$	35,778		23,066			$	12,712
DaVinci	1,523			1,092			431
Total specialty gross premiums written	$	37,301		$	24,158		$	13,143
Net premiums written	$	34,872		$	22,817		$	12,055
Net premiums earned	$	43,659		$	31,952		$	11,707
Net claims and claim expenses incurred	15,910			15,845			65
Acquisition expenses	5,251			4,535			716
Operational expenses	7,101			7,441			(340		)
Underwriting income	$	15,397		$	4,131		$	11,266
Net claims and claim expenses incurred – current accident year	$	23,850		$	23,237		$	613
Net claims and claim expenses incurred – prior accident years	(7,940		)	(7,392		)	(548		)
Net claims and claim expenses incurred – total	$	15,910		$	15,845		$	65
Net claims and claim expense ratio – current accident year	54.6		%	72.7		%	(18.1		)%
Net claims and claim expense ratio – prior accident years	(18.2		)%	(23.1		)%	4.9		%
Net claims and claim expense ratio – calendar year	36.4		%	49.6		%	(13.2		)%
Underwriting expense ratio	28.3		%	37.5		%	(9.2		)%
Combined ratio	64.7		%	87.1		%	(22.4		)%

Specialty Reinsurance Gross Premiums Written – In the second quarter of 2012, our specialty reinsurance gross premiums written increased $13.1 million, or 54.4%, to $37.3 million, compared to $24.2 million in the second quarter of 2011, primarily due to the inception of several new quota share contracts and loss related premiums during the second quarter of 2012.

Specialty Reinsurance Underwriting Results – Our specialty unit generated $15.4 million of underwriting income in the second quarter of 2012, compared to $4.1 million in the second quarter of 2011, an increase of $11.3 million, principally due to an $11.7 million increase in net premiums earned as a result of the increase in gross premiums written, as noted above.

In the second quarter of 2012, our specialty unit generated a net claims and claim expense ratio of 36.4%, an underwriting expense ratio of 28.3% and a combined ratio of 64.7%, compared to 49.6%, 37.5% and 87.1%, respectively, in the second quarter of 2011. The 13.2% percentage point decrease in the underwriting expense ratio was principally driven by the increase in net premiums earned during the second quarter of 2012 as a result of the increase in gross premiums written, as noted above, compared to the second quarter of 2011, while underwriting expenses were relatively flat.

Current accident year net claims and claim expenses of $23.9 million was principally comprised of the application of our formulaic reserving methodologies for establishing incurred but not reported reserves for net claims and claim expenses.

The favorable development of $7.9 million and $7.4 million within our specialty reinsurance unit in the second quarter of 2012 and 2011, respectively, was principally the result of lower than expected claims emergence.

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Lloyd’s Segment

Below is a summary of the underwriting results and ratios for our Lloyd’s segment:

Lloyd’s segment overview
Three months ended June 30,	2012			2011			Change
(in thousands, except percentages)
Lloyd’s gross premiums written
Specialty	$	32,925		$	17,546		$	15,379
Catastrophe	17,372			16,580			792
Total Lloyd’s gross premiums written	$	50,297		$	34,126		$	16,171
Net premiums written	$	48,510		$	32,084		$	16,426
Net premiums earned	$	30,369		$	17,233		$	13,136
Net claims and claim expenses incurred	14,960			8,619			6,341
Acquisition expenses	5,510			3,305			2,205
Operational expenses	10,806			8,635			2,171
Underwriting loss	$	(907	)	$	(3,326	)	$	2,419
Net claims and claim expenses incurred – current accident year	$	18,366		$	9,612		$	8,754
Net claims and claim expenses incurred – prior accident years	(3,406		)	(993		)	(2,413		)
Net claims and claim expenses incurred – total	$	14,960		$	8,619		$	6,341
Net claims and claim expense ratio – current accident year	60.5		%	55.8		%	4.7		%
Net claims and claim expense ratio – prior accident years	(11.2		)%	(5.8		)%	(5.4		)%
Net claims and claim expense ratio – calendar year	49.3		%	50.0		%	(0.7		)%
Underwriting expense ratio	53.7		%	69.3		%	(15.6		)%
Combined ratio	103.0		%	119.3		%	(16.3		)%

Lloyd’s Gross Premiums Written – Gross premiums written in our Lloyd's segment increased by $16.2 million, or 47.4%, to $50.3 million in the second quarter of 2012, compared to $34.1 million in the second quarter of 2011, primarily due to Syndicate 1458 growing its book of business across the majority of its lines of business.

Lloyd’s Underwriting Results – Our Lloyd's segment incurred an underwriting loss of $0.9 million and generated a combined ratio of 103.0% in the second quarter of 2012, compared to $3.3 million and 119.3%, respectively, in the second quarter of 2011. Our Lloyd's segment experienced current accident year net claims and claim expenses of $18.4 million during the second quarter of 2012 which was principally due to the application of our formulaic reserving methodologies for establishing incurred but not reported reserves for net claims and claim expenses, compared to the second quarter of 2011 which was negatively impacted $3.0 million by the U.S. tornadoes. Operational expenses increased $2.2 million to $10.8 million in the second quarter of 2012, compared to the second quarter of 2011, and principally include compensation and related operating expenses. The decrease in the underwriting expense ratio to 53.7% in the second quarter of 2012, from 69.3% in the second quarter of 2011, was primarily driven by the increase in net premiums earned.

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Insurance segment

Below is a summary of the underwriting results and ratios for our Insurance segment:

Insurance segment overview
Three months ended June 30,	2012			2011			Change
(in thousands, except percentages)
Gross premiums written	$	—		$	33		$	(33	)
Net premiums written	$	(249	)	$	55		$	(304	)
Net premiums earned	$	(249	)	$	481		$	(730	)
Net claims and claim expenses incurred	(897		)	(577		)	(320		)
Acquisition expenses	—			147			(147		)
Operational expenses	255			763			(508		)
Underwriting income	$	393		$	148		$	245
Net claims and claim expenses incurred – current accident year	$	—		$	(78	)	$	78
Net claims and claim expenses incurred – prior accident years	(897		)	(499		)	(398		)
Net claims and claim expenses incurred – total	$	(897	)	$	(577	)	$	(320	)
Net claims and claim expense ratio – current accident year	—		%	(16.2		)%	16.2		%
Net claims and claim expense ratio – prior accident years	360.2		%	(103.8		)%	464.0		%
Net claims and claim expense ratio – calendar year	360.2		%	(120.0		)%	480.2		%
Underwriting expense ratio	(102.4		)%	189.2		%	(291.6		)%
Combined ratio	257.8		%	69.2		%	188.6		%

Insurance Segment Gross Premiums Written – Insurance policies and quota-share reinsurance contracts written in connection with our Bermuda-based insurance operations not sold to QBE are included in continuing operations and are reported in our Insurance segment. Although we are not actively underwriting new business in the Insurance segment at this time, we may from time to time evaluate potential new business opportunities for our Insurance segment. Gross premiums written in our Insurance segment during the second quarter of 2011 were primarily attributable to premium adjustments on prior underwriting year contracts. Gross premiums written in the Insurance segment can fluctuate significantly between quarters and between years based on several factors, including, without limitation, the timing of the inception or cessation of quota share reinsurance contracts, including whether or not the Company has portfolio transfers in, or portfolio transfers out, of quota share reinsurance contracts of in-force books of business.

Insurance Segment Underwriting Results – Our Insurance segment generated underwriting income of $0.4 million in the second quarter of 2012, primarily due to favorable development on prior accident years of $0.9 million as a result of reductions in reported losses on certain attritional loss contracts.

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Net Investment Income

Three months ended June 30,	2012			2011			Change
(in thousands)
Fixed maturity investments	$	22,436		$	24,426		$	(1,990	)
Short term investments	234			433			(199		)
Equity investments trading	181			112			69
Other investments
Hedge funds and private equity investments	(10,413		)	8,230			(18,643		)
Other	4,975			2,838			2,137
Cash and cash equivalents	54			45			9
	17,467			36,084			(18,617		)
Investment expenses	(2,724		)	(2,756		)	32
Net investment income	$	14,743		$	33,328		$	(18,585	)

Net investment income was $14.7 million in the second quarter of 2012, compared to $33.3 million in the second quarter of 2011. The $18.6 million decrease in net investment income was primarily due to lower returns in our portfolio of other investments, principally our private equity investments.

Historically low interest rates as compared to recent years have lowered the yields at which we invest our assets relative to historical levels. We expect these developments, combined with the current composition of our investment portfolio and other factors, to continue to put downward pressure on our net investment income for the near term. The hedge fund, private equity and other investment portfolios are accounted for at fair value with the change in fair value recorded in net investment income which included net unrealized losses of $13.4 million in the second quarter of 2012, compared to unrealized gains of $5.7 million in the second quarter of 2011.

Commencing in the first quarter of 2011, we established a portfolio of certain publicly traded equities which are reflected in our consolidated balance sheet as equity investments trading. This portfolio of equity investments is carried at fair value with dividend income included in net investment income, and realized and unrealized gains included in net realized and unrealized gains on investments, in our consolidated statements of operations. We may add to this portfolio during subsequent periods, although we do not expect it to represent a material portion of our invested assets or our financial results for the reasonably foreseeable period.

Net Realized and Unrealized Gains on Investments and Net Other-Than-Temporary Impairments

Three months ended June 30,	2012			2011			Change
(in thousands)
Gross realized gains	$	19,458		$	15,430		$	4,028
Gross realized losses	(3,294		)	(4,156		)	862
Net realized gains on fixed maturity investments	16,164			11,274			4,890
Net unrealized gains on fixed maturity investments trading	12,538			24,728			(12,190		)
Net unrealized gains (losses) on equity investments trading	2,301			(1,023		)	3,324
Net realized and unrealized gains on investments	$	31,003		$	34,979		$	(3,976	)
Total other-than-temporary impairments	(234		)	—			(234		)
Portion recognized in other comprehensive income, before taxes	25			—			25
Net other-than-temporary impairments	$	(209	)	$	—		$	(209	)

Our investment portfolio is structured to preserve capital and provide us with a high level of liquidity. A large majority of our investments are invested in the fixed income markets and, therefore, our realized holding gains and losses on investments are highly correlated to fluctuations in interest rates. Therefore, as interest

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rates decline, we will tend to have realized and unrealized gains from our investment portfolio, and as interest rates rise, we will tend to have realized and unrealized losses from our investment portfolio. We experienced net realized and unrealized gains on fixed maturity investments included in our consolidated statements of operations of $28.7 million during the second quarter of 2012. However, we cannot assure you that this trend will continue as historically low interest rates (as compared to recent years) may increase in the near term resulting in a rising interest rate environment which would tend to diminish our ability to generate net realized gains on our portfolio of fixed maturity investments.

Net realized and unrealized gains on investments were $31.0 million in the second quarter of 2012, compared to $35.0 million in the second quarter of 2011, a decrease of $4.0 million. The net unrealized gains on our fixed maturity investments trading of $12.5 million during the the second quarter of 2012 decreased $12.2 million, compared to $24.7 million in the second quarter of 2011, primarily due to the net depreciation of our fixed maturity investment portfolio as a result of widening credit spreads during the second quarter of 2012. Included in net realized and unrealized gains on investment in the second quarter of 2012 is $2.3 million of net unrealized gains on equity investments trading due to increases in the share prices of our equity positions.

Equity in Earnings of Other Ventures

Three months ended June 30,	2012			2011			Change
(in thousands)
Top Layer Re	$	5,113		$	3,967		$	1,146
Tower Hill Companies	1,744			1,216			528
Other	(11		)	(55		)	44
Total equity in earnings of other ventures	$	6,846		$	5,128		$	1,718

Equity in earnings of other ventures primarily represents our pro-rata share of the net income from our investments in Top Layer Re and the Tower Hill Companies and was $6.8 million in the second quarter of 2012, compared to $5.1 million in the second quarter of 2011. The $1.7 million improvement in equity in earnings of other ventures was primarily due to improved profitability in both Top Layer Re and the Tower Hill Companies. The equity in earnings from the Tower Hill Companies is recorded one quarter in arrears.

Other Income (Loss)

Three months ended June 30,	2012		2011			Change
(in thousands)
Weather and energy risk management operations	$	5,875	$	(3,779	)	$	9,654
Assumed and ceded reinsurance contracts accounted for as derivatives and deposits	4,082		(1,022		)	5,104
Other	1,332		(366		)	1,698
Total other income (loss)	$	11,289	$	(5,167	)	$	16,456

In the second quarter of 2012 we generated other income of $11.3 million, compared to an other loss of $5.2 million in the second quarter of 2011. The $16.5 million improvement in other income is primarily due our weather and energy risk management operations generating income of $5.9 million, compared to incurring a loss of $3.8 million primarily as a result of positive results from its positions in the United Kingdom and its summer positions as at June 30, 2012 in certain regions of the United States and Canada.

Certain contracts we enter into in our weather and energy risk operations are informed in part on proprietary weather forecasts provided by our Weather Predict subsidiary. The weather and energy risk operations in which we engage are both seasonal and volatile, and there is no assurance that our performance to date will be indicative of future periods.  We continue to allocate capital to our weather and energy risk management operations. This operation continually seeks new markets and relationships for its weather and energy risk products, including leveraging strategic affiliations and ceding risk where appropriate.  Although there can be no assurances, it is possible that our results from these activities will increase on an absolute or relative basis over time.  We have expanded our weather and energy risk management

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operations in the last several years to include weather contingent energy products and by increasing the size and volume of transactions with respect to our previously existing weather and energy risk management operations.  The weather and energy risk management operations results include net realized and unrealized gains and losses on agreements with end users and net realized and unrealized gains and losses on hedging and trading activities.  We are currently in the process of enhancing our weather and energy risk management infrastructure and operations. These activities present certain operational as well as financial risks, which we seek to mitigate, although there can be no assurance that we will be able to successfully mitigate such risks.

Corporate Expenses

Three months ended June 30,	2012		2011		Change
(in thousands)
Total corporate expenses	$	4,067	$	4,011	$	56

Corporate expenses include certain executive, director, legal and consulting expenses, costs for research and development, impairment charges related to goodwill and other intangible assets, and other miscellaneous costs, including those associated with operating as a publicly traded company. Corporate expenses were relatively flat at $4.1 million in the second quarter of 2012, compared to $4.0 million in the second quarter of 2011.

Net Income Attributable to Noncontrolling Interests

Three months ended June 30,	2012			2011			Change
(in thousands)
Net income attributable to noncontrolling interests	$	(33,624	)	$	(21,903	)	$	(11,721	)

Our net income attributable to the noncontrolling interests was $33.6 million in the second quarter of 2012, compared to $21.9 million in the second quarter of 2011. The $11.7 million change is primarily due to an increase in the profitability of DaVinciRe and a decrease in our ownership in DaVinciRe from 42.8% at June 30, 2011 to 31.5% at June 30, 2012, consequently increasing redeemable noncontrolling interest - DaVinciRe. We expect our ownership in DaVinciRe to fluctuate over time.

Income (Loss) from Discontinued Operations

Three months ended June 30,	2012		2011			Change
(in thousands)
Income (loss) from discontinued operations	$	1,393	$	(10,094	)	$	11,487

Income (loss) from discontinued operations includes the financial results of substantially all of our U.S.-based insurance operations sold to QBE. Income from discontinued operations of $1.4 million in the second quarter of 2012 is primarily due to recognizing a gain of $1.0 million on the settlement of the Reserve Collar, as noted below, compared to a loss from discontinued operations of $10.1 million in the second quarter of 2011 which was primarily due to the recognition of a $10.0 million expense related to the contractually agreed obligation to pay, or otherwise reimburse, QBE for amounts potentially up to $10.0 million in respect of net adverse development on prior accident years net claims and claim expenses. Effective May 23, 2012, the Company and QBE reached an agreement in respect of the Reserve Collar, and the Company paid QBE the sum of $9.0 million on June 1, 2012, representing full and final settlement of the Reserve Collar.

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SUMMARY OF RESULTS OF OPERATIONS

Below is a discussion of the results of operations for the six months ended June 30, 2012 compared to the six months ended June 30, 2011.

Six months ended June 30,	2012			2011			Change
(in thousands, except per share amounts and percentages)
Statement of operations highlights
Gross premiums written	$	1,331,487		$	1,252,068		$	79,419
Net premiums written	920,205			880,570			39,635
Net premiums earned	523,081			522,716			365
Net claims and claim expenses incurred	65,103			779,798			(714,695		)
Underwriting income (loss)	324,469			(387,429		)	711,898
Net investment income	81,714			93,609			(11,895		)
Net realized and unrealized gains on investments	77,116			29,765			47,351
Income (loss) from continuing operations	447,244			(257,738		)	704,982
Income (loss) from discontinued operations	1,220			(11,620		)	12,840
Net income (loss)	448,464			(269,358		)	717,822
Net income (loss) available (attributable) to RenaissanceRe common shareholders	343,699			(223,269		)	566,968
Income (loss) from continuing operations available (attributable) to RenaissanceRe common shareholders per common share – diluted	$	6.61		$	(4.16	)	$	10.77
Income (loss) from discontinued operations per common share – diluted	0.02			(0.23		)	0.25
Net income (loss) available (attributable) to RenaissanceRe common shareholders per common share – diluted	$	6.63		$	(4.39	)	$	11.02
Dividends per common share	$	0.54		$	0.52		$	0.02
Key ratios
Net claims and claim expense ratio – current accident year	31.8		%	166.2		%	(134.4		)%
Net claims and claim expense ratio – prior accident years	(19.4		)%	(17.0		)%	(2.4		)%
Net claims and claim expense ratio – calendar year	12.4		%	149.2		%	(136.8		)%
Underwriting expense ratio	25.6		%	24.9		%	0.7		%
Combined ratio	38.0		%	174.1		%	(136.1		)%
Return on average common equity	21.5		%	(14.4		)%	35.9		%
Book value	June 30, 2012			December 31, 2011			Change
Book value per common share	$	65.07		$	59.27		$	5.80
Accumulated dividends per common share	11.46			10.92			0.54
Book value per common share plus accumulated dividends	$	76.53		$	70.19		$	6.34
Change in book value per common share plus change in accumulated dividends	10.7		%
Balance sheet highlights	June 30, 2012			December 31, 2011			Change
Total assets	$	8,959,518		$	7,744,912		$	1,214,606
Total shareholders’ equity attributable to RenaissanceRe	$	3,843,010		$	3,605,193		$	237,817

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Net income available to RenaissanceRe common shareholders was $343.7 million in the first six months of 2012, compared to a net loss attributable to RenaissanceRe common shareholders of $223.3 million in the first six months of 2011, an improvement of $567.0 million. As a result of our net income available to RenaissanceRe common shareholders in the first six months of 2012, we generated an annualized return on average common equity of 21.5% and our book value per common share increased from $59.27 at December 31, 2011 to $65.07 at June 30, 2012, a 10.7% increase, after considering the change in accumulated dividends paid to our common shareholders.

The most significant events affecting our financial performance during the first six months of 2012, on a comparative basis to the first six months of 2011 include:

• Significantly Improved Underwriting Results - our underwriting income of $324.5 million in the first six months of 2012 improved $711.9 million from an underwriting loss of $387.4 million in the first six months of 2011, primarily due to a relatively low level of insured catastrophes in the first six months of 2012 and improved pricing which resulted in higher premiums, compared to $662.5 million of underwriting losses as a result of a number of large losses which occurred in the first six months of 2011, namely the 2011 New Zealand and Tohoku earthquakes, the Australian floods and the U.S. tornadoes (collectively referred to as the "2011 Large Losses"), as detailed below;

• Higher Investment Results - our net realized and unrealized gains on investments increased $47.4 million in the first six months of 2012, compared to the first six months of 2011, primarily due to increased turnover and improved valuations in our fixed maturity investments portfolio combined with improved valuations within our equity investments portfolio. The increase in our net realized and unrealized gains on investments was partially offset by a $11.9 million decrease in net investment income in the first six months of 2012, compared to the first six months of 2011, primarily as a result of lower returns from our private equity investments portfolio;

• Equity in Earnings of Other Ventures - our equity in earnings of other ventures improved to earnings of $12.3 million in the first six months of 2012, compared to a loss of $18.6 million in the first six months of 2011. The $30.9 million improvement is primarily due to our equity investment in Top Layer Re which generated income of $9.9 million in the first six months of 2012, compared to a loss of $18.5 million in the first six months of 2011, an improvement of $28.4 million, principally due to the absence of large losses during the first six months of 2012, compared to claims and claim expenses incurred in the first six months of 2011 in Top Layer Re related to the 2011 New Zealand earthquake; and partially offset by

• Net (Income) Loss Attributable to Redeemable Noncontrolling Interest - DaVinciRe - our net income attributable to redeemable noncontrolling interest - DaVinciRe was $87.0 million in the first six months of 2012, compared to net loss attributable to redeemable noncontrolling interest - DaVinciRe of $64.0 million in the first six months of 2011, a change of $151.0 million, principally due to a significant improvement in underwriting income as a result of the decrease in current accident year net claims and claim expenses and higher investment results, as noted above, which also impacted DaVinciRe, and together resulted in net income for the first six months of 2012, compared to net loss in the first six months of 2011. In addition, our ownership in DaVinciRe decreased from 42.8% at June 30, 2011 to 31.5% at June 30, 2012, consequently increasing redeemable noncontrolling interest - DaVinciRe; and

• Other (Loss) Income - our other (loss) income deteriorated $72.8 million to a loss of $27.8 million in the first six months of 2012, compared to income of $45.0 million in the first six months of 2011, primarily the result of $29.6 million of trading losses within the Company's weather and energy risk management operations due to the unusually warm weather experienced in parts of the United Kingdom and parts of the United States experienced during the first quarter of 2012, compared to a trading loss of $0.5 million in the first six months of 2011; and ceded reinsurance contracts accounted for at fair value which generated income of $2.3 millionthe first six months of 2012, compared to $42.5 million in the first six months of 2011, due to net recoverables on the Tohoku earthquake in the first quarter of 2011 which did not reoccur in the first six months of 2012.

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Net Negative Impact of the 2011 Large Losses

Net negative impact includes the sum of estimates of net claims and claim expenses incurred, earned reinstatement premiums assumed and ceded, lost profit commissions, redeemable noncontrolling interest - DaVinci Re, equity in the net claims and claim expenses of Top Layer Re, and other income in respect of ceded reinsurance contracts accounted for at fair value. Our estimates are based on a review of our potential exposures, preliminary discussions with certain counterparties and catastrophe modeling techniques. Given the magnitude and recent occurrence of the 2011 Large Losses, delays in receiving claims data, the contingent nature of business interruption and other exposures, potential uncertainties relating to reinsurance recoveries and other uncertainties inherent in loss estimation, meaningful uncertainty remains regarding losses from the 2011 Large Losses. In addition, a significant portion of the net claims and claim expenses associated with the 2011 New Zealand and Tohoku earthquakes are concentrated with a few large clients and therefore the loss estimates for these events may vary significantly based on the claims experience of those clients. Accordingly, our actual net negative impact from the 2011 Large Losses will vary from these preliminary estimates, perhaps materially so. Changes in these estimates will be recorded in the period in which they occur.

See the financial data below for additional information detailing the net negative impact of the 2011 Large Losses, on our consolidated financial statements for the first six months of 2011.

	2011 Large Losses
Six months ended June 30, 2011	2011 New Zealand Earthquake			Tohoku Earthquake			Australian Floods			U.S. Tornadoes			Total
(in thousands, except percentages)
Net claims and claim expenses incurred	$	(209,954	)	$	(399,989	)	$	(46,118	)	$	(121,655	)	$	(777,716	)
Assumed reinstatement premiums earned	23,375			82,087			8,672			22,499			136,633
Ceded reinstatement premiums earned	(2,140		)	(9,889		)	—			—			(12,029		)
Lost profit commissions	(8,452		)	1,337			(1,550		)	(708		)	(9,373		)
Net negative impact on underwriting result	(197,171		)	(326,454		)	(38,996		)	(99,864		)	(662,485		)
Equity in net claims and claim expenses of Top Layer Re	(23,758		)	—			—			—			(23,758		)
Recoveries from ceded reinsurance contracts accounted for at fair value	—			44,903			—			—			44,903
Redeemable noncontrolling interest - DaVinciRe	42,183			66,120			8,148			29,054			145,505
Net negative impact	$	(178,746	)	$	(215,431	)	$	(30,848	)	$	(70,810	)	$	(495,835	)
Percentage point impact on consolidated combined ratio	32.6			60.6			6.3			16.6			143.2
Net negative impact on Reinsurance segment underwriting result	$	(191,217	)	$	(313,912	)	$	(38,996	)	$	(96,944	)	(641,069		)
Net negative impact on Lloyd's segment underwriting result	(5,954		)	(12,542		)	—			(2,920		)	(21,416		)
Net negative impact on underwriting result	$	(197,171	)	$	(326,454	)	$	(38,996	)	$	(99,864	)	$	(662,485	)

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Underwriting Results by Segment

Reinsurance Segment

Below is a summary of the underwriting results and ratios for our Reinsurance segment followed by an analysis of our catastrophe unit and specialty reinsurance unit underwriting results and ratios:

Reinsurance segment overview
Six months ended June 30,	2012			2011			Change
(in thousands, except percentages)
Gross premiums written	$	1,226,801		$	1,181,086		$	45,715
Net premiums written	$	838,007		$	819,422		$	18,585
Net premiums earned	$	468,114		$	488,890		$	(20,776	)
Net claims and claim expenses incurred	43,812			738,623			(694,811		)
Acquisition expenses	39,484			40,223			(739		)
Operational expenses	62,390			65,264			(2,874		)
Underwriting income (loss)	$	322,428		$	(355,220	)	$	677,648
Net claims and claim expenses incurred – current accident year	$	131,775		$	829,760		$	(697,985	)
Net claims and claim expenses incurred – prior accident years	(87,963		)	(91,137		)	3,174
Net claims and claim expenses incurred – total	$	43,812		$	738,623		$	(694,811	)
Net claims and claim expense ratio – current accident year	28.2		%	169.7		%	(141.5		)%
Net claims and claim expense ratio – prior accident years	(18.8		)%	(18.6		)%	(0.2		)%
Net claims and claim expense ratio – calendar year	9.4		%	151.1		%	(141.7		)%
Underwriting expense ratio	21.7		%	21.6		%	0.1		%
Combined ratio	31.1		%	172.7		%	(141.6		)%

Reinsurance Segment Gross Premiums Written – Gross premiums written in our Reinsurance segment increased by $45.7 million, or 3.9%, to $1,226.8 million in the first six months of 2012, compared to $1,181.1 million in the first six months of 2011. Excluding the impact of $30.7 million of negative reinstatement premiums adjustments in the first six months of 2012 and $135.8 million of reinstatement premiums written in the first six months of 2011, each as discussed above, gross premiums written increased $212.3 million or 20.3%, primarily due to the catastrophe unit experiencing improved market conditions on a risk-adjusted basis within its core lines of business during the January 2012 renewals and writing more business during the June 2012 renewals and due to the inception of several new contracts during the first six months of 2012 which met our risk-adjusted return thresholds within our specialty unit.

Our Reinsurance segment premiums are prone to significant volatility due to the timing of contract inception and also due to the business being characterized by a relatively small number of relatively large transactions. In addition, our property catastrophe reinsurance gross premiums written continue to be characterized by a large percentage of U.S. and Caribbean premium as we have found business derived from exposures in Europe and the rest of the world to be, in general, less attractive on a risk-adjusted basis during recent periods. A significant amount of our U.S. and Caribbean premium provides coverage against windstorms, mainly U.S. Atlantic hurricanes, as well as earthquakes and other natural and man-made catastrophes.

Reinsurance Segment Underwriting Results – Our Reinsurance segment generated underwriting income of $322.4 million in the first six months of 2012, compared to incurring an underwriting loss of $355.2 million in the first six months of 2011, an improvement of $677.6 million. In the first six months of 2012, our Reinsurance segment generated a net claims and claim expense ratio of 9.4%, an underwriting expense ratio of 21.7% and a combined ratio of 31.1%, compared to 151.1%, 21.6% and 172.7%, respectively, in the first six months of 2011.

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The $677.6 million improvement in the Reinsurance segment's underwriting result and 141.6 percentage point decrease in the combined ratio was principally due to the relatively low level of insured catastrophes in the first six months of 2012, compared to the first six months of 2011. The 2011 Large Losses had a net negative impact on the Reinsurance segment underwriting result of $641.1 million and added 151.0 percentage points to the Reinsurance segment combined ratio, after considering the impact of net reinstatement premiums earned and net lost profit commission related to these events, as detailed in the table below.

	2011 Large Losses
Six months ended June 30, 2011	2011 New Zealand Earthquake			Tohoku Earthquake			Australian Floods			U.S. Tornadoes			Total
(in thousands, except percentages)
Net claims and claim expenses incurred	$	(204,000	)	$	(386,985	)	$	(46,118	)	$	(118,655	)	$	(755,758	)
Assumed reinstatement premiums earned	23,375			81,327			8,672			22,419			135,793
Ceded reinstatement premiums earned	(2,140		)	(9,591		)	—			—			(11,731		)
Lost profit commissions	(8,452		)	1,337			(1,550		)	(708		)	(9,373		)
Net negative impact on Reinsurance segment underwriting result	$	(191,217	)	$	(313,912	)	$	(38,996	)	$	(96,944	)	$	(641,069	)
Percentage point impact on Reinsurance segment combined ratio	37.6			62.8			6.8			17.3			151.0
Net negative impact on catastrophe unit underwriting result	$	(178,717	)	$	(293,912	)	$	(32,996	)	$	(96,944	)	$	(602,569	)
Net negative impact on specialty unit underwriting result	(12,500		)	(20,000		)	(6,000		)	—			(38,500		)
Net negative impact on Reinsurance segment underwriting result	$	(191,217	)	$	(313,912	)	$	(38,996	)	$	(96,944	)	$	(641,069	)

Our Reinsurance segment prior year reserves experienced $88.0 million and $91.1 million of net favorable development in the first six months of 2012 and 2011, respectively. The favorable development on prior year reserves in the first six months of 2012 included $68.1 million related to our catastrophe reinsurance unit and $19.8 million related to our specialty reinsurance unit, as discussed below in the underwriting results of the catastrophe and specialty units, respectively.

We have entered into joint ventures and specialized quota share cessions of our book of business. In accordance with the joint venture and quota share agreements, we are entitled to certain profit commissions and fee income. We record these profit commissions and fees as a reduction in acquisition and operating expenses and, accordingly, these fees have reduced our underwriting expense ratios. These fees totaled $36.9 million and $29.1 million in the first six months of 2012 and 2011, respectively, and resulted in a corresponding decrease to the Reinsurance segment underwriting expense ratio of 7.9% and 6.0%, respectively. In addition, we are entitled to certain fee income and profit commissions from DaVinci. Because the results of DaVinci, and its parent DaVinciRe, are consolidated in our results of operations, these fees and profit commissions are eliminated in our consolidated financial statements and are principally reflected in redeemable noncontrolling interest – DaVinciRe. The net impact of all fees and profit commissions related to these joint ventures and specialized quota share cessions within our Reinsurance segment was $66.5 million and $16.7 million in the first six months of 2012 and 2011, respectively.

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Catastrophe

Below is a summary of the underwriting results and ratios for our catastrophe unit:

Catastrophe unit overview
Six months ended June 30,	2012			2011			Change
(in thousands, except percentages)
Property catastrophe gross premiums written
Renaissance	$	675,521		$	678,571		$	(3,050	)
DaVinci	413,457			403,353			10,104
Total property catastrophe gross premiums written	$	1,088,978		$	1,081,924		$	7,054
Net premiums written	$	706,749		$	725,676		$	(18,927	)
Net premiums earned	$	385,692		$	422,798		$	(37,106	)
Net claims and claim expenses incurred	16,262			713,892			(697,630		)
Acquisition expenses	29,164			29,509			(345		)
Operational expenses	48,573			50,461			(1,888		)
Underwriting income (loss)	$	291,693		$	(371,064	)	$	662,757
Net claims and claim expenses incurred – current accident year	$	84,404		$	745,388		$	(660,984	)
Net claims and claim expenses incurred – prior accident years	(68,142		)	(31,496		)	(36,646		)
Net claims and claim expenses incurred – total	$	16,262		$	713,892		$	(697,630	)
Net claims and claim expense ratio – current accident year	21.9		%	176.3		%	(154.4		)%
Net claims and claim expense ratio – prior accident years	(17.7		)%	(7.5		)%	(10.2		)%
Net claims and claim expense ratio – calendar year	4.2		%	168.8		%	(164.6		)%
Underwriting expense ratio	20.2		%	19.0		%	1.2		%
Combined ratio	24.4		%	187.8		%	(163.4		)%

Catastrophe Reinsurance Gross Premiums Written – In the first six months of 2012, our catastrophe reinsurance gross premiums written increased by $7.1 million, or 0.7%, to $1,089.0 million, compared to $1,081.9 million in the first six months of 2011. Excluding the impact of $30.7 million of negative reinstatement premiums adjustments in the first six months of 2012 and $135.8 million of reinstatement premiums written in the first six months of 2011, each as discussed above, our catastrophe unit gross premiums written increased $173.6 million, or 18.3%, in the first six months of 2012, primarily due to improved market conditions on a risk-adjusted basis within our core lines of business during the January 2012 renewals and writing more business during the June 2012 renewals, inclusive of $37.4 million and $37.7 million of gross premiums written on behalf of our most recent fully-collateralized joint ventures, Upsilon Re and Tim Re III.

Our property catastrophe reinsurance gross premiums written continue to be characterized by a large percentage of U.S. and Caribbean premium, as we have found business derived from exposures in Europe or the rest of the world to be, in general, less attractive on a risk-adjusted basis during recent periods. A significant amount of our U.S. and Caribbean premium provides coverage against windstorms, mainly U.S. Atlantic hurricanes, as well as earthquakes and other natural and man-made catastrophes.

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Catastrophe Reinsurance Underwriting Results – Our catastrophe unit generated underwriting income of $291.7 million in the first six months of 2012, compared to incurring an underwriting loss of $371.1 million in the first six months of 2011, an improvement of $662.8 million. The improvement in underwriting income was principally due to a $661.0 million decrease in current accident year claims and claim expenses as a result of the relatively low level of insured catastrophe losses during the first six months of 2012, compared to the first six months of 2011 which was negatively impacted by net claims and claim expenses related to the 2011 Large Losses of $717.3 million. Partially offsetting the decrease in current accident year net claims and claim expenses was a $37.1 million decrease in net premiums earned, which was driven by the absence of net earned reinstatement premiums in the first six months of 2012, compared to $124.1 million of net earned reinstatement premiums in the first six months of 2011.

In the first six months of 2012, our catastrophe unit generated a net claims and claim expense ratio of 4.2%, an underwriting expense ratio of 20.2% and a combined ratio of 24.4%, compared to 168.8%, 19.0% and 187.8%, respectively, in the first six months of 2011. Current accident year net claims and claim expenses of $84.4 million includes $20.5 million related to the June 29, 2012 derecho (PCS 83) which impacted the Midwest to Mid-Atlantic coast of the U.S., with the remainder due primarily to a number of other relatively small events throughout the U.S., compared to the first six months of 2011 which was negatively impacted by the 2011 Large Losses which had a net negative impact on the catastrophe unit underwriting result of $602.6 million and added 165.3 percentage points to the catastrophe unit combined ratio, after considering the impact of net reinstatement premiums earned and net lost profit commission related to these events, as detailed in the table below.

	2011 Large Losses
Six months ended June 30, 2011	2011 New Zealand Earthquake			Tohoku Earthquake			Australian Floods			U.S. Tornadoes			Total
(in thousands, except percentages)
Net claims and claim expenses incurred	$	(191,500	)	$	(366,985	)	$	(40,118	)	$	(118,655	)	$	(717,258	)
Assumed reinstatement premiums earned	23,375			81,327			8,672			22,419			135,793
Ceded reinstatement premiums earned	(2,140		)	(9,591		)	—			—			(11,731		)
Lost profit commissions	(8,452		)	1,337			(1,550		)	(708		)	(9,373		)
Net negative impact on catastrophe unit underwriting result	$	(178,717	)	$	(293,912	)	$	(32,996	)	$	(96,944	)	$	(602,569	)
Percentage point impact on catastrophe unit combined ratio	39.9			65.8			6.2			19.3			165.3

During the first six months of 2012, we experienced $68.1 million of favorable development on prior year reserves, compared to $31.5 million of favorable development on prior years reserves in the first six months of 2011. The favorable development on prior year reserves in the first six months of 2012 within the catastrophe reinsurance unit of $68.1 million was primarily due to $17.3 million related to the 2007 U.K floods, $12.0 million related to the Tohoku earthquake, $5.0 million related to the 2011 Danish floods, $4.6 million related to hurricane Irene, and $5.9 million related to actuarial assumption changes, with the remainder due to better than expected claims emergence associated with a number of other catastrophes, partially offset by adverse development on the 2011 New Zealand earthquake of $5.9 million. The favorable development of $31.5 million in the first six months of 2012 was primarily related to decreases in estimated ultimate losses on certain specific events, including $4.0 million related to tropical cyclone Tasha and $7.7 million related to the 2005 hurricanes, with the remainder due to better than expected claims emergence associated with a number of other catastrophes.

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Specialty

Below is a summary of the underwriting results and ratios for our specialty reinsurance unit:

Specialty unit overview
Six months ended June 30,	2012			2011			Change
(in thousands, except percentages)
Specialty gross premiums written
Renaissance	$	135,323		$	97,461		$	37,862
DaVinci	2,500			1,701			799
Total specialty gross premiums written	$	137,823		$	99,162		$	38,661
Net premiums written	$	131,258		$	93,746		$	37,512
Net premiums earned	$	82,422		$	66,092		$	16,330
Net claims and claim expenses incurred	27,550			24,731			2,819
Acquisition expenses	10,320			10,714			(394		)
Operational expenses	13,817			14,803			(986		)
Underwriting income	$	30,735		$	15,844		$	14,891
Net claims and claim expenses incurred – current accident year	$	47,371		$	84,372		$	(37,001	)
Net claims and claim expenses incurred – prior accident years	(19,821		)	(59,641		)	39,820
Net claims and claim expenses incurred – total	$	27,550		$	24,731		$	2,819
Net claims and claim expense ratio – current accident year	57.5		%	127.7		%	(70.2		)%
Net claims and claim expense ratio – prior accident years	(24.1		)%	(90.3		)%	66.2		%
Net claims and claim expense ratio – calendar year	33.4		%	37.4		%	(4.0		)%
Underwriting expense ratio	29.3		%	38.6		%	(9.3		)%
Combined ratio	62.7		%	76.0		%	(13.3		)%

Specialty Reinsurance Gross Premiums Written – In the first six months of 2012, our specialty reinsurance gross premiums written increased $38.7 million, or 39.0%, to $137.8 million, compared to $99.2 million in the first six months of 2011, primarily due to the inception of several new contracts during the first six months of 2012 which met our risk-adjusted return thresholds.

Specialty Reinsurance Underwriting Results – Our specialty unit generated $30.7 million of underwriting income in the first six months of 2012, compared to $15.8 million in the first six months of 2011, an increase of $14.9 million, principally due to a $16.3 million increase in net premiums earned, partially offset by a $2.8 million increase in net claims and claim expenses. The $2.8 million increase in net claims and claim expenses is primarily driven by a $39.8 million decrease in favorable development on prior accident year net claims and claim expenses, as discussed below, and partially offset by a $37.0 million decrease in current accident year net claims and claim expenses, as discussed below.

In the first six months of 2012, our specialty unit generated a net claims and claim expense ratio of 33.4%, an underwriting expense ratio of 29.3% and a combined ratio of 62.7%, compared to 37.4%, 38.6% and 76.0%, respectively, in the first six months of 2011. The 9.3 percentage point decrease in the underwriting expense ratio was principally driven by a combination of an increase in net premiums earned as a result of the increase in gross premiums written, as noted above, and a $0.4 million and $1.0 million decrease in acquisition and operational expenses, respectively, during the first six months of 2012, compared to the first six months of 2011.

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Current accident year net claims and claim expenses of $47.4 million included $5.0 million related to the grounding of the Costa Concordia cruise ship, with the remainder primarily due to attritional losses, compared with the the first six months of 2011 which experienced estimated losses associated with the Tohoku earthquake, 2011 New Zealand earthquake and the Australian flooding of $20.0 million, $12.5 million and $6.0 million, respectively.

The favorable development of $19.8 million within our specialty reinsurance unit in the first six months of 2012 included $14.4 million associated with actuarial assumption changes, principally in our casualty and medical malpractice lines of business, and primarily as a result of revised initial expected claims ratios and claim development factors due to actual experience coming in better than expected, $2.0 million favorable development on the 2005 hurricanes and $3.4 million of reported losses developing more favorably than expected during the first six months of 2012 on prior accident years events. The favorable development on prior accident years in the first six months of 2011 of $59.6 million was principally the result of $32.8 million due to actual reported loss activity coming in better than expected and $26.8 million due to changes in our actuarial assumptions.

Lloyd’s Segment

Below is a summary of the underwriting results and ratios for our Lloyd’s segment:

Lloyd’s segment overview
Six months ended June 30,	2012			2011			Change
(in thousands, except percentages)
Lloyd’s gross premiums written
Specialty	$	72,254		$	46,781		$	25,473
Catastrophe	32,860			23,965			8,895
Total Lloyd’s gross premiums written	$	105,114		$	70,746		$	34,368
Net premiums written	$	82,447		$	60,821		$	21,626
Net premiums earned	$	55,191		$	32,907		$	22,284
Net claims and claim expenses incurred	23,961			39,142			(15,181		)
Acquisition expenses	10,178			5,766			4,412
Operational expenses	20,863			17,607			3,256
Underwriting income (loss)	$	189		$	(29,608	)	$	29,797
Net claims and claim expenses incurred – current accident year	$	34,646		$	38,938		$	(4,292	)
Net claims and claim expenses incurred – prior accident years	(10,685		)	204			(10,889		)
Net claims and claim expenses incurred – total	$	23,961		$	39,142		$	(15,181	)
Net claims and claim expense ratio – current accident year	62.8		%	118.3		%	(55.5		)%
Net claims and claim expense ratio – prior accident years	(19.4		)%	0.6		%	(20.0		)%
Net claims and claim expense ratio – calendar year	43.4		%	118.9		%	(75.5		)%
Underwriting expense ratio	56.3		%	71.1		%	(14.8		)%
Combined ratio	99.7		%	190.0		%	(90.3		)%

Lloyd’s Gross Premiums Written – Gross premiums written in our Lloyd's segment increased by $34.4 million, or 48.6% to $105.1 million in the first six months of 2012, compared to $70.7 million in the first six months of 2011, primarily due to Syndicate 1458 growing its book of business across the majority of its lines of business and the impact of rate increases, most notably in its casualty lines of business.

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Lloyd’s Underwriting Results – Our Lloyd's segment generated underwriting income of $0.2 million and a combined ratio of 99.7% in the first six months of 2012, compared to an underwriting loss of $29.6 million and a combined ratio of 190.0% in the first six months of 2011. Our Lloyd's segment experienced current accident year net claims and claim expenses of $34.6 million during the first six months of 2012, compared to $38.9 million in the first six months of 2011 which was negatively impacted by the 2011 Large Losses, resulting in $21.4 million of underwriting losses from the 2011 Large Losses and increasing the combined ratio by 64.5 percentage points, after considering the impact of net reinstatement premiums earned and lost profit commissions related to these events, as detailed in the table below. Operational expenses increased $3.3 million, to $20.9 million in the first six months of 2012, compared to the first six months of 2011, and principally include compensation and related operating expenses. The decrease in the underwriting expense ratio to 56.3% in the first six months of 2012, from 71.1% in the first six months of 2011, was primarily driven by the increase in net premiums earned.

	2011 Large Losses
Six months ended June 30, 2011	2011 New Zealand Earthquake			Tohoku Earthquake			U.S. Tornadoes			Total
(in thousands, except percentages)
Net claims and claim expenses incurred	$	(5,954	)	$	(13,004	)	$	(3,000	)	$	(21,958	)
Assumed reinstatement premiums earned	—			760			80			840
Ceded reinstatement premiums earned	—			(298		)	—			(298		)
Net negative impact on Lloyd's segment underwriting result	$	(5,954	)	$	(12,542	)	$	(2,920	)	$	(21,416	)
Percentage point impact on Lloyd's segment combined ratio	18.1			36.0			8.7			64.5

Insurance segment

Below is a summary of the underwriting results and ratios for our Insurance segment:

Insurance segment overview
Six months ended June 30,	2012			2011			Change
(in thousands, except percentages)
Gross premiums written	$	—		$	313		$	(313	)
Net premiums written	$	(249	)	$	327		$	(576	)
Net premiums earned	$	(224	)	$	919		$	(1,143	)
Net claims and claim expenses incurred	(2,670		)	2,033			(4,703		)
Acquisition expenses	57			229			(172		)
Operational expenses	537			1,258			(721		)
Underwriting income (loss)	$	1,852		$	(2,601	)	$	4,453
Net claims and claim expenses incurred – current accident year	$	—		$	(69	)	$	69
Net claims and claim expenses incurred – prior accident years	(2,670		)	2,102			(4,772		)
Net claims and claim expenses incurred – total	$	(2,670	)	$	2,033		$	(4,703	)
Net claims and claim expense ratio – current accident year	—		%	(7.5		)%	7.5		%
Net claims and claim expense ratio – prior accident years	1,192.0		%	228.7		%	963.3		%
Net claims and claim expense ratio – calendar year	1,192.0		%	221.2		%	970.8		%
Underwriting expense ratio	(265.2		)%	161.8		%	(427.0		)%
Combined ratio	926.8		%	383.0		%	543.8		%

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Insurance Segment Gross Premiums Written – Insurance policies and quota-share reinsurance contracts written in connection with our Bermuda-based insurance operations not sold to QBE are included in continuing operations and are reported in our Insurance segment. Although we are not actively underwriting new business in the Insurance segment at this time, we may from time to time evaluate potential new business opportunities for our Insurance segment. Gross premiums written in our Insurance segment during the first six months of 2011 were primarily attributable to premium adjustments on prior underwriting year contracts. Gross premiums written in the Insurance segment can fluctuate significantly between quarters and between years based on several factors, including, without limitation, the timing of the inception or cessation of quota share reinsurance contracts, including whether or not the Company has portfolio transfers in, or portfolio transfers out, of quota share reinsurance contracts of in-force books of business.

Insurance Segment Underwriting Results – Our Insurance segment generated underwriting income of $1.9 million in the first six months of 2012, primarily due to favorable development on prior accident years of $2.7 million as a result of reductions in reported losses on certain attritional loss contracts, compared to incurring an underwriting loss of $2.6 million in the first six months of 2011.

Net Investment Income

Six months ended June 30,	2012			2011			Change
(in thousands)
Fixed maturity investments	$	48,769		$	52,339		$	(3,570	)
Short term investments	734			1,028			(294		)
Equity investments trading	351			126			225
Other investments
Hedge funds and private equity investments	18,060			31,737			(13,677		)
Other	19,145			13,665			5,480
Cash and cash equivalents	80			86			(6		)
	87,139			98,981			(11,842		)
Investment expenses	(5,425		)	(5,372		)	(53		)
Net investment income	$	81,714		$	93,609		$	(11,895	)

Net investment income was $81.7 million in the first six months of 2012, compared to $93.6 million in the first six months of 2011. The $11.9 million decrease in net investment income was principally driven by a $13.7 million decrease in the returns primarily from our private equity investments due to lower returns in the first six months of 2012, and a $3.6 million decrease from our fixed maturity portfolio due to the continued low interest rate environment, partially offset by a $5.5 million increase in the returns on the remaining investments included in other investments. Historically low interest rates as compared to recent years have lowered the yields at which we invest our assets relative to historical levels. We expect these developments, combined with the current composition of our investment portfolio and other factors, to continue to put downward pressure on our net investment income for the near term. The hedge fund, private equity and other investment portfolios are accounted for at fair value with the change in fair value recorded in net investment income which included net unrealized gains of $21.9 million in the first six months of 2012, compared to $33.7 million in the first six months of 2011.

Commencing in the first quarter of 2011, we established a portfolio of certain publicly traded equities which are reflected in our consolidated balance sheet as equity investments trading. This portfolio of equity investments is carried at fair value with dividend income included in net investment income, and realized and unrealized gains included in net realized and unrealized gains on investments, in our consolidated statements of operations. We may add to this portfolio during subsequent periods, although we do not expect it to represent a material portion of our invested assets or our financial results for the reasonably foreseeable period.

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Net Realized and Unrealized Gains on Investments and Net Other-Than-Temporary Impairments

Six months ended June 30,	2012			2011			Change
(in thousands)
Gross realized gains	$	55,744		$	25,992		$	29,752
Gross realized losses	(10,244		)	(16,773		)	6,529
Net realized gains on fixed maturity investments	45,500			9,219			36,281
Net unrealized gains on fixed maturity investments trading	26,795			20,970			5,825
Net unrealized gains (losses) on equity investments trading	4,821			(424		)	5,245
Net realized and unrealized gains on investments	$	77,116		$	29,765		$	47,351
Total other-than-temporary impairments	(395		)	—			(395		)
Portion recognized in other comprehensive income, before taxes	52			—			52
Net other-than-temporary impairments	$	(343	)	$	—		$	(343	)

Our investment portfolio is structured to preserve capital and provide us with a high level of liquidity. A large majority of our investments are invested in the fixed income markets and, therefore, our realized and unrealized holding gains and losses on investments are highly correlated to fluctuations in interest rates. Therefore, as interest rates decline, we will tend to have realized and unrealized gains from our investment portfolio, and as interest rates rise, we will tend to have realized and unrealized losses from our investment portfolio. We experienced net realized and unrealized gains on fixed maturity investments included in our consolidated statements of operations of $72.3 million during the first six months of 2012. However, we cannot assure you that this trend will continue as historically low interest rates (as compared to recent years) may increase in the near term resulting in a rising interest rate environment which would tend to diminish our ability to generate net realized gains on our portfolio of fixed maturity investments.

Net realized and unrealized gains on investments were $77.1 million in the first six months of 2012, compared to $29.8 million in the first six months of 2011, an improvement of $47.4 million. In addition to increased turnover in our fixed maturity investments portfolio generating $45.5 million of net realized gains in the the first six months of 2012, unrealized gains on our fixed maturity investments trading of $26.8 million during the the first six months of 2012 increased $5.8 million, compared to $21.0 million of unrealized gains in the first six months of 2011, primarily due to the net appreciation of our fixed maturity investment portfolio as a result of tightening credit spreads during the first six months of 2012. Included in net realized and unrealized gains on investments in the first six months of 2012 is $4.8 million of net unrealized gains on equity investments trading due to increases in the share prices of our equity positions.

Equity in Earnings (Losses) of Other Ventures

Six months ended June 30,	2012			2011			Change
(in thousands)
Top Layer Re	$	9,850		$	(18,542	)	$	28,392
Tower Hill Companies	2,861			767			2,094
Other	(395		)	(850		)	455
Total equity in earnings (losses) of other ventures	$	12,316		$	(18,625	)	$	30,941

Equity in earnings (losses) of other ventures primarily represents our pro-rata share of the net income (loss) from our investments in Top Layer Re and the Tower Hill Companies and was $12.3 million in the first six months of 2012, compared to losses of $18.6 million in the first six months of 2011. The $30.9 million improvement in equity in earnings of other ventures was primarily due to our equity in earnings of Top Layer Re of $9.9 million during the first six months of 2012, as a result of Top Layer Re experiencing no net claims and claims expenses during the first six months of 2012, compared to the first six months of 2011, which was negatively impacted by net claims and claim expenses related to the 2011 New Zealand earthquake. The equity in earnings from the Tower Hill Companies is recorded one quarter in arrears.

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Other (Loss) Income

Six months ended June 30,	2012			2011			Change
(in thousands)
Assumed and ceded reinsurance contracts accounted for as derivatives and deposits	$	2,303		$	42,499		$	(40,196	)
Weather and energy risk management operations	(29,588		)	(484		)	(29,104		)
Mark-to-market on Platinum warrant	—			2,975			(2,975		)
Other	(520		)	(12		)	(508		)
Total other (loss) income	$	(27,805	)	$	44,978		$	(72,783	)

In the first six months of 2012 we incurred an other loss of $27.8 million, compared to other income of $45.0 million in the first six months of 2011. The $72.8 million deterioration in other income is primarily due to:

• a $40.2 million decrease in other income generated by our assumed and ceded reinsurance contracts accounted for at fair value, principally as a result of $44.9 million of net recoverables from the Tohoku earthquake during the first six months of 2011 not reoccurring in the first six months of 2012;

• losses from our weather and energy risk management operations of $29.6 million due to the unusually warm weather experienced in parts of the United Kingdom and parts of the United States during the first quarter of 2012, compared to losses from these operations of $0.5 million in the first six months of 2011; and

• the absence in the first six months of 2012 of a mark-to-market adjustment on the Platinum warrant due to its sale during the first quarter of 2011.

Certain contracts we enter into in our weather and energy risk operations are informed in part on proprietary weather forecasts provided by our Weather Predict subsidiary. The weather and energy risk operations in which we engage are both seasonal and volatile, and there is no assurance that our performance to date will be indicative of future periods.  We continue to allocate capital to our weather and energy risk management operations. This operation continually seeks new markets and relationships for its weather and energy risk products, including leveraging strategic affiliations and ceding risk where appropriate.  Although there can be no assurances, it is possible that our results from these activities will increase on an absolute or relative basis over time.  We have expanded our weather and energy risk management operations in the last several years to include weather contingent energy products and by increasing the size and volume of transactions with respect to our previously existing weather and energy risk management operations.  The weather and energy risk management operations results include net realized and unrealized gains and losses on agreements with end users and net realized and unrealized gains and losses on hedging and trading activities.  We are currently in the process of enhancing our weather and energy risk management infrastructure and operations. These activities present certain operational as well as financial risks, which we seek to mitigate, although there can be no assurance that we will be able to successfully mitigate such risks.

Corporate Expenses

Six months ended June 30,	2012		2011		Change
(in thousands)
Total corporate expenses	$	8,878	$	6,075	$	2,803

Corporate expenses include certain executive, director, legal and consulting expenses, costs for research and development, impairment charges related to goodwill and other intangible assets, and other miscellaneous costs, including those associated with operating as a publicly traded company. Corporate expenses were $8.9 million in the first six months of 2012, compared to $6.1 million in the first six months of 2011, with the increase primarily due to the absence of a corporate insurance recovery which was recorded in the first quarter of 2011 and did not reoccur in the first six months of 2012.

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Net (Income) Loss Attributable to Noncontrolling Interests

Six months ended June 30,	2012			2011		Change
(in thousands)
Net (income) loss attributable to noncontrolling interests	$	(87,265	)	$	63,589	$	(150,854	)

Our net income attributable to the noncontrolling interests was $87.3 million in the first six months of 2012, compared to a net loss attributable to noncontrolling interests of $63.6 million in the first six months of 2011. The $150.9 million change is primarily due to an increase in the profitability of DaVinciRe as a result of the relatively low level of insured catastrophes during the first six months of 2012, compared to the first six months of 2011 which was negatively impacted by the 2011 Large Losses, combined with a decrease in our ownership percentage in DaVinciRe from 42.8% at June 30, 2011 to 31.5% at June 30, 2012. We expect our ownership in DaVinciRe to fluctuate over time.

Income (Loss) from Discontinued Operations

Six months ended June 30,	2012		2011			Change
(in thousands)
Income (loss) from discontinued operations	$	1,220	$	(11,620	)	$	12,840

Income (loss) from discontinued operations includes the financial results of substantially all of our U.S.-based insurance operations sold to QBE. Income from discontinued operations of $1.2 million in the first six months of 2012 is primarily due to recognizing a gain of $1.0 million on the settlement of the Reserve Collar, as noted below, compared to a loss from discontinued operations of $11.6 million in the first six months of 2011 which was primarily due to the recognition of a $10.0 million expense related to the contractually agreed obligation to pay, or otherwise reimburse, QBE for amounts potentially up to $10.0 million in respect of net adverse development on prior accident years net claims and claim expenses. Effective May 23, 2012, the Company and QBE reached an agreement in respect of the Reserve Collar, and the Company paid QBE the sum of $9.0 million on June 1, 2012, representing full and final settlement of the Reserve Collar.

LIQUIDITY AND CAPITAL RESOURCES

Financial Condition

RenaissanceRe is a holding company, and we therefore rely on dividends from our subsidiaries and investment income to make principal and interest payments on our debt and to make dividend payments to our preference and common shareholders.

The payment of dividends by our subsidiaries is, under certain circumstances, limited under statutory regulations and insurance law, which require our insurance subsidiaries to maintain certain measures of solvency and liquidity. In addition, Bermuda regulations require approval from the Bermuda Monetary Authority ("BMA") for any reduction of capital in excess of 15% of statutory capital, as defined in the Insurance Act. The Insurance Act also requires these Bermuda insurance subsidiaries of the Company to maintain certain measures of solvency and liquidity. At June 30, 2012, the statutory capital and surplus of our Bermuda insurance subsidiaries was $3.0 billion (December 31, 2011 - $2.7 billion) and the minimum amount required to be maintained under Bermuda law, the Minimum Solvency Margin, was $562.8 million (December 31, 2011 - $552.9 million). During the first six months of 2012, Renaissance Reinsurance, DaVinciRe and the operating subsidiaries of RenRe Insurance Holdings Ltd. returned capital to our holding company, which included dividends declared and return of capital, net of capital contributions received of $114.4 million, $123.5 million and $Nil, respectively (2011 – $Nil, $6.5 million and $547.3 million, respectively).

As discussed in the “Capital Resources” section below, Renaissance Reinsurance is obligated to make a mandatory capital contribution of up to $50.0 million in the event that a loss reduces Top Layer Re's capital below a specified level.

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Under the Insurance Act, Renaissance Reinsurance and DaVinci are classified as Class 4 insurers, and therefore must maintain capital at a level equal to its Enhanced Capital Requirement ("ECR") which is established by reference to the Bermuda Solvency and Capital Requirement ("BSCR") model. The BSCR is a standard mathematical model designed to give the BMA more advanced methods for determining an insurer’s capital adequacy. Underlying the BSCR is the belief that all insurers should operate on an ongoing basis with a view to maintaining their capital at a prudent level in excess of the minimum solvency margin otherwise prescribed under the Insurance Act. Alternatively, under the Insurance Act, insurers may, subject to the terms of the Insurance Act and to the BMA’s oversight, elect to utilize an approved internal capital model to determine regulatory capital. In either case, the ECR shall at all times equal or exceed the Class 4 insurer’s Minimum Solvency Margin and may be adjusted in circumstances where the BMA concludes that the insurer’s risk profile deviates significantly from the assumptions underlying its ECR or the insurer’s assessment of its risk management policies and practices used to calculate the ECR applicable to it. While not specifically referred to in the Insurance Act, the BMA has also established a Target Capital Level ("TCL") for each Class 4 insurer equal to 120% of its ECR. While a Class 4 insurer is not currently required to maintain its statutory capital and surplus at this level, the TCL serves as an early warning tool for the BMA and failure to maintain statutory capital at least equal to the TCL will likely result in increased BMA regulatory oversight. The 2011 BSCR for Renaissance Reinsurance and DaVinci was filed with the BMA in advance of the April 30, 2012 deadline, and both companies exceeded the target level of required capital.

RenaissanceRe Corporate Capital (UK) Limited and Syndicate 1458 are subject to oversight by the Council of Lloyd’s. RenaissanceRe Syndicate Management Limited is subject to regulation by the Financial Services Authority ("FSA") under the Financial Services and Markets Act 2000. Underwriting capacity of a member of Lloyd’s must be supported by providing a deposit in the form of cash, securities or letters of credit, which are referred to as Funds at Lloyd’s, in an amount determined by Lloyd’s in relation to the member’s underwriting capacity. This amount is determined by Lloyd’s through application of a risk-based capital formula. At June 30, 2012, the Company maintained $127.5 million and £26.5 million as a Funds at Lloyd’s facility (December 31, 2011 - $118.5 million and £24.5 million). In addition, the FSA requires Lloyd’s syndicates to satisfy an annual solvency test and to maintain solvency on a continuous basis, which Syndicate 1458 was in compliance with at December 31, 2011.

In the aggregate, our operating subsidiaries have historically produced sufficient cash flows to meet their expected claims payments and operational expenses and to provide dividend payments to us. Our subsidiaries also maintain a concentration of investments in high quality liquid securities, which management believes will provide additional liquidity for extraordinary claims payments should the need arise. See “Capital Resources” section below.

Cash Flows and Liquidity

Six months ended June 30,	2012			2011
(in thousands)
Net cash provided by operating activities	$	303,777		$	30,996
Net cash (used in) provided by investing activities	(280,550		)	401,393
Net cash provided by (used in) financing activities	25,580			(475,721		)
Effect of exchange rate changes on foreign currency cash	(1,559		)	3,331
Net increase (decrease) in cash and cash equivalents	47,248			(40,001		)
Cash and cash equivalents, beginning of period	216,984			277,738
Cash and cash equivalents, end of period	$	264,232		$	237,737

During the first six months of 2012, our cash and cash equivalents increased $47.2 million, to $264.2 million at June 30, 2012, compared to $217.0 million at December 31, 2011.

Cash flows provided by operating activities. Cash flows provided by operating activities during the first six months of 2012 were $303.8 million, compared to $31.0 million in the first six months of 2011. Cash flows provided by operating activities during the first six months of 2012 were primarily the result of certain adjustments to reconcile our net income of $448.5 million to net cash provided by operating activities, including: an increase in unearned premiums of $616.8 million due to the timing of, and growth in, our

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gross premiums written; a reduction in reinsurance recoverable of $205.3 million primarily due to the collection of those balances; and a $139.8 million increase in reinsurance balances payable due to the timing of, and increase in, our premiums ceded, and partially offset by an increase in premiums receivable of $499.7 million due to gross premiums written during the June renewal season, an increase in our prepaid reinsurance premiums of $219.7 million due to the timing of, and increase in, our premiums ceded and a decrease in our reserve for claims and claim expenses of $191.1 million driven by the payment of claims and favorable development on prior accident years net claims and claims expenses during the first six months of 2012. As discussed under “Summary of Results of Operations”, we generated higher underwriting income and higher investment results in the first six months of 2012 compared to the first six months of 2011, which contributed to the increase in cash flows provided by operating activities.

Cash flows used in investing activities. During the first six months of 2012, our cash flows used in investing activities were $280.6 million, principally reflecting our net investment in fixed maturity investments trading of $520.2 million, which was funded primarily by cash provided by our operating activities and net sales of short term investments of $183.6 million.

Cash flows provided by financing activities. Our cash flows provided by financing activities in the first six months of 2012 were $25.6 million, and were principally comprised of net inflows of $160.9 million related to additional third party equity capital raised during the first six months of 2012 in our redeemable noncontrolling interest - DaVinciRe, partially offset by the repurchase of $90.1 million of our common shares, and the payment of $27.7 million and $17.5 million in dividends to our common and preferred shareholders, respectively.

During the first six months of 2011, our cash and cash equivalents decreased $40.0 million, to $237.7 million at June 30, 2011, compared to $277.7 million at December 31, 2010.

Cash flows provided by operating activities. Cash flows provided by operating activities during the first six months of 2011 were $31.0 million, compared to $288.5 million in the first six months of 2010 and were primarily the result of certain adjustments to reconcile our net loss of $269.4 million to net cash provided by operating activities, including: an increase in our reserve for claims and claim expenses of $912.9 million; an increase in unearned premiums of $544.8 million; an increase in reinsurance balances payable of $85.1 million; and partially offset by an increase in premiums receivable and prepaid reinsurance premiums of $611.4 million and $185.0 million, respectively; an increase in deferred acquisition costs of $55.2 million; and net unrealized gains included in other income of $63.1 million principally due to reinsurance contracts accounted for at fair value which experienced net recoverables from the Tohoku earthquake during the first quarter of 2011. As discussed under “Summary of Results of Operations for the six months ended June 30, 2012 compared to the six months ended June 30, 2011”, we incurred underwriting losses and lower investment results, which contributed to the decrease in cash flows provided by operating activities.

Cash flows provided by investing activities. During the first six months of 2011, our cash flows provided by investing activities were $401.4 million, which principally reflected $269.5 million in net proceeds from the sale of substantially all of our U.S.-based insurance operations to QBE and $47.0 million related to the sale of our Platinum warrant during the first quarter of 2011. In addition, during the first six months of 2011, in response to the large catastrophes of the first six months and the desire to have appropriate capital resources available to pay valid claims quickly, we had net cash inflows of $162.4 million resulting from our fixed maturity and short term investments.

Cash flows used in financing activities. Our cash flows used in financing activities in the first six months of 2011 were $475.7 million, principally comprised of the repurchase of $174.8 million of our common shares, the payment of $26.7 million and $17.5 million in dividends to our common and preferred shareholders, respectively, the repurchase of $126.7 million of DaVinciRe shares and the repayment of the outstanding principal of the DaVinciRe revolving credit facility of $200.0 million. Partially offsetting the above cash flows used in financing activities, was a $70.0 million cash inflow related to the redeemable noncontrolling interest portion of the DaVinciRe equity capital raise executed during the second quarter of 2011.

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A large portion of the coverages we provide can produce losses of high severity and low frequency, it is not possible to accurately predict our future cash flows from operating activities. As a consequence, cash flows from operating activities may fluctuate, perhaps significantly, between individual quarters and years. Due to the magnitude and relatively recent occurrence of the 2010 and 2011 large loss events, meaningful uncertainty remains regarding losses from these events and our actual ultimate net losses from these events may vary from preliminary estimates, perhaps materially. As a result, our cash flows from operations would be impacted accordingly.

Reserves for Claims and Claim Expenses

We believe the most significant accounting judgment made by management is our estimate of claims and claim expense reserves. Claims and claim expense reserves represent estimates, including actuarial and statistical projections at a given point in time, of the ultimate settlement and administration costs for unpaid claims and claim expenses arising from the insurance and reinsurance contracts we sell. We establish our claims and claim expense reserves by taking claims reported to us by insureds and ceding companies, but which have not yet been paid (“case reserves”), adding the costs for additional case reserves (“additional case reserves”) which represent our estimates for claims previously reported to us which we believe may not be adequately reserved as of that date, and adding estimates for the anticipated cost of claims incurred but not yet reported to us ("IBNR").

The following table summarizes our claims and claim expense reserves by line of business and split between case reserves, additional case reserves and IBNR:

At June 30, 2012	Case Reserves		Additional Case Reserves		IBNR		Total
(in thousands)
Catastrophe	$	698,335	$	306,158	$	160,478	$	1,164,971
Specialty	123,978		87,277		247,290		458,545
Total Reinsurance	822,313		393,435		407,768		1,623,516
Lloyd’s	19,219		7,920		74,411		101,550
Insurance	21,605		8,336		46,240		76,181
Total	$	863,137	$	409,691	$	528,419	$	1,801,247
At December 31, 2011
(in thousands)
Catastrophe	$	681,771	$	271,990	$	388,147	$	1,341,908
Specialty	120,189		49,840		301,589		471,618
Total Reinsurance	801,960		321,830		689,736		1,813,526
Lloyd's	17,909		14,459		55,127		87,495
Insurance	32,944		3,515		54,874		91,333
Total	$	852,813	$	339,804	$	799,737	$	1,992,354

Our estimates of claims and claim expense reserves are not precise in that, among other matters, they are based on predictions of future developments and estimates of future trends and other variable factors. Some, but not all, of our reserves are further subject to the uncertainty inherent in actuarial methodologies and estimates. Because a reserve estimate is simply an insurer’s estimate at a point in time of its ultimate liability, and because there are numerous factors which affect reserves and claims payments that cannot be determined with certainty in advance, our ultimate payments will vary, perhaps materially, from our estimates of reserves. If we determine in a subsequent period that adjustments to our previously established reserves are appropriate, such adjustments are recorded in the period in which they are identified. During the six months ended June 30, 2012, changes to prior year estimated claims reserves increased (decreased) our net income (loss) by $101.3 million (2011 - $88.8 million), excluding the consideration of changes in reinstatement premium, profit commissions, redeemable noncontrolling interest - DaVinciRe, equity in net claims and claim expenses of Top Layer Re and income tax.

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Our reserving methodology for each line of business uses a loss reserving process that calculates a point estimate for the Company’s ultimate settlement and administration costs for claims and claim expenses. We do not calculate a range of estimates. We use this point estimate, along with paid claims and case reserves, to record our best estimate of additional case reserves and IBNR in our consolidated financial statements. Under GAAP, we are not permitted to establish estimates for catastrophe claims and claim expense reserves until an event occurs that gives rise to a loss.

Reserving for our reinsurance claims involves other uncertainties, such as the dependence on information from ceding companies, which among other matters, includes the time lag inherent in reporting information from the primary insurer to us or to our ceding companies and differing reserving practices among ceding companies. The information received from ceding companies is typically in the form of bordereaux, broker notifications of loss and/or discussions with ceding companies or their brokers. This information can be received on a monthly, quarterly or transactional basis and normally includes estimates of paid claims and case reserves. We sometimes also receive an estimate or provision for IBNR. This information is often updated and adjusted from time to time during the loss settlement period as new data or facts in respect of initial claims, client accounts, industry or event trends may be reported or emerge in addition to changes in applicable statutory and case laws.

Our estimates of losses from the large events of 2011, 2010 and 2008 are based on factors including currently available information derived from the Company's claims information from certain customers and brokers, industry assessments of losses from the events, proprietary models, and the terms and conditions of our contracts. The uncertainty of our estimates for the 2011 and 2010 events is additionally impacted by the preliminary nature of the information available, the magnitude and relative infrequency of the events, the expected duration of the respective claims development period, inadequacies in the data provided thus far by industry participants and the potential for further reporting lags or insufficiencies (particularly in respect of the Chilean, September 2010 New Zealand, 2011 New Zealand and Tohoku earthquakes); and in the case of the Australian flooding and the Thailand flooding, significant uncertainty as to the form of the claims and legal issues including, but not limited to, the number, nature and fiscal periods of the loss events under the relevant terms of insurance contracts and reinsurance treaties. In addition, a significant portion of the net claims and claim expenses associated with the New Zealand and Tohoku earthquakes are concentrated with a few large clients and therefore the loss estimates for these events may vary significantly based on the claims experience of those clients. Loss reserve estimation in respect of our retrocessional contracts poses further challenges compared to directly assumed reinsurance. A significant portion of our reinsurance recoverable relates to the New Zealand and Tohoku earthquakes. There is inherent uncertainty and complexity in evaluating loss reserve levels and reinsurance recoverable amounts, due to the nature of the losses relating to earthquake events, including that loss development time frames tend to take longer with respect to earthquake events. The contingent nature of business interruption and other exposures will also impact losses in a meaningful way, especially with regard to the Tohoku earthquake and Thailand flooding, which we believe may give rise to significant complexity in respect of claims handling, claims adjustment and other coverage issues, over time. Given the magnitude and relatively recent occurrence of these events, meaningful uncertainty remains regarding total covered losses for the insurance industry and, accordingly, several of the key assumptions underlying our loss estimates. In addition, our actual net losses from these events may increase if our reinsurers or other obligors fail to meet their obligations.

Because of the inherent uncertainties discussed above, we have developed a reserving philosophy which attempts to incorporate prudent assumptions and estimates, and we have generally experienced favorable net development on prior year reserves in the last several years. However, there is no assurance that this will occur in future periods.

Prior Year Development of Reserve for Net Claims and Claim Expenses

We use statistical and actuarial methods to estimate ultimate expected claims and claim expenses. The period of time from the reporting of a claim to us and the settlement of our liability may be many years. During this period, additional facts and trends will be revealed. As these factors become apparent, case reserves will be adjusted, sometimes requiring an increase or decrease in the overall reserve for claims and claim expenses, and at other times requiring a reallocation of IBNR reserves to specific case reserves or additional case reserves. These estimates are reviewed regularly, and such adjustments, if any, are reflected in the results of operations in the period in which they become known and are accounted for as changes in estimates. Adjustments to our reserve for claims and claim expenses can impact current year

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net income (loss) by increasing net income or decreasing net loss if the estimates of prior year claims and claim expense reserves prove to be overstated or by decreasing net income or increasing net loss if the estimates of prior year claims and claim expense reserves prove to be insufficient.

Our estimates of claims and claim expenses are also based in part upon the estimation of claims resulting from natural and man-made disasters such as hurricanes, earthquakes, tsunamis, winter storms, terrorist attacks and other catastrophic events. Estimation of claims resulting from catastrophic events is inherently difficult because of the potential severity of property catastrophe claims. Additionally, we have recently increased our specialty reinsurance business but do not have the benefit of a significant amount of our own historical experience in certain of these lines. Therefore, we use both proprietary and commercially available models, as well as historical (re)insurance industry claims experience, for purposes of evaluating future trends and providing an estimate of ultimate claims costs.

Activity in the liability for unpaid claims and claim expenses is summarized as follows:

Six months ended June 30,	2012			2011
Net reserves as of January 1	$	1,588,325		$	1,156,132
Net incurred related to:
Current year	166,421			868,629
Prior years	(101,318		)	(88,831		)
Total net incurred	65,103			779,798
Net paid related to:
Current year	18,937			51,578
Prior years	32,021			46,869
Total net paid	50,958			98,447
Total net reserves as of June 30	1,602,470			1,837,483
Reinsurance recoverable as of June 30	198,777			333,245
Total gross reserves as of June 30	$	1,801,247		$	2,170,728

The following table details our prior year development by segment of its liability for unpaid claims and claim expenses:

Six months ended June 30,	2012			2011
Reinsurance	$	(87,963	)	$	(91,137	)
Lloyd's	(10,685		)	204
Insurance	(2,670		)	2,102
Total	$	(101,318	)	$	(88,831	)

For the six months ended June 30, 2012, the prior year net favorable development of $101.3 million included favorable development of $88.0 million, $10.7 million and $2.7 million attributable to our Reinsurance, Lloyd's and Insurance segments, respectively. Within our Reinsurance segment, the catastrophe unit experienced $68.1 million of favorable development on prior years claims and claim expense reserves and the specialty reinsurance unit experienced $19.8 million of favorable development on prior years claims and claim expense reserves.

For the six months ended June 30, 2011, the prior year favorable development of $88.8 million included favorable development of $91.1 million, adverse development of $0.2 million and adverse development of $2.1 million attributable to our Reinsurance, Lloyd's and Insurance segments, respectively. Within our Reinsurance segment, the catastrophe unit experienced $31.5 million of favorable development on prior years claims and claim expense reserves and the specialty reinsurance unit experienced $59.6 million of favorable development on prior years claims and claim expense reserves.

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Reinsurance Segment

We review substantially all of our catastrophe reinsurance claims and claim expense reserves quarterly. Our quarterly review procedures include identifying events that have occurred up to the latest balance sheet date, determining our best estimate of the ultimate expected cost to settle all claims and administrative costs associated with those new events which have arisen during the reporting period, reviewing the ultimate expected cost to settle claims and administrative costs associated with those events which occurred during previous periods, and considering new estimation techniques, such as additional actuarial methods or other statistical techniques, that can assist us in developing our best estimate. This process is judgmental in that it involves reviewing changes in paid and reported claims each period and adjusting our estimates of the ultimate expected claims for each event where there are developments that are different from our previous expectations. If we determine that adjustments to an earlier estimate are appropriate, such adjustments are recorded in the period in which they are identified. The level of our claims associated with certain catastrophes can be very large. For example, within our Reinsurance segment, initial estimated ultimate claims associated with the 2005 hurricanes, Katrina, Rita and Wilma, were over $1.5 billion, the 2008 hurricanes, Gustav and Ike, were over $530 million and the large losses of 2011 (including the 2011 New Zealand earthquake, the Tohoku earthquake, the U.S. tornadoes, flooding in Australia, certain aggregate losses, hurricane Irene and the Thailand floods) were over $1.2 billion. As a result, small percentage changes in the estimated ultimate claims of large catastrophic events can significantly impact our reserves for claims and claim expenses in subsequent periods.

When initially developing reserving techniques for our specialty reinsurance coverages, we considered estimating reserves utilizing several actuarial techniques such as paid and reported claims development methods. We elected to use the Bornhuetter-Ferguson actuarial method because this method is appropriate for lines of business, such as our specialty reinsurance business, where there is a lack of historical claims experience. This method allows for greater weight to be applied to expected results in periods where little or no actual experience is available, and, hence, is less susceptible to the potential pitfall of being excessively impacted by one particular year or quarter of actual paid and/or reported claims data. This method uses initial expected claims ratio expectations to the extent that claims are not paid or reported, and it assumes that past experience is not fully representative of the future. As our reserves for claims and claim expenses age, and actual claims experience becomes available, this method places less weight on expected experience and places more weight on actual experience. This experience, which represents the difference between expected reported claims and actual reported claims is reflected in the respective reporting period as a change in estimate. We reevaluate our actuarial reserving techniques on a periodic basis.

We review substantially all of our specialty reinsurance claims and claim expense reserves quarterly. Typically, the quarterly review procedures include reviewing paid and reported claims in the most recent reporting period, reviewing the development of paid and reported claims from prior periods, and reviewing our overall experience by underwriting year and in the aggregate. We monitor our expected ultimate claims and claim expense ratios and expected claims reporting assumptions on a quarterly basis and compare them to our actual experience. These actuarial assumptions are generally reviewed annually, based on input from our actuaries, underwriters, claims personnel and finance professionals, although adjustments may be made more frequently if needed. Assumption changes are made to adjust for changes in the pricing and terms of coverage we provide, changes in industry standards, as well as our actual experience, to the extent we have enough data to rely on our own experience. If we determine that adjustments to an earlier estimate are appropriate, such adjustments are recorded in the period in which they are identified.

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The following table details the development of our liability for unpaid claims and claim expenses for our Reinsurance segment for the six months ended June 30, 2012 split between our catastrophe reinsurance unit and our specialty reinsurance unit and then further split between catastrophe claims and claim expenses and attritional claims and claim expenses:

Six months ended June 30, 2012	Catastrophe Reinsurance Unit			Specialty Reinsurance Unit		Reinsurance Segment
Catastrophe claims and claim expenses
Large catastrophe events
U.K. Floods (2007)	$	17,271		$	—	$	17,271
Tohoku Earthquake and Tsunami (2011)	12,025			—		12,025
Hurricanes Katrina, Rita and Wilma (2005)	3,859			2,000		5,859
Hurricane Irene (2011)	4,630			—		4,630
Thailand Floods (2011)	3,932			—		3,932
New Zealand Earthquake (2011)	(5,894		)	—		(5,894		)
Other	2,221			—		2,221
Total large catastrophe events	38,044			2,000		40,044
Small catastrophe events
Danish Floods (2011)	5,000			—		5,000
U.S. PCS 63 Winter Storm (2011)	2,600			—		2,600
U.S. PCS 42 Winter Storm (2011)	2,560			—		2,560
U.S. PCS 53 Winter Storm (2011)	2,179			—		2,179
Other	11,827			—		11,827
Total small catastrophe events	24,166			—		24,166
Total catastrophe claims and claim expenses	$	62,210		$	2,000	$	64,210
Attritional claims and claim expenses
Bornhuetter-Ferguson actuarial method - actual reported claims greater than expected claims	$	—		$	3,422	$	3,422
Actuarial assumption changes	5,932			14,399		20,331
Total attritional claims and claim expenses	$	5,932		$	17,821	$	23,753
Total favorable development of prior accident years claims and claim expenses	$	68,142		$	19,821	$	87,963

Catastrophe Reinsurance Unit

The favorable development of prior accident years claims and claim expenses within our catastrophe reinsurance unit in the six months ended June 30, 2012 of $68.1 million was primarily due to net reductions of $38.0 million arising from the estimated ultimate claims of large catastrophe events, including the 2007 U.K. flooding, the Tohoku earthquake, the 2005 hurricanes, hurricane Irene of 2011 and the 2011 Thailand floods, as reported claims came in better than expected. The remainder of the favorable development of prior accident years claims and claim expenses was due to a reduction in ultimate claims on a number of relatively small catastrophes, all principally the result of reported claims coming in less than expected, resulting in formulaic decreases to the ultimate claims for these events. Partially offsetting the reductions noted above was a $5.9 million increase in net claims and claim expenses from the 2011 New Zealand earthquake primarily as a result of increased cedant gross ultimate loss estimates.

Specialty Reinsurance Unit

The favorable development of prior accident years claims and claim expenses within our specialty reinsurance unit in the six months ended June 30, 2012 of $19.8 million includes $14.4 million associated with actuarial assumption changes, principally in our casualty and medical malpractice lines of business, and primarily as a result of revised initial expected claims ratios and claim development factors due to

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actual experience coming in better than expected and $3.4 million due to reported claims coming in lower than expected on prior accident years events, as a result of the application of our formulaic actuarial reserving methodology.

The following table details the development of our liability for unpaid claims and claim expenses for its Reinsurance segment for the six months ended June 30, 2011 split between its catastrophe reinsurance unit and its specialty reinsurance unit and then further split between catastrophe claims and claim expenses and attritional claims and claim expenses:

Six months ended June 30, 2011	Catastrophe Reinsurance Unit			Specialty Reinsurance Unit		Reinsurance Segment
Catastrophe claims and claim expenses
Large catastrophe events
Hurricanes Katrina, Rita and Wilma (2005)	$	7,743		$	4,108	$	11,851
Tropical Cyclone Tasha (2010)	4,016			1,500		5,516
Chile Earthquake (2010)	—			3,750		3,750
U.K. Floods (2007)	3,635			—		3,635
Hurricanes Charley, Francis, Ivan and Jeanne (2004)	2,631			—		2,631
European Windstorm Kyrill (2007)	2,494			—		2,494
New Zealand Earthquake (2010)	(1,972		)	—		(1,972		)
Total large catastrophe events	18,547			9,358		27,905
Small catastrophe events
U.S. PCS 21 Wildland Fire (2007)	3,000			—		3,000
U.S. PCS 96 Wind and Thunderstorm (2010)	2,107			—		2,107
Other	7,842			—		7,842
Total small catastrophe events	12,949			—		12,949
Total catastrophe claims and claim expenses	$	31,496		$	9,358	$	40,854
Attritional claims and claim expenses
Bornhuetter-Ferguson actuarial method - actual reported claims less than expected claims	—			$	23,483	$	23,483
Actuarial assumption changes	—			26,800		26,800
Total attritional claims and claim expenses	$	—		$	50,283	$	50,283
Total favorable development of prior accident years claims and claim expenses	$	31,496		$	59,641	$	91,137

Catastrophe Reinsurance Unit

The favorable development of prior accident years claims and claim expenses within our catastrophe reinsurance unit of $31.5 million in the six months ended June 30, 2011 was due to $18.5 million and $12.9 million related to large and small catastrophe events, respectively. Favorable development of prior accident years claims and claim expenses related to large catastrophe events was primarily related to decreases in estimated ultimate losses on the 2005 hurricanes of $7.7 million, tropical cyclone Tasha of $4.0 million and the 2007 U.K. flooding of $3.6 million, with the remainder due to better than expected claims emergence associated with a number of other large and small catastrophe events.

Specialty Reinsurance Unit

The favorable development of prior accident years claims and claim expenses within our specialty reinsurance unit in the six months ended June 30, 2011 of $59.6 million was principally the result of $23.5 million due to actual reported loss activity coming in better than expected and $26.8 million due to changes in our actuarial assumptions determined in accordance with our annually scheduled review of our specialty unit actuarial assumptions. In addition, favorable development on large catastrophe events of $9.4 million

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was principally due to decreases in estimated ultimate losses on the 2005 hurricanes of $4.1 million, the Chilean earthquake of $3.8 million and tropical cyclone Tasha of $1.5 million.

Lloyd's Segment

We use the Bornhuetter-Ferguson actuarial method to estimate claims and claim expenses within our Lloyd's segment for our property and casualty (re)insurance contracts and quota share reinsurance business. The comments discussed above relating to our reserving techniques and processes for the specialty reinsurance unit within our Reinsurance segment also apply to our Lloyd's segment. In addition, certain of our coverages may be impacted by natural and man-made catastrophes. We estimate claim reserves for these claims after the event giving rise to these claims occurs, following a process that is similar to our catastrophe reinsurance unit discussed above.

The following table details the development of our liability for unpaid claims and claim expenses for our Lloyd's segment for the six months ended June 30, 2012 and 2011:

Six months ended June 30,	2012			2011
Catastrophe events	$	4,000		$	—
Attritional claims and claim expenses	7,970			(204		)
Actuarial assumption changes	(1,285		)	—
Total	$	10,685		$	(204	)

The favorable development of prior accident years claims and claim expenses within our Lloyd's segment of $10.7 million during the six months ended June 30, 2012 was principally due to decreases in estimated ultimate losses on certain specific events, including $2.0 million related to hurricane Irene and $2.0 million related to the Thailand floods, with the remainder due to reported claims coming in lower than expected on prior accident years events, as a result of the application of our formulaic actuarial reserving methodology, partially offset by adverse development of $1.3 million due to assumption changes used in our formulaic actuarial reserving methodology.

Insurance Segment

The Company uses the Bornhuetter-Ferguson actuarial method to estimate claims and claim expenses within its Insurance segment for its property and casualty insurance contracts and quota share reinsurance business. The comments discussed above relating to the Company's reserving techniques and processes for its specialty reinsurance unit within the Company's Reinsurance segment also apply to the Company's Insurance segment. In addition, certain of the Company's coverages may be impacted by natural and man-made catastrophes. The Company estimates claim reserves for these claims after the event giving rise to these claims occurs, following a process that is similar to the Company's catastrophe reinsurance unit discussed above. The following table details the development of the Company's liability for unpaid claims and claim expenses for its Insurance segment for the the six months ended June 30, 2012 and 2011:

Six months ended June 30,	2012			2011
Catastrophe events	$	(1,103	)	$	(150	)
Attritional claims and claim expenses	3,773			(1,952		)
Total	$	2,670		$	(2,102	)

The favorable development on prior accident years of $2.7 million in the six months ended June 30, 2012 within our Insurance segment was principally due to reductions in reported losses on certain attritional loss contracts. The adverse development of $2.1 million in the six months ended June 30, 2011 on prior accident year claims and claim expenses within the Company's Insurance segment was principally driven by the application of the Company's formulaic actuarial reserving methodology for this business with the increases being due to actual paid and reported claim activity coming in higher than what was originally anticipated when setting the initial reserves.

There were no significant changes made to the actuarial assumptions in the six months ended June 30, 2012 or 2011.

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Capital Resources

Our total capital resources are as follows:

	At June 30, 2012		At December 31, 2011		Change
(in thousands)
Common shareholders’ equity	$	3,293,010	$	3,055,193	$	237,817
Preference shares	550,000		550,000		—
Total shareholders’ equity attributable to RenaissanceRe	3,843,010		3,605,193		237,817
5.875% Senior Notes	100,000		100,000		—
5.750% Senior Notes	249,293		249,247		46
RenaissanceRe revolving credit facility – borrowed	—		—		—
RenaissanceRe revolving credit facility – unborrowed	150,000		150,000		—
Renaissance Trading credit facility – borrowed	5,000		4,373		627
Renaissance Trading credit facility – unborrowed	5,000		5,627		(627		)
Total capital resources	$	4,352,303	$	4,114,440	$	237,863

In the first six months of 2012, our capital resources increased by $237.9 million, principally due to an increase in shareholders' equity as a result of our comprehensive income attributable to RenaissanceRe of $362.0 million, partially offset by $27.7 million of dividends on our common shares and $91.6 million of common share repurchases as discussed in more detail in “Item 2. Unregistered Sales of Equity Securities and Use of Proceeds”. There have been no material changes in our capital resources as disclosed in our Annual Report on Form 10-K for the year ended December 31, 2011, other than noted below.

RenaissanceRe Revolving Credit Facility

Effective May 17, 2012, RenaissanceRe entered into a credit agreement with various banks and financial institutions parties thereto (collectively, the "Lenders"), Wells Fargo Bank, National Association ("Wells Fargo"), as fronting bank, letter of credit administrator and administrative agent for the Lenders, Citibank, N.A. (“Citibank”), as syndication agent, and Wells Fargo Securities, LLC and Citigroup Global Markets Inc., as joint lead arrangers and joint lead bookrunners (the “Credit Agreement”). The Credit Agreement replaces the Credit Agreement, dated as of April 22, 2010, which was terminated concurrently with the effectiveness of the Credit Agreement.

The Credit Agreement provides for a revolving commitment to RenaissanceRe of $150.0 million, including the issuance of letters of credit for the account of RenaissanceRe and RenaissanceRe’s insurance subsidiaries of up to $150.0 million and the issuance of letters of credit for the account of RenaissanceRe’s non-insurance subsidiaries of up to $50.0 million. RenaissanceRe has the right, subject to satisfying certain conditions, to increase the size of the facility to $250.0 million. Amounts borrowed under the Credit Agreement bear interest at a rate selected by RenaissanceRe equal to the Base Rate or LIBOR (each as defined in the Credit Agreement) plus a margin, all as more fully set forth in the Credit Agreement.

The Credit Agreement contains representations, warranties and covenants customary for bank loan facilities of this type. In addition to customary covenants which limit RenaissanceRe and its subsidiaries' ability to merge, consolidate, enter into negative pledge agreements, sell a substantial amount of assets, incur liens and declare or pay dividends under certain circumstances, the Credit Agreement also contains certain financial covenants. These financial covenants generally provide that consolidated debt to capital shall not exceed the ratio of 0.35:1 and that the consolidated net worth of RenaissanceRe and Renaissance Reinsurance shall equal or exceed approximately $2.2 billion and $1.1 billion, respectively (the “Net Worth Requirements”). The Net Worth Requirements are recalculated effective as of the end of each fiscal year, all as more fully set forth in the Credit Agreement. The scheduled commitment maturity date of the Credit Agreement is May 17, 2015.

In the event of the occurrence and continuation of certain events of default, the administrative agent shall, at the request of the Required Lenders (as defined in the Credit Agreement), or may, with the consent of the Required Lenders, among other things, take any or all of the following actions: terminate the Lenders'

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obligations to make loans or issue letters of credit, accelerate the outstanding obligations of RenaissanceRe under the Credit Agreement and require RenaissanceRe to cash collateralize the outstanding letter of credit obligations in an amount equal to 103% thereof.

Principal Letter of Credit Facility

Effective May 17, 2012, RenaissanceRe and certain of its affiliates, Renaissance Reinsurance, ROE, Glencoe and DaVinci (such affiliates, collectively, the “Account Parties”), entered into a Fourth Amended and Restated Reimbursement Agreement with various banks and financial institutions parties thereto (collectively, the “Banks”), Wells Fargo, as issuing bank, administrative agent and collateral agent for the Banks, and certain other agents (the “Reimbursement Agreement”). The Reimbursement Agreement amends and restates in its entirety the Third Amended and Restated Reimbursement Agreement, dated as of April 22, 2010 (the “Prior Reimbursement Agreement”), which was terminated concurrently with the effectiveness of the Reimbursement Agreement.

The Reimbursement Agreement continues to serve as RenaissanceRe's principal secured letter of credit facility and the commitments thereunder expire on May 17, 2015. The Reimbursement Agreement provides a commitment from the Banks in an aggregate amount of $450.0 million, which may be increased up to an amount not to exceed $800.0 million, subject to RenaissanceRe satisfying certain conditions. The Reimbursement Agreement contains representations, warranties and covenants in respect of RenaissanceRe, the Account Parties and their respective subsidiaries that are customary for facilities of this type, including customary covenants limiting the ability to merge, consolidate and sell a substantial amount of assets. The Reimbursement Agreement contains certain financial covenants requiring RenaissanceRe and DaVinci to maintain a minimum net worth of approximately $1.8 billion and $675.0 million, respectively, which requirements are recalculated effective as of the end of each fiscal year, all as more fully set forth in the Reimbursement Agreement.

Under the Reimbursement Agreement, each Account Party is required to pledge eligible collateral having a value sufficient to cover all of its obligations under the Reimbursement Agreement, including reimbursement obligations for outstanding letters of credit issued for its account. In the case of an event of default under the Reimbursement Agreement, and in certain other circumstances set forth in the Reimbursement Agreement, including, among others, a decrease in the net worth of an Account Party below the level specified therein for such Account Party, a decline in collateral value, and certain failures to maintain specified ratings, the Banks may exercise certain remedies, including conversion of collateral into cash.

Under the Reimbursement Agreement, redeemable preference shares of Renaissance Investment Holdings Ltd. are no longer eligible collateral. Therefore, the Second Amended and Restated RIHL Undertaking and Agreement, dated as of April 22, 2010, entered into in connection with the Prior Reimbursement Agreement, was terminated concurrently with the execution of the Reimbursement Agreement.

At June 30, 2012, we had $272.3 million of letters of credit with effective dates on or before June 30, 2012 outstanding under the Reimbursement Agreement.

Letters of Credit

At June 30, 2012, we had total letters of credit outstanding under all facilities of $446.4 million.

Renaissance Reinsurance is also party to a collateralized letter of credit and reimbursement agreement in the amount of $37.5 million that supports our Top Layer Re joint venture. Renaissance Reinsurance is obligated to make a mandatory capital contribution of up to $50.0 million in the event that a loss reduces Top Layer Re’s capital below a specified level.

Multi-Beneficiary Reinsurance Trusts

Effective March 15, 2011, each of Renaissance Reinsurance and DaVinci was approved as a Trusteed Reinsurer in the State of New York and established a multi-beneficiary reinsurance trust ("MBRT") to collateralize its respective (re)insurance liabilities associated with U.S. domiciled cedants. The MBRTs are subject to the rules and regulations of the State of New York and the respective deed of trust, including but not limited to certain minimum capital funding requirements, investment guidelines, capital distribution restrictions and regulatory reporting requirements. Following the initial approval in the State of New York, Renaissance Reinsurance and DaVinci have submitted applications to essentially all U.S. states to become

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Trusteed Reinsurers. As of June 30, 2012, Renaissance Reinsurance and DaVinci are approved in 46 and 45 U.S. states, respectively. We expect, over time, to transition cedants with existing outstanding letters of credit, to the appropriate MBRT as determined by cedant state of domicile, thereby reducing our absolute and relative reliance on letters of credit. New business incepting with cedants domiciled in approved states will be collateralized using a MBRT. Cedants collateralized with a MBRT will be eligible for automatic reinsurance credit in their respective U.S. regulatory filings. Assets held under trust at June 30, 2012 with respect to the MBRTs totaled $402.1 million and $153.5 million for Renaissance Reinsurance and DaVinci, respectively.

Renaissance Trading Margin Facility and Guarantees

Renaissance Trading maintains a brokerage facility with a leading prime broker, which has an associated margin facility.  This margin facility, which we believe allows Renaissance Trading to prudently manage its cash position related to its exchange traded products, is supported by a $20.0 million guarantee issued by RenaissanceRe.  Interest on amounts outstanding under this facility is at overnight LIBOR plus 75 basis points.  At June 30, 2012, $5.0 million was outstanding under the facility.

At June 30, 2012, RenaissanceRe had provided guarantees in the aggregate amount of $354.3 million to certain counterparties of the weather and energy risk operations of Renaissance Trading. In the future, RenaissanceRe may issue guarantees for other purposes or increase the amount of guarantees issued to counterparties of Renaissance Trading.

Redeemable Noncontrolling Interest – DaVinciRe

DaVinciRe shareholders are party to a shareholders agreement (the “Shareholders Agreement”) which provides DaVinciRe shareholders, excluding us, with certain redemption rights, that enable each shareholder to notify DaVinciRe of such shareholder's desire for DaVinciRe to repurchase up to half of such shareholder's aggregate number of shares held, subject to certain limitations, such as limiting the aggregate of all share repurchase requests to 25% of DaVinciRe's capital in any given year and satisfying all applicable regulatory requirements. If total shareholder requests exceed 25% of DaVinciRe's capital, the number of shares repurchased will be reduced among the requesting shareholders pro-rata, based on the amounts desired to be repurchased. Shareholders desiring to have DaVinciRe repurchase their shares must notify DaVinciRe before March 1 of each year. The repurchase price will be based on GAAP book value as of the end of the year in which the shareholder notice is given, and the repurchase will be effective as of such date. Payment will be made by April 1 of the following year, following delivery of the audited financial statements for the year in which the repurchase was effective. The repurchase price is subject to a true-up for development on outstanding loss reserves after settlement of all claims relating to the applicable years.

Effective January 1, 2012, an existing third party shareholder sold a portion of its shares in DaVinciRe to a new third party shareholder.  In connection with the sale by the existing third party shareholder, DaVinciRe retained a $4.9 million holdback.  In addition, effective January 1, 2012, we sold a portion of our shares of DaVinci Re to a separate new third party shareholder.  We sold these shares for $98.9 million, net of a $10.0 million reserve holdback due from DaVinciRe.  Our ownership in DaVinciRe was 42.8% at December 31, 2011 and subsequent to the above transactions, our ownership interest in DaVinciRe decreased to 34.7% effective January 1, 2012.

Certain third party shareholders of DaVinciRe submitted repurchase notices on or before the required annual redemption notice date of March 1, 2012, in accordance with the Shareholders Agreement.  The repurchase notices submitted on or before March 1, 2012, were for shares of DaVinciRe with a GAAP book value of $50.0 million at June 30, 2012.

On June 1, 2012, DaVinciRe completed an equity raise of $49.3 million from a new third party investor.  In addition, the Company and an existing third party investor each sold $24.7 million in common shares of DaVinciRe to another existing third party investor, for a total of $49.4 million.  In connection with the sale by the Company and the existing third party investor, DaVinciRe retained a $5.0 million holdback, $2.5 million of which is payable to the Company.  As a result of the above transactions, the Company's ownership in DaVinciRe decreased to 31.5% effective retroactively to January 1, 2012. We expect our ownership in DaVinciRe to fluctuate over time.

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Investments

The table below shows the aggregate amounts of our invested assets:

	June 30, 2012				December 31, 2011				Change
(in thousands, except percentages)
U.S. treasuries	$	1,126,759	17.1	%	$	885,152	14.3	%	$	241,607
Agencies	436,691		6.7	%	158,561		2.6	%	278,130
Non-U.S. government (Sovereign debt)	177,231		2.7	%	227,912		3.7	%	(50,681		)
FDIC guaranteed corporate	29,386		0.4	%	423,630		6.8	%	(394,244		)
Non-U.S. government-backed corporate	393,875		6.0	%	641,082		10.3	%	(247,207		)
Corporate	1,664,722		25.3	%	1,206,904		19.4	%	457,818
Agency mortgage-backed	592,355		9.0	%	441,749		7.1	%	150,606
Non-agency mortgage-backed	153,674		2.3	%	104,771		1.7	%	48,903
Commercial mortgage-backed	470,167		7.1	%	325,729		5.2	%	144,438
Asset-backed	12,197		0.2	%	18,027		0.3	%	(5,830		)
Total fixed maturity investments, at fair value	5,057,057		76.8	%	4,433,517		71.4	%	623,540
Short term investments, at fair value	654,912		9.9	%	905,477		14.6	%	(250,565		)
Equity investments trading, at fair value	55,381		0.8	%	50,560		0.8	%	4,821
Other investments, at fair value	743,568		11.3	%	748,984		12.1	%	(5,416		)
Total managed investment portfolio	6,510,918		98.8	%	6,138,538		98.9	%	372,380
Investments in other ventures, under equity method	79,692		1.2	%	70,714		1.1	%	8,978
Total investments	$	6,590,610	100.0	%	$	6,209,252	100.0	%	$	381,358

At June 30, 2012, we held investments totaling $6.6 billion, compared to $6.2 billion at December 31, 2011, with net unrealized appreciation included in accumulated other comprehensive income of $12.5 million at June 30, 2012, compared to $11.8 million at December 31, 2011. Our investment guidelines stress preservation of capital, market liquidity, and diversification of risk. Notwithstanding the foregoing, our investments are subject to market-wide risks and fluctuations, as well as to risks inherent in particular securities.

As the reinsurance coverages we sell include substantial protection for damages resulting from natural and man-made catastrophes, we expect from time to time to become liable for substantial claim payments on short notice. Accordingly, our investment portfolio as a whole is structured to seek to preserve capital and provide a high level of liquidity which means that the large majority of our investment portfolio consists of highly rated fixed income securities, including U.S. treasuries, agencies, highly rated sovereign and supranational securities, high-grade corporate securities, FDIC guaranteed corporate securities and mortgage-backed and asset-backed securities. We also have an allocation to other investments, including hedge funds, private equity partnerships, senior secured bank loan funds and other investments.

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Other Investments

The table below shows our portfolio of other investments:

	June 30, 2012		December 31, 2011		Change
(in thousands)
Private equity partnerships	$	360,268	$	367,909	$	(7,641	)
Senior secured bank loan funds	269,317		257,870		11,447
Catastrophe bonds	106,470		70,999		35,471
Hedge funds	6,243		21,344		(15,101		)
Non-U.S. fixed income funds	—		28,862		(28,862		)
Miscellaneous other investments	1,270		2,000		(730		)
Total other investments	$	743,568	$	748,984	$	(5,416	)

We account for our other investments at fair value in accordance with ASC Topic Financial Instruments. The fair value of certain of our fund investments, which principally include hedge funds, private equity funds, senior secured bank loan funds and non-U.S. fixed income funds, are recorded on our balance sheet in other investments, and is generally established on the basis of the net valuation criteria established by the managers of such investments, if applicable. The net valuation criteria established by the managers of such investments is established in accordance with the governing documents of such investments. Many of our fund investments are subject to restrictions on redemptions and sales which are determined by the governing documents and limit our ability to liquidate these investments in the short term. Certain of our fund managers, fund administrators, or both, are unable to provide final fund valuations as of our current reporting date. The typical reporting lag experienced by us to receive a final net asset value report is one month for hedge funds, senior secured bank loan funds and non-U.S. fixed income funds and three months for private equity funds, although, in the past, in respect of certain of our private equity funds, we have on occasion experienced delays of up to six months at year end, as the private equity funds typically complete their respective year-end audits before releasing their final net asset value statements.

In circumstances where there is a reporting lag between the current period end reporting date and the reporting date of the latest fund valuation, we estimate the fair value of these funds by starting with the prior month or quarter-end fund valuations, adjusting these valuations for actual capital calls, redemptions or distributions, as well as the impact of changes in foreign currency exchange rates, and then estimating the return for the current period. In circumstances in which we estimate the return for the current period, all information available to us is utilized. This principally includes preliminary estimates reported to us by our fund managers, obtaining the valuation of underlying portfolio investments where such underlying investments are publicly traded and therefore have a readily observable price, using information that is available to us with respect to the underlying investments, reviewing various indices for similar investments or asset classes, as well as estimating returns based on the results of similar types of investments for which we have obtained reported results, or other valuation methods, where possible. Actual final fund valuations may differ, perhaps materially so, from our estimates and these differences are recorded in our statement of operations in the period in which they are reported to us as a change in estimate. Included in net investment income for the six months ended June 30, 2012 is a loss of $4.7 million (2011 - $1.4 million) representing the change in estimate during the period related to the difference between our estimated net investment income due to the lag in reporting discussed above and the actual amount as reported in the final net asset values provided by our fund managers.

Our estimate of the fair value of catastrophe bonds are based on quoted market prices, or when such prices are not available, by reference to broker or underwriter bid indications.

Interest income, income distributions and realized and unrealized gains (losses) on other investments are included in net investment income and resulted in $37.2 million of net investment income for the six months ended June 30, 2012 (2011 - $45.4 million). Of this amount, $21.9 million relates to net unrealized gains (2011 - $33.7 million).

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We have committed capital to private equity partnerships and other investments of $681.8 million, of which $554.0 million has been contributed at June 30, 2012. Our remaining commitments to these investments at June 30, 2012 totaled $130.1 million. In the future, we may enter into additional commitments in respect of private equity partnerships or individual portfolio company investment opportunities.

EFFECTS OF INFLATION

The potential exists, after a catastrophe loss, for the development of inflationary pressures in a local economy. The anticipated effects on us are considered in our catastrophe loss models. Our estimates of the potential effects of inflation are also considered in pricing and in estimating reserves for unpaid claims and claim expenses. In addition, it is possible that the risk of general economic inflation has increased which could, among other things, cause claims and claim expenses to increase and also impact the performance of our investment portfolio. The actual effects of this potential increase in inflation on our results cannot be accurately known until, among other items, claims are ultimately settled. The onset, duration and severity of an inflationary period cannot be estimated with precision.

OFF-BALANCE SHEET AND SPECIAL PURPOSE ENTITY ARRANGEMENTS

At June 30, 2012, we have not entered into any off-balance sheet arrangements, as defined by Item 303(a)(4) of Regulation S-K.

CONTRACTUAL OBLIGATIONS

In the normal course of its business, the Company is a party to a variety of contractual obligations as summarized in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011. These contractual obligations are considered by the Company when assessing its liquidity requirements. As of June 30, 2012, there are no material changes in the Company’s contractual obligations as disclosed in the Company’s table of contractual obligations included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

In certain circumstances, our contractual obligations may be accelerated to dates other than those set forth in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011, due to defaults under the agreement governing those obligations (including pursuant to cross-default provisions in such agreement) or in connection with certain changes in control of the Company, if applicable. In addition, in connection with any such default under the agreement governing these obligations, in certain circumstances these obligations may bear an increased interest rate or be subject to penalties as a result of such a default.

CURRENT OUTLOOK

Catastrophe Exposed Market Developments

During 2011, the global insurance and reinsurance markets experienced significant losses from natural catastrophes, including severe flooding in Australia, the series of earthquakes affecting New Zealand, tornadoes in the U.S., hurricane Irene, the flooding which occurred in Thailand over four months and, most materially, the Tohoku earthquake. Overall, we believe these events somewhat depleted the excess capital we estimated was then held by private market insurers and reinsurers in 2010, and were among the factors contributing to a degree of increased demand for certain coverages and solutions, particularly in the impacted regions and in respect of the catastrophe-exposed products in which we specialize. In addition, over this period we believe that demand was favorably impacted by the ongoing adoption of Version 11.0 of the RMS Atlantic Hurricane Model for the U.S., and by the continued low investment return environment. During the June and July 2012 renewal markets we believe that supply, principally from traditional market participants and complemented by alternative capital providers generally offset increased demand, resulting in overall market pricing we estimate to have been approximately flat on a risk-adjusted basis. Moreover, we believe that many of the positive factors impacting market conditions since 2011 have now been absorbed by the market and, we believe, are unlikely to drive further improvement in our core catastrophe-exposed markets absent new developments. Accordingly, we cannot assure you that the increased demand of recent market renewals will be sustained, or that we can continue to improve the size and portfolio quality of our book of business.

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According to the National Oceanic and Atmospheric Administration, whose records date back to 1895, 2012 has thus far been the hottest year ever recorded in the U.S. Among other things, the extreme weather experienced, particularly including the severe and ongoing drought conditions throughout most of the Midwestern region of the U.S., has adversely impacted the production of a range of crops, including those subject to the U.S. federal government's multi-peril crop insurance ("MPCI") program. According to industry and government reports, a record number of U.S. farmers reportedly are prepared to abandon their 2012 crop, which may contribute towards significant insured claims for insurers and reinsurers that write MPCI. Preliminary estimates indicate that the total indemnified losses as a result of the Midwest droughts could significantly exceed last year's record of $10 billion, and would be borne primarily by the private carriers who write MPCI, or those who reinsure such carriers, with additional amounts subsidized by the U.S. federal government. We underwrite certain crop-related coverages principally on an excess of loss reinsurance basis with gross premiums written of approximately $8 million in 2012 of which approximately $3 million relates to the U.S. MPCI business. This excess of loss reinsurance is typically written at relatively low rates on line. While meaningful uncertainty remains regarding the impact of the severe U.S. drought conditions on crop prices and yields for the 2012 crop year, we currently believe that the crop insurance industry as a whole will sustain losses, perhaps significant in magnitude, as a result. Accordingly, any such losses could have a net negative impact on our business and operations and would likely be reflected in our third or fourth quarter 2012 results as the losses arise and become known.

General Economic Conditions

Meaningful uncertainty remains regarding the strength, duration and comprehensiveness of any economic recovery in the U.S. and our other key markets. In particular, global economic markets, including many of the key markets which we serve, may continue to be adversely impacted by the financial and fiscal instability of several European jurisdictions and, increasingly, the Eurozone market as a whole. Accordingly, we continue to believe that meaningful risk remains for continued uncertainty or disruptions in general economic and financial market conditions, which could give rise to increased economic uncertainty, or to further deterioration of economic conditions. Moreover, if economic growth were to return, such growth may be only at a comparably suppressed rate for a relatively extended period of time. Declining or weak economic conditions could reduce demand for the products sold by us or our customers, or our overall ability to write business at risk-adequate rates could weaken. In addition, persistent low levels of economic activity could adversely impact other areas of our financial performance, such as by contributing to unforeseen premium adjustments, mid-term policy cancellations or commutations, or asset devaluation. Any of the foregoing or other outcomes of a prolonged period of relative economic weakness could adversely impact our financial position or results of operations. In addition, during a period of extended economic weakness, we believe our consolidated credit risk, reflecting our counterparty dealings with customers, agents, brokers, retrocessionaires, capital providers and parties associated with our investment portfolio, among others, is likely to be increased. Several of these risks could materialize, and our financial results could be negatively impacted, even after the end of any economic downturn.

Moreover, we continue to monitor the risk that our principal markets will experience increased inflationary conditions, which would, among other things, cause costs related to our claims and claim expenses to increase, and impact the performance of our investment portfolio.  The onset, duration and severity of an inflationary period cannot be estimated with precision. The sovereign debt crisis in Europe and the related financial restructuring efforts has, among other factors, made it more difficult to predict the inflationary environment.

Our catastrophe-exposed operations are subject to the ever-present potential for significant volatility in capital due primarily to our exposure to severe catastrophic events. Our specialty reinsurance portfolio is also exposed to emerging risks arising from the ongoing relative economic weakness, including with respect to a potential increase of claims in directors and officers, errors and omissions, surety, casualty clash and other lines of business.

Historically low interest rates and lower spreads have lowered the yields at which we invest our assets relative to historical levels. We expect these developments, combined with the current composition of our investment portfolio and other factors, to continue to put downward pressure on our net investment income for the near term. In addition to impacting our reported net income, potential future losses on our investment portfolio, including potential future mark-to-market results, would adversely impact our equity capital. Moreover, as we invest cash from new premiums written or reinvest the proceeds of invested

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assets that mature or that we choose to sell, the yield on our portfolio is impacted by the prevailing environment of comparably low yields. While it is possible yields will improve in future periods, we currently expect the challenging economic conditions to persist and we are unable to predict with certainty when conditions will substantially improve, or the pace of any such improvement.

Market Conditions and Competition

Leading global intermediaries and other sources have generally reported that the U.S. casualty reinsurance market continues to reflect a relatively soft pricing environment, with pockets of niche or specialty casualty renewals providing more attractive opportunities for stronger or well-positioned reinsurers. We anticipate that persistent low investment returns and, to a degree, balance sheet issues in the broader market may increase demand for coverages on terms that we find attractive. However, we cannot assure you that any increased demand will indeed materialize or that we will be successful in consummating new or expanded transactions.

As described above, we currently anticipate a continued level of healthy demand for our catastrophe coverages over coming periods, offset by ample supplies of private market capital and decreased drivers of new demand. In addition, the relatively attractive prevailing market conditions for many of the products in which we specialize could also be offset by adverse or unforeseen factors. Renewal terms vary widely by insured account and our ability to shape our portfolio to improve its risk and return characteristics as estimated by us is subject to a range of competitive and commercial factors. While we believe that our strong relationships, and track record of superior claims paying ability and other client service will enable us to compete for the business we find attractive, we may not succeed in doing so; moreover, our relationships in emerging markets are not as developed as they are in our current core markets.

The market for our catastrophe reinsurance products is generally dynamic and volatile. The market dynamics noted above, increased or decreased catastrophe loss activity, and changes in the amount of capital in the industry can result in significant changes to the pricing, policy terms and demand for our catastrophe reinsurance products over a relatively short period of time. In addition, changes in state-sponsored catastrophe funds, or residual markets, which have generally grown dramatically in recent years, or the implementation of new government-subsidized or sponsored programs, can dramatically alter market conditions. We believe that the overall trend of increased frequency and severity of tropical cyclones experienced in recent years may continue for the foreseeable future. Increased understanding of the potential increase in frequency and severity of storms may contribute to increased demand for protection in respect of coastal risks which could impact pricing and terms and conditions in coastal areas over time. Overall, we expect higher property loss cost trends, driven by increased severity and by the potential for increased frequency, to continue in the future. At the same time, certain markets we target continue to be impacted by fundamental weakness experienced by primary insurers, due to ongoing economic weakness and, in many cases, inadequate primary insurance rate levels, including without limitation insurers operating on an admitted basis in Florida. These conditions, which occurred in a period characterized by relatively low insured catastrophic losses for these respective regions, have contributed to certain publicly announced instances of insolvency, regulatory supervision and other regulatory actions, and have weakened the ability of certain carriers to invest in reinsurance and other protections for coming periods, and in some cases to meet their existing premium obligations. It is possible that these dynamics will continue in future periods.

In addition, we continue to explore potential strategic transactions or investments, and other opportunities, from time to time that are presented to us or that we originate. In evaluating these potential investments and opportunities, we seek to improve the portfolio optimization of our business as a whole, to enhance our strategy, to achieve an attractive estimated return on equity in respect of investments, to develop or capitalize on a competitive advantage, and to source business opportunities that will not detract from our core operations.

Legislative and Regulatory Update

In April 2010, the U.S. House Financial Services Committee approved H.R. 2555, titled “The Homeowners Defense Act,” by a vote of 39-26. Concurrently, the Financial Services Committee passed legislation which would expand the National Flood Insurance Program (the “NFIP”) to cover damage to or loss of real or related personal property located in the U.S. arising from any windstorm (any hurricane, tornado, cyclone, typhoon, or other wind event) (this legislation, together with H.R. 2555, is referred to below as the “House

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Bills”).  H.R. 2555 would, if enacted, provide for the creation of (i) a federal reinsurance catastrophe fund; (ii) a federal consortium to facilitate qualifying state residual markets and catastrophe funds in securing reinsurance; and (iii) a federal bond guarantee program for state catastrophe funds in qualifying state residual markets.  While neither of the House Bills has been passed in Congress, members of both the House and Senate continue to express support for this legislation and it remains possible this legislation or similar legislation will be considered by Congress.

In early 2011, California's two Senators, Dianne Feinstein and Barbara Boxer, introduced the Earthquake Insurance Affordability Act of 2011 (S. 367), pursuant to which the federal government would provide limited federal backing to certain qualifying state-affiliated organizations that provide catastrophic residential earthquake insurance as a way to help them reduce the amount they spend each year in reinsurance premiums. In the third quarter of 2011, companion legislation was introduced in respect of S. 367 in the U.S. House of Representatives. According to published reports, the sole state organization currently eligible to participate is the California Earthquake Authority (the “CEA”). Should the legislation be enacted, the CEA has stated it would decrease significantly the relative and, perhaps, the absolute amount of private reinsurance purchased by the CEA in the future.

If enacted, any of these bills, or legislation similar to these proposals, would, we believe, likely contribute to the growth of state entities offering below market priced insurance and reinsurance in a manner adverse to us and market participants more generally. While none of this legislation has been enacted to date, and although we believe such legislation will continue to be vigorously opposed, if adopted these bills would likely diminish the role of private market catastrophe reinsurers and could adversely impact our financial results, perhaps materially.

In June 2012, Congress passed the Biggert-Waters Flood Insurance Reform and Modernization Act of 2012, which provided for a five-year renewal of the National Flood Insurance Program (“NFIP”) and effected substantial reforms in the program. The NFIP had not been subject to a long-term renewal since 2004. Among other things, pursuant to this statute, the Federal Emergency Management Agency (“FEMA”) is explicitly authorized to carry out initiatives to determine the capacity of private insurers, reinsurers, and financial markets to assume a greater portion of the flood risk exposure in the U.S., and to assess the capacity of the private reinsurance market to assume some of the program's risk. FEMA is required to submit a report on this assessment within six months of enactment. The bill also increased the annual limitation on program premium increases from 10% to 20% of the average of the risk premium rates for certain properties concerned; established a four-year phase-in, after the first year, in annual 20% increments, of full actuarial rates for a newly mapped risk premium rate area; instructed FEMA to establish new flood insurance rate maps; allows multi-family properties to purchase NFIP polices; and introduces minimum deductibles for flood claims. We believe that these reforms could increase the role of private risk-bearing capital in respect of U.S. flood perils, perhaps significantly. However, we cannot assure you that the bill will materially benefit private carriers, or that we will succeed in participating in any positive market developments that may transpire.

In 2007, the State of Florida enacted legislation to expand the Florida Hurricane Catastrophe Fund's (“FHCF”) provision of below-market rate reinsurance to up to $28.0 billion per season (the “2007 Florida Bill”). In May of 2009, the Florida legislature enacted Bill No. CS/HB 1495 (the “2009 Bill”), which will gradually phase out $12.0 billion in optional reinsurance coverage under the FHCF over the succeeding five years. The 2009 Bill similarly allows the state-sponsored property insurer, Citizens Property Insurance Corporation ("Citizens"), to raise its rates up to 10% starting in 2010 and every year thereafter, until such time that it has sufficient funds to pay its claims and expenses.  For 2012, Citizens' rates will increase a statewide average of 6.2%.  The rate increases and cut back on coverage by FHCF and Citizens are expected to support, over time, a relatively increased role of the private insurers in Florida, a market in which we have established substantial market share.

In May 2011, the Florida legislature passed Florida Senate bill 408 (“SB 408”), relating principally to property insurance. Among other things, SB 408 requires an increase in minimum capital and surplus for newly licensed Florida domestic insurers from $5.0 million to $15.0 million; institutes a 3-year claims filing deadline for new and reopened claims from the date of a hurricane or windstorm; allows an insurer to offer coverage where replacement cost value is paid, but initial payment is limited to actual cash value; allows admitted insurers to seek rate increases up to 15% to adjust for third party reinsurance costs; and institutes a range of reforms relating to various matters that have increased the costs of insuring sinkholes in Florida.

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While we believe SB 408 should contribute over time to stabilization of the Florida market, legislation intended to further reform and stabilize Citizens was not passed in the 2011 or 2012 legislative sessions.

On February 16, 2012, the Florida Senate Banking and Insurance Committee approved, with one dissenting vote, legislation to reform the FHCF and solidify its financial fund. The bill provided for incremental reductions in the FHCF limit which admitted carriers are mandated to buy from the FHCF from an industry aggregate of $17.0 billion to $12.0 billion by 2015; would have reduced the 90% purchase option (the percentage of the FHCF mandatory coverage layer a company purchases) which is selected by most insurers to 75% by 2015; and would have increased the industry wide "retention", or deductible, from $7.3 to $8.0 billion. While the bill did not pass the full legislature in 2012, its sponsor has announced an intention to reintroduce the legislation in 2013. We cannot estimate the likelihood of enactment, or the possible final form of this or similar legislation.

We believe the 2007 Florida Bill caused a substantial decline in the private reinsurance and insurance markets in and relating to Florida, and contributed to the ongoing instability in the Florida primary insurance market, where many insurers have reported substantial and continuing losses from 2009 through 2011, an unusually low period for catastrophe losses in the state. Because of our position as one of the largest providers of catastrophe-exposed coverage, both on a global basis and in respect of the Florida market, the 2007 Florida Bill and the weakened financial position of Florida insurers may have a disproportionate adverse impact on us compared to other reinsurance market participants. The advent of a large windstorm, or of multiple smaller storms, could challenge the assessment-based claims paying capacity of Citizens and the FHCF. In May 2012, the FHCF Advisory Council approved official bonding capacity estimates in respect of the current contract year, reflecting the amount of post-catastrophe bonding currently estimated to be achievable by the FHCF's management and lead financial advisor.  The FHCF projected a 2012 year-end fund balance of approximately $8.5 billion, and a total bonding capacity estimate of $7.0 billion; given the FHCF's total potential claims-paying obligation of $17.3 billion, this estimated claims-paying capacity of approximately $15.6 billion was therefore estimated by the FHCF's lead adviser to reflect a potential shortfall of $1.8 billion in respect of an initial season or event.  Any inability, or delay, in the claims paying ability of these entities or of private market participants could further weaken or destabilize the Florida market, potentially giving rise to an unpredictable range of adverse impacts. The FHCF and the Florida Office of Insurance Regulation ("OIR") have each estimated that even partial failure, or deferral, of the FHCF's ability to pay claims in full could substantially weaken numerous private insurers, with the OIR having estimated that a 25% shortfall in the FHCF's claims-paying capacity could cause as many as 24 of the top 50 insurers in the state to have less than the statutory minimum surplus of $5.0 million, with such insurers representing approximately 35% of the market based on premium volume, or approximately 2.2 million policies. Adverse market, regulatory or legislative changes impacting Florida could affect our ability to sell certain of our products, to collect premiums we may be owed on policies we have already written, to renew business with our customers for future periods, or have other adverse impacts, some of which may be difficult to foresee, and could therefore have a material adverse effect on our operations.

Internationally, in the wake of the large natural catastrophes in 2011 a number of proposals have been introduced to alter the financing of natural catastrophes in several of the markets in which we operate. For example, the Thailand government has announced it is studying proposals for a natural catastrophe fund, under which the government would provide coverage for natural disasters in excess of an industry retention and below a certain limit, after which private reinsurers would continue to participate. The government of the Philippines has announced that it is considering similar proposals. A range of proposals from varying stakeholders have been reported to have been made to alter the current regimes for insuring flood risk in the U.K., flood risk in Australia and earthquake risk in New Zealand. If these proposals are enacted and reduce market opportunities for our clients or for the reinsurance industry, we could be adversely impacted.

Over the past few years the U.S. Congress has considered legislation which, if passed, would deny U.S. insurers and reinsurers the deduction for reinsurance placed with non-U.S. affiliates. In February 2012, the Obama administration included a formal proposal for such a provision in its budget proposal. As described in the administration's 2012 budget request, the proposal would deny an insurance company a deduction for premiums and other amounts paid to affiliated foreign companies with respect to reinsurance of property and casualty risks to the extent that the foreign reinsurer (or its parent company) is not subject to U.S. income tax with respect to the premiums received; and would exclude from the insurance company's income (in the same proportion in which the premium deduction was denied) any return premiums, ceding commissions, reinsurance recovered, or other amounts received with respect to reinsurance policies for

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which a premium deduction is wholly or partially denied. We believe that the passage of such legislation could adversely affect the reinsurance market broadly and potentially impact our own current or future operations in particular.

On February 7, 2012, U.S. Senators Carl Levin and Kent Conrad introduced legislation in the U.S. Senate entitled the “Cut Unjustified Loopholes Act” (S. 2075). Senator Levin introduced similar legislation in 2011 and 2010. If enacted, this legislation would, among other things, cause to be treated as a U.S. corporation for U.S. tax purposes generally, certain corporate entities if the “management and control” of such a corporation is, directly or indirectly, treated as occurring primarily within the U.S. The proposed legislation provides that a corporation will be so treated if substantially all of the executive officers and senior management of the corporation who exercise day-to-day responsibility for making decisions involving strategic, financial, and operational policies of the corporation are located primarily within the U.S. To date, this legislation has not been approved by either the House of Representatives or the Senate. However, we can provide no assurance that this legislation or similar legislation will not ultimately be adopted. While we do not believe that the legislation would impact us, it is possible that an adopted bill would include additional or expanded provisions which could negatively impact us, or that the interpretation or enforcement of the current proposal, if enacted, would be more expansive or adverse than we currently estimate.

NOTE ON FORWARD-LOOKING STATEMENTS

This Form 10-Q contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Forward-looking statements are necessarily based on estimates and assumptions that are inherently subject to significant business, economic and competitive uncertainties and contingencies, many of which, with respect to future business decisions, are subject to change. These uncertainties and contingencies can affect actual results and could cause actual results to differ materially from those expressed in any forward-looking statements made by, or on behalf of, us.

In particular, statements using words such as “may”, “should”, “estimate”, “expect”, “anticipate”, “intends”, “believe”, “predict”, “potential”, or words of similar import generally involve forward-looking statements. For example, we may include certain forward-looking statements in “Management's Discussion and Analysis of Financial Condition and Results of Operations” with regard to trends in results, prices, volumes, operations, investment results, margins, combined ratios, reserves, market conditions, risk management and exchange rates. This Form 10-Q also contains forward-looking statements with respect to our business and industry, such as those relating to our strategy and management objectives, market standing and product volumes, insured losses from loss events, government initiatives and regulatory matters affecting the reinsurance and insurance industries.

In light of the risks and uncertainties inherent in all future projections, the inclusion of forward-looking statements in this report should not be considered as a representation by us or any other person that our objectives or plans will be achieved. Numerous factors could cause our actual results to differ materially from those addressed by the forward-looking statements, including the following:

• we are exposed to significant losses from catastrophic events and other exposures that we cover, which we expect to cause significant volatility in our financial results from time to time;

• the frequency and severity of catastrophic events or other events which we cover could exceed our estimates and cause losses greater than we expect;

• the risk of the lowering or loss of any of the ratings of RenaissanceRe or of one or more of our subsidiaries or changes in the policies or practices of the rating agencies;  

• risks associated with appropriately modeling, pricing for, and contractually addressing new or potential factors in loss emergence, such as the trend toward potentially significant global warming and other aspects of climate change which have the potential to adversely affect our business, which could cause us to underestimate our exposures and potentially adversely impact our financial results;

• risks due to our dependence on a few insurance and reinsurance brokers for the preponderance of our revenue, a risk we believe is increasing as a larger portion of our business is provided by a small number of these brokers;

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• the risk that our customers may fail to make premium payments due to us (a risk that we believe has increased in certain of our key markets), as well as the risk of failures of our reinsurers, brokers or other counterparties to honor their obligations to us, including as regards to the large catastrophic events of 2010 and 2011, and also including their obligations to make third party payments for which we might be liable;

• we operate in a highly competitive environment, which we expect to increase over time from new competition from traditional and non-traditional participants, particularly as capital markets products provide alternatives and replacements for our more traditional reinsurance and insurance products, as new entrants or existing competitors attempt to replicate our business model, and as a result of consolidation in the (re)insurance industry;

• the inherent uncertainties in our reserving process, particularly as regards the large catastrophic events of 2010 and 2011, and also including those related to the 2005 and 2008 catastrophes, which uncertainties could increase as the product classes we offer evolve over time;

• risks relating to adverse legislative developments that could reduce the size of the private markets we serve, or impede their future growth, including proposals to shift U.S. catastrophe risks to federal mechanisms; similar proposals at the state level in the U.S., including the risk of new legislation in Florida to expand the reinsurance coverages offered by the FHCF and the insurance policies written by state-sponsored Citizens, or failing to implement reforms to reduce such coverages; and the risk that new legislation will be enacted in the international markets we serve which might reduce market opportunities in the private sector, weaken our customers or otherwise adversely impact us;

• risks relating to the inability, or delay, in the claims paying ability of Citizens, FHCF or of private market participants in Florida, particularly following a large windstorm or of multiple smaller storms, which we believe would further weaken or destabilize the Florida market and give rise to an unpredictable range of impacts which might be adverse, perhaps materially so;

• changes in insurance regulations in the U.S. or other jurisdictions in which we operate, including risks arising out of the Dodd-Frank Act or its related rule making or implementation;

• the risk of potential challenges to the Company's claim of exemption from insurance regulation under certain current laws and the risk of increased global regulation of the insurance and reinsurance industry;

• the passage of federal or state legislation subjecting Renaissance Reinsurance or our other Bermuda subsidiaries to supervision, regulation or taxation in the U.S. or other jurisdictions in which we operate, or increasing the taxation of business ceded to us;

• a contention by the Internal Revenue Service that Renaissance Reinsurance, or any of our other Bermuda subsidiaries, is subject to U.S. taxation;

• risks associated with implementing our business strategies and initiatives, including risks related to developing or enhancing the operations, controls and other infrastructure necessary in respect of our more recent, new or proposed initiatives;

• the risk that there could be regulatory or legislative changes adversely impacting us, as a Bermuda-based company, relative to our competitors, or actions taken by multinational organizations having such an impact;

• risks associated with highly subjective judgments, such as valuing our more illiquid assets, and determining the impairments taken on our investments, which could impact our financial position or operating results;

• risks associated with our investment portfolio, including the risk that investment managers may breach our investment guidelines, or the inability of such guidelines to mitigate risks arising out of the ongoing period of relative economic weakness;

• risks associated with inflation, which could cause loss costs to increase, and impact the performance of our investment portfolio, thereby adversely impacting our financial position or operating results;

• the risk we might be bound to policyholder obligations beyond our underwriting intent, including due to emerging claims and coverage issues;

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• risks associated with counterparty credit risk, including with respect to reinsurance brokers, customers, agents, retrocessionaires, capital providers, parties associated with our investment portfolio and/or our energy trading business, and premiums and other receivables owed to us, which risks we believe continue to be heightened as a result of the ongoing period of relative economic weakness;

• loss of services of any one of our key senior officers, or difficulties associated with the transition of new members of our senior management team;

• risks associated with our increased allocation of capital to our weather and energy risk management operations, including the risks that these operations may give rise to unforeseen or unanticipated losses;

• the risk that ongoing or future industry regulatory developments will disrupt our business, or that of our business partners, or mandate changes in industry practices in ways that increase our costs, decrease our revenues or require us to alter aspects of the way we do business;

• acts of terrorism, war or political unrest;

• risks that the advent of the new U.S. Federal Insurance Office or other related developments may adversely impact our business, or significantly increase our operating costs;

• operational risks, including system or human failures;

• risks in connection with our management of third party capital;

• changes in economic conditions, including interest rate, currency, equity and credit conditions which could affect our investment portfolio or declines in our investment returns for other reasons which could reduce our profitability and hinder our ability to pay claims promptly in accordance with our strategy, which risks we believe are currently enhanced in light of the ongoing period of relative economic weakness, both globally, particularly in respect of Eurozone countries and companies, and in the U.S.;

• the impact of the perceived inability of the U.S. to continue to pay its debt obligations when due, including the downgrade of U.S. government securities by Standard & Poor's, and the resulting effect on the value of securities in our investment portfolio as well as the uncertainty in the market generally;

• risks relating to failure to comply with covenants in our debt agreements;

• risks relating to the inability of our operating subsidiaries to declare and pay dividends to RenaissanceRe;

• risks that we may require additional capital in the future, particularly after a catastrophic event or to support potential growth opportunities in our business, which may not be available or may be available only on unfavorable terms;

• risks that certain of our new or potentially expanding business lines could have a significant negative impact on our financial results or cause significant volatility in our results for any particular period, including risks relating to our weather and energy risk operations, whose results may be more volatile than we estimate;

• risks arising out of possible changes in the distribution or placement of risks due to increased consolidation of customers or insurance and reinsurance brokers, or from potential changes in their business practices which may be required by future regulatory changes; and

• risks relating to changes in regulatory regimes and/or accounting rules, which could result in significant changes to our financial results, including but not limited to, the European Union directive concerning capital adequacy, risk management and regulatory reporting for insurers.

The factors listed above should not be construed as exhaustive. Certain of these risk factors and others are described in more detail from time to time in our filings with the SEC. We undertake no obligation to release publicly the results of any future revisions we may make to forward-looking statements to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

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ITEM 3.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are principally exposed to five types of market risk: interest rate risk; foreign currency risk; credit risk; energy and weather-related risk; and equity price risk. The Company’s investment guidelines permit, subject to approval, investments in derivative instruments such as futures, options, foreign currency forward contracts and swap agreements, which may be used to assume risks or for hedging purposes. See the Company’s Form 10-K for the fiscal year ended December 31, 2011 for additional information related to the Company’s exposure to these risks.

ITEM 4.    CONTROLS AND PROCEDURES

Disclosure Controls and Internal Controls: We have designed various disclosure controls and procedures (as defined in Rules 13a-15(e) and Rule 15d-15(e) under the Exchange Act), to help ensure that information required to be disclosed in our periodic Exchange Act reports, such as this quarterly report, is recorded, processed, summarized and reported on a timely and accurate basis. Our disclosure controls and procedures are also designed with the objective of ensuring that such information is accumulated and communicated to our senior management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure. Our internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles and includes those policies and procedures that: (1) pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of the assets of the issuer; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the issuer are being made only in accordance with authorizations of management and directors of the issuer; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the Company's assets that could have a material effect on the financial statements.

Limitations on the Effectiveness of Controls: Our Board of Directors and management, including our Chief Executive Officer and Chief Financial Officer, do not expect that our disclosure controls and procedures or internal control over financial reporting will prevent all errors and all fraud. Controls, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the controls are met. Further, we believe that the design of prudent controls must reflect appropriate resource constraints, such that the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all controls, there can be no absolute assurance that all control issues and instances of fraud, if any, applicable to us have been or will be detected. These inherent limitations include the realities that judgments in decision-making can be faulty, and that breakdowns can occur because of simple errors or mistakes. Additionally, controls can be circumvented by the individual acts of some individuals, by collusion of more than one person, or by management override of the control. The design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions; over time, controls may become inadequate because of changes in conditions, or the degree of compliance with the policies or procedures may deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

Evaluation: An evaluation was performed under the supervision and with the participation of the Company's management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the Company's disclosure controls and procedures as required by Rules 13a-15(b) and 15d-15(b) of the Exchange Act. Based upon that evaluation, the Company's management, including our Chief Executive Officer and Chief Financial Officer, concluded that, at June 30, 2012, the Company's disclosure controls and procedures were effective at the reasonable assurance level in ensuring that information required to be disclosed in Company reports filed under the Exchange Act is (i) recorded, processed, summarized and reported within the time periods specified in the SEC rules and forms and (ii) accumulated and communicated to management, including the Company's Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure. There has been no change in the Company's internal control over financial reporting during the three months ended June 30, 2012 that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting.

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PART II - OTHER IFORMATION

ITEM 1.    LEGAL PROCEEDINGS

There are no material changes from the legal proceedings previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2011.

We and our subsidiaries are subject to lawsuits and regulatory actions in the normal course of business that do not arise from or directly relate to claims on reinsurance treaties or contracts or direct surplus lines insurance policies.  This category of business litigation may involve allegations of underwriting or claims-handling errors or misconduct, employment claims, regulatory actions or disputes arising from our business ventures.  Our operating subsidiaries are subject to claims litigation involving disputed interpretations of policy coverages.  Generally, our direct surplus lines insurance operations are subject to greater frequency and diversity of claims and claims-related litigation than our reinsurance operations and, in some jurisdictions, may be subject to direct actions by allegedly injured persons or entities seeking damages from policyholders.  These lawsuits, involving claims on policies issued by our subsidiaries which are typical to the insurance industry in general and in the normal course of business, are considered in its loss and loss expense reserves which are discussed in its loss reserves discussion.  In addition, we may from time to time engage in litigation or arbitration related to claims for payment in respect of ceded reinsurance.  Any such litigation or arbitration contains an element of uncertainty, and we believe the inherent uncertainty in such matters may have increased recently and will likely continue to increase. Currently, we believe that no individual litigation or arbitration to which we are presently a party is likely to have a material adverse effect on our financial condition, business or operations.

ITEM 1A.    RISK FACTORS

There are no material changes from the risk factors previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2011.

ITEM 2.    UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

The Company’s share repurchase program may be effected from time to time, depending on market conditions and other factors, through open market purchases and privately negotiated transactions. On February 22, 2012, the Company approved an increase in its authorized share repurchase program to an aggregate amount of $500.0 million. Unless terminated earlier by resolution of the Company’s Board of Directors, the program will expire when the Company has repurchased the full value of the shares authorized. The table below details the repurchases that were made under the program during the three months ended June 30, 2012, and also includes other shares purchased which represents withholdings from employees surrendered in respect of withholding tax obligations on the vesting of restricted stock, or in lieu of cash payments for the exercise price of employee stock options.

	Total shares purchased			Other shares purchased			Shares purchased under repurchase program			Dollar amount  still available under repurchase program
	Shares purchased	Average price per share		Shares purchased	Average price per share		Shares purchased	Average price per share
										(in millions)
Beginning dollar amount available to be repurchased										$	500.0
April 1 - 30, 2012	—	$	—	—	$	—	—	$	—	—
May 1 - 31, 2012	160,042	$	76.84	1,514	$	79.74	158,528	$	76.81	(12.2		)
June 1 - 30, 2012	1,019,539	$	74.36	—	$	—	1,019,539	$	74.36	(75.8		)
Total	1,179,581	$	74.70	1,514	$	79.74	1,178,067	$	74.69	$	412.0

In the future, the Company may adopt additional trading plans or authorize purchase activities under the remaining authorization, which the Board may increase in the future. Subsequent to June 30, 2012 and through the period ending July 30, 2012, the Company has repurchased approximately 71 thousand common shares in open market transactions at an aggregate cost of $5.3 million and at an average share price of $74.21.

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ITEM 3.    DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4.    MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5.    OTHER INFORMATION

None.

ITEM 6.    EXHIBITS

10.1    Credit Agreement, dated as of May 17, 2012, by and among RenaissanceRe Holdings Ltd., various banks and financial institutions parties thereto, Wells Fargo Bank, National Association, as Fronting Bank, LC Administrator and Administrative Agent for the Lenders, Citibank, N.A., as Syndication Agent, and Wells Fargo Securities, LLC and Citigroup Global Markets Inc., as Joint Lead Arrangers and Joint Lead Bookrunners. (1)

10.2    Fourth Amended and Restated Reimbursement Agreement, dated as of May 17, 2012, by and among RenaissanceRe Holdings Ltd., Renaissance Reinsurance Ltd., Renaissance Reinsurance of Europe, Glencoe Insurance Ltd., DaVinci Reinsurance Ltd., the banks and financial institutions parties thereto, Wells Fargo Bank, National Association, as issuing bank, administrative agent and collateral agent for the lenders, and certain other agents. (1)

31.1 Certification of Neill A. Currie, Chief Executive Officer of RenaissanceRe Holdings Ltd., pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934, as amended.

31.2 Certification of Jeffrey D. Kelly, Chief Financial Officer of RenaissanceRe Holdings Ltd., pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934, as amended.

32.1 Certification of Neill A. Currie, Chief Executive Officer of RenaissanceRe Holdings Ltd., pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

32.2 Certification of Jeffrey D. Kelly, Chief Financial Officer of RenaissanceRe Holdings Ltd., pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

101.INS XBRL Instance Document

101.SCH XBRL Taxonomy Extension Schema Document

101.CAL XBRL Taxonomy Extension Calculation Linkbase Document

101.LAB XBRL Taxonomy Extension Label Linkbase Document

101.PRE XBRL Taxonomy Extension Presentation Linkbase Document

101.DEF XBRL Taxonomy Extension Definition Linkbase Document

(1) Incorporated by reference to RenaissanceRe Holdings Ltd.'s Current Report on Form 8-K, filed with the Commission on May 22, 2012. 

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed by the undersigned thereunto duly authorized.

RENAISSANCERE HOLDINGS LTD.

Signature	Title	Date
/s/ Jeffrey D. Kelly	Executive Vice President, Chief Financial Officer	August 1, 2012
Jeffrey D. Kelly
/s/ Mark A. Wilcox	Senior Vice President, Corporate Controller and Chief Accounting Officer	August 1, 2012
Mark A. Wilcox

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EX-31.1

Exhibit 31.1

CERTIFICATION

I, Neill A. Currie, certify that:

1. I have reviewed this Form 10-Q of RenaissanceRe Holdings Ltd.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial
reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	August 1, 2012	/s/ Neill A. Currie
		Neill A. Currie
		Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Jeffrey D. Kelly, certify that:

1. I have reviewed this Form 10-Q of RenaissanceRe Holdings Ltd.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered
by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial
reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board
of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

Date:	August 1, 2012	/s/ Jeffrey D. Kelly
		Jeffrey D. Kelly
		Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Form 10-Q of RenaissanceRe Holdings Ltd. (the “Company”) for the fiscal quarter ended June 30, 2012, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Neill A. Currie, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Neill A. Currie

Neill A. Currie

Chief Executive Officer

August 1, 2012

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Form 10-Q of RenaissanceRe Holdings Ltd. (the “Company”) for the fiscal quarter ended June 30, 2012, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Jeffrey D. Kelly, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Jeffrey D. Kelly

Jeffrey D. Kelly

Chief Financial Officer

August 1, 2012

XML

Investments (Schedule Of Fixed Maturity Investments Available For Sale In Continual Unrealized Loss Position) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Available For Sale Securities, Continuous Unrealized Loss Position	44
Available For Sale Securities, Continuous Unrealized Loss Position, Twelve Months Or Longer	13
Fixed maturity investments [Member]
Less than 12 Months, Fair Value	$ 1,424	$ 12,874
Less than 12 Months, Unrealized Losses	(49)	(618)
12 Months or Greater, Fair Value	611	1,707
12 Months or Greater, Unrealized Losses	(80)	(196)
Total, Fair Value	2,035	14,581
Total, Unrealized Losses	(129)	(814)
Non-U.S. government (Sovereign Debt) [Member]
Less than 12 Months, Fair Value		915
Less than 12 Months, Unrealized Losses		(9)
12 Months or Greater, Fair Value		42
12 Months or Greater, Unrealized Losses		(3)
Total, Fair Value		957
Total, Unrealized Losses		(12)
Corporate [Member]
Less than 12 Months, Fair Value	1,424	3,935
Less than 12 Months, Unrealized Losses	(49)	(385)
12 Months or Greater, Fair Value	513	412
12 Months or Greater, Unrealized Losses	(61)	(132)
Total, Fair Value	1,937	4,347
Total, Unrealized Losses	(110)	(517)
Non-agency mortgage-backed [Member]
Less than 12 Months, Fair Value	0	8,024
Less than 12 Months, Unrealized Losses	0	(224)
12 Months or Greater, Fair Value	98	798
12 Months or Greater, Unrealized Losses	(19)	(60)
Total, Fair Value	98	8,822
Total, Unrealized Losses	(19)	(284)
Commercial mortgage-backed [Member]
Less than 12 Months, Fair Value		0
Less than 12 Months, Unrealized Losses		0
12 Months or Greater, Fair Value		455
12 Months or Greater, Unrealized Losses		(1)
Total, Fair Value		455
Total, Unrealized Losses		$ (1)

XML

Segment Reporting (Schedule Of Significant Components Of The Company's Revenues And Expenses) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012		Jun. 30, 2011
Gross premiums written	$ 667,336,000	$ 641,563,000	$ 1,331,487,000		$ 1,252,068,000
Net premiums written	427,630,000	427,995,000	920,205,000		880,570,000
Net premiums earned	244,416,000	217,175,000	523,081,000		522,716,000
Net claims and claim expenses incurred	49,551,000	151,261,000	65,103,000		779,798,000
Acquisition expenses	25,608,000	13,883,000	49,719,000		46,218,000
Operational expenses	41,407,000	42,299,000	83,790,000		84,129,000
Underwriting income (loss)	127,850,000	9,732,000	324,469,000		(387,429,000)
Net investment income	14,743,000	33,328,000	81,714,000		93,609,000
Net foreign exchange gains (losses)	2,410,000	(4,521,000)	950,000		(3,861,000)
Equity in earnings (losses) of other ventures	6,846,000	5,128,000	12,316,000		(18,625,000)
Other income (loss)	11,289,000	(5,167,000)	(27,805,000)		44,978,000
Net realized and unrealized gains on investments	31,003,000	34,979,000	77,116,000		29,765,000
Net other-than-temporary impairments	(209,000)	0	(343,000)		0
Corporate expenses	(4,067,000)	(4,011,000)	(8,878,000)		(6,075,000)
Interest expense	(5,716,000)	(5,730,000)	(11,434,000)		(11,925,000)
Income from continuing operations before taxes	184,149,000	63,738,000	448,105,000		(259,563,000)
Income tax expense	(898,000)	1,773,000	(861,000)		1,825,000
Income (loss) from discontinued operations	1,393,000	(10,094,000)	1,220,000		(11,620,000)
Net (income) loss attributable to noncontrolling interests	(33,624,000)	(21,903,000)	(87,265,000)		63,589,000
Dividends on preference shares	(8,750,000)	(8,750,000)	(17,500,000)		(17,500,000)
Net income (loss) available (attributable) to RenaissanceRe common shareholders	142,270,000	24,764,000	343,699,000		(223,269,000)
Net claims and claim expenses incurred - current accident year	94,997,000	171,932,000	166,421,000		868,629,000
Net claims and claim expenses incurred - prior accident years	(45,446,000)	(20,671,000)	(101,318,000)		(88,831,000)
Net claims and claim expenses incurred - total	49,551,000	151,261,000	65,103,000		779,798,000
Net claims and claim expense ratio - current accident year	38.90%	79.20%	31.80%		166.20%
Net claims and claim expense ratio - prior accident years	(18.60%)	(9.60%)	(19.40%)		(17.00%)
Net claims and claim expense ratio - calendar year	20.30%	69.60%	12.40%		149.20%
Underwriting expense ratio	27.40%	25.90%	25.60%		24.90%
Combined ratio	47.70%	95.50%	38.00%		174.10%
Reinsurance [Member]
Gross premiums written	617,039,000	607,404,000	1,226,801,000		1,181,086,000
Net premiums written	379,369,000	395,856,000	838,007,000		819,422,000
Net premiums earned	214,296,000	199,461,000	468,114,000		488,890,000
Net claims and claim expenses incurred	35,488,000	143,219,000	43,812,000		738,623,000
Acquisition expenses	20,098,000	10,431,000	39,484,000		40,223,000
Operational expenses	30,346,000	32,901,000	62,390,000		65,264,000
Underwriting income (loss)	128,364,000	12,910,000	322,428,000		(355,220,000)
Net claims and claim expenses incurred - current accident year	76,631,000	162,398,000	131,775,000		829,760,000
Net claims and claim expenses incurred - prior accident years	(41,143,000)	(19,179,000)	(87,963,000)		(91,137,000)
Net claims and claim expenses incurred - total	35,488,000	143,219,000	43,812,000		738,623,000
Net claims and claim expense ratio - current accident year	35.80%	81.40%	28.20%		169.70%
Net claims and claim expense ratio - prior accident years	(19.20%)	(9.60%)	(18.80%)		(18.60%)
Net claims and claim expense ratio - calendar year	16.60%	71.80%	9.40%		151.10%
Underwriting expense ratio	23.50%	21.70%	21.70%		21.60%
Combined ratio	40.10%	93.50%	31.10%		172.70%
Lloyd's [Member]
Gross premiums written	50,297,000	34,126,000	105,114,000		70,746,000
Net premiums written	48,510,000	32,084,000	82,447,000		60,821,000
Net premiums earned	30,369,000	17,233,000	55,191,000		32,907,000
Net claims and claim expenses incurred	14,960,000	8,619,000	23,961,000		39,142,000
Acquisition expenses	5,510,000	3,305,000	10,178,000		5,766,000
Operational expenses	10,806,000	8,635,000	20,863,000		17,607,000
Underwriting income (loss)	(907,000)	(3,326,000)	189,000		(29,608,000)
Net claims and claim expenses incurred - current accident year	18,366,000	9,612,000	34,646,000		38,938,000
Net claims and claim expenses incurred - prior accident years	(3,406,000)	(993,000)	(10,685,000)		204,000
Net claims and claim expenses incurred - total	14,960,000	8,619,000	23,961,000		39,142,000
Net claims and claim expense ratio - current accident year	60.50%	55.80%	62.80%		118.30%
Net claims and claim expense ratio - prior accident years	(11.20%)	(5.80%)	(19.40%)		0.60%
Net claims and claim expense ratio - calendar year	49.30%	50.00%	43.40%		118.90%
Underwriting expense ratio	53.70%	69.30%	56.30%		71.10%
Combined ratio	103.00%	119.30%	99.70%		190.00%
Insurance [Member]
Gross premiums written	0	33,000	0		313,000
Net premiums written	(249,000)	55,000	(249,000)		327,000
Net premiums earned	(249,000)	481,000	(224,000)		919,000
Net claims and claim expenses incurred	(897,000)	(577,000)	(2,670,000)		2,033,000
Acquisition expenses	0	147,000	57,000		229,000
Operational expenses	255,000	763,000	537,000		1,258,000
Underwriting income (loss)	393,000	148,000	1,852,000		(2,601,000)
Net claims and claim expenses incurred - current accident year	0	(78,000)	0		(69,000)
Net claims and claim expenses incurred - prior accident years	(897,000)	(499,000)	(2,670,000)		2,102,000
Net claims and claim expenses incurred - total	(897,000)	(577,000)	(2,670,000)		2,033,000
Net claims and claim expense ratio - current accident year	0.00%	(16.20%)	0.00%		(7.50%)
Net claims and claim expense ratio - prior accident years	360.20%	(103.80%)	1192.00%		228.70%
Net claims and claim expense ratio - calendar year	360.20%	(120.00%)	1192.00%		221.20%
Underwriting expense ratio	(102.40%)	189.20%	(265.20%)		161.80%
Combined ratio	257.80%	69.20%	926.80%		383.00%
Eliminations [Member]
Gross premiums written			(428,000)	[1]	(77,000)	[2]
Other [Member]
Gross premiums written	0	0	0		0
Net premiums written	0	0	0		0
Net premiums earned	0	0	0		0
Net claims and claim expenses incurred	0	0	0		0
Acquisition expenses	0	0	0		0
Operational expenses	0	0	0		0
Underwriting income (loss)	0	0	0		0
Net investment income	14,743,000	33,328,000	81,714,000		93,609,000
Net foreign exchange gains (losses)	2,410,000	(4,521,000)	950,000		(3,861,000)
Equity in earnings (losses) of other ventures	6,846,000	5,128,000	12,316,000		(18,625,000)
Other income (loss)	11,289,000	(5,167,000)	(27,805,000)		44,978,000
Net realized and unrealized gains on investments	31,003,000	34,979,000	77,116,000		29,765,000
Net other-than-temporary impairments	(209,000)		(343,000)
Corporate expenses	(4,067,000)	(4,011,000)	(8,878,000)		(6,075,000)
Interest expense	(5,716,000)	(5,730,000)	(11,434,000)		(11,925,000)
Income tax expense	(898,000)	1,773,000	(861,000)		1,825,000
Income (loss) from discontinued operations	1,393,000	(10,094,000)	1,220,000		(11,620,000)
Net (income) loss attributable to noncontrolling interests	(33,624,000)	(21,903,000)	(87,265,000)		63,589,000
Dividends on preference shares	(8,750,000)	(8,750,000)	(17,500,000)		(17,500,000)
Intersegment Elimination, Reinsurance Segment To Lloyds Segment Member
Gross premiums ceded from segment to segment			$ 400,000		$ 100,000

[1] Represents $0.4 million of gross premiums ceded from the Reinsurance segment to the Lloyd’s segment.

[2] Represents $0.1 million of gross premiums ceded from the Reinsurance segment to the Lloyd’s segment.

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Noncontrolling Interests (Schedule Of Redeemable Noncontrolling Interest) (Details) (USD $)			0 Months Ended		3 Months Ended		6 Months Ended					0 Months Ended	6 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Jun. 01, 2012 DaVinciRe [Member]	Jun. 01, 2011 DaVinciRe [Member]	Jun. 30, 2012 DaVinciRe [Member]	Jun. 30, 2011 DaVinciRe [Member]	Jun. 30, 2012 DaVinciRe [Member]	Jun. 30, 2011 DaVinciRe [Member]	Jan. 02, 2012 DaVinciRe [Member]	Dec. 31, 2011 DaVinciRe [Member]	Jan. 02, 2012 DaVinciRe [Member] Retroactive Adjustment [Member]	Jan. 02, 2012 DaVinciRe [Member] Redeemable Noncontrolling Interest Member	Jun. 30, 2012 DaVinciRe [Member] Redeemable Noncontrolling Interest Member	Jun. 01, 2012 DaVinciRe [Member] Redeemable Noncontrolling Interest Member	Jun. 30, 2012 DaVinciRe [Member] Redeemable Noncontrolling Interest Member Notice Submitted in Advance of Deadline [Member]	Jan. 02, 2012 DaVinciRe [Member] Redeemable Noncontrolling Interest Member Notice Submitted in Advance of Deadline [Member]	Dec. 31, 2011 DaVinciRe [Member] Redeemable Noncontrolling Interest Member Notice Submitted in Advance of Deadline [Member]	Jun. 30, 2012 DaVinciRe [Member] Redeemable Noncontrolling Interest Member Maximum [Member]
Redeemable Noncontrolling Interest [Line Items]
Parent company ownership in redeemable noncontrolling interest				42.80%	31.50%		31.50%		34.70%	42.80%	31.50%
Redemption rights, percentage of aggregate shares held, maximum													50.00%
Share repurchase requests, limit																		25.00%
Redeemable Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests, Reserve Holdback			$ 5,000,000									$ 10,000,000		$ 2,500,000		$ 4,900,000	$ 1,800,000
Sale of shares to redeemable noncontrolling interest			49,300,000	100,000,000	70,501,000	70,000,000	156,169,000	70,000,000
Sale of parent equity to third party			24,700,000
Sale of third party equity to another third party			24,700,000
Proceeds from equity raised			49,400,000
Equity raised from parent				30,000,000
Proceeds from sale of partial interest in consolidated subsidiary												98,900,000
Activity in redeemable noncontrolling interest
Balance, Beginning	900,878,000	657,727,000			796,743,000	536,717,000	657,727,000	757,655,000							50,000,000		9,200,000
Net purchase of shares from redeemable noncontrolling interests					0	(446,000)	0	(135,618,000)
Comprehensive income:
Net income (loss) attributable to redeemable noncontrolling interest					33,634,000	21,733,000	86,982,000	(64,030,000)
Other comprehensive loss attributable to redeemable noncontrolling interest					0	(3,000)	0	(6,000)
Balance, Ending	$ 900,878,000	$ 657,727,000			$ 900,878,000	$ 628,001,000	$ 900,878,000	$ 628,001,000							$ 50,000,000		$ 9,200,000

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Derivative Instruments (Narrative) (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended		0 Months Ended											3 Months Ended		6 Months Ended		0 Months Ended		6 Months Ended			6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jan. 20, 2011 Platinum [Member]	Jun. 30, 2012 Interest Rate Contract [Member]	Dec. 31, 2011 Interest Rate Contract [Member]	Jun. 30, 2012 Foreign Currency Forward Contracts, Underwriting and Non-investment Operations [Member]	Dec. 31, 2011 Foreign Currency Forward Contracts, Underwriting and Non-investment Operations [Member]	Jun. 30, 2012 Foreign Currency Forward Contracts, Investment Operations [Member]	Dec. 31, 2011 Foreign Currency Forward Contracts, Investment Operations [Member]	Jun. 30, 2012 Foreign Currency Forward Contracts, Energy And Risk Operations [Member]	Dec. 31, 2011 Foreign Currency Forward Contracts, Energy And Risk Operations [Member]	Jun. 30, 2012 Credit Risk Contract [Member]	Dec. 31, 2011 Credit Risk Contract [Member]	Jun. 30, 2012 Energy And Weather Contracts [Member] Other (Loss) Income [Member]	Jun. 30, 2011 Energy And Weather Contracts [Member] Other (Loss) Income [Member]	Jun. 30, 2012 Energy And Weather Contracts [Member] Other (Loss) Income [Member]	Jun. 30, 2011 Energy And Weather Contracts [Member] Other (Loss) Income [Member]	Jan. 20, 2011 Platinum Warrant [Member]	Jan. 20, 2011 Platinum Warrant [Member] Other (Loss) Income [Member]	Jun. 30, 2012 Platinum Warrant [Member] Other (Loss) Income [Member]	Jun. 30, 2011 Platinum Warrant [Member] Other (Loss) Income [Member]	Jun. 30, 2012 Renaissance Trading [Member] Energy And Weather Contracts [Member]	Jun. 30, 2012 Value at Risk Valuation Technique [Member] Energy And Weather Contracts [Member]
Derivative [Line Items]
Notional amount of interest rate derivative purchase contracts						$ 360,200,000	$ 3,200,000,000
Notional amount of interest rate derivative sale contracts						303,700,000	285,700,000
Notional amount of foreign currency derivative purchase contracts								179,700,000	160,500,000	198,300,000	48,100,000	0	7,800,000
Notional amount of foreign currency derivative sale contracts								503,400,000	700,800,000	284,600,000	211,600,000	16,700,000	12,700,000
Notional amount of credit risk derivative purchase contracts														15,000,000	15,000,000
Notional amount of credit risk derivative sale contracts														24,400,000	38,100,000
Value at risk, likelihood of potential loss being within estimate			99.00%
Value at risk, likelihood of potential loss exceeding estimate			1.00%
Value at risk of portfolio at period end																									42,000,000
Value at risk of portfolio during the period, average																									26,400,000
Value at risk of portfolio during the period, minimum																									13,000,000
Value at risk of portfolio during the period, maximum																									49,300,000
Guarantees																								354,300,000
Platinum Warrant, Shares					2.5
Platinum Warrant, in dollars per share					$ 27
Aggregate proceeds from sale of Platinum Warrant																				47,900,000
Derivative Instruments, Gain (Loss) Recognized in Income, Net	$ 9,208,000	$ (4,600,000)	$ (18,476,000)	$ 906,000												$ 11,987,000	$ 1,429,000	$ (16,726,000)	$ 9,929,000		$ 3,000,000	$ 0	$ 2,975,000

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Fair Value Measurements (Company's Portfolio of Other Investments Measured Using Net Asset Valuations) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012
Fair Value	$ 635,828
Unfunded Commitments	102,026
Private equity partnerships [Member]
Fair Value	360,268
Unfunded Commitments	99,125
Senior secured bank loan funds [Member]
Fair Value	269,317
Unfunded Commitments	2,901
Hedge funds [Member]
Fair Value	6,243
Unfunded Commitments	$ 0

XML

Investments (Schedule Of Fair Value Of Fixed Maturity Investments Trading) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Investment [Line Items]
Fixed maturity investments trading, fair value	$ 4,948,955	$ 4,291,465
U.S. treasuries [Member]
Investment [Line Items]
Fixed maturity investments trading, fair value	1,126,759	885,152
Agencies [Member]
Investment [Line Items]
Fixed maturity investments trading, fair value	436,691	158,561
Non-U.S. government (Sovereign Debt) [Member]
Investment [Line Items]
Fixed maturity investments trading, fair value	172,008	216,916
FDIC guaranteed corporate [Member]
Investment [Line Items]
Fixed maturity investments trading, fair value	29,386	423,630
Non-U.S. government-backed corporate [Member]
Investment [Line Items]
Fixed maturity investments trading, fair value	393,875	640,757
Corporate [Member]
Investment [Line Items]
Fixed maturity investments trading, fair value	1,652,007	1,187,437
Agency mortgage-backed [Member]
Investment [Line Items]
Fixed maturity investments trading, fair value	580,971	428,042
Non-agency mortgage-backed [Member]
Investment [Line Items]
Fixed maturity investments trading, fair value	135,268	82,096
Commercial mortgage-backed [Member]
Investment [Line Items]
Fixed maturity investments trading, fair value	414,524	255,885
Asset-backed [Member]
Investment [Line Items]
Fixed maturity investments trading, fair value	$ 7,466	$ 12,989

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Derivative Instruments (Gain (Loss) Recognized In The Consolidated Statements Of Operations Related To Its Derivative Instruments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended				6 Months Ended				3 Months Ended				6 Months Ended				3 Months Ended				6 Months Ended				3 Months Ended		6 Months Ended		0 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Net Investment Income [Member] Interest Rate Futures [Member]	Jun. 30, 2011 Net Investment Income [Member] Interest Rate Futures [Member]	Jun. 30, 2012 Net Investment Income [Member] Interest Rate Futures [Member]	Jun. 30, 2011 Net Investment Income [Member] Interest Rate Futures [Member]	Jun. 30, 2012 Net Investment Income [Member] Credit Default Swap [Member]	Jun. 30, 2011 Net Investment Income [Member] Credit Default Swap [Member]	Jun. 30, 2012 Net Investment Income [Member] Credit Default Swap [Member]	Jun. 30, 2011 Net Investment Income [Member] Credit Default Swap [Member]	Jun. 30, 2012 Net Foreign Exchange Gains (Losses) [Member] Foreign Currency Forward Contracts, Underwriting and Non-investment Operations [Member]		Jun. 30, 2011 Net Foreign Exchange Gains (Losses) [Member] Foreign Currency Forward Contracts, Underwriting and Non-investment Operations [Member]		Jun. 30, 2012 Net Foreign Exchange Gains (Losses) [Member] Foreign Currency Forward Contracts, Underwriting and Non-investment Operations [Member]		Jun. 30, 2011 Net Foreign Exchange Gains (Losses) [Member] Foreign Currency Forward Contracts, Underwriting and Non-investment Operations [Member]		Jun. 30, 2012 Net Foreign Exchange Gains (Losses) [Member] Foreign Currency Forward Contracts, Investment Operations [Member]		Jun. 30, 2011 Net Foreign Exchange Gains (Losses) [Member] Foreign Currency Forward Contracts, Investment Operations [Member]		Jun. 30, 2012 Net Foreign Exchange Gains (Losses) [Member] Foreign Currency Forward Contracts, Investment Operations [Member]		Jun. 30, 2011 Net Foreign Exchange Gains (Losses) [Member] Foreign Currency Forward Contracts, Investment Operations [Member]		Jun. 30, 2012 Net Foreign Exchange Gains (Losses) [Member] Foreign Currency Forward Contracts, Energy And Risk Operations [Member]		Jun. 30, 2011 Net Foreign Exchange Gains (Losses) [Member] Foreign Currency Forward Contracts, Energy And Risk Operations [Member]		Jun. 30, 2012 Net Foreign Exchange Gains (Losses) [Member] Foreign Currency Forward Contracts, Energy And Risk Operations [Member]		Jun. 30, 2011 Net Foreign Exchange Gains (Losses) [Member] Foreign Currency Forward Contracts, Energy And Risk Operations [Member]		Jun. 30, 2012 Other Income (Loss) [Member] Energy And Weather Contracts [Member]	Jun. 30, 2011 Other Income (Loss) [Member] Energy And Weather Contracts [Member]	Jun. 30, 2012 Other Income (Loss) [Member] Energy And Weather Contracts [Member]	Jun. 30, 2011 Other Income (Loss) [Member] Energy And Weather Contracts [Member]	Jan. 20, 2011 Other Income (Loss) [Member] Platinum Warrant [Member]	Jun. 30, 2012 Other Income (Loss) [Member] Platinum Warrant [Member]	Jun. 30, 2011 Other Income (Loss) [Member] Platinum Warrant [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives	$ 9,208	$ (4,600)	$ (18,476)	$ 906	$ (2,847)	$ (7,693)	$ (1,817)	$ (8,347)	$ (24)	$ 420	$ 534	$ 1,142	$ (2,183)	[1]	$ 9,208	[1]	$ 1,369	[1]	$ 17,007	[1]	$ 1,899	[2]	$ (7,752)	[2]	$ (2,349)	[2]	$ (21,152)	[2]	$ 376	[3]	$ (212)	[3]	$ 513	[3]	$ (648)	[3]	$ 11,987	$ 1,429	$ (16,726)	$ 9,929	$ 3,000	$ 0	$ 2,975

[1] Contracts used to manage foreign currency risks in underwriting and non-investment operations.

[2] Contracts used to manage foreign currency risks in investment operations.

[3] Contracts used to manage foreign currency risks in energy and risk operations.

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Ceded Reinsurance (Tables)

6 Months Ended

Jun. 30, 2012

Supplemental Schedule of Reinsurance Premiums for Insurance Companies [Abstract]

Effect Of Reinsurance And Retrocessional Activity On Premiums Written And Earned And On Net Claims And Claim Expenses

The following tables set forth the effect of reinsurance and retrocessional activity on premiums written and earned and on net claims and claim expenses incurred:

Three months ended June 30,	2012			2011
Premiums written
Direct	$	11,736		$	9,309
Assumed	655,600			632,254
Ceded	(239,706		)	(213,568		)
Net premiums written	$	427,630		$	427,995
Premiums earned
Direct	$	7,950		$	4,033
Assumed	341,620			306,757
Ceded	(105,154		)	(93,615		)
Net premiums earned	$	244,416		$	217,175
Claims and claim expenses
Gross claims and claim expenses incurred	$	70,101		$	164,670
Claims and claim expenses recovered	(20,550		)	(13,409		)
Net claims and claim expenses incurred	$	49,551		$	151,261

Six months ended June 30,	2012			2011
Premiums written
Direct	$	20,199		$	15,561
Assumed	1,311,288			1,236,507
Ceded	(411,282		)	(371,498		)
Net premiums written	$	920,205		$	880,570
Premiums earned
Direct	$	15,737		$	6,515
Assumed	698,906			701,292
Ceded	(191,562		)	(185,091		)
Net premiums earned	$	523,081		$	522,716
Claims and claim expenses
Gross claims and claim expenses incurred	$	85,383		$	1,027,993
Claims and claim expenses recovered	(20,280		)	(248,195		)
Net claims and claim expenses incurred	$	65,103		$	779,798

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Variable Interest Entities (Details) (USD $)	3 Months Ended		6 Months Ended			1 Months Ended	6 Months Ended	1 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Upsilon Re [Member] Variable Interest Entity, Primary Beneficiary [Member]	Jun. 30, 2012 Tim Re III [Member] Variable Interest Entity, Primary Beneficiary [Member]	Jun. 30, 2012 Nonvoting Class B Shares [Member] Upsilon Re [Member] Variable Interest Entity, Primary Beneficiary [Member]	Jun. 30, 2012 Nonvoting Class B Shares [Member] Tim Re III [Member] Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Gross premiums written	$ 667,336,000	$ 641,563,000	$ 1,331,487,000	$ 1,252,068,000	$ 37,400,000	$ 41,100,000
Ceded premiums written	239,706,000	213,568,000	411,282,000	371,498,000		37,700,000
Issuance of equity to third party investors							16,800,000	44,800,000
Additional contribution								10,300,000
Variable interest entity, ownership percentage					74.50%	18.60%
Investment in variable interest entity							48,800,000
Risk participation percentage					61.40%
Capital provided in connection with third party reinsurance participation					$ 17,600,000	$ 5,200,000

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Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	$ 5,057,057		$ 4,433,517
Short-term investments	654,912		905,477
Equity investments trading	55,381		50,560
Other investments	743,568		748,984
Total other assets and (liabilities)	35,252		16,071
Total assets and liabilities measured on recurring basis	6,546,170		6,154,609
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	1,126,759		885,152
Short-term investments	0		0
Equity investments trading	55,381		50,560
Other investments	0		0
Total other assets and (liabilities)	(2,593)		(6,162)
Total assets and liabilities measured on recurring basis	1,179,547		929,550
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	3,902,523		3,520,604
Short-term investments	654,912		905,477
Equity investments trading	0		0
Other investments	353,063		352,458
Total other assets and (liabilities)	3,660		(6,293)
Total assets and liabilities measured on recurring basis	4,914,158		4,772,246
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	27,775		27,761
Short-term investments	0		0
Equity investments trading	0		0
Other investments	390,505		396,526
Total other assets and (liabilities)	34,185		28,526
Assets (Liabilities), Fair Value Disclosure, Recurring	34,185
Total assets and liabilities measured on recurring basis	452,465		452,813
U.S. treasuries [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	1,126,759		885,152
U.S. treasuries [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	1,126,759		885,152
U.S. treasuries [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
U.S. treasuries [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	436,691		158,561
Agencies [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Agencies [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	436,691		158,561
Agencies [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Non-U.S. government (Sovereign Debt) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	177,231		227,912
Non-U.S. government (Sovereign Debt) [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Non-U.S. government (Sovereign Debt) [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	177,231		227,912
Non-U.S. government (Sovereign Debt) [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
FDIC guaranteed corporate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	29,386		423,630
FDIC guaranteed corporate [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
FDIC guaranteed corporate [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	29,386		423,630
FDIC guaranteed corporate [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Non-U.S. government-backed corporate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	393,875		641,082
Non-U.S. government-backed corporate [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Non-U.S. government-backed corporate [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	393,875		641,082
Non-U.S. government-backed corporate [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Corporate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	1,664,722		1,206,904
Corporate [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Corporate [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	1,636,947		1,179,143
Corporate [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	27,775		27,761
Agency mortgage-backed [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	592,355		441,749
Agency mortgage-backed [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Agency mortgage-backed [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	592,355		441,749
Agency mortgage-backed [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Non-agency mortgage-backed [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	153,674		104,771
Non-agency mortgage-backed [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Non-agency mortgage-backed [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	153,674		104,771
Non-agency mortgage-backed [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Commercial mortgage-backed [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	470,167		325,729
Commercial mortgage-backed [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Commercial mortgage-backed [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	470,167		325,729
Commercial mortgage-backed [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Asset-backed [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	12,197		18,027
Asset-backed [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Asset-backed [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	12,197		18,027
Asset-backed [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity investments	0		0
Private equity partnerships [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	360,268		367,909
Private equity partnerships [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	0		0
Private equity partnerships [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	0		0
Private equity partnerships [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	360,268		367,909
Senior secured bank loan funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	269,317		257,870
Senior secured bank loan funds [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	0		0
Senior secured bank loan funds [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	246,593		237,815
Senior secured bank loan funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	22,724		20,055
Catastrophe bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	106,470		70,999
Catastrophe bonds [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	0		0
Catastrophe bonds [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	106,470		70,999
Catastrophe bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	0		0
Non-U.S. fixed income funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments			28,862
Non-U.S. fixed income funds [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments			0
Non-U.S. fixed income funds [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments			28,862
Non-U.S. fixed income funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments			0
Hedge funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	6,243		21,344
Hedge funds [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	0		0
Hedge funds [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	0		14,782
Hedge funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	6,243		6,562
Miscellaneous other investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	1,270		2,000
Miscellaneous other investments [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	0		0
Miscellaneous other investments [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	0		0
Miscellaneous other investments [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	1,270		2,000
Assumed and ceded reinsurance contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets and (liabilities)	9,689		2,115
Assumed and ceded reinsurance contracts [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets and (liabilities)	0		0
Assumed and ceded reinsurance contracts [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets and (liabilities)	0		0
Assumed and ceded reinsurance contracts [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets and (liabilities)	9,689		2,115
Derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets and (liabilities)	14,752	[1]	3,312	[1]
Derivatives [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets and (liabilities)	2,011		707	[1]
Derivatives [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets and (liabilities)	3,660		(6,293)	[1]
Derivatives [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets and (liabilities)	9,081	[1]	8,898	[1]
Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets and (liabilities)	10,811		10,644
Other [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets and (liabilities)	(4,604)		(6,869)
Other [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets and (liabilities)	0		0
Other [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other assets and (liabilities)	$ 15,415		$ 17,513

[1] See "Note 12. Derivative Instruments" for additional information related to the fair value by type of contract, of derivatives entered into by the Company.

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Investments (Schedule Of Net Investment Income) (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
Investment income before investment expenses	$ 17,467	$ 36,084	$ 87,139	$ 98,981
Investment expenses	(2,724)	(2,756)	(5,425)	(5,372)
Net investment income	14,743	33,328	81,714	93,609
Fixed maturity investments [Member]
Investment income before investment expenses	22,436	24,426	48,769	52,339
Short term investments [Member]
Investment income before investment expenses	234	433	734	1,028
Equity investments [Member]
Investment income before investment expenses	181	112	351	126
Other investments, Hedge funds and private equity investments [Member]
Investment income before investment expenses	(10,413)	8,230	18,060	31,737
Other investments, Other [Member]
Investment income before investment expenses	4,975	2,838	19,145	13,665
Cash and cash equivalents [Member]
Investment income before investment expenses	$ 54	$ 45	$ 80	$ 86

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Earnings Per Share (Computation Of Basic And Diluted Earnings Per Common Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012		Jun. 30, 2011
Numerator:
Net income (loss) available (attributable) to RenaissanceRe common shareholders	$ 142,270		$ 24,764		$ 343,699		$ (223,269)
Amount allocated to participating common shareholders	(2,236)	[1]	(461)	[1]	(5,601)	[1]	(514)	[1]
Net income (loss) allocated to RenaissanceRe common shareholders	$ 140,034		$ 24,303		$ 338,098		$ (223,783)
Denominator:
Denominator for basic income (loss) per RenaissanceRe common share - weighted average common shares (In shares)	50,278		50,493		50,328		50,994
Per common share equivalents of employee stock options and restricted shares (In shares)	734		557		669		0
Denominator for diluted income (loss) per RenaissanceRe common share - adjusted weighted average common shares and assumed conversions (In shares)	51,012		51,050		50,997		50,994
Basic income (loss) per RenaissanceRe common share (In dollars per share)	$ 2.78		$ 0.48		$ 6.72		$ (4.39)
Diluted income (loss) per RenaissanceRe common share (In dollars per share)	$ 2.75		$ 0.48		$ 6.63		$ (4.39)

[1] Represents earnings attributable to holders of unvested restricted shares issued under the Company’s 2001 Stock Incentive Plan and Non-Employee Director Stock Incentive Plan.

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Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries (Condensed Consolidating Statement Of Operations) (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
Revenues
Net premiums earned	$ 244,416		$ 217,175		$ 523,081		$ 522,716
Net investment income	14,743		33,328		81,714		93,609
Net foreign exchange (losses) gains	2,410		(4,521)		950		(3,861)
Equity in earnings of other ventures	6,846		5,128		12,316		(18,625)
Other income	11,289		(5,167)		(27,805)		44,978
Net realized and unrealized gains on investments	31,003		34,979		77,116		29,765
Net other-than-temporary impairments	(209)		0		(343)		0
Total revenues	310,498		280,922		667,029		668,582
Expenses
Net claims and claim expenses incurred	49,551		151,261		65,103		779,798
Acquisition expenses	25,608		13,883		49,719		46,218
Operational expenses	41,407		42,299		83,790		84,129
Corporate expenses	4,067		4,011		8,878		6,075
Interest expense	5,716		5,730		11,434		11,925
Total expenses	126,349		217,184		218,924		928,145
Income (loss) before equity in net income (loss) of subsidiaries and taxes	184,149		63,738		448,105		(259,563)
Equity in net income (loss) of subsidiaries	0		0		0		0
Income (loss) from continuing operations before taxes	184,149		63,738		448,105		(259,563)
Income tax expense	(898)		1,773		(861)		1,825
Income from continuing operations	183,251		65,511		447,244		(257,738)
Income from discontinued operations	1,393		(10,094)		1,220		(11,620)
Net income	184,644		55,417		448,464		(269,358)
Net income attributable to noncontrolling interests	(33,624)		(21,903)		(87,265)		63,589
Net income (loss) available (attributable) to RenaissanceRe	151,020		33,514		361,199		(205,769)
Dividends on preference shares	(8,750)		(8,750)		(17,500)		(17,500)
Net income available to RenaissanceRe common shareholders	142,270		24,764		343,699		(223,269)
RenaissanceRe Holdings Ltd. (Parent Guarantor) [Member]
Revenues
Net premiums earned	0		0		0		0
Net investment income	3,243		5,586		7,691		10,750
Net foreign exchange (losses) gains	(13)		5		7		96
Equity in earnings of other ventures	0		0		0		0
Other income	60		29		152		195
Net realized and unrealized gains on investments	4,907		3,324		8,419		2,332
Net other-than-temporary impairments	0				0
Total revenues	8,197		8,944		16,269		13,373
Expenses
Net claims and claim expenses incurred	0		0		0		0
Acquisition expenses	0		0		0		0
Operational expenses	(1,303)		(1,196)		(2,614)		(2,416)
Corporate expenses	3,501		3,474		7,679		5,515
Interest expense	1,469		2,559		2,938		7,534
Total expenses	3,667		4,837		8,003		10,633
Income (loss) before equity in net income (loss) of subsidiaries and taxes	4,530		4,107		8,266		2,740
Equity in net income (loss) of subsidiaries	146,490		29,407		352,933		(208,799)
Income (loss) from continuing operations before taxes	151,020		33,514		361,199		(206,059)
Income tax expense	0		0		0		290
Income from continuing operations	151,020		33,514		361,199		(205,769)
Income from discontinued operations	0		0		0		0
Net income	151,020		33,514		361,199		(205,769)
Net income attributable to noncontrolling interests	0		0		0		0
Net income (loss) available (attributable) to RenaissanceRe	151,020		33,514		361,199		(205,769)
Dividends on preference shares	(8,750)		(8,750)		(17,500)		(17,500)
Net income available to RenaissanceRe common shareholders	142,270		24,764		343,699		(223,269)
RenRe North America Holdings Inc. (Subsidiary Issuer) [Member]
Revenues
Net premiums earned	0		0		0		0
Net investment income	206		203		475		219
Net foreign exchange (losses) gains	0		0		0		0
Equity in earnings of other ventures	0		0		0		0
Other income	0		0		0		0
Net realized and unrealized gains on investments	8		(39)		1,052		(39)
Net other-than-temporary impairments	0				0
Total revenues	214		164		1,527		180
Expenses
Net claims and claim expenses incurred	0		0		0		0
Acquisition expenses	0		0		0		0
Operational expenses	1,749		1,542		3,757		3,044
Corporate expenses	59		48		152		109
Interest expense	3,616		3,617		7,233		7,335
Total expenses	5,424		5,207		11,142		10,488
Income (loss) before equity in net income (loss) of subsidiaries and taxes	(5,210)		(5,043)		(9,615)		(10,308)
Equity in net income (loss) of subsidiaries	6,511		(2,568)		(23,757)		(732)
Income (loss) from continuing operations before taxes	1,301		(7,611)		(33,372)		(11,040)
Income tax expense	(400)		1,512		(2,968)		3,077
Income from continuing operations	901		(6,099)		(36,340)		(7,963)
Income from discontinued operations	1,393		(10,094)		1,220		(11,620)
Net income	2,294		(16,193)		(35,120)		(19,583)
Net income attributable to noncontrolling interests	0		0		0		0
Net income (loss) available (attributable) to RenaissanceRe	2,294		(16,193)		(35,120)		(19,583)
Dividends on preference shares	0		0		0		0
Net income available to RenaissanceRe common shareholders	2,294		(16,193)		(35,120)		(19,583)
Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-Guarantor Subsidiaries) [Member]
Revenues
Net premiums earned	244,416	[1]	217,175	[1]	523,081	[1]	522,716	[1]
Net investment income	13,338	[1]	29,441	[1]	77,697	[1]	84,643	[1]
Net foreign exchange (losses) gains	2,423	[1]	(4,526)	[1]	943	[1]	(3,957)	[1]
Equity in earnings of other ventures	6,846	[1]	5,128	[1]	12,316	[1]	(18,625)	[1]
Other income	11,229	[1]	(5,196)	[1]	(27,957)	[1]	44,783	[1]
Net realized and unrealized gains on investments	26,088	[1]	31,694	[1]	67,645	[1]	27,472	[1]
Net other-than-temporary impairments	(209)	[1]			(343)	[1]
Total revenues	304,131	[1]	273,716	[1]	653,382	[1]	657,032	[1]
Expenses
Net claims and claim expenses incurred	49,551	[1]	151,261	[1]	65,103	[1]	779,798	[1]
Acquisition expenses	25,608	[1]	13,883	[1]	49,719	[1]	46,218	[1]
Operational expenses	40,961	[1]	41,953	[1]	82,647	[1]	83,501	[1]
Corporate expenses	507	[1]	489	[1]	1,047	[1]	451	[1]
Interest expense	631	[1]	645	[1]	1,263	[1]	1,754	[1]
Total expenses	117,258	[1]	208,231	[1]	199,779	[1]	911,722	[1]
Income (loss) before equity in net income (loss) of subsidiaries and taxes	186,873	[1]	65,485	[1]	453,603	[1]	(254,690)	[1]
Equity in net income (loss) of subsidiaries	0	[1]	0	[1]	0	[1]	0	[1]
Income (loss) from continuing operations before taxes	186,873	[1]	65,485	[1]	453,603	[1]	(254,690)	[1]
Income tax expense	(498)	[1]	261	[1]	2,107	[1]	(1,542)	[1]
Income from continuing operations	186,375	[1]	65,746	[1]	455,710	[1]	(256,232)	[1]
Income from discontinued operations	0	[1]	0	[1]	0	[1]	0	[1]
Net income	186,375	[1]	65,746	[1]	455,710	[1]	(256,232)	[1]
Net income attributable to noncontrolling interests	(33,624)	[1]	(21,903)	[1]	(87,265)	[1]	63,589	[1]
Net income (loss) available (attributable) to RenaissanceRe	152,751	[1]	43,843	[1]	368,445	[1]	(192,643)	[1]
Dividends on preference shares	0	[1]	0	[1]	0	[1]	0	[1]
Net income available to RenaissanceRe common shareholders	152,751	[1]	43,843	[1]	368,445	[1]	(192,643)	[1]
Consolidating Adjustments [Member]
Revenues
Net premiums earned	0	[2]	0	[2]	0	[2]	0	[2]
Net investment income	(2,044)	[2]	(1,902)	[2]	(4,149)	[2]	(2,003)	[2]
Net foreign exchange (losses) gains	0	[2]	0	[2]	0	[2]	0	[2]
Equity in earnings of other ventures	0	[2]	0	[2]	0	[2]	0	[2]
Other income	0	[2]	0	[2]	0	[2]	0	[2]
Net realized and unrealized gains on investments	0	[2]	0	[2]	0	[2]	0	[2]
Net other-than-temporary impairments	0	[2]			0	[2]
Total revenues	(2,044)	[2]	(1,902)	[2]	(4,149)	[2]	(2,003)	[2]
Expenses
Net claims and claim expenses incurred	0	[2]	0	[2]	0	[2]	0	[2]
Acquisition expenses	0	[2]	0	[2]	0	[2]	0	[2]
Operational expenses	0	[2]	0	[2]	0	[2]	0	[2]
Corporate expenses	0	[2]	0	[2]	0	[2]	0	[2]
Interest expense	0	[2]	(1,091)	[2]	0	[2]	(4,698)	[2]
Total expenses	0	[2]	(1,091)	[2]	0	[2]	(4,698)	[2]
Income (loss) before equity in net income (loss) of subsidiaries and taxes	(2,044)	[2]	(811)	[2]	(4,149)	[2]	2,695	[2]
Equity in net income (loss) of subsidiaries	(153,001)	[2]	(26,839)	[2]	(329,176)	[2]	209,531	[2]
Income (loss) from continuing operations before taxes	(155,045)	[2]	(27,650)	[2]	(333,325)	[2]	212,226	[2]
Income tax expense	0	[2]	0	[2]	0	[2]	0	[2]
Income from continuing operations	(155,045)	[2]	(27,650)	[2]	(333,325)	[2]	212,226	[2]
Income from discontinued operations	0	[2]	0	[2]	0	[2]	0	[2]
Net income	(155,045)	[2]	(27,650)	[2]	(333,325)	[2]	212,226	[2]
Net income attributable to noncontrolling interests	0	[2]	0	[2]	0	[2]	0	[2]
Net income (loss) available (attributable) to RenaissanceRe	(155,045)	[2]	(27,650)	[2]	(333,325)	[2]	212,226	[2]
Dividends on preference shares	0	[2]	0	[2]	0	[2]	0	[2]
Net income available to RenaissanceRe common shareholders	$ (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.

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Ceded Reinsurance (Effect Of Reinsurance And Retrocessional Activity On Premiums Written And Earned And On Net Claims And Claim Expenses) (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
Premiums written
Direct	$ 11,736	$ 9,309	$ 20,199	$ 15,561
Assumed	655,600	632,254	1,311,288	1,236,507
Ceded	(239,706)	(213,568)	(411,282)	(371,498)
Net premiums written	427,630	427,995	920,205	880,570
Premiums earned
Direct	7,950	4,033	15,737	6,515
Assumed	341,620	306,757	698,906	701,292
Ceded	(105,154)	(93,615)	(191,562)	(185,091)
Net premiums earned	244,416	217,175	523,081	522,716
Claims and claim expenses
Gross claims and claim expenses incurred	70,101	164,670	85,383	1,027,993
Claims and claim expenses recovered	(20,550)	(13,409)	(20,280)	(248,195)
Net claims and claim expenses incurred	$ 49,551	$ 151,261	$ 65,103	$ 779,798

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Significant Accounting Policies

6 Months Ended

Jun. 30, 2012

Accounting Policies [Abstract]

Significant Accounting Policies

SIGNIFICANT ACCOUNTING POLICIES

There have been no material changes to our significant accounting policies as described in our Annual Report on Form 10-K for the year ended December 31, 2011.

BASIS OF PRESENTATION

The consolidated financial statements have been prepared on the basis of accounting principles generally accepted in the United States (“GAAP”) for interim financial information and in conformity with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, these unaudited consolidated financial statements reflect all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the Company's financial position and results of operations as at the end of and for the periods presented. All significant intercompany accounts and transactions have been eliminated from these statements. Except as discussed in “Note 3. Discontinued Operations,” and unless otherwise noted, the notes to the consolidated financial statements reflect the Company's continuing operations.

Certain comparative information has been reclassified to conform to the current presentation. Because of the seasonality of the Company's business, the results of operations and cash flows for any interim period will not necessarily be indicative of the results of operations and cash flows for the full fiscal year or subsequent quarters.

USE OF ESTIMATES IN FINANCIAL STATEMENTS

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported and disclosed amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates. The major estimates reflected in the Company’s consolidated financial statements include, but are not limited to, the reserve for claims and claim expenses, reinsurance recoverables, including allowances for reinsurance recoverables deemed uncollectible, estimates of written and earned premiums, fair value, including the fair value of investments, financial instruments and derivatives, impairment charges and the Company’s deferred tax valuation allowance.

RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS

Accounting for Costs Associated with Acquiring or Renewing Insurance Contracts

In October 2010, the FASB issued Accounting Standards Update (“ASU”) No. 2010-26, Accounting for Costs Associated with Acquiring or Renewing Insurance Contracts (“ASU 2010-26”), which amends FASB ASC Topic Financial Services - Insurance. ASU 2010-26 modifies the definition of the types of costs that can be capitalized in relation to the acquisition of new and renewal insurance contracts. The amended guidance requires costs to be incremental or directly related to the successful acquisition of new or renewal contracts in order to be capitalized as a deferred acquisition cost. Capitalized costs would include incremental direct costs, such as commissions paid to brokers. Additionally, the portion of employee salaries and benefits directly related to time spent for acquired contracts would be capitalized. Costs that fall outside the revised definition must be expensed when incurred. ASU 2010-26 became effective for fiscal periods beginning on or after December 15, 2011, and as a result, the Company adopted ASU 2010-26 effective January 1, 2012. The adoption of ASU 2010-26 did not have a material impact on the Company's consolidated statements of operations and financial condition.

Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs

In May 2011, the FASB issued ASU No. 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs (“ASU 2011-04”), which amends FASB ASC Topic Fair Value Measurement. ASU 2011-04 was issued to provide largely identical guidance about fair value measurement and disclosure requirements with the International Accounting Standards Board's new International Financial Reporting Standards (“IFRS”) 13, Fair Value Measurement. ASU 2011-04 does not extend the use of fair value but, rather, provides guidance about how fair value should be applied where it is already required or permitted under GAAP and requires enhanced disclosures covering all transfers between Levels 1 and 2 of the fair value hierarchy. Additional disclosures covering Level 3 assets are also required. ASU 2011-04 became effective for fiscal years, and interim periods within those years, beginning after December 15, 2011 and as a result, the Company adopted ASU 2011-04 effective January 1, 2012. The adoption of ASU 2011-04 did not have a material impact on the Company's consolidated statements of operations and financial condition. The additional disclosures required by ASU 2011-04 have been provided in "Note 5. Fair Value Measurements" of the Company's Notes to Consolidated Financial Statements.

Presentation of Comprehensive Income

In June 2011, the FASB issued ASU No. 2011-05, Presentation of Comprehensive Income (“ASU 2011-05”), which amends FASB ASC Topic Comprehensive Income. ASU 2011-05 increases the prominence of items reported in other comprehensive income and eliminates the option to present components of other comprehensive income as part of the statement of changes in shareholders' equity. ASU 2011-05 requires that all non-owner changes in shareholders' equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. ASU 2011-05 became effective for fiscal years, and interim periods within those years, beginning after December 15, 2011, with retroactive application required. The Company adopted ASU 2010-26 effective January 1, 2012 and it did not have a material impact on the Company's consolidated statements of operations and financial condition.

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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, 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.

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Fair Value Measurements (Quantitative Information Used As Level 3 Inputs) (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	Dec. 31, 2011
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net premiums written	$ 427,630	$ 427,995	$ 920,205	$ 880,570
Net reserve for claims and claim expenses	1,801,247		1,801,247		1,992,354
Significant Unobservable Inputs (Level 3) [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, fair value	452,465		452,465
Other assets and (liabilities). fair value	34,185		34,185
Significant Unobservable Inputs (Level 3) [Member] | Corporate [Member] | Discounted Cash Flow Valuation Technique [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, fair value	17,521		17,521
Significant Unobservable Inputs (Level 3) [Member] | Corporate [Member] | Discounted Cash Flow Valuation Technique [Member] | Weighted Average or Actual [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Credit spread			4.60%
Illiquidity premium			1.00%
Risk-free rate			0.20%
Dividend rate			5.90%
Significant Unobservable Inputs (Level 3) [Member] | Corporate [Member] | Internal Valuation Model Valuation Technique [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, fair value	10,254		10,254
Significant Unobservable Inputs (Level 3) [Member] | Fixed maturity investments [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, fair value	27,775		27,775
Significant Unobservable Inputs (Level 3) [Member] | Private equity partnerships [Member] | Net Asset Valuation Technique [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, fair value	360,268		360,268
Significant Unobservable Inputs (Level 3) [Member] | Private equity partnerships [Member] | Net Asset Valuation Technique [Member] | Low [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Estimated performance			(19.70%)
Significant Unobservable Inputs (Level 3) [Member] | Private equity partnerships [Member] | Net Asset Valuation Technique [Member] | High [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Estimated performance			12.60%
Significant Unobservable Inputs (Level 3) [Member] | Private equity partnerships [Member] | Net Asset Valuation Technique [Member] | Weighted Average or Actual [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Estimated performance			(1.40%)
Significant Unobservable Inputs (Level 3) [Member] | Senior secured bank loan funds [Member] | Net Asset Valuation Technique [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, fair value	22,724		22,724
Significant Unobservable Inputs (Level 3) [Member] | Senior secured bank loan funds [Member] | Net Asset Valuation Technique [Member] | Weighted Average or Actual [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Estimated performance			0.40%
Significant Unobservable Inputs (Level 3) [Member] | Hedge funds [Member] | Net Asset Valuation Technique [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, fair value	6,243		6,243
Significant Unobservable Inputs (Level 3) [Member] | Hedge funds [Member] | Net Asset Valuation Technique [Member] | Low [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Estimated performance			(0.40%)
Significant Unobservable Inputs (Level 3) [Member] | Hedge funds [Member] | Net Asset Valuation Technique [Member] | High [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Estimated performance			3.00%
Significant Unobservable Inputs (Level 3) [Member] | Hedge funds [Member] | Net Asset Valuation Technique [Member] | Weighted Average or Actual [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Estimated performance			1.90%
Significant Unobservable Inputs (Level 3) [Member] | Miscellaneous other investments [Member] | Discounted Cash Flow Valuation Technique [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, fair value	1,270		1,270
Significant Unobservable Inputs (Level 3) [Member] | Miscellaneous other investments [Member] | Discounted Cash Flow Valuation Technique [Member] | Weighted Average or Actual [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Credit spread			7.40%
Illiquidity premium			1.00%
Risk-free rate			0.50%
Significant Unobservable Inputs (Level 3) [Member] | Other Investments [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, fair value	390,505		390,505
Significant Unobservable Inputs (Level 3) [Member] | Assumed and ceded reinsurance contracts [Member] | Internal Valuation Model Valuation Technique [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Other assets and (liabilities). fair value	9,689		9,689
Significant Unobservable Inputs (Level 3) [Member] | Assumed and ceded reinsurance contracts [Member] | Internal Valuation Model Valuation Technique [Member] | Low [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net premiums written			0
Contract period			183 days
Net reserve for claims and claim expenses	0		0
Significant Unobservable Inputs (Level 3) [Member] | Assumed and ceded reinsurance contracts [Member] | Internal Valuation Model Valuation Technique [Member] | High [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Net premiums written			12,300
Contract period			365 days
Net reserve for claims and claim expenses	0		0
Significant Unobservable Inputs (Level 3) [Member] | Weather and energy related derivatives [Member] | Spread Option, Quanto, Black Scholes and Simulation Valuation Techniques [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Other assets and (liabilities). fair value	9,081		9,081
Significant Unobservable Inputs (Level 3) [Member] | Weather and energy related derivatives [Member] | Spread Option, Quanto, Black Scholes and Simulation Valuation Techniques [Member] | Low [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Correlation			0.00%
Volatility			9.40%
Commodity curve			2.62
Weather curve			19
Counterparty default risk			0.00%
Significant Unobservable Inputs (Level 3) [Member] | Weather and energy related derivatives [Member] | Spread Option, Quanto, Black Scholes and Simulation Valuation Techniques [Member] | High [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Correlation			100.00%
Volatility			525.00%
Commodity curve			200
Weather curve			5,000
Counterparty default risk			22.50%
Significant Unobservable Inputs (Level 3) [Member] | Other [Member] | Internal Valuation Model Valuation Technique [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Other assets and (liabilities). fair value	1,250		1,250
Significant Unobservable Inputs (Level 3) [Member] | Other [Member] | Net Asset Valuation Technique [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Other assets and (liabilities). fair value	$ 14,165		$ 14,165

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Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2012

Summary of Derivative Instruments [Abstract]

Schedule of Location on Consolidated Balance Sheets and Fair Value Of Principal Derivative Instruments

The table below shows the location on the consolidated balance sheets and fair value of the Company’s principal derivative instruments:

	Derivative Assets
	June 30, 2012			December 31, 2011
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate futures	Other assets	$	2,301	Other assets	$	612
Foreign currency forward contracts (1)	Other assets	4,278		Other assets	—
Foreign currency forward contracts (2)	Other liabilities	3,359		Other liabilities	7,219
Foreign currency forward contracts (3)	Other assets	—		Other assets	387
Credit default swaps	Other assets	491		Other assets	—
Energy and weather contracts (4)	Other assets	27,516		Other assets	52,721
Total		$	37,945		$	60,939
	Derivative Liabilities
	June 30, 2012			December 31, 2011
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate futures	Other liabilities	$	289	Other liabilities	$	339
Foreign currency forward contracts (1)	Other liabilities	4,987		Other liabilities	11,754
Foreign currency forward contracts (2)	Other liabilities	3,684		Other liabilities	1,606
Foreign currency forward contracts (3)	Other assets	175		Other assets	—
Credit default swaps	Other liabilities	536		Other liabilities	539
Energy and weather contracts (4)	Other liabilities	13,522		Other liabilities	43,389
Total		$	23,193		$	57,627

(1) Contracts used to manage foreign currency risks in underwriting and non-investment operations.

(2) Contracts used to manage foreign currency risks in investment operations. Included in other liabilities are derivative assets of $3.4 million (December 31, 2011 – $7.2 million) which are netted with derivative liabilities of $3.7 million (December 31, 2011 – $1.6 million) under a master netting arrangements.

(3) Contracts used to manage foreign currency risks in energy and risk operations.

(4) Included in other assets is $56.8 million of derivative assets (December 31, 2011 – $104.6 million) and $29.3 million of derivative liabilities (December 31, 2011 – $51.9 million). Included in other liabilities is $5.2 million of derivative assets (December 31, 2011 – $8.8 million) and $18.7 million of derivative liabilities (December 31, 2011 – $52.2 million).

Schedule of Gain (Loss) Recognized In Consolidated Statements Of Operations Related To Derivative Instruments

The location and amount of the gain (loss) recognized in the Company’s consolidated statements of operations related to its derivative instruments is shown in the following table:

	Location of gain (loss) recognized on derivatives	Amount of gain (loss) recognized on derivatives
Three months ended June 30,		2012			2011
Interest rate futures	Net investment income	$	(2,847	)	$	(7,693	)
Foreign currency forward contracts (1)	Net foreign exchange gains (losses)	(2,183		)	9,208
Foreign currency forward contracts (2)	Net foreign exchange gains (losses)	1,899			(7,752		)
Foreign currency forward contracts (3)	Net foreign exchange gains (losses)	376			(212		)
Credit default swaps	Net investment income	(24		)	420
Energy and weather contracts	Other income (loss)	11,987			1,429
Total		$	9,208		$	(4,600	)

	Location of gain (loss) recognized on derivatives	Amount of gain (loss) recognized on derivatives
Six months ended June 30,		2012			2011
Interest rate futures	Net investment income	$	(1,817	)	$	(8,347	)
Foreign currency forward contracts (1)	Net foreign exchange gains (losses)	1,369			17,007
Foreign currency forward contracts (2)	Net foreign exchange gains (losses)	(2,349		)	(21,152		)
Foreign currency forward contracts (3)	Net foreign exchange gains (losses)	513			(648		)
Credit default swaps	Net investment income	534			1,142
Energy and weather contracts	Other income (loss)	(16,726		)	9,929
Platinum warrant	Other income (loss)	—			2,975
Total		$	(18,476	)	$	906

(1) Contracts used to manage foreign currency risks in underwriting and non-investment operations.

(2) Contracts used to manage foreign currency risks in investment operations.

(3) Contracts used to manage foreign currency risks in energy and risk operations.

Schedule of Gross Derivative Contract Positions Outstanding Relating To Energy And Weather Derivatives Trading Activities

As of the dates set forth below, the Company had the following gross derivative contract positions outstanding relating to its energy and weather derivatives trading activities.

	Quantity (1)
	June 30, 2012	December 31, 2011	Unit of measurement
Energy	170,095,670	240,363,364	One million British thermal units (“MMBTUs")
Temperature	24,141,394	14,917,438	$ per Degree Day Fahrenheit
Agriculture	29,798,000	6,098,000	Bushels
Precipitation	1,799,475	65,000	$ per Inch
Wind	146	712	$ per Meters per Second Hour

(1) Represents the sum of gross long and gross short derivative contracts.

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Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2012

Segment Reporting, Measurement Disclosures [Abstract]

Schedule Of Significant Components Of The Company's Revenues And Expenses

A summary of the significant components of the Company's revenues and expenses is as follows:

Three months ended June 30, 2012	Reinsurance			Lloyd’s			Insurance			Other			Total
Gross premiums written	$	617,039		$	50,297		$	—		$	—		$	667,336
Net premiums written	$	379,369		$	48,510		$	(249	)	—			$	427,630
Net premiums earned	$	214,296		$	30,369		$	(249	)	—			$	244,416
Net claims and claim expenses incurred	35,488			14,960			(897		)	—			49,551
Acquisition expenses	20,098			5,510			—			—			25,608
Operational expenses	30,346			10,806			255			—			41,407
Underwriting income (loss)	$	128,364		$	(907	)	$	393		—			127,850
Net investment income										14,743			14,743
Net foreign exchange gains										2,410			2,410
Equity in earnings of other ventures										6,846			6,846
Other income										11,289			11,289
Net realized and unrealized gains on investments										31,003			31,003
Net other-than-temporary impairments										(209		)	(209		)
Corporate expenses										(4,067		)	(4,067		)
Interest expense										(5,716		)	(5,716		)
Income from continuing operations before taxes													184,149
Income tax expense										(898		)	(898		)
Income from discontinued operations										1,393			1,393
Net income attributable to noncontrolling interests										(33,624		)	(33,624		)
Dividends on preference shares										(8,750		)	(8,750		)
Net income available to RenaissanceRe common shareholders													$	142,270
Net claims and claim expenses incurred – current accident year	$	76,631		$	18,366		$	—					$	94,997
Net claims and claim expenses incurred – prior accident years	(41,143		)	(3,406		)	(897		)				(45,446		)
Net claims and claim expenses incurred – total	$	35,488		$	14,960		$	(897	)				$	49,551
Net claims and claim expense ratio – current accident year	35.8		%	60.5		%	—		%				38.9		%
Net claims and claim expense ratio – prior accident years	(19.2		)%	(11.2		)%	360.2		%				(18.6		)%
Net claims and claim expense ratio – calendar year	16.6		%	49.3		%	360.2		%				20.3		%
Underwriting expense ratio	23.5		%	53.7		%	(102.4		)%				27.4		%
Combined ratio	40.1		%	103.0		%	257.8		%				47.7		%

Six months ended June 30, 2012	Reinsurance			Lloyd’s			Insurance			Eliminations (1)			Other			Total
Gross premiums written	$	1,226,801		$	105,114		$	—		$	(428	)	$	—		$	1,331,487
Net premiums written	$	838,007		$	82,447		$	(249	)				—			$	920,205
Net premiums earned	$	468,114		$	55,191		$	(224	)				—			$	523,081
Net claims and claim expenses incurred	43,812			23,961			(2,670		)				—			65,103
Acquisition expenses	39,484			10,178			57						—			49,719
Operational expenses	62,390			20,863			537						—			83,790
Underwriting income	$	322,428		$	189		$	1,852					—			324,469
Net investment income													81,714			81,714
Net foreign exchange gains													950			950
Equity in earnings of other ventures													12,316			12,316
Other loss													(27,805		)	(27,805		)
Net realized and unrealized gains on investments													77,116			77,116
Net other-than-temporary impairments													(343		)	(343		)
Corporate expenses													(8,878		)	(8,878		)
Interest expense													(11,434		)	(11,434		)
Income from continuing operations before taxes																448,105
Income tax expense													(861		)	(861		)
Income from discontinued operations													1,220			1,220
Net income attributable to noncontrolling interests													(87,265		)	(87,265		)
Dividends on preference shares													(17,500		)	(17,500		)
Net income available to RenaissanceRe common shareholders																$	343,699
Net claims and claim expenses incurred – current accident year	$	131,775		$	34,646		$	—								$	166,421
Net claims and claim expenses incurred – prior accident years	(87,963		)	(10,685		)	(2,670		)							(101,318		)
Net claims and claim expenses incurred – total	$	43,812		$	23,961		$	(2,670	)							$	65,103
Net claims and claim expense ratio – current accident year	28.2		%	62.8		%	—		%							31.8		%
Net claims and claim expense ratio – prior accident years	(18.8		)%	(19.4		)%	1,192.0		%							(19.4		)%
Net claims and claim expense ratio – calendar year	9.4		%	43.4		%	1,192.0		%							12.4		%
Underwriting expense ratio	21.7		%	56.3		%	(265.2		)%							25.6		%
Combined ratio	31.1		%	99.7		%	926.8		%							38.0		%

(1) Represents $0.4 million of gross premiums ceded from the Reinsurance segment to the Lloyd’s segment.

Three months ended June 30, 2011	Reinsurance			Lloyd’s			Insurance			Other			Total
Gross premiums written	$	607,404		$	34,126		$	33		$	—		$	641,563
Net premiums written	$	395,856		$	32,084		$	55		—			$	427,995
Net premiums earned	$	199,461		$	17,233		$	481		—			$	217,175
Net claims and claim expenses incurred	143,219			8,619			(577		)	—			151,261
Acquisition expenses	10,431			3,305			147			—			13,883
Operational expenses	32,901			8,635			763			—			42,299
Underwriting income (loss)	$	12,910		$	(3,326	)	$	148		—			9,732
Net investment income										33,328			33,328
Net foreign exchange losses										(4,521		)	(4,521		)
Equity in earnings of other ventures										5,128			5,128
Other loss										(5,167		)	(5,167		)
Net realized and unrealized gains on investments										34,979			34,979
Corporate expenses										(4,011		)	(4,011		)
Interest expense										(5,730		)	(5,730		)
Income from continuing operations before taxes													63,738
Income tax benefit										1,773			1,773
Loss from discontinued operations										(10,094		)	(10,094		)
Net income attributable to redeemable noncontrolling interest – DaVinciRe										(21,903		)	(21,903		)
Dividends on preference shares										(8,750		)	(8,750		)
Net income available to RenaissanceRe common shareholders													$	24,764
Net claims and claim expenses incurred – current accident year	$	162,398		$	9,612		$	(78	)				$	171,932
Net claims and claim expenses incurred – prior accident years	(19,179		)	(993		)	(499		)				(20,671		)
Net claims and claim expenses incurred – total	$	143,219		$	8,619		$	(577	)				$	151,261
Net claims and claim expense ratio – current accident year	81.4		%	55.8		%	(16.2		)%				79.2		%
Net claims and claim expense ratio – prior accident years	(9.6		)%	(5.8		)%	(103.8		)%				(9.6		)%
Net claims and claim expense ratio – calendar year	71.8		%	50.0		%	(120.0		)%				69.6		%
Underwriting expense ratio	21.7		%	69.3		%	189.2		%				25.9		%
Combined ratio	93.5		%	119.3		%	69.2		%				95.5		%

Six months ended June 30, 2011	Reinsurance			Lloyd’s			Insurance			Eliminations  (1)			Other			Total
Gross premiums written	$	1,181,086		$	70,746		$	313		$	(77	)	$	—		$	1,252,068
Net premiums written	$	819,422		$	60,821		$	327					—			$	880,570
Net premiums earned	$	488,890		$	32,907		$	919					—			$	522,716
Net claims and claim expenses incurred	738,623			39,142			2,033						—			779,798
Acquisition expenses	40,223			5,766			229						—			46,218
Operational expenses	65,264			17,607			1,258						—			84,129
Underwriting loss	$	(355,220	)	$	(29,608	)	$	(2,601	)				—			(387,429		)
Net investment income													93,609			93,609
Net foreign exchange losses													(3,861		)	(3,861		)
Equity in losses of other ventures													(18,625		)	(18,625		)
Other income													44,978			44,978
Net realized and unrealized gains on investments													29,765			29,765
Corporate expenses													(6,075		)	(6,075		)
Interest expense													(11,925		)	(11,925		)
Loss from continuing operations before taxes																(259,563		)
Income tax benefit													1,825			1,825
Loss from discontinued operations													(11,620		)	(11,620		)
Net loss attributable to redeemable noncontrolling interest – DaVinciRe													63,589			63,589
Dividends on preference shares													(17,500		)	(17,500		)
Net loss attributable to RenaissanceRe common shareholders																$	(223,269	)
Net claims and claim expenses incurred – current accident year	$	829,760		$	38,938		$	(69	)							$	868,629
Net claims and claim expenses incurred – prior accident years	(91,137		)	204			2,102									(88,831		)
Net claims and claim expenses incurred – total	$	738,623		$	39,142		$	2,033								$	779,798
Net claims and claim expense ratio – current accident year	169.7		%	118.3		%	(7.5		)%							166.2		%
Net claims and claim expense ratio – prior accident years	(18.6		)%	0.6		%	228.7		%							(17.0		)%
Net claims and claim expense ratio – calendar year	151.1		%	118.9		%	221.2		%							149.2		%
Underwriting expense ratio	21.6		%	71.1		%	161.8		%							24.9		%
Combined ratio	172.7		%	190.0		%	383.0		%							174.1		%

(1) Represents $0.1 million of gross premiums ceded from the Reinsurance segment to the Lloyd’s segment.

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Derivative Instruments (Consolidated Balance Sheets And Fair Value Of The Principal Derivative Instruments) (Details) (USD $)	Jun. 30, 2012		Dec. 31, 2011
Derivative Assets [Abstract]
Derivative Asset, Net	$ 37,945,000		$ 60,939,000
Derivative Liabilities [Abstract]
Derivative Liabilities, Net	23,193,000		57,627,000
Other Assets [Member] | Interest Rate Futures [Member]
Derivative Assets [Abstract]
Derivative Asset, Net	2,301,000		612,000
Other Assets [Member] | Foreign Currency Forward Contracts, Underwriting and Non-investment Operations [Member]
Derivative Assets [Abstract]
Derivative Asset, Net	4,278,000	[1]	0	[1]
Other Assets [Member] | Foreign Currency Forward Contracts, Energy And Risk Operations [Member]
Derivative Assets [Abstract]
Derivative Asset, Net	0	[2]	387,000	[2]
Derivative Liabilities [Abstract]
Derivative Liabilities, Net	175,000	[2]	0	[2]
Other Assets [Member] | Credit Default Swap [Member]
Derivative Assets [Abstract]
Derivative Asset, Net	491,000		0
Other Assets [Member] | Energy And Weather Contracts [Member]
Derivative Assets [Abstract]
Derivative Asset, Net	27,516,000	[3]	52,721,000	[3]
Energy and Weather Contracts [Abstract]
Derivative asset, gross asset component	56,800,000		104,600,000
Derivative asset, gross liability component	29,300,000		51,900,000
Other Liabilities [Member] | Interest Rate Futures [Member]
Derivative Liabilities [Abstract]
Derivative Liabilities, Net	289,000		339,000
Other Liabilities [Member] | Foreign Currency Forward Contracts, Underwriting and Non-investment Operations [Member]
Derivative Liabilities [Abstract]
Derivative Liabilities, Net	4,987,000	[1]	11,754,000	[1]
Other Liabilities [Member] | Foreign Currency Forward Contracts, Investment Operations [Member]
Derivative Assets [Abstract]
Derivative Asset, Net	3,359,000	[4]	7,219,000	[4]
Derivative Liabilities [Abstract]
Derivative Liabilities, Net	3,684,000	[4]	1,606,000	[4]
Other Liabilities [Member] | Credit Default Swap [Member]
Derivative Liabilities [Abstract]
Derivative Liabilities, Net	536,000		539,000
Other Liabilities [Member] | Energy And Weather Contracts [Member]
Derivative Liabilities [Abstract]
Derivative Liabilities, Net	13,522,000	[3]	43,389,000	[3]
Energy and Weather Contracts [Abstract]
Derivative liability, gross asset component	5,200,000		8,800,000
Derivative liability, gross liability component	$ 18,700,000		$ 52,200,000

[1] Contracts used to manage foreign currency risks in underwriting and non-investment operations.

[2] Contracts used to manage foreign currency risks in energy and risk operations.

[3] Included in other assets is $56.8 million of derivative assets (December 31, 2011 – $104.6 million) and $29.3 million of derivative liabilities (December 31, 2011 – $51.9 million). Included in other liabilities is $5.2 million of derivative assets (December 31, 2011 – $8.8 million) and $18.7 million of derivative liabilities (December 31, 2011 – $52.2 million).

[4] Contracts used to manage foreign currency risks in investment operations. Included in other liabilities are derivative assets of $3.4 million (December 31, 2011 – $7.2 million) which are netted with derivative liabilities of $3.7 million (December 31, 2011 – $1.6 million) under a master netting arrangements.

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Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Level 3 Inputs) (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
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of the period	$ 494,520	$ 472,021	$ 452,813	$ 400,386
Total unrealized gains (losses)
Included in net investment income	(13,076)	5,573	16,108	29,371
Included in other income (loss)	(15,576)	91	2,987	41,599
Total realized gains
Included in net investment income	0	0	0	0
Included in other income (loss)	22,076	3,307	(33,232)	12,822
Total foreign exchange losses	(1,023)	462	(670)	1,780
Purchases	46,834	20,203	68,804	39,299
Sales	(91,655)	(6,864)	(105,086)	(11,024)
Settlements	10,365	(19,414)	50,741	(38,854)
Net transfers into Level 3	0	0	0	0
Balance at end of the period	452,465	475,379	452,465	475,379
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	(13,076)	5,573	16,108	29,371
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	8,019	4,195	9,678	48,598
Fixed maturity investments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of the period	27,838	21,826	27,761	21,785
Total unrealized gains (losses)
Included in net investment income	(63)	(562)	14	(521)
Included in other income (loss)	0	0	0	0
Total realized gains
Included in net investment income	0	0	0	0
Included in other income (loss)	0	0	0	0
Total foreign exchange losses	0	0	0	0
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	0	0	0	0
Net transfers into Level 3	0	0	0	0
Balance at end of the period	27,775	21,264	27,775	21,264
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	(63)	(562)	14	(521)
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	0	0	0	0
Other Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of the period	418,537	381,815	396,526	362,102
Total unrealized gains (losses)
Included in net investment income	(13,013)	6,135	16,094	29,892
Included in other income (loss)	0	0	0	0
Total realized gains
Included in net investment income	0	0	0	0
Included in other income (loss)	0	0	0	0
Total foreign exchange losses	(1,394)	553	(664)	1,922
Purchases	5,956	11,219	18,645	28,684
Sales	0	0	0	0
Settlements	(19,581)	(18,599)	(40,096)	(41,477)
Net transfers into Level 3	0	0	0	0
Balance at end of the period	390,505	381,123	390,505	381,123
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	(13,013)	6,135	16,094	29,892
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	0	0	0	0
Other Assets and (Liabilities) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of the period	48,145	68,380	28,526	16,499
Total unrealized gains (losses)
Included in net investment income	0	0	0	0
Included in other income (loss)	(15,576)	91	2,987	41,599
Total realized gains
Included in net investment income	0	0	0	0
Included in other income (loss)	22,076	3,307	(33,232)	12,822
Total foreign exchange losses	371	(91)	(6)	(142)
Purchases	40,878	8,984	50,159	10,615
Sales	(91,655)	(6,864)	(105,086)	(11,024)
Settlements	29,946	(815)	90,837	2,623
Net transfers into Level 3	0	0	0	0
Balance at end of the period	34,185	72,992	34,185	72,992
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	0	0	0	0
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	$ 8,019	$ 4,195	$ 9,678	$ 48,598

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Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries (Tables)

6 Months Ended

Jun. 30, 2012

Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries [Abstract]

Condensed Consolidating Balance Sheet

Condensed Consolidating Balance Sheet at June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)		RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries)  (1)		Consolidating Adjustments  (2)			RenaissanceRe Consolidated
Assets
Total investments	$	348,875	$	41,934		$	6,199,801	$	—		$	6,590,610
Cash and cash equivalents	4,749		871			258,612		—			264,232
Investments in subsidiaries	3,277,526		104,976			—		(3,382,502		)	—
Due from subsidiaries and affiliates	117,128		—			—		(117,128		)	—
Premiums receivable	—		—			971,546		—			971,546
Prepaid reinsurance premiums	—		—			278,242		—			278,242
Reinsurance recoverable	—		—			198,777		—			198,777
Accrued investment income	3,030		79			32,829		—			35,938
Deferred acquisition costs	—		—			106,027		—			106,027
Other assets	209,827		27,710			495,109		(218,500		)	514,146
Total assets	$	3,961,135	$	175,570		$	8,540,943	$	(3,718,130	)	$	8,959,518
Liabilities, Noncontrolling Interests and Shareholders’ Equity
Liabilities
Reserve for claims and claim expenses	$	—	$	—		$	1,801,247	$	—		$	1,801,247
Unearned premiums	—		—			964,499		—			964,499
Debt	100,000		249,293			5,000		—			354,293
Amounts due to subsidiaries and affiliates	—		5,215			—		(5,215		)	—
Reinsurance balances payable	—		—			396,669		—			396,669
Other liabilities	18,125		5,571			670,814		(1,458		)	693,052
Liabilities of discontinued operations held for sale	—		1,959			—		—			1,959
Total liabilities	118,125		262,038			3,838,229		(6,673		)	4,211,719
Redeemable noncontrolling interest – DaVinciRe	—		—			900,878		—			900,878
Shareholders’ Equity
Total shareholders’ equity	3,843,010		(86,468		)	3,801,836		(3,711,457		)	3,846,921
Total liabilities, noncontrolling interests and shareholders’ equity	$	3,961,135	$	175,570		$	8,540,943	$	(3,718,130	)	$	8,959,518

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Balance Sheet at December 31, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)		RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries)  (1)		Consolidating Adjustments  (2)			RenaissanceRe Consolidated
Assets
Total investments	$	593,973	$	104,869		$	5,510,410	$	—		$	6,209,252
Cash and cash equivalents	10,606		4,920			201,458		—			216,984
Investments in subsidiaries	2,776,997		83,031			—		(2,860,028		)	—
Due from subsidiaries and affiliates	172,069		846			—		(172,915		)	—
Premiums receivable	—		—			471,878		—			471,878
Prepaid reinsurance premiums	—		—			58,522		—			58,522
Reinsurance recoverable	—		—			404,029		—			404,029
Accrued investment income	4,106		311			29,106		—			33,523
Deferred acquisition costs	—		—			43,721		—			43,721
Other assets	206,171		27,198			275,092		(201,458		)	307,003
Total assets	$	3,763,922	$	221,175		$	6,994,216	$	(3,234,401	)	$	7,744,912
Liabilities, Redeemable Noncontrolling Interest and Shareholders’ Equity
Liabilities
Reserve for claims and claim expenses	$	—	$	—		$	1,992,354	$	—		$	1,992,354
Unearned premiums	—		—			347,655		—			347,655
Debt	100,000		249,247			4,373		—			353,620
Amounts due to subsidiaries and affiliates	30,519		6,081			—		(36,600		)	—
Reinsurance balances payable	—		—			256,883		—			256,883
Other liabilities	28,210		3,755			482,668		—			514,633
Liabilities of discontinued operations held for sale	—		13,507			—		—			13,507
Total liabilities	158,729		272,590			3,083,933		(36,600		)	3,478,652
Redeemable noncontrolling interest – DaVinciRe	—		—			657,727		—			657,727
Shareholders’ Equity
Total shareholders’ equity	3,605,193		(51,415		)	3,252,556		(3,197,801		)	3,608,533
Total liabilities, redeemable noncontrolling interest and shareholders’ equity	$	3,763,922	$	221,175		$	6,994,216	$	(3,234,401	)	$	7,744,912

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Statement Of Operations

Condensed Consolidating Statement of Operations for the six months ended June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries)  (1)			Consolidating Adjustments  (2)			RenaissanceRe Consolidated
Revenues
Net premiums earned	$	—		$	—		$	523,081		$	—		$	523,081
Net investment income	7,691			475			77,697			(4,149		)	81,714
Net foreign exchange gains	7			—			943			—			950
Equity in earnings of other ventures	—			—			12,316			—			12,316
Other income (loss)	152			—			(27,957		)	—			(27,805		)
Net realized and unrealized gains on investments	8,419			1,052			67,645			—			77,116
Net other-than-temporary impairments	—			—			(343		)	—			(343		)
Total revenues	16,269			1,527			653,382			(4,149		)	667,029
Expenses
Net claims and claim expenses incurred	—			—			65,103			—			65,103
Acquisition expenses	—			—			49,719			—			49,719
Operational expenses	(2,614		)	3,757			82,647			—			83,790
Corporate expenses	7,679			152			1,047			—			8,878
Interest expense	2,938			7,233			1,263			—			11,434
Total expenses	8,003			11,142			199,779			—			218,924
Income (loss) before equity in net income (loss) of subsidiaries and taxes	8,266			(9,615		)	453,603			(4,149		)	448,105
Equity in net income (loss) of subsidiaries	352,933			(23,757		)	—			(329,176		)	—
Income (loss) from continuing operations before taxes	361,199			(33,372		)	453,603			(333,325		)	448,105
Income tax (expense) benefit	—			(2,968		)	2,107			—			(861		)
Income (loss) from continuing operations	361,199			(36,340		)	455,710			(333,325		)	447,244
Income from discontinued operations	—			1,220			—			—			1,220
Net income (loss)	361,199			(35,120		)	455,710			(333,325		)	448,464
Net income attributable to noncontrolling interests	—			—			(87,265		)	—			(87,265		)
Net income (loss) attributable to RenaissanceRe	361,199			(35,120		)	368,445			(333,325		)	361,199
Dividends on preference shares	(17,500		)	—			—			—			(17,500		)
Net income (loss) attributable to RenaissanceRe common shareholders	$	343,699		$	(35,120	)	$	368,445		$	(333,325	)	$	343,699

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Statement of Operations for the six months ended June 30, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)			RenaissanceRe Consolidated
Revenues
Net premiums earned	$	—		$	—		$	522,716		$	—		$	522,716
Net investment income	10,750			219			84,643			(2,003		)	93,609
Net foreign exchange gains (losses)	96			—			(3,957		)	—			(3,861		)
Equity in losses of other ventures	—			—			(18,625		)	—			(18,625		)
Other income	195			—			44,783			—			44,978
Net realized and unrealized gains (losses) on investments	2,332			(39		)	27,472			—			29,765
Total revenues	13,373			180			657,032			(2,003		)	668,582
Expenses
Net claims and claim expenses incurred	—			—			779,798			—			779,798
Acquisition expenses	—			—			46,218			—			46,218
Operational expenses	(2,416		)	3,044			83,501			—			84,129
Corporate expenses	5,515			109			451			—			6,075
Interest expense	7,534			7,335			1,754			(4,698		)	11,925
Total expenses	10,633			10,488			911,722			(4,698		)	928,145
Income (loss) before equity in net loss of subsidiaries and taxes	2,740			(10,308		)	(254,690		)	2,695			(259,563		)
Equity in net loss subsidiaries	(208,799		)	(732		)	—			209,531			—
Loss from continuing operations before taxes	(206,059		)	(11,040		)	(254,690		)	212,226			(259,563		)
Income tax benefit (expense)	290			3,077			(1,542		)	—			1,825
Loss from continuing operations	(205,769		)	(7,963		)	(256,232		)	212,226			(257,738		)
Loss from discontinued operations	—			(11,620		)	—			—			(11,620		)
Net loss	(205,769		)	(19,583		)	(256,232		)	212,226			(269,358		)
Net loss attributable to redeemable noncontrolling interest – DaVinciRe	—			—			63,589			—			63,589
Net loss attributable to RenaissanceRe	(205,769		)	(19,583		)	(192,643		)	212,226			(205,769		)
Dividends on preference shares	(17,500		)	—			—			—			(17,500		)
Net loss attributable to RenaissanceRe common shareholders	$	(223,269	)	$	(19,583	)	$	(192,643	)	$	212,226		$	(223,269	)

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidated Statement of Other Comprehensive Income (Loss)

Condensed Consolidating Statement of Comprehensive Loss for the six months ended June 30, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)		RenaissanceRe Consolidated
Comprehensive loss
Net loss	$	(205,769	)	$	(19,583	)	$	(256,232	)	$	212,226	$	(269,358	)
Change in net unrealized gains on investments	—			—			(1,798		)	—		(1,798		)
Portion of other-than-temporary impairments recognized in other comprehensive loss	—			—			—			—		—
Comprehensive loss	(205,769		)	(19,583		)	(258,030		)	212,226		(271,156		)
Net loss attributable to noncontrolling interests	—			—			63,589			—		63,589
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests	—			—			6			—		6
Comprehensive loss attributable to noncontrolling interests	—			—			63,595			—		63,595
Comprehensive loss attributable to RenaissanceRe	$	(205,769	)	$	(19,583	)	$	(194,435	)	$	212,226	$	(207,561	)

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Statement of Comprehensive Income (Loss) for the six months ended June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)		RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)			RenaissanceRe Consolidated
Comprehensive income (loss)
Net income (loss)	$	361,199	$	(35,120	)	$	455,710		$	(333,325	)	$	448,464
Change in net unrealized gains on investments	—		—			823			—			823
Portion of other-than-temporary impairments recognized in other comprehensive income	—		—			(52		)	—			(52		)
Comprehensive income (loss)	361,199		(35,120		)	456,481			(333,325		)	449,235
Net income attributable to noncontrolling interests	—		—			(87,265		)	—			(87,265		)
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests	—		—			—			—			—
Comprehensive income attributable to noncontrolling interests	—		—			(87,265		)	—			(87,265		)
Comprehensive income (loss) attributable to RenaissanceRe	$	361,199	$	(35,120	)	$	369,216		$	(333,325	)	$	361,970

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Statement Of Cash Flows

Condensed Consolidating Statement of Cash Flows for the six months ended June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			RenaissanceRe Consolidated
Cash flows provided by (used in) operating activities
Net cash provided by (used in) operating activities	$	9,361		$	(21,004	)	$	315,420		$	303,777
Cash flows provided by (used in) investing activities
Proceeds from sales and maturities of fixed maturity investments trading	507,082			124,658			4,160,962			4,792,702
Purchases of fixed maturity investments trading	(405,809		)	(57,652		)	(4,849,441		)	(5,312,902		)
Proceeds from sales and maturities of fixed maturity investments available for sale	—			—			37,530			37,530
Net sales (purchases) of short term investments	141,196			(3,483		)	45,892			183,605
Net sales of other investments	—			—			18,681			18,681
Net sales of other assets	—			—			(166		)	(166		)
Dividends and return of capital from subsidiaries	256,153			4,298			(260,451		)	—
Contributions to subsidiaries	(372,700		)	(50,000		)	422,700			—
Due to (from) subsidiary	(5,856		)	(866		)	6,722			—
Net cash provided by (used in) investing activities	120,066			16,955			(417,571		)	(280,550		)
Cash flows (used in) provided by financing activities
Dividends paid – RenaissanceRe common shares	(27,673		)	—			—			(27,673		)
Dividends paid – preference shares	(17,500		)	—			—			(17,500		)
RenaissanceRe common share repurchases	(90,111		)	—			—			(90,111		)
Third party DaVinciRe share transactions	—			—			160,864			160,864
Net cash (used in) provided by financing activities	(135,284		)	—			160,864			25,580
Effect of exchange rate changes on foreign currency cash	—			—			(1,559		)	(1,559		)
Net (decrease) increase in cash and cash equivalents	(5,857		)	(4,049		)	57,154			47,248
Cash and cash equivalents, beginning of period	10,606			4,920			201,458			216,984
Cash and cash equivalents, end of period	$	4,749		$	871		$	258,612		$	264,232

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

Condensed Consolidating Statement of Cash Flows for the six months ended June 30, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			RenaissanceRe Consolidated
Cash flows provided by (used in) operating activities
Net cash provided by (used in) operating activities	$	123,220		$	(25,043	)	$	(67,181	)	$	30,996
Cash flows provided by investing activities
Proceeds from sales and maturities of fixed maturity investments trading	28,749			72,982			2,777,484			2,879,215
Purchases of fixed maturity investments trading	(33,626		)	(208,847		)	(2,569,205		)	(2,811,678		)
Proceeds from sales and maturities of fixed maturity investments available for sale	—			—			48,135			48,135
Purchases of fixed maturity investments available for sale	—			—			(4,078		)	(4,078		)
Net purchases of equity investments trading	—			—			(32,676		)	(32,676		)
Net sales of short term investments	24,965			7,468			18,419			50,852
Net sales (purchases) of other investments	102,717			—			(126,598		)	(23,881		)
Net purchases of investments in other ventures	—			—			(21,000		)	(21,000		)
Net sales of other assets	—			—			46,984			46,984
Dividends and return of capital from subsidiaries	718,294			9,306			(727,600		)	—
Contributions to subsidiaries	(262,115		)	(5,700		)	267,815			—
Due (from) to subsidiaries	(230,079		)	1,645			228,434			—
Net proceeds from sale of discontinued operations held for sale	—			269,520			—			269,520
Net cash provided by investing activities	348,905			146,374			(93,886		)	401,393
Cash flows used in financing activities
Dividends paid – RenaissanceRe common shares	(26,721		)	—			—			(26,721		)
Dividends paid – preference shares	(17,500		)	—			—			(17,500		)
RenaissanceRe common share repurchases	(174,792		)	—			—			(174,792		)
Net repayment of debt	(253,512		)	(124,995		)	178,507			(200,000		)
Third party DaVinciRe share transactions	—			—			(56,708		)	(56,708		)
Net cash used in financing activities	(472,525		)	(124,995		)	121,799			(475,721		)
Effect of exchange rate changes on foreign currency cash	—			—			3,331			3,331
Net decrease in cash and cash equivalents	(400		)	(3,664		)	(35,937		)	(40,001		)
Cash and cash equivalents, beginning of period	3,414			3,940			270,384			277,738
Cash and cash equivalents, end of period	$	3,014		$	276		$	234,447		$	237,737

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

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Discontinued Operations (Details) (USD $)	0 Months Ended	6 Months Ended		0 Months Ended	3 Months Ended	12 Months Ended
	Mar. 04, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 01, 2012 U.S.-based Insurance Operations, Held-for-sale [Member] Reserve Collar [Member]	Jun. 30, 2012 U.S.-based Insurance Operations, Held-for-sale [Member] Reserve Collar [Member]	Dec. 31, 2011 U.S.-based Insurance Operations, Held-for-sale [Member] Reserve Collar [Member]	Dec. 31, 2011 U.S.-based Insurance Operations, Held-for-sale [Member] Reserve Collar [Member] Potential Payables, Adverse Development on Net Claims and Claim Expenses, Prior Accident Years, Maximum [Member]	Dec. 31, 2011 U.S.-based Insurance Operations, Held-for-sale [Member] Reserve Collar [Member] Potential Receivables, Favorable Development on Net Claims and Claim Expenses, Prior Accident Years, Maximum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net consideration	$ 269,500,000	$ 0	$ 269,520,000
Payable or reimbursement to QBE							10,000,000
Receivable or reimbursement from QBE								10,000,000
Expense recognized related to the reserve liability						10,000,000
Payment related to reserve collar				9,000,000
Gain on settlement of reserve collar					$ 1,000,000

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Organization

6 Months Ended

Jun. 30, 2012

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization

ORGANIZATION

This report on Form 10-Q should be read in conjunction with the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2011.

RenaissanceRe Holdings Ltd. (“RenaissanceRe”) was formed under the laws of Bermuda on June 7, 1993. Together with its wholly owned and majority-owned subsidiaries and DaVinciRe (as defined below), which are collectively referred to herein as the “Company”, RenaissanceRe provides reinsurance and insurance coverages and related services to a broad range of customers.

• Renaissance Reinsurance Ltd. (“Renaissance Reinsurance”), the Company’s principal reinsurance subsidiary, provides property catastrophe and specialty reinsurance coverages to insurers and reinsurers on a worldwide basis.

• The Company also manages property catastrophe and specialty reinsurance business written on behalf of joint ventures, which principally include Top Layer Reinsurance Ltd. (“Top Layer Re”), recorded under the equity method of accounting, and DaVinci Reinsurance Ltd. (“DaVinci”). Because the Company owns a noncontrolling equity interest in, but controls a majority of the outstanding voting power of DaVinci's parent, DaVinciRe Holdings Ltd. (“DaVinciRe”), the results of DaVinci and DaVinciRe are consolidated in the Company’s financial statements. Redeemable noncontrolling interest – DaVinciRe represents the interests of external parties with respect to the net loss (income) and shareholders’ equity of DaVinciRe. Renaissance Underwriting Managers, Ltd. (“RUM”), a wholly owned subsidiary, acts as exclusive underwriting manager for these joint ventures in return for fee-based income and profit participation.

• RenaissanceRe Syndicate 1458 (“Syndicate 1458”) is the Company’s Lloyd’s syndicate which was licensed to start writing certain lines of insurance and reinsurance business effective June 1, 2009. RenaissanceRe Corporate Capital (UK) Limited (“RenaissanceRe CCL”), a wholly owned subsidiary of the Company, is Syndicate 1458’s sole corporate member and RenaissanceRe Syndicate Management Ltd. (“RSML”), a wholly owned subsidiary of the Company from November 2, 2009, is the managing agent for Syndicate 1458.

• The Company, through Renaissance Trading Ltd. (“Renaissance Trading”) and RenRe Energy Advisors Ltd. (“REAL”), transacts certain derivative-based risk management products primarily to address weather and energy risk and engages in hedging and trading activities related to those transactions.

• On November 18, 2010, the Company entered into a definitive stock purchase agreement (the “Stock Purchase Agreement”) with QBE Holdings, Inc. (“QBE”) to sell substantially all of its U.S.-based insurance operations including its U.S. property and casualty business underwritten through managing general agents, its crop insurance business underwritten through Agro National Inc. (“Agro National”), its commercial property insurance operations and its claims operations. At December 31, 2010, the Company classified the assets and liabilities associated with this transaction as held for sale. The financial results for these operations have been presented in the Company's consolidated financial statements as “discontinued operations” for all periods presented. On March 4, 2011, the Company and QBE closed the transaction contemplated by the Stock Purchase Agreement. Refer to “Note 3. Discontinued Operations,” for more information.

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Investments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012
Investments [Abstract]
Cash and investments at fair value on deposit with, or in trust accounts for the benefit of various counterparties	$ 1,330.9
Cash and investments at fair value on deposit with, or in trust accounts for the benefit of, U.S. state regulatory authorities	$ 522.6

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Investments (Rollforward Of The Amount Of Other-Than-Temporary Impairments Related To Credit Losses Recognized in Earnings For Which A Portion Of An Other-Than-Temporary Impairment Was Recognized In Accumulated Other Comprehensive Income) (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
Investment [Line Items]
Net other-than-temporary impairments recognized in earnings	$ 209	$ 0	$ 343	$ 0
Portion of other-than-temporary impairments recognized in other comprehensive income	25	0	52	0
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Balance, beginning	520	2,875	564	3,098
Additions:
Amount related to credit loss for which an other-than-temporary impairment was not previously recognized	11	0	11	0
Amount related to credit loss for which an other-than-temporary impairment was previously recognized	41	0	50	0
Reductions:
Securities sold during the period	(396)	(246)	(449)	(469)
Securities for which the amount previously recognized in other comprehensive income was recognized in earnings, because the Company intends to sell the security or is more likely than not the Company will be required to sell the security	0	0	0	0
Increases in cash flows expected to be collected that are recognized over the remaining life of the security	0	0	0	0
Balance, ending	176	2,629	176	2,629
Recognized Due To Intent To Sell Securities Member
Investment [Line Items]
Portion of other-than-temporary impairments recognized in other comprehensive income			0	0
Recognized Due To Required Sales Of Securities Member
Investment [Line Items]
Portion of other-than-temporary impairments recognized in other comprehensive income			$ 0	$ 0

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Segment Reporting (Narrative) (Details)	6 Months Ended
	Jun. 30, 2012 segments
Segment Reporting Information [Line Items]
Reportable Segments	3
Insurance [Member]
Segment Reporting Information [Line Items]
Number of States in which Glencoe Operates	49

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Assets
Fixed maturity investments trading, at fair value (Amortized cost $4,890,251 and $4,265,929 at June 30, 2012 and December 31, 2011, respectively)	$ 4,948,955	$ 4,291,465
Fixed maturity investments available for sale, at fair value (Amortized cost $96,647 and $130,669 at June 30, 2012 and December 31, 2011, respectively)	108,102	142,052
Short term investments, at fair value	654,912	905,477
Equity investments trading, at fair value	55,381	50,560
Other investments, at fair value	743,568	748,984
Investments in other ventures, under equity method	79,692	70,714
Total investments	6,590,610	6,209,252
Cash and cash equivalents	264,232	216,984
Premiums receivable	971,546	471,878
Prepaid reinsurance premiums	278,242	58,522
Reinsurance recoverable	198,777	404,029
Accrued investment income	35,938	33,523
Deferred acquisition costs	106,027	43,721
Receivable for investments sold	311,658	117,117
Other assets	193,798	180,992
Goodwill and other intangible assets	8,690	8,894
Total assets	8,959,518	7,744,912
Liabilities
Reserve for claims and claim expenses	1,801,247	1,992,354
Unearned premiums	964,499	347,655
Debt	354,293	353,620
Reinsurance balances payable	396,669	256,883
Payable for investments purchased	519,619	303,264
Other liabilities	173,433	211,369
Liabilities of discontinued operations held for sale	1,959	13,507
Total liabilities	4,211,719	3,478,652
Commitments and Contingencies
Redeemable noncontrolling interest - DaVinciRe	900,878	657,727
Shareholders' Equity
Preference shares: $1.00 par value - 22,000,000 shares issued and outstanding at June 30, 2012 (December 31, 2011 - 22,000,000)	550,000	550,000
Common shares: $1.00 par value - 50,608,641 shares issued and outstanding at June 30, 2012 (December 31, 2011 - 51,542,955)	50,609	51,543
Accumulated other comprehensive income	12,531	11,760
Retained earnings	3,229,870	2,991,890
Total shareholders' equity attributable to RenaissanceRe	3,843,010	3,605,193
Noncontrolling interest	3,911	3,340
Total shareholders' equity	3,846,921	3,608,533
Total liabilities, noncontrolling interests and shareholders' equity	$ 8,959,518	$ 7,744,912

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Fair Value Measurements (Summary Of The Balances Company Has Elected To Account For At Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Fair Value Disclosures [Abstract]
Other investments	$ 743,568	$ 748,984
Other assets	$ 25,104	$ 19,628

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Consolidated Statements Of Changes In Shareholders' Equity (USD $) In Thousands, unless otherwise specified	Total	Preference Shares [Member]	Common Shares [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]
Beginning of period at Dec. 31, 2010		$ 550,000	$ 54,110	$ 0	$ 19,823	$ 3,312,392
Statement of Changes in Stockholders' Equity
Change in net unrealized gains on investments	1,792				(1,792)
Portion of other-than-temporary impairments recognized in other comprehensive income (loss)					0
Net income (loss)	(269,358)					(269,358)
Net (income) loss attributable to noncontrolling interests	63,589					63,589
Repurchase of shares			(2,655)	546		(172,683)
Change in redeemable noncontrolling interest				(143)
Exercise of options and issuance of restricted stock awards			298	5,365
Dividends on common shares						(26,721)
Dividends on preference shares	(17,500)					(17,500)
Noncontrolling interest							3,430
Total shareholders' equity at Jun. 30, 2011	3,518,701
End of period at Jun. 30, 2011		550,000	51,753	5,768	18,031	2,889,719
Beginning of period at Mar. 31, 2011
Statement of Changes in Stockholders' Equity
Change in net unrealized gains on investments	1,814
Net income (loss)	55,417
Net (income) loss attributable to noncontrolling interests	(21,903)
Dividends on preference shares	(8,750)
Noncontrolling interest							3,430
Total shareholders' equity at Jun. 30, 2011	3,518,701
End of period at Jun. 30, 2011		550,000
Beginning of period at Dec. 31, 2011	3,605,193	550,000	51,543	0	11,760	2,991,890
Statement of Changes in Stockholders' Equity
Change in net unrealized gains on investments	(823)				823
Portion of other-than-temporary impairments recognized in other comprehensive income (loss)					(52)
Net income (loss)	448,464					448,464
Net (income) loss attributable to noncontrolling interests	(87,265)					(87,265)
Repurchase of shares			(1,229)	(12,350)		(78,046)
Change in redeemable noncontrolling interest				7,056
Exercise of options and issuance of restricted stock awards			295	5,294
Dividends on common shares						(27,673)
Dividends on preference shares	(17,500)					(17,500)
Noncontrolling interest	3,911						3,911
Total shareholders' equity at Jun. 30, 2012	3,846,921
End of period at Jun. 30, 2012	3,843,010	550,000	50,609	0	12,531	3,229,870
Beginning of period at Mar. 31, 2012
Statement of Changes in Stockholders' Equity
Change in net unrealized gains on investments	432
Net income (loss)	184,644
Net (income) loss attributable to noncontrolling interests	(33,624)
Dividends on preference shares	(8,750)
Noncontrolling interest	3,911						3,911
Total shareholders' equity at Jun. 30, 2012	3,846,921
End of period at Jun. 30, 2012	$ 3,843,010	$ 550,000

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Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries (Narrative) (Details) (RenRe North America Holdings Inc. [Member], 5.75% Senior Notes Due March 15, 2020 [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
	Mar. 17, 2010
RenRe North America Holdings Inc. [Member] | 5.75% Senior Notes Due March 15, 2020 [Member]
Debt Instrument [Line Items]
Senior notes issuance date	March 17, 2010
5.75% Senior notes issued	$ 250.0
Senior notes interest rate	5.75%
Senior notes maturity date	March 15, 2020

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Investments (Schedule Of Contractual Maturities Of Fixed Maturity Investments) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Investment Holdings [Line Items]
Trading, Amortized Cost, Due in less than one year	$ 405,210
Trading, Amortized Cost, Due after one through five years	2,606,528
Trading, Amortized Cost, Due after five through ten years	625,279
Trading, Amortized Cost, Due after ten years	130,574
Trading, Amortized Cost	4,890,251
Trading, Fair Value, Due in less than one year	405,547
Trading, Fair Value, Due after one through five years	2,615,915
Trading, Fair Value, Due after five through ten years	646,130
Trading, Fair Value, Due after ten years	143,134
Trading, Fair Value	4,948,955	4,291,465
Available for Sale, Amortized Cost, Due in less than one year	112
Available for Sale, Amortized Cost, Due after one through five years	8,358
Available for Sale, Amortized Cost, Due after five through ten years	6,200
Available for Sale, Amortized Cost, Due after ten years	2,145
Available for Sale, Amortized Cost	96,647	130,699
Available for Sale, Fair Value, Due in less than one year	89
Available for Sale, Fair Value, Due after one through five years	8,761
Available for Sale, Fair Value, Due after five through ten years	6,779
Available for Sale, Fair Value, Due after ten years	2,309
Available for Sale, Fair Value	108,102	142,052
Debt Securities, Amortized Cost, Due in less than one year	405,322
Debt Securities, Amortized Cost, Due after one through five years	2,614,886
Debt Securities, Amortized Cost, Due after five through ten years	631,479
Debt Securities, Amortized Cost, Due after ten years	132,719
Debt Securities, Amortized Cost	4,986,898
Debt Securities, Fair Value, Due in less than one year	405,636
Debt Securities, Fair Value, Due after one through give years	2,624,676
Debt Securities, Fair Value, Due after five through ten years	652,909
Debt Securities, Fair Value, Due after ten years	145,443
Debt Securities, Fair Value	5,057,057
Asset-backed [Member]
Investment Holdings [Line Items]
Trading, Amortized Cost	7,356
Trading, Fair Value	7,466
Available for Sale, Amortized Cost	4,499
Available for Sale, Fair Value	4,731
Debt Securities, Amortized Cost	11,855
Debt Securities, Fair Value	12,197
Mortgage-backed [Member]
Investment Holdings [Line Items]
Trading, Amortized Cost	1,115,304
Trading, Fair Value	1,130,763
Available for Sale, Amortized Cost	75,333
Available for Sale, Fair Value	85,433
Debt Securities, Amortized Cost	1,190,637
Debt Securities, Fair Value	$ 1,216,196

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Significant Accounting Policies (Policy)

6 Months Ended

Jun. 30, 2012

Accounting Policies [Abstract]

Basis of Presentation

The consolidated financial statements have been prepared on the basis of accounting principles generally accepted in the United States (“GAAP”) for interim financial information and in conformity with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, these unaudited consolidated financial statements reflect all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the Company's financial position and results of operations as at the end of and for the periods presented. All significant intercompany accounts and transactions have been eliminated from these statements. Except as discussed in “Note 3. Discontinued Operations,” and unless otherwise noted, the notes to the consolidated financial statements reflect the Company's continuing operations.

Certain comparative information has been reclassified to conform to the current presentation. Because of the seasonality of the Company's business, the results of operations and cash flows for any interim period will not necessarily be indicative of the results of operations and cash flows for the full fiscal year or subsequent quarters.

Use of Estimates in Financial Statements

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported and disclosed amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates. The major estimates reflected in the Company’s consolidated financial statements include, but are not limited to, the reserve for claims and claim expenses, reinsurance recoverables, including allowances for reinsurance recoverables deemed uncollectible, estimates of written and earned premiums, fair value, including the fair value of investments, financial instruments and derivatives, impairment charges and the Company’s deferred tax valuation allowance.

Earnings Per Share

The Company accounts for its earnings per share in accordance with FASB ASC Topic Earnings per Share. Basic earnings per common share is based on weighted average common shares and excludes any dilutive effects of stock options and restricted stock. Diluted earnings per common share assumes the exercise of all dilutive stock options and restricted stock grants. In accordance with FASB ASC Topic Earnings per Share, earnings per share calculations use average common shares outstanding - basic, when the Company is in a net loss position for the period.

Recently Adopted Accounting Pronouncements

RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS

Accounting for Costs Associated with Acquiring or Renewing Insurance Contracts

In October 2010, the FASB issued Accounting Standards Update (“ASU”) No. 2010-26, Accounting for Costs Associated with Acquiring or Renewing Insurance Contracts (“ASU 2010-26”), which amends FASB ASC Topic Financial Services - Insurance. ASU 2010-26 modifies the definition of the types of costs that can be capitalized in relation to the acquisition of new and renewal insurance contracts. The amended guidance requires costs to be incremental or directly related to the successful acquisition of new or renewal contracts in order to be capitalized as a deferred acquisition cost. Capitalized costs would include incremental direct costs, such as commissions paid to brokers. Additionally, the portion of employee salaries and benefits directly related to time spent for acquired contracts would be capitalized. Costs that fall outside the revised definition must be expensed when incurred. ASU 2010-26 became effective for fiscal periods beginning on or after December 15, 2011, and as a result, the Company adopted ASU 2010-26 effective January 1, 2012. The adoption of ASU 2010-26 did not have a material impact on the Company's consolidated statements of operations and financial condition.

Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs

In May 2011, the FASB issued ASU No. 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs (“ASU 2011-04”), which amends FASB ASC Topic Fair Value Measurement. ASU 2011-04 was issued to provide largely identical guidance about fair value measurement and disclosure requirements with the International Accounting Standards Board's new International Financial Reporting Standards (“IFRS”) 13, Fair Value Measurement. ASU 2011-04 does not extend the use of fair value but, rather, provides guidance about how fair value should be applied where it is already required or permitted under GAAP and requires enhanced disclosures covering all transfers between Levels 1 and 2 of the fair value hierarchy. Additional disclosures covering Level 3 assets are also required. ASU 2011-04 became effective for fiscal years, and interim periods within those years, beginning after December 15, 2011 and as a result, the Company adopted ASU 2011-04 effective January 1, 2012. The adoption of ASU 2011-04 did not have a material impact on the Company's consolidated statements of operations and financial condition. The additional disclosures required by ASU 2011-04 have been provided in "Note 5. Fair Value Measurements" of the Company's Notes to Consolidated Financial Statements.

Presentation of Comprehensive Income

In June 2011, the FASB issued ASU No. 2011-05, Presentation of Comprehensive Income (“ASU 2011-05”), which amends FASB ASC Topic Comprehensive Income. ASU 2011-05 increases the prominence of items reported in other comprehensive income and eliminates the option to present components of other comprehensive income as part of the statement of changes in shareholders' equity. ASU 2011-05 requires that all non-owner changes in shareholders' equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. ASU 2011-05 became effective for fiscal years, and interim periods within those years, beginning after December 15, 2011, with retroactive application required. The Company adopted ASU 2010-26 effective January 1, 2012 and it did not have a material impact on the Company's consolidated statements of operations and financial condition.

Fair Value

The use of fair value to measure certain assets and liabilities with resulting unrealized gains or losses is pervasive within the Company's financial statements. Fair value is defined under accounting guidance currently applicable to the Company to be the price that would be received upon the sale of an asset or paid to transfer a liability in an orderly transaction between open market participants at the measurement date. The Company recognizes the change in unrealized gains and losses arising from changes in fair value in its consolidated statements of operations, with the exception of changes in unrealized gains and losses on its fixed maturity investments available for sale, which are recognized as a component of accumulated other comprehensive income in shareholders' equity.

FASB ASC Topic Fair Value Measurements and Disclosures prescribes a fair value hierarchy that prioritizes the inputs to the respective valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below:

• Fair values determined by Level 1 inputs utilize unadjusted quoted prices obtained from active markets for identical assets or liabilities for which the Company has access. The fair value is determined by multiplying the quoted price by the quantity held by the Company;

• Fair values determined by Level 2 inputs utilize inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs include quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices that are observable for the asset or liability, such as interest rates and yield curves that are observable at commonly quoted intervals, broker quotes and certain pricing indices; and

• Level 3 inputs are based on unobservable inputs for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. In these cases, significant management assumptions can be used to establish management's best estimate of the assumptions used by other market participants in determining the fair value of the asset or liability.

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, the level in the fair value hierarchy within which the fair value measurement in its entirety falls has been determined based on the lowest level input that is significant to the fair value measurement of the asset or liability. The Company's assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and the Company considers factors specific to the asset or liability.

In order to determine if a market is active or inactive for a security, the Company considers a number of factors, including, but not limited to, the spread between what a seller is asking for a security and what a buyer is bidding for the same security, the volume of trading activity for the security in question, the price of the security compared to its par value (for fixed maturity investments), and other factors that may be indicative of market activity. 

There have been no material changes in the Company's valuation techniques, nor have there been any transfers between Level 1 and Level 2, or Level 2 and Level 3, respectively, during the period represented by these consolidated financial statements.

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Investments (Schedule Of Fair Value Of Equity Investments Trading) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Investments [Abstract]
Equity investments trading	$ 55,381	$ 50,560

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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2012

Fair Value Disclosures [Abstract]

Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis

Below is a summary of the assets and liabilities that are measured at fair value on a recurring basis and also represents the carrying amount on the Company’s consolidated balance sheet:

At June 30, 2012	Total		Quoted Prices in Active Markets for Identical  Assets (Level 1)			Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Fixed maturity investments
U.S. treasuries	$	1,126,759	$	1,126,759		$	—	$	—
Agencies	436,691		—			436,691		—
Non-U.S. government (Sovereign debt)	177,231		—			177,231		—
FDIC guaranteed corporate	29,386		—			29,386		—
Non-U.S. government-backed corporate	393,875		—			393,875		—
Corporate	1,664,722		—			1,636,947		27,775
Agency mortgage-backed	592,355		—			592,355		—
Non-agency mortgage-backed	153,674		—			153,674		—
Commercial mortgage-backed	470,167		—			470,167		—
Asset-backed	12,197		—			12,197		—
Total fixed maturity investments	5,057,057		1,126,759			3,902,523		27,775
Short term investments	654,912		—			654,912		—
Equity investments trading	55,381		55,381			—		—
Other investments
Private equity partnerships	360,268		—			—		360,268
Senior secured bank loan funds	269,317		—			246,593		22,724
Catastrophe bonds	106,470		—			106,470		—
Hedge funds	6,243		—			—		6,243
Miscellaneous other investments	1,270		—			—		1,270
Total other investments	743,568		—			353,063		390,505
Other assets and (liabilities)
Assumed and ceded (re)insurance contracts	9,689		—			—		9,689
Derivatives (1)	14,752		2,011			3,660		9,081
Other	10,811		(4,604		)	—		15,415
Total other assets and (liabilities)	35,252		(2,593		)	3,660		34,185
	$	6,546,170	$	1,179,547		$	4,914,158	$	452,465

(1) See "Note 12. Derivative Instruments" for additional information related to the fair value by type of contract, of derivatives entered into by the Company.

At December 31, 2011	Total		Quoted Prices in Active Markets for Identical  Assets (Level 1)			Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
Fixed maturity investments
U.S. treasuries	$	885,152	$	885,152		$	—		$	—
Agencies	158,561		—			158,561			—
Non-U.S. government (Sovereign debt)	227,912		—			227,912			—
FDIC guaranteed corporate	423,630		—			423,630			—
Non-U.S. government-backed corporate	641,082		—			641,082			—
Corporate	1,206,904		—			1,179,143			27,761
Agency mortgage-backed	441,749		—			441,749			—
Non-agency mortgage-backed	104,771		—			104,771			—
Commercial mortgage-backed	325,729		—			325,729			—
Asset-backed	18,027		—			18,027			—
Total fixed maturity investments	4,433,517		885,152			3,520,604			27,761
Short term investments	905,477		—			905,477			—
Equity investments trading	50,560		50,560			—			—
Other investments
Private equity partnerships	367,909		—			—			367,909
Senior secured bank loan funds	257,870		—			237,815			20,055
Catastrophe bonds	70,999		—			70,999			—
Non-U.S. fixed income funds	28,862		—			28,862			—
Hedge funds	21,344		—			14,782			6,562
Miscellaneous other investments	2,000		—			—			2,000
Total other investments	748,984		—			352,458			396,526
Other assets and (liabilities)
Assumed and ceded (re)insurance contracts	2,115		—			—			2,115
Derivatives (1)	3,312		707			(6,293		)	8,898
Other	10,644		(6,869		)	—			17,513
Total other assets and (liabilities)	16,071		(6,162		)	(6,293		)	28,526
	$	6,154,609	$	929,550		$	4,772,246		$	452,813

(1) See "Note 12. Derivative Instruments" for additional information related to the fair value by type of contract, of derivatives entered into by the Company.

Schedule Of Quantitative Information Used As Level 3 Inputs

Below is a summary of quantitative information regarding the significant observable and unobservable inputs (Level 3) used in determining the fair value of assets and liabilities measured at fair value on a recurring basis:

At June 30, 2012	Fair Value (Level 3)		Valuation Technique	Unobservable (U) and Observable (O) Inputs	Low			High			Weighted Average or Actual
Fixed maturity investments
Corporate	$	17,521	Discounted cash flow ("DCF")	Credit spread (U)	n/a			n/a			4.6	%
				Illiquidity premium (U)	n/a			n/a			1.0	%
				Risk-free rate (O)	n/a			n/a			0.2	%
				Dividend rate (O)	n/a			n/a			5.9	%
	10,254		Internal valuation model	Private transaction (U)	n/a			n/a			See below
Total fixed maturity investments	27,775
Other investments
Private equity partnerships	360,268		Net asset valuation	Estimated performance (U)	(19.7		)%	12.6		%	(1.4	)%
Senior secured bank loan funds	22,724		Net asset valuation	Estimated performance (U)	n/a			n/a			0.4	%
Hedge funds	6,243		Net asset valuation	Estimated performance (U)	(0.4		)%	3.0		%	1.9	%
Miscellaneous other investments	1,270		DCF	Illiquidity premium (U)	n/a			n/a			1.0	%
				Risk-free rate (O)	n/a			n/a			0.5	%
				Credit spread (U)	n/a			n/a			7.4	%
Total other investments	390,505
Other assets and (liabilities)
Assumed and ceded (re)insurance contracts	9,689		Internal valuation model	Net premiums written (O)	—			$12.3 million			See below
				Contract period (O)	183 days			365 days			See below
				Net reserve for claims and claim expenses (U)	—			—			See below
Weather and energy related derivatives	9,081		Spread option; Quanto; Black Scholes; Simulation	Correlation (U)	0			1			See below
				Volatility (U)	9.4		%	525.0		%	See below
				Commodity curve (U)	$	2.62		$	200.00		See below
				Weather curve (U)	19			5,000			See below
				Counterparty default risk (U)	0.0		%	22.5		%	See below
Other	14,165		Net asset valuation	Estimated performance (U)	n/a			n/a			See below
	1,250		Internal valuation model	Private transaction (U)	n/a			n/a			See below
Total other assets and (liabilities)	34,185
	$	452,465

Reconciliation Of Assets And Liabilities Measured At Fair Value On A Recurring Basis Using Level 3 Inputs

Below is a reconciliation of the beginning and ending balances, for the periods shown, of assets and liabilities measured at fair value on a recurring basis using Level 3 inputs. Interest and dividend income are included in net investment income and are excluded from the reconciliation.

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Fixed maturity investments, trading			Other investments			Other assets and (liabilities)			Total
Balance – April 1, 2012	$	27,838		$	418,537		$	48,145		$	494,520
Total unrealized losses
Included in net investment income	(63		)	(13,013		)	—			(13,076		)
Included in other income	—			—			(15,576		)	(15,576		)
Total realized gains
Included in net investment income	—			—			—			—
Included in other income	—			—			22,076			22,076
Total foreign exchange (losses) gains	—			(1,394		)	371			(1,023		)
Purchases	—			5,956			40,878			46,834
Sales	—			—			(91,655		)	(91,655		)
Settlements	—			(19,581		)	29,946			10,365
Net transfers into Level 3	—			—			—			—
Balance – June 30, 2012	$	27,775		$	390,505		$	34,185		$	452,465
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	$	(63	)	$	(13,013	)	$	—		$	(13,076	)
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	$	—		$	—		$	8,019		$	8,019

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Fixed maturity investments, trading		Other investments			Other assets and (liabilities)			Total
Balance – January 1, 2012	$	27,761	$	396,526		$	28,526		$	452,813
Total unrealized gains (losses)
Included in net investment income	14		16,094			—			16,108
Included in other loss	—		—			2,987			2,987
Total realized gains
Included in net investment income	—		—			—			—
Included in other loss	—		—			(33,232		)	(33,232		)
Total foreign exchange losses	—		(664		)	(6		)	(670		)
Purchases	—		18,645			50,159			68,804
Sales	—		—			(105,086		)	(105,086		)
Settlements	—		(40,096		)	90,837			50,741
Net transfers into Level 3	—		—			—			—
Balance – June 30, 2012	$	27,775	$	390,505		$	34,185		$	452,465
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	$	14	$	16,094		$	—		$	16,108
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	$	—	$	—		$	9,678		$	9,678

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Fixed maturity investments trading			Other investments			Other assets  and (liabilities)			Total
Balance – April 1, 2011	$	21,826		$	381,815		$	68,380		$	472,021
Total unrealized (losses) gains
Included in net investment income	(562		)	6,135			—			5,573
Included in other loss	—			—			91			91
Total realized gains
Included in net investment income	—			—			—			—
Included in other loss	—			—			3,307			3,307
Total foreign exchange losses	—			553			(91		)	462
Purchases	—			11,219			8,984			20,203
Sales	—			—			(6,864		)	(6,864		)
Settlements	—			(18,599		)	(815		)	(19,414		)
Net transfers into Level 3	—			—			—			—
Balance – June 30, 2011	$	21,264		$	381,123		$	72,992		$	475,379
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	$	(562	)	$	6,135		$	—		$	5,573
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	$	—		$	—		$	4,195		$	4,195

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Fixed maturity investments trading			Other investments			Other assets  and (liabilities)			Total
Balance – January 1, 2011	$	21,785		$	362,102		$	16,499		$	400,386
Total unrealized (losses) gains
Included in net investment income	(521		)	29,892			—			29,371
Included in other income	—			—			41,599			41,599
Total realized gains
Included in net investment income	—			—			—			—
Included in other income	—			—			12,822			12,822
Total foreign exchange losses	—			1,922			(142		)	1,780
Purchases	—			28,684			10,615			39,299
Sales	—			—			(11,024		)	(11,024		)
Settlements	—			(41,477		)	2,623			(38,854		)
Net transfers into Level 3	—			—			—			—
Balance – June 30, 2011	$	21,264		$	381,123		$	72,992		$	475,379
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	$	(521	)	$	29,892		$	—		$	29,371
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	$	—		$	—		$	48,598		$	48,598

Schedule Of The Balances The Company Has Elected To Account For At Fair Value

Below is a summary of the balances the Company has elected to account for at fair value:

	June 30, 2012		December 31, 2011
Other investments	$	743,568	$	748,984
Other assets	$	25,104	$	19,628

Schedule Of Other Investments Measured Using Net Asset Valuations

The table below shows the Company’s portfolio of other investments measured using net asset valuations:

At June 30, 2012	Fair Value		Unfunded Commitments		Redemption Frequency	Redemption Notice Period (Minimum Days)	Redemption Notice Period (Maximum Days)
Private equity partnerships	$	360,268	$	99,125	See below	See below	See below
Senior secured bank loan funds	269,317		2,901		See below	See below	See below
Hedge funds	6,243		—		See below	See below	See below
Total other investments measured using net asset valuations	$	635,828	$	102,026

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Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows provided by operating activities
Net income (loss)	$ 448,464	$ (269,358)
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Amortization, accretion and depreciation	28,785	17,249
Equity in undistributed (earnings) losses of other ventures	(8,868)	21,355
Net realized and unrealized gains on investments	(77,116)	(29,765)
Net other-than-temporary impairments	343	0
Net unrealized gains included in net investment income	(23,821)	(22,270)
Net unrealized gains included in other income (loss)	(2,987)	(63,141)
Change in:
Premiums receivable	(499,668)	(611,439)
Prepaid reinsurance premiums	(219,720)	(185,033)
Reinsurance recoverable	205,252	(231,534)
Deferred acquisition costs	(62,306)	(55,210)
Reserve for claims and claim expenses	(191,107)	912,885
Unearned premiums	616,844	544,756
Reinsurance balances payable	139,786	85,128
Other	(50,104)	(82,627)
Net cash provided by operating activities	303,777	30,996
Cash flows (used in) provided by investing activities
Proceeds from sales and maturities of fixed maturity investments trading	4,792,702	2,879,215
Purchases of fixed maturity investments trading	(5,312,902)	(2,811,678)
Proceeds from sales and maturities of fixed maturity investments available for sale	37,530	48,135
Purchases of fixed maturity investments available for sale	0	(4,078)
Purchases of equity investments trading	0	(32,676)
Net sales of short term investments	183,605	50,852
Net sales (purchases) of other investments	18,681	(23,881)
Net purchases of investments in other ventures	0	(21,000)
Net (purchases) sales of other assets	(166)	46,984
Net proceeds from sale of discontinued operations held for sale	0	269,520
Net cash (used in) provided by investing activities	(280,550)	401,393
Cash flows provided by (used in) financing activities
Dividends paid - RenaissanceRe common shares	(27,673)	(26,721)
Dividends paid - preference shares	(17,500)	(17,500)
RenaissanceRe common share repurchases	(90,111)	(174,792)
Net repayment of debt	0	(200,000)
Net third party DaVinciRe share transactions	160,864	(56,708)
Net cash provided by (used in) financing activities	25,580	(475,721)
Effect of exchange rate changes on foreign currency cash	(1,559)	3,331
Net increase (decrease) in cash and cash equivalents	47,248	(40,001)
Cash and cash equivalents, beginning of period	216,984	277,738
Cash and cash equivalents, end of period	$ 264,232	$ 237,737

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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Statement of Financial Position [Abstract]
Fixed maturity investments trading, Amortized cost	$ 4,890,251	$ 4,265,929
Fixed maturity investments available-for-sale, Amortized cost	$ 96,647	$ 130,699
Preference Shares, Par Value (In dollars per share)	$ 1	$ 1
Preference Shares, Shares issued (In shares)	22,000,000	22,000,000
Preference Shares, Shares outstanding (In shares)	22,000,000	22,000,000
Common Shares, Par Value (In dollars per share)	$ 1	$ 1
Common Shares, Shares issued (In shares)	50,608,641	51,542,955
Common Shares, Shares outstanding (In shares)	50,608,641	51,542,955

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Earnings Per Share

6 Months Ended

Jun. 30, 2012

Earnings Per Share [Abstract]

Earnings Per Share

EARNINGS PER SHARE

The Company accounts for its earnings per share in accordance with FASB ASC Topic Earnings per Share. Basic earnings per common share is based on weighted average common shares and excludes any dilutive effects of stock options and restricted stock. Diluted earnings per common share assumes the exercise of all dilutive stock options and restricted stock grants. In accordance with FASB ASC Topic Earnings per Share, earnings per share calculations use average common shares outstanding - basic, when the Company is in a net loss position for the period.

The following table sets forth the computation of basic and diluted earnings per common share:

Three months ended June 30,	2012			2011
(thousands of shares)
Numerator:
Net income available to RenaissanceRe common shareholders	$	142,270		$	24,764
Amount allocated to participating common shareholders (1)	(2,236		)	(461		)
Net income allocated to RenaissanceRe common shareholders	$	140,034		$	24,303
Denominator:
Denominator for basic income per RenaissanceRe common share - weighted average common shares	50,278			50,493
Per common share equivalents of employee stock options and restricted shares	734			557
Denominator for diluted income per RenaissanceRe common share - adjusted weighted average common shares and assumed conversions	51,012			51,050
Basic income per RenaissanceRe common share	$	2.78		$	0.48
Diluted income per RenaissanceRe common share	$	2.75		$	0.48

Six months ended June 30,	2012			2011
(thousands of shares)
Numerator:
Net income (loss) available (attributable) to RenaissanceRe common shareholders	$	343,699		$	(223,269	)
Amount allocated to participating common shareholders (1)	(5,601		)	(514		)
Net income (loss) allocated to RenaissanceRe common shareholders	$	338,098		$	(223,783	)
Denominator:
Denominator for basic income (loss) per RenaissanceRe common share - weighted average common shares	50,328			50,994
Per common share equivalents of employee stock options and restricted shares	669			—
Denominator for diluted income (loss) per RenaissanceRe common share - adjusted weighted average common shares and assumed conversions	50,997			50,994
Basic income (loss) per RenaissanceRe common share	$	6.72		$	(4.39	)
Diluted income (loss) per RenaissanceRe common share	$	6.63		$	(4.39	)

(1) Represents earnings attributable to holders of unvested restricted shares issued under the Company’s 2001 Stock Incentive Plan and Non-Employee Director Stock Incentive Plan.

XML

Document and Entity Information	6 Months Ended
	Jun. 30, 2012	Jul. 30, 2012
Document And Entity Information [Abstract]
Entity Registrant Name	RENAISSANCERE HOLDINGS LTD.
Trading Symbol	RNR
Entity Central Index Key	0000913144
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		50,537,049

XML

Segment Reporting

6 Months Ended

Jun. 30, 2012

Segment Reporting, Measurement Disclosures [Abstract]

Segment Reporting

SEGMENT REPORTING

The Company has three reportable segments: Reinsurance, Lloyd's and Insurance.

The Company's Reinsurance operations are comprised of: 1) property catastrophe reinsurance, primarily written through Renaissance Reinsurance and DaVinci; 2) specialty reinsurance, primarily written through Renaissance Reinsurance and DaVinci; and 3) certain property catastrophe and specialty joint ventures, as described herein. The Reinsurance segment is managed by the Global Chief Underwriting Officer, who leads a team of underwriters, risk modelers and other industry professionals, who have access to the Company's proprietary risk management, underwriting and modeling resources and tools.

The Company's Lloyd's segment includes reinsurance and insurance business written through Syndicate 1458. Syndicate 1458 started writing certain lines of insurance and reinsurance business incepting on or after June 1, 2009. The syndicate was established to enhance the Company's underwriting platform by providing access to Lloyd's extensive distribution network and worldwide licenses and is managed by the Chief Underwriting Officer Lloyd's. RenaissanceRe Corporate Capital (UK) Limited (“RenaissanceRe CCL”), an indirect wholly owned subsidiary of the Company, is the sole corporate member of Syndicate 1458.

The Company's Insurance segment includes the operations of the Company's former Insurance segment that were not sold pursuant to the Stock Purchase Agreement with QBE, as discussed in “Note 1. Organization”. The Insurance segment is managed by the Global Chief Underwriting Officer. The Insurance business is written by Glencoe Insurance Ltd. (“Glencoe”). Glencoe is a Bermuda domiciled excess and surplus lines insurance company that is currently eligible to do business on an excess and surplus lines basis in 49 U.S. states, the District of Columbia, Puerto Rico and the U.S. Virgin Islands.

The financial results of the Company's strategic investments, weather and energy risk management operations and noncontrolling interests are included in the Other category of the Company's segment results. Also included in the Other category of the Company's segment results are the Company's investments in other ventures, investments unit, corporate expenses and capital servicing costs.

The Company does not manage its assets by segment; accordingly, net investment income and total assets are not allocated to the segments.

A summary of the significant components of the Company's revenues and expenses is as follows:

Three months ended June 30, 2012	Reinsurance			Lloyd’s			Insurance			Other			Total
Gross premiums written	$	617,039		$	50,297		$	—		$	—		$	667,336
Net premiums written	$	379,369		$	48,510		$	(249	)	—			$	427,630
Net premiums earned	$	214,296		$	30,369		$	(249	)	—			$	244,416
Net claims and claim expenses incurred	35,488			14,960			(897		)	—			49,551
Acquisition expenses	20,098			5,510			—			—			25,608
Operational expenses	30,346			10,806			255			—			41,407
Underwriting income (loss)	$	128,364		$	(907	)	$	393		—			127,850
Net investment income										14,743			14,743
Net foreign exchange gains										2,410			2,410
Equity in earnings of other ventures										6,846			6,846
Other income										11,289			11,289
Net realized and unrealized gains on investments										31,003			31,003
Net other-than-temporary impairments										(209		)	(209		)
Corporate expenses										(4,067		)	(4,067		)
Interest expense										(5,716		)	(5,716		)
Income from continuing operations before taxes													184,149
Income tax expense										(898		)	(898		)
Income from discontinued operations										1,393			1,393
Net income attributable to noncontrolling interests										(33,624		)	(33,624		)
Dividends on preference shares										(8,750		)	(8,750		)
Net income available to RenaissanceRe common shareholders													$	142,270
Net claims and claim expenses incurred – current accident year	$	76,631		$	18,366		$	—					$	94,997
Net claims and claim expenses incurred – prior accident years	(41,143		)	(3,406		)	(897		)				(45,446		)
Net claims and claim expenses incurred – total	$	35,488		$	14,960		$	(897	)				$	49,551
Net claims and claim expense ratio – current accident year	35.8		%	60.5		%	—		%				38.9		%
Net claims and claim expense ratio – prior accident years	(19.2		)%	(11.2		)%	360.2		%				(18.6		)%
Net claims and claim expense ratio – calendar year	16.6		%	49.3		%	360.2		%				20.3		%
Underwriting expense ratio	23.5		%	53.7		%	(102.4		)%				27.4		%
Combined ratio	40.1		%	103.0		%	257.8		%				47.7		%

Six months ended June 30, 2012	Reinsurance			Lloyd’s			Insurance			Eliminations (1)			Other			Total
Gross premiums written	$	1,226,801		$	105,114		$	—		$	(428	)	$	—		$	1,331,487
Net premiums written	$	838,007		$	82,447		$	(249	)				—			$	920,205
Net premiums earned	$	468,114		$	55,191		$	(224	)				—			$	523,081
Net claims and claim expenses incurred	43,812			23,961			(2,670		)				—			65,103
Acquisition expenses	39,484			10,178			57						—			49,719
Operational expenses	62,390			20,863			537						—			83,790
Underwriting income	$	322,428		$	189		$	1,852					—			324,469
Net investment income													81,714			81,714
Net foreign exchange gains													950			950
Equity in earnings of other ventures													12,316			12,316
Other loss													(27,805		)	(27,805		)
Net realized and unrealized gains on investments													77,116			77,116
Net other-than-temporary impairments													(343		)	(343		)
Corporate expenses													(8,878		)	(8,878		)
Interest expense													(11,434		)	(11,434		)
Income from continuing operations before taxes																448,105
Income tax expense													(861		)	(861		)
Income from discontinued operations													1,220			1,220
Net income attributable to noncontrolling interests													(87,265		)	(87,265		)
Dividends on preference shares													(17,500		)	(17,500		)
Net income available to RenaissanceRe common shareholders																$	343,699
Net claims and claim expenses incurred – current accident year	$	131,775		$	34,646		$	—								$	166,421
Net claims and claim expenses incurred – prior accident years	(87,963		)	(10,685		)	(2,670		)							(101,318		)
Net claims and claim expenses incurred – total	$	43,812		$	23,961		$	(2,670	)							$	65,103
Net claims and claim expense ratio – current accident year	28.2		%	62.8		%	—		%							31.8		%
Net claims and claim expense ratio – prior accident years	(18.8		)%	(19.4		)%	1,192.0		%							(19.4		)%
Net claims and claim expense ratio – calendar year	9.4		%	43.4		%	1,192.0		%							12.4		%
Underwriting expense ratio	21.7		%	56.3		%	(265.2		)%							25.6		%
Combined ratio	31.1		%	99.7		%	926.8		%							38.0		%

(1) Represents $0.4 million of gross premiums ceded from the Reinsurance segment to the Lloyd’s segment.

Three months ended June 30, 2011	Reinsurance			Lloyd’s			Insurance			Other			Total
Gross premiums written	$	607,404		$	34,126		$	33		$	—		$	641,563
Net premiums written	$	395,856		$	32,084		$	55		—			$	427,995
Net premiums earned	$	199,461		$	17,233		$	481		—			$	217,175
Net claims and claim expenses incurred	143,219			8,619			(577		)	—			151,261
Acquisition expenses	10,431			3,305			147			—			13,883
Operational expenses	32,901			8,635			763			—			42,299
Underwriting income (loss)	$	12,910		$	(3,326	)	$	148		—			9,732
Net investment income										33,328			33,328
Net foreign exchange losses										(4,521		)	(4,521		)
Equity in earnings of other ventures										5,128			5,128
Other loss										(5,167		)	(5,167		)
Net realized and unrealized gains on investments										34,979			34,979
Corporate expenses										(4,011		)	(4,011		)
Interest expense										(5,730		)	(5,730		)
Income from continuing operations before taxes													63,738
Income tax benefit										1,773			1,773
Loss from discontinued operations										(10,094		)	(10,094		)
Net income attributable to redeemable noncontrolling interest – DaVinciRe										(21,903		)	(21,903		)
Dividends on preference shares										(8,750		)	(8,750		)
Net income available to RenaissanceRe common shareholders													$	24,764
Net claims and claim expenses incurred – current accident year	$	162,398		$	9,612		$	(78	)				$	171,932
Net claims and claim expenses incurred – prior accident years	(19,179		)	(993		)	(499		)				(20,671		)
Net claims and claim expenses incurred – total	$	143,219		$	8,619		$	(577	)				$	151,261
Net claims and claim expense ratio – current accident year	81.4		%	55.8		%	(16.2		)%				79.2		%
Net claims and claim expense ratio – prior accident years	(9.6		)%	(5.8		)%	(103.8		)%				(9.6		)%
Net claims and claim expense ratio – calendar year	71.8		%	50.0		%	(120.0		)%				69.6		%
Underwriting expense ratio	21.7		%	69.3		%	189.2		%				25.9		%
Combined ratio	93.5		%	119.3		%	69.2		%				95.5		%

Six months ended June 30, 2011	Reinsurance			Lloyd’s			Insurance			Eliminations  (1)			Other			Total
Gross premiums written	$	1,181,086		$	70,746		$	313		$	(77	)	$	—		$	1,252,068
Net premiums written	$	819,422		$	60,821		$	327					—			$	880,570
Net premiums earned	$	488,890		$	32,907		$	919					—			$	522,716
Net claims and claim expenses incurred	738,623			39,142			2,033						—			779,798
Acquisition expenses	40,223			5,766			229						—			46,218
Operational expenses	65,264			17,607			1,258						—			84,129
Underwriting loss	$	(355,220	)	$	(29,608	)	$	(2,601	)				—			(387,429		)
Net investment income													93,609			93,609
Net foreign exchange losses													(3,861		)	(3,861		)
Equity in losses of other ventures													(18,625		)	(18,625		)
Other income													44,978			44,978
Net realized and unrealized gains on investments													29,765			29,765
Corporate expenses													(6,075		)	(6,075		)
Interest expense													(11,925		)	(11,925		)
Loss from continuing operations before taxes																(259,563		)
Income tax benefit													1,825			1,825
Loss from discontinued operations													(11,620		)	(11,620		)
Net loss attributable to redeemable noncontrolling interest – DaVinciRe													63,589			63,589
Dividends on preference shares													(17,500		)	(17,500		)
Net loss attributable to RenaissanceRe common shareholders																$	(223,269	)
Net claims and claim expenses incurred – current accident year	$	829,760		$	38,938		$	(69	)							$	868,629
Net claims and claim expenses incurred – prior accident years	(91,137		)	204			2,102									(88,831		)
Net claims and claim expenses incurred – total	$	738,623		$	39,142		$	2,033								$	779,798
Net claims and claim expense ratio – current accident year	169.7		%	118.3		%	(7.5		)%							166.2		%
Net claims and claim expense ratio – prior accident years	(18.6		)%	0.6		%	228.7		%							(17.0		)%
Net claims and claim expense ratio – calendar year	151.1		%	118.9		%	221.2		%							149.2		%
Underwriting expense ratio	21.6		%	71.1		%	161.8		%							24.9		%
Combined ratio	172.7		%	190.0		%	383.0		%							174.1		%

(1) Represents $0.1 million of gross premiums ceded from the Reinsurance segment to the Lloyd’s segment.

XML

Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues
Gross premiums written	$ 667,336	$ 641,563	$ 1,331,487	$ 1,252,068
Net premiums written	427,630	427,995	920,205	880,570
Increase in unearned premiums	(183,214)	(210,820)	(397,124)	(357,854)
Net premiums earned	244,416	217,175	523,081	522,716
Net investment income	14,743	33,328	81,714	93,609
Net foreign exchange gains (losses)	2,410	(4,521)	950	(3,861)
Equity in earnings (losses) of other ventures	6,846	5,128	12,316	(18,625)
Other income (loss)	11,289	(5,167)	(27,805)	44,978
Net realized and unrealized gains on investments	31,003	34,979	77,116	29,765
Total other-than-temporary impairments	(234)	0	(395)	0
Portion recognized in other comprehensive income, before taxes	25	0	52	0
Net other-than-temporary impairments	(209)	0	(343)	0
Total revenues	310,498	280,922	667,029	668,582
Expenses
Net claims and claim expenses incurred	49,551	151,261	65,103	779,798
Acquisition expenses	25,608	13,883	49,719	46,218
Operational expenses	41,407	42,299	83,790	84,129
Corporate expenses	4,067	4,011	8,878	6,075
Interest expense	5,716	5,730	11,434	11,925
Total expenses	126,349	217,184	218,924	928,145
Income (loss) from continuing operations before taxes	184,149	63,738	448,105	(259,563)
Income tax (expense) benefit	(898)	1,773	(861)	1,825
Income (loss) from continuing operations	183,251	65,511	447,244	(257,738)
Income (loss) from discontinued operations	1,393	(10,094)	1,220	(11,620)
Net income (loss)	184,644	55,417	448,464	(269,358)
Net (income) loss attributable to noncontrolling interests	(33,624)	(21,903)	(87,265)	63,589
Net income (loss) attributable to RenaissanceRe	151,020	33,514	361,199	(205,769)
Dividends on preference shares	(8,750)	(8,750)	(17,500)	(17,500)
Net income (loss) available (attributable) to RenaissanceRe common shareholders	$ 142,270	$ 24,764	$ 343,699	$ (223,269)
Income (loss) from continuing operations available (attributable) to RenaissanceRe common shareholders per common share - basic	$ 2.75	$ 0.68	$ 6.70	$ (4.16)
Income (loss) from discontinued operations available (attributable) to RenaissanceRe common shareholders per common share - basic	$ 0.03	$ (0.20)	$ 0.02	$ (0.23)
Net income (loss) available (attributable) to RenaissanceRe common shareholders per common share - basic	$ 2.78	$ 0.48	$ 6.72	$ (4.39)
Income (loss) from continuing operations available (attributable) to RenaissanceRe common shareholders per common share - diluted	$ 2.72	$ 0.68	$ 6.61	$ (4.16)
Income (loss) from discontinued operations available (attributable) to RenaissanceRe common shareholders per common share - diluted	$ 0.03	$ (0.20)	$ 0.02	$ (0.23)
Net income (loss) available (attributable) to RenaissanceRe common shareholders per common share - diluted	$ 2.75	$ 0.48	$ 6.63	$ (4.39)
Dividends per common share	$ 0.27	$ 0.26	$ 0.54	$ 0.52

XML

Fair Value Measurements

6 Months Ended

Jun. 30, 2012

Fair Value Disclosures [Abstract]

Fair Value Measurements

FAIR VALUE MEASUREMENTS

The use of fair value to measure certain assets and liabilities with resulting unrealized gains or losses is pervasive within the Company's financial statements. Fair value is defined under accounting guidance currently applicable to the Company to be the price that would be received upon the sale of an asset or paid to transfer a liability in an orderly transaction between open market participants at the measurement date. The Company recognizes the change in unrealized gains and losses arising from changes in fair value in its consolidated statements of operations, with the exception of changes in unrealized gains and losses on its fixed maturity investments available for sale, which are recognized as a component of accumulated other comprehensive income in shareholders' equity.

FASB ASC Topic Fair Value Measurements and Disclosures prescribes a fair value hierarchy that prioritizes the inputs to the respective valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below:

• Fair values determined by Level 1 inputs utilize unadjusted quoted prices obtained from active markets for identical assets or liabilities for which the Company has access. The fair value is determined by multiplying the quoted price by the quantity held by the Company;

• Fair values determined by Level 2 inputs utilize inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs include quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices that are observable for the asset or liability, such as interest rates and yield curves that are observable at commonly quoted intervals, broker quotes and certain pricing indices; and

• Level 3 inputs are based on unobservable inputs for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. In these cases, significant management assumptions can be used to establish management's best estimate of the assumptions used by other market participants in determining the fair value of the asset or liability.

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, the level in the fair value hierarchy within which the fair value measurement in its entirety falls has been determined based on the lowest level input that is significant to the fair value measurement of the asset or liability. The Company's assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and the Company considers factors specific to the asset or liability.

In order to determine if a market is active or inactive for a security, the Company considers a number of factors, including, but not limited to, the spread between what a seller is asking for a security and what a buyer is bidding for the same security, the volume of trading activity for the security in question, the price of the security compared to its par value (for fixed maturity investments), and other factors that may be indicative of market activity. 

There have been no material changes in the Company's valuation techniques, nor have there been any transfers between Level 1 and Level 2, or Level 2 and Level 3, respectively, during the period represented by these consolidated financial statements.

Below is a summary of the assets and liabilities that are measured at fair value on a recurring basis and also represents the carrying amount on the Company’s consolidated balance sheet:

At June 30, 2012	Total		Quoted Prices in Active Markets for Identical  Assets (Level 1)			Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Fixed maturity investments
U.S. treasuries	$	1,126,759	$	1,126,759		$	—	$	—
Agencies	436,691		—			436,691		—
Non-U.S. government (Sovereign debt)	177,231		—			177,231		—
FDIC guaranteed corporate	29,386		—			29,386		—
Non-U.S. government-backed corporate	393,875		—			393,875		—
Corporate	1,664,722		—			1,636,947		27,775
Agency mortgage-backed	592,355		—			592,355		—
Non-agency mortgage-backed	153,674		—			153,674		—
Commercial mortgage-backed	470,167		—			470,167		—
Asset-backed	12,197		—			12,197		—
Total fixed maturity investments	5,057,057		1,126,759			3,902,523		27,775
Short term investments	654,912		—			654,912		—
Equity investments trading	55,381		55,381			—		—
Other investments
Private equity partnerships	360,268		—			—		360,268
Senior secured bank loan funds	269,317		—			246,593		22,724
Catastrophe bonds	106,470		—			106,470		—
Hedge funds	6,243		—			—		6,243
Miscellaneous other investments	1,270		—			—		1,270
Total other investments	743,568		—			353,063		390,505
Other assets and (liabilities)
Assumed and ceded (re)insurance contracts	9,689		—			—		9,689
Derivatives (1)	14,752		2,011			3,660		9,081
Other	10,811		(4,604		)	—		15,415
Total other assets and (liabilities)	35,252		(2,593		)	3,660		34,185
	$	6,546,170	$	1,179,547		$	4,914,158	$	452,465

(1) See "Note 12. Derivative Instruments" for additional information related to the fair value by type of contract, of derivatives entered into by the Company.

At December 31, 2011	Total		Quoted Prices in Active Markets for Identical  Assets (Level 1)			Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
Fixed maturity investments
U.S. treasuries	$	885,152	$	885,152		$	—		$	—
Agencies	158,561		—			158,561			—
Non-U.S. government (Sovereign debt)	227,912		—			227,912			—
FDIC guaranteed corporate	423,630		—			423,630			—
Non-U.S. government-backed corporate	641,082		—			641,082			—
Corporate	1,206,904		—			1,179,143			27,761
Agency mortgage-backed	441,749		—			441,749			—
Non-agency mortgage-backed	104,771		—			104,771			—
Commercial mortgage-backed	325,729		—			325,729			—
Asset-backed	18,027		—			18,027			—
Total fixed maturity investments	4,433,517		885,152			3,520,604			27,761
Short term investments	905,477		—			905,477			—
Equity investments trading	50,560		50,560			—			—
Other investments
Private equity partnerships	367,909		—			—			367,909
Senior secured bank loan funds	257,870		—			237,815			20,055
Catastrophe bonds	70,999		—			70,999			—
Non-U.S. fixed income funds	28,862		—			28,862			—
Hedge funds	21,344		—			14,782			6,562
Miscellaneous other investments	2,000		—			—			2,000
Total other investments	748,984		—			352,458			396,526
Other assets and (liabilities)
Assumed and ceded (re)insurance contracts	2,115		—			—			2,115
Derivatives (1)	3,312		707			(6,293		)	8,898
Other	10,644		(6,869		)	—			17,513
Total other assets and (liabilities)	16,071		(6,162		)	(6,293		)	28,526
	$	6,154,609	$	929,550		$	4,772,246		$	452,813

(1) See "Note 12. Derivative Instruments" for additional information related to the fair value by type of contract, of derivatives entered into by the Company.

Level 1 and Level 2 Assets and Liabilities Measured at Fair Value

Fixed Maturity Investments

Fixed maturity investments included in Level 1 consist of the Company's investments in U.S. treasuries. Fixed maturity investments included in Level 2 are agencies, non-U.S. government, Federal Deposit Insurance Company ("FDIC") guaranteed corporate, non-U.S. government-backed corporate, corporate, agency mortgage-backed, non-agency mortgage-backed, commercial mortgage-backed and asset-backed fixed maturity investments.

The Company’s fixed maturity investments portfolios are primarily priced using pricing services, such as index providers and pricing vendors, as well as broker quotations. In general, the pricing vendors provide pricing for a high volume of liquid securities that are actively traded. For securities that do not trade on an exchange, the pricing services generally utilize market data and other observable inputs in matrix pricing models to determine month end prices. Observable inputs include benchmark yields, reported trades, broker-dealer quotes, issuer spreads, bids, offers, reference data and industry and economic events. Index pricing generally relies on market traders as the primary source for pricing, however models are also utilized to provide prices for all index eligible securities. The models use a variety of observable inputs such as benchmark yields, transactional data, dealer runs, broker-dealer quotes and corporate actions. Prices are generally verified using third party data. Securities which are priced by an index provider are generally included in the index.

In general, broker-dealers value securities through their trading desks based on observable inputs. The methodologies include mapping securities based on trade data, bids or offers, observed spreads, and performance on newly issued securities. Broker-dealers also determine valuations by observing secondary trading of similar securities. Prices obtained from broker quotations are considered non-binding, however they are based on observable inputs and by observing secondary trading of similar securities obtained from active, non-distressed markets.

The Company considers these Level 2 inputs as they are corroborated with other market observable inputs. The techniques generally used to determine the fair value of our fixed maturity investments are detailed below by asset class.

U.S. treasuries

Level 1 - At June 30, 2012, the Company’s U.S. treasuries fixed maturity investments are primarily priced by pricing services and had a weighted average effective yield of 0.5% and a weighted average credit quality of AA (December 31, 2011 - 0.6% and AA, respectively). When pricing these securities, the pricing services utilize daily data from many real time market sources, including active broker dealers. Certain data sources are regularly reviewed for accuracy to attempt to ensure the most reliable price source is used for each issue and maturity date.

Agencies

Level 2 - At June 30, 2012, the Company’s agency fixed maturity investments had a weighted average effective yield of 0.7% and a weighted average credit quality of AA (December 31, 2011 - 0.5% and AA, respectively). The issuers of the Company’s agency fixed maturity investments primarily consist of the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation and other agencies. Fixed maturity investments included in agencies are primarily priced by pricing services. When evaluating these securities, the pricing services gather information from market sources and integrates other observations from markets and sector news. Evaluations are updated by obtaining broker dealer quotes and other market information including actual trade volumes, when available. The fair value of each security is individually computed using analytical models which incorporate option adjusted spreads and other daily interest rate data.

Non-U.S. government (Sovereign debt)

Level 2 - Non-U.S. government fixed maturity investments held by the Company at June 30, 2012, had a weighted average effective yield of 2.2% and a weighted average credit quality of AA (December 31, 2011 - 2.3% and AA, respectively). The issuers of securities in this sector are non-U.S. governments and their respective agencies as well as supranational organizations. Securities held in these sectors are primarily priced by pricing services who employ proprietary discounted cash flow models to value the securities. Key quantitative inputs for these models are daily observed benchmark curves for treasury, swap and high issuance credits. The pricing services then apply a credit spread for each security which is developed by in-depth and real time market analysis. For securities in which trade volume is low, the pricing services utilize data from more frequently traded securities with similar attributes. These models may also be supplemented by daily market and credit research for international markets.

FDIC guaranteed corporate

Level 2 - The Company’s FDIC guaranteed corporate fixed maturity investments had a weighted average effective yield of 0.3% and a weighted average credit quality of AA at June 30, 2012 (December 31, 2011 - 0.3% and AA, respectively). The issuers consist of well known corporate issuers who participate in the FDIC program. The Company’s FDIC guaranteed corporate fixed maturity investments are primarily priced by pricing services. When evaluating these securities, the pricing services gather information from market sources regarding the issuer of the security and obtain credit data, as well as other observations, from markets and sector news. Evaluations are updated by obtaining broker dealer quotes and other market information including actual trade volumes, when available. The pricing services also consider the specific terms and conditions of the securities, including any specific features which may influence risk. In certain instances, securities are individually evaluated using a spread which is added to the U.S. treasury curve.

Non-U.S. government-backed corporate

Level 2 - Non-U.S. government-backed corporate fixed maturity investments had a weighted average effective yield of 1.2% and a weighted average credit quality of AAA at June 30, 2012 (December 31, 2011 - 1.4% and AAA, respectively). Non-U.S. government-backed fixed maturity investments are primarily priced by pricing services who employ proprietary discounted cash flow models to value the securities. Key quantitative inputs for these models are daily observed benchmark curves for treasury, swap and high issuance credits. The pricing services then apply a credit spread to the respective curve for each security which is developed by in-depth and real time market analysis. For securities in which trade volume is low, the pricing services utilize data from more frequently traded securities with similar attributes. These models may also be supplemented by daily market and credit research for international markets.

Corporate

Level 2 - At June 30, 2012, the Company’s corporate fixed maturity investments principally consist of U.S. and international corporations and had a weighted average effective yield of 3.1% and a weighted average credit quality of A (December 31, 2011 - 4.2% and A, respectively). The Company’s corporate fixed maturity investments are primarily priced by pricing services. When evaluating these securities, the pricing services gather information from market sources regarding the issuer of the security and obtain credit data, as well as other observations, from markets and sector news. Evaluations are updated by obtaining broker dealer quotes and other market information including actual trade volumes, when available. The pricing services also consider the specific terms and conditions of the securities, including any specific features which may influence risk. In certain instances, securities are individually evaluated using a spread which is added to the U.S. treasury curve or a security specific swap curve as appropriate.

Agency mortgage-backed

Level 2 - At June 30, 2012, the Company’s agency mortgage-backed fixed maturity investments included agency residential mortgage-backed securities with a weighted average effective yield of 1.5%, a weighted average credit quality of AA and a weighted average life of 2.8 years (December 31, 2011 - 1.5%, AA and 2.6 years, respectively). The Company’s agency mortgage-backed fixed maturity investments are primarily priced by pricing services using a mortgage pool specific model which utilizes daily inputs from the active and the to be announced ("TBA") market which is very liquid, as well as the U.S. treasury market. The model also utilizes additional information, such as the weighted average maturity, weighted average coupon and other available pool level data which is provided by the sponsoring agency. Valuations are also corroborated with daily active market quotes.

Non-agency mortgage-backed

Level 2 - The Company’s non-agency mortgage-backed fixed maturity investments include non-agency prime residential mortgage-backed and non-agency Alt-A fixed maturity investments. The Company has no fixed maturity investments classified as sub-prime held in its fixed maturity investments portfolio. At June 30, 2012, the Company’s non-agency prime residential mortgage-backed fixed maturity investments have a weighted average effective yield of 5.2%, a weighted average credit quality of BBB, and a weighted average life of 5.2 years (December 31, 2011 - 8.0%, BBB and 3.3 years, respectively). The Company’s non-agency Alt-A fixed maturity investments held at June 30, 2012 have a weighted average effective yield of 7.0%, a weighted average credit quality of BBB and a weighted average life of 5.5 years (December 31, 2011 - 9.1%, A and 3.8 years, respectively) . Securities held in these sectors are primarily priced by pricing services using an option adjusted spread (”OAS”) model or other relevant models, which principally utilize inputs including benchmark yields, available trade information or broker quotes, and issuer spreads. The pricing services also review collateral prepayment speeds, loss severity and delinquencies among other collateral performance indicators for the securities valuation, when applicable.

Commercial mortgage-backed

Level 2 - The Company’s commercial mortgage-backed fixed maturity investments held at June 30, 2012 have a weighted average effective yield of 2.5%, a weighted average credit quality of AA, and a weighted average life of 3.8 years (December 31, 2011 - 3.2%, AA and 4.2 years, respectively). Securities held in these sectors are primarily priced by pricing services. The pricing services apply dealer quotes and other available trade information such as bid and offers, prepayment speeds which may be adjusted for the underlying collateral or current price data, the U.S. treasury curve and swap curve as well as cash settlement. The pricing services discount the expected cash flows for each security held in this sector using a spread adjusted benchmark yield based on the characteristics of the security.

Asset-backed

Level 2 - At June 30, 2012, the Company’s asset-backed fixed maturity investments had a weighted average effective yield of 2.5%, a weighted average credit quality of AAA and a weighted average life of 3.8 years (December 31, 2011 - 0.9%, AAA and 1.8 years, respectively). The underlying collateral for the Company’s asset-backed fixed maturity investments primarily consists of student loans, credit card receivables, auto loans and other receivables. Securities held in these sectors are primarily priced by pricing services. The pricing services apply dealer quotes and other available trade information such as bids and offers, prepayment speeds which may be adjusted for the underlying collateral or current price data, the U.S. treasury curve and swap curve as well as cash settlement. The pricing services determine the expected cash flows for each security held in this sector using historical prepayment and default projections for the underlying collateral and current market data. In addition, a spread is applied to the relevant benchmark and used to discount the cash flows noted above to determine the fair value of the securities held in this sector.

Short Term Investments

Level 2 - The fair value of the Company's portfolio of short term investments are generally determined using amortized cost which approximates fair value and, in certain cases, in a manner similar to the Company’s fixed maturity investments noted above.

Equity Investments, Classified as Trading

Level 1 - The fair value of the Company's portfolio of equity investments, classified as trading are primarily priced by pricing services, reflecting the closing price quoted for the final trading day of the period. When pricing these securities, the pricing services utilize daily data from many real time market sources, including active broker dealers and applicable securities exchanges. All data sources are regularly reviewed for accuracy to attempt to ensure the most reliable price source is used for each issue.

Other investments

Senior secured bank loan funds

Level 2 - At June 30, 2012, the Company’s investments in senior secured bank loan funds include funds that invest primarily in bank loans and other senior debt instruments. The fair value of the Company’s senior secured bank loan funds are determined using the net asset value per share of the funds. Investments of $246.6 million are redeemable, in part on a monthly basis, or in whole over a three month period.

Catastrophe bonds

Level 2 - The Company's other investments include investments in catastrophe bonds which are recorded at fair value. The fair value of the Company's investments in catastrophe bonds is based on broker or underwriter bid indications.

Non-U.S. fixed income funds

Level 2 - The Company’s non-U.S. fixed income funds invested primarily in non-U.S. convertible securities. The fair values of the investments in this category were estimated using the net asset value per share of the investments which were provided by third parties such as the relevant investment manager or administrator. During April 2012, the Company fully redeemed its remaining investment in non-U.S. fixed income funds at the then net asset value per share.

Hedge funds

Level 2 - The Company has investments in hedge funds that pursue multiple strategies. The fair values of the Company’s hedge funds are determined by adjusting the previous period's reported net asset value, which is generally one month in arrears, for an estimated periodic rate of return obtained from the respective investment manager.

For each respective hedge fund investment, the Company obtains and reviews the valuation methodology used by the investment manager and the latest audited financial statements to attempt to ensure that the hedge fund investment is following fair value principles consistent with GAAP in determining the net asset value of each investor's interest.

During June 2012, the Company fully redeemed the portion of its investment in hedge funds which the Company had considered Level 2 in the fair value hierarchy, at the then net asset value per share.

Other assets and liabilities

Derivatives

Level 1 and Level 2 - Other assets and liabilities include certain other derivatives entered into by the Company. The fair value of these transactions include certain exchange traded foreign currency forward contracts which are considered Level 1, and certain credit derivatives, determined using standard industry valuation models and considered Level 2, as the inputs to the valuation model are based on observable market inputs, including credit spreads, credit ratings of the underlying referenced security, the risk free rate and the contract term.

Other

Level 1 - The liabilities measured at fair value and included in Level 1 at June 30, 2012 of $4.6 million are principally cash settled restricted stock units (“CSRSU”) that form part of the Company's compensation program. The fair value of the Company's CSRSUs is determined using observable exchange traded prices for the Company's common shares.

Level 3 Assets and Liabilities Measured at Fair Value

Below is a summary of quantitative information regarding the significant observable and unobservable inputs (Level 3) used in determining the fair value of assets and liabilities measured at fair value on a recurring basis:

At June 30, 2012	Fair Value (Level 3)		Valuation Technique	Unobservable (U) and Observable (O) Inputs	Low			High			Weighted Average or Actual
Fixed maturity investments
Corporate	$	17,521	Discounted cash flow ("DCF")	Credit spread (U)	n/a			n/a			4.6	%
				Illiquidity premium (U)	n/a			n/a			1.0	%
				Risk-free rate (O)	n/a			n/a			0.2	%
				Dividend rate (O)	n/a			n/a			5.9	%
	10,254		Internal valuation model	Private transaction (U)	n/a			n/a			See below
Total fixed maturity investments	27,775
Other investments
Private equity partnerships	360,268		Net asset valuation	Estimated performance (U)	(19.7		)%	12.6		%	(1.4	)%
Senior secured bank loan funds	22,724		Net asset valuation	Estimated performance (U)	n/a			n/a			0.4	%
Hedge funds	6,243		Net asset valuation	Estimated performance (U)	(0.4		)%	3.0		%	1.9	%
Miscellaneous other investments	1,270		DCF	Illiquidity premium (U)	n/a			n/a			1.0	%
				Risk-free rate (O)	n/a			n/a			0.5	%
				Credit spread (U)	n/a			n/a			7.4	%
Total other investments	390,505
Other assets and (liabilities)
Assumed and ceded (re)insurance contracts	9,689		Internal valuation model	Net premiums written (O)	—			$12.3 million			See below
				Contract period (O)	183 days			365 days			See below
				Net reserve for claims and claim expenses (U)	—			—			See below
Weather and energy related derivatives	9,081		Spread option; Quanto; Black Scholes; Simulation	Correlation (U)	0			1			See below
				Volatility (U)	9.4		%	525.0		%	See below
				Commodity curve (U)	$	2.62		$	200.00		See below
				Weather curve (U)	19			5,000			See below
				Counterparty default risk (U)	0.0		%	22.5		%	See below
Other	14,165		Net asset valuation	Estimated performance (U)	n/a			n/a			See below
	1,250		Internal valuation model	Private transaction (U)	n/a			n/a			See below
Total other assets and (liabilities)	34,185
	$	452,465

Fixed Maturity Investments

Corporate

Level 3 -Included in the Company's corporate fixed maturity investments is an investment with a fair value of $17.5 million in the preferred equity of a property and casualty insurance group organized to market residential property insurance in North America. The Company measures the fair value of this investment using a DCF model and seeks to incorporate all relevant information reasonably available to it. The Company considers the contractual agreement which stipulates the methodology for calculating a dividend rate to be paid upon liquidation, conversion or redemption. At June 30, 2012, the dividend rate was 5.9%. In addition, the Company has estimated an illiquidity premium of 1.0% and a risk-free rate of 0.2%. To ensure the estimate for fair value determined using the DCF model is reasonable, the Company reviews private market comparables of similar investments, if available, and in particular, credit ratings of other private market comparables for similar investments to determine the appropriateness of its estimate of fair value using a DCF model. The fair value of the Company's investment in corporate fixed maturity investments determined by a DCF model is positively correlated to the dividend rate, and inversely correlated to the credit spread, illiquidity premium and the risk-free rate.

In addition, the Company's corporate fixed maturity investments include an investment with a fair value of $10.3 million at June 30, 2012 in the preferred equity of a company that provides insurance for a variety of veterinarian costs, including surgeries, medication and diagnostic testing. When utilizing an internal valuation model to determine the fair value of this investment, the Company uses a combination of quantitative and qualitative factors, which may include, but are not limited to, discounted cash flow analysis, financial statement analysis, budgets and forecasts, capital transactions and third party valuations. In circumstances where a private market transaction has recently occurred, the Company will evaluate the comparableness of that transaction and incorporate into its internal valuation model accordingly. Recent private market transactions of investments similar to that held by the Company have been used to determine the fair value of $10.3 million at June 30, 2012, as the Company believes it represents the price that would be received upon the sale of its investment in an orderly transaction among market participants. Consequently, should future relevant private market transactions occur, the Company will re-evaluate the information available used to determine fair value of this investment and record any adjustments to fair value in its consolidated statements of operations.

Other investments

Private equity partnerships

Level 3 - Included in the Company’s $360.3 million of investments in private equity partnerships at June 30, 2012 are alternative asset limited partnerships (or similar corporate structures) that invest in certain private equity asset classes including U.S. and global leveraged buyouts; mezzanine investments; distressed securities; real estate; and oil, gas and power. The fair value of private equity partnership investments is based on current estimated net asset values established in accordance with the governing documents of such investments and is obtained from the investment manager or general partner of the respective entity. The type of underlying investments held by the investee which form the basis of the net asset valuation include assets such as private business ventures, for which the Company does not have access to financial information. As a result, the Company is unable to corroborate the fair value measurement of the underlying investments of the private equity partnership and therefore requires significant management judgment to determine the fair value of the private equity partnership. In circumstances where there is a reporting lag between the current period end reporting date and the reporting date of the latest fund valuation, the Company estimates the fair value of these funds by starting with the prior month or quarter-end fund valuations, adjusting these valuations for actual capital calls, redemptions or distributions, as well as the impact of changes in foreign currency exchange rates, and then estimating the return for the current period. In circumstances in which the Company estimates the return for the current period, all relevant information reasonably available to the Company is utilized. This principally includes preliminary estimates reported to the Company by its fund managers, obtaining the valuation of underlying portfolio investments where such underlying investments are publicly traded and therefore have a readily observable price, using information that is available to the Company with respect to the underlying investments, reviewing various indices for similar investments or asset classes, as well as estimating returns based on the results of similar types of investments for which the Company has obtained reported results, or other valuation methods, where possible. The range of such current estimated periodic returns for the six months ended June 30, 2012 was negative 19.7% to positive 12.6% with a weighted average of negative 1.4%. The fair value of the Company's investment in private equity partnerships is positively correlated to the estimated periodic rate of return. The Company also considers factors such as recent financial information, the value of capital transactions with the partnership and management’s judgment regarding whether any adjustments should be made to the net asset value. For each respective private equity partnership, the Company obtains and reviews the valuation methodology used by the investment manager or general partner and the latest audited financial statements to ensure that the investment partnership is following fair value principles consistent with GAAP in determining the net asset value of each limited partner's interest.

Senior secured bank loan funds

Level 3 - The Company has a $22.7 million investment in a closed end fund which invests primarily in loans. The Company has no right to redeem its investment in this fund. The Company’s investment in this fund is valued using estimated monthly net asset valuations received from the investment manager. The lock up provisions in this fund result in a lack of current observable market transactions between the fund participants and the fund, and therefore, the Company considers the fair value of its investment in this fund to be determined using Level 3 inputs. The Company obtains and reviews the latest audited financial statements to attempt to ensure that the fund is following fair value principles consistent with GAAP in determining the net asset value.

Hedge funds

Level 3 - The Company has $6.2 million of hedge fund investments that are invested in so called "side pockets" or illiquid investments. In these instances, the Company generally does not have the right to redeem its interest, and as such, the Company classifies this portion of its investment as Level 3. The fair value of these illiquid investments are determined by adjusting the previous periods' reported net asset value (generally one month in arrears) for an estimated periodic rate of return obtained from the respective investment manager.

For each respective hedge fund investment, the Company obtains and reviews the valuation methodology used by the investment manager and the latest audited financial statements to ensure that the hedge fund investment is following fair value principles consistent with GAAP in determining the net asset value.

Miscellaneous other investments

Level 3 - Included in miscellaneous other investments is a loan to a third party with a fair value of $1.3 million. The Company determines the fair value of this loan using a DCF model and endeavors to incorporate all relevant information reasonably available, including the outstanding principal amount, interest rate inherent in the loan as determined using the 3-month LIBOR, credit spread and an illiquidity premium. The fair value of this loan is inversely correlated to the 3-month LIBOR, credit spread and illiquidity premium.

Other assets and liabilities

Assumed and ceded (re)insurance contracts

Level 3 - The $9.7 million fair value of the Company's assumed and ceded (re)insurance contracts accounted for at fair value is obtained through the use of an internal valuation model with the inputs to the internal valuation model based on proprietary data as observable market inputs are not available. The most significant unobservable inputs are the reserve for claims and claim expenses and losses recoverable. Generally, an increase (decrease) in the reserve for claims and claim expenses, or a decrease (increase) in losses recoverable, would result in a decrease (increase) to the fair value of the Company's assumed and ceded (re)insurance contracts.

Derivatives

Level 3 - Derivatives measured at fair value include $9.1 million of proprietary, non-exchange traded derivative-based risk management products primarily to address weather and energy risks, and hedging and trading activities related to these risks. The trading markets for these derivatives are generally linked to energy and agriculture commodities, weather and other natural phenomena and in instances where market prices are not available, the Company uses industry or internally developed valuation techniques such as spread option, Black Scholes, quanto and simulation modeling to determine fair value and are considered Level 3. These models may reference prices for similar instruments.

Observable and unobservable inputs to these valuation techniques vary by contract requirements and commodity type, are validated using market-based or independently sourced parameters where applicable and would typically include the following, if applicable, dependent on contract requirements and commodity type:

• observable inputs: contract price, notional, option strike, term to expiry, interest rate, contractual limits;

• unobservable inputs: correlation; and

• both observable and unobservable: spot and forward volatilities, forward commodity price, forward weather curve, counterparty credit risk.

The range of each unobservable input could vary based on the specific commodity, including, but not limited to natural gas, electricity, crude, liquids, temperature or precipitation. Due to the diversity of the portfolio, the range of unobservable inputs could be wide-spread as reflected in the above table on quantitative information.

If a trade has one or more significant valuation inputs that are unobservable, such trades are initially valued at the transaction price, which is considered to be the best initial estimate of fair value. Subsequent to the initial valuation, the Company updates market observable inputs to reflect observable market changes. The unobservable inputs are validated at each reporting period and are only changed when corroborated by evidence such as similar market transactions, third-party pricing services and/or broker or dealer quotations or other empirical market data. The Company seeks to use broker quotes in less liquid markets.

Changes in any or all of the unobservable inputs listed above may contribute positively or negatively to the overall portfolio fair value depending upon the underlying position. In general, movements in weather curves are the largest contributing factor that impact fair value. However, trades valued using unobservable inputs represent a small percentage of the total number of transactions in the portfolio.

Pricing models are internally approved by the Company's Risk Committee prior to implementation and are reviewed periodically.

Other

Level 3 - The Company has an investment of $14.2 million at June 30, 2012 in the common equity of a mortgage insurance company which provides private capital to lenders and investors that supports financing for homeowner mortgages. The fair value of this investment is based on the unadjusted net asset value obtained from the management of the mortgage insurance company. The fair value of the Company's investment is positively correlated to the net asset valuation. The Company also considers factors such as recent financial information, the value of capital transactions with the mortgage insurance company and management's judgment regarding whether any adjustments should be made to the net asset value.

The Company also has an investment in the preferred equity of a company that develops online risk management products primarily focused on motor fuels risk, more specifically, structuring products, sourcing the risk and facilitating the settlement of capital. The fair value of this investment at June 30, 2012 of $1.3 million was determined using recent private market transactions. In instances where private market transactions are not available, the fair value is measured using a number of qualitative and quantitative factors, including but not limited to a net asset estimation of the company, projected earnings, private market transactions, and any other information that may be available to the Company. At June 30, 2012, the Company determined that the fair value of its investment was appropriate when compared to the net asset position of the company and recent private market transactions. Should the net asset position of the company increase, the fair value of the Company's investment would also increase.

Below is a reconciliation of the beginning and ending balances, for the periods shown, of assets and liabilities measured at fair value on a recurring basis using Level 3 inputs. Interest and dividend income are included in net investment income and are excluded from the reconciliation.

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Fixed maturity investments, trading			Other investments			Other assets and (liabilities)			Total
Balance – April 1, 2012	$	27,838		$	418,537		$	48,145		$	494,520
Total unrealized losses
Included in net investment income	(63		)	(13,013		)	—			(13,076		)
Included in other income	—			—			(15,576		)	(15,576		)
Total realized gains
Included in net investment income	—			—			—			—
Included in other income	—			—			22,076			22,076
Total foreign exchange (losses) gains	—			(1,394		)	371			(1,023		)
Purchases	—			5,956			40,878			46,834
Sales	—			—			(91,655		)	(91,655		)
Settlements	—			(19,581		)	29,946			10,365
Net transfers into Level 3	—			—			—			—
Balance – June 30, 2012	$	27,775		$	390,505		$	34,185		$	452,465
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	$	(63	)	$	(13,013	)	$	—		$	(13,076	)
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	$	—		$	—		$	8,019		$	8,019

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Fixed maturity investments, trading		Other investments			Other assets and (liabilities)			Total
Balance – January 1, 2012	$	27,761	$	396,526		$	28,526		$	452,813
Total unrealized gains (losses)
Included in net investment income	14		16,094			—			16,108
Included in other loss	—		—			2,987			2,987
Total realized gains
Included in net investment income	—		—			—			—
Included in other loss	—		—			(33,232		)	(33,232		)
Total foreign exchange losses	—		(664		)	(6		)	(670		)
Purchases	—		18,645			50,159			68,804
Sales	—		—			(105,086		)	(105,086		)
Settlements	—		(40,096		)	90,837			50,741
Net transfers into Level 3	—		—			—			—
Balance – June 30, 2012	$	27,775	$	390,505		$	34,185		$	452,465
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	$	14	$	16,094		$	—		$	16,108
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	$	—	$	—		$	9,678		$	9,678

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Fixed maturity investments trading			Other investments			Other assets  and (liabilities)			Total
Balance – April 1, 2011	$	21,826		$	381,815		$	68,380		$	472,021
Total unrealized (losses) gains
Included in net investment income	(562		)	6,135			—			5,573
Included in other loss	—			—			91			91
Total realized gains
Included in net investment income	—			—			—			—
Included in other loss	—			—			3,307			3,307
Total foreign exchange losses	—			553			(91		)	462
Purchases	—			11,219			8,984			20,203
Sales	—			—			(6,864		)	(6,864		)
Settlements	—			(18,599		)	(815		)	(19,414		)
Net transfers into Level 3	—			—			—			—
Balance – June 30, 2011	$	21,264		$	381,123		$	72,992		$	475,379
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	$	(562	)	$	6,135		$	—		$	5,573
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	$	—		$	—		$	4,195		$	4,195

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Fixed maturity investments trading			Other investments			Other assets  and (liabilities)			Total
Balance – January 1, 2011	$	21,785		$	362,102		$	16,499		$	400,386
Total unrealized (losses) gains
Included in net investment income	(521		)	29,892			—			29,371
Included in other income	—			—			41,599			41,599
Total realized gains
Included in net investment income	—			—			—			—
Included in other income	—			—			12,822			12,822
Total foreign exchange losses	—			1,922			(142		)	1,780
Purchases	—			28,684			10,615			39,299
Sales	—			—			(11,024		)	(11,024		)
Settlements	—			(41,477		)	2,623			(38,854		)
Net transfers into Level 3	—			—			—			—
Balance – June 30, 2011	$	21,264		$	381,123		$	72,992		$	475,379
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in net investment income	$	(521	)	$	29,892		$	—		$	29,371
Change in unrealized gains (losses) for the period included in earnings for assets held at the end of the period included in other income (loss)	$	—		$	—		$	48,598		$	48,598

Financial Instruments Disclosed, But Not Carried, at Fair Value

The Company uses various financial instruments in the normal course of its business. The Company's insurance contracts are excluded from fair value of financial instruments accounting guidance, unless the Company elects the fair value option, and therefore, are not included in the amounts discussed herein. The carrying values of cash, accrued interest, receivables for investments sold, certain other assets, payables for investments purchased, certain other liabilities, and other financial instruments not included herein approximated their fair values.

Senior Notes

In January 2003, RenaissanceRe issued $100.0 million, which represents the carrying amount on the Company’s consolidated balance sheet, of 5.875% Senior Notes due February 15, 2013, with interest on the notes payable on February 15 and August 15 of each year. At June 30, 2012, the fair value of the 5.875% Senior Notes was $102.2 million (December 31, 2011 – $103.4 million).

In March 2010, RenRe North America Holdings Inc. (“RRNAH”) issued $250.0 million of 5.75% Senior Notes due March 15, 2020, with interest on the notes payable on March 15 and September 15 of each year. At June 30, 2012, the fair value of the 5.75% Senior Notes was $264.1 million (December 31, 2011 - $263.0 million).

The fair value of RenaissanceRe’s 5.875% Senior Notes and RRNAH’s 5.75% Senior Notes is determined using indicative market pricing obtained from third-party service providers, which the Company considers Level 2 in the fair value hierarchy. There have been no changes during the period in the Company's valuation technique used to determine the fair value of its Senior Notes.

The Fair Value Option for Financial Assets and Financial Liabilities

The Company has elected to account for certain assets and liabilities at fair value using the guidance under FASB ASC Topic Financial Instruments as the Company believes it represents the most meaningful measurement basis for these assets and liabilities. Below is a summary of the balances the Company has elected to account for at fair value:

	June 30, 2012		December 31, 2011
Other investments	$	743,568	$	748,984
Other assets	$	25,104	$	19,628

Included in net investment income for the three and six months endedJune 30, 2012 was net unrealized (losses) gains of $(13.4) millionand$21.9 million related to the changes in fair value of other investments (2011 – $5.7 millionand$33.7 million, respectively). Net unrealized losses related to the changes in the fair value of other assets and liabilities recorded in other (loss) income was $0.4 millionand$2.5 million for the three and six months endedJune 30, 2012 (2011 – $(0.8) millionand$43.3 million, respectively).

Measuring the Fair Value of Other Investments Using Net Asset Valuations

The table below shows the Company’s portfolio of other investments measured using net asset valuations:

At June 30, 2012	Fair Value		Unfunded Commitments		Redemption Frequency	Redemption Notice Period (Minimum Days)	Redemption Notice Period (Maximum Days)
Private equity partnerships	$	360,268	$	99,125	See below	See below	See below
Senior secured bank loan funds	269,317		2,901		See below	See below	See below
Hedge funds	6,243		—		See below	See below	See below
Total other investments measured using net asset valuations	$	635,828	$	102,026

Private equity partnerships – Included in the Company’s investments in private equity partnerships are alternative asset limited partnerships (or similar corporate structures) that invest in certain private equity asset classes including U.S. and global leveraged buyouts; mezzanine investments; distressed securities; real estate; and oil, gas and power. The fair values of the investments in this category have been estimated using the net asset value of the investments, as discussed in detail above. The Company generally has no right to redeem its interest in any of these private equity partnerships in advance of dissolution of the applicable partnership. Instead, the nature of these investments is that distributions are received by the Company in connection with the liquidation of the underlying assets of the applicable limited partnership. It is estimated that the majority of the underlying assets of the limited partnerships would liquidate over 7 to 10 years from inception of the limited partnership.

Senior secured bank loan funds – The Company’s investment in senior secured bank loan funds includes funds that invest primarily in bank loans and other senior debt instruments. The fair values of the investments in this category have been determined using the net asset value per share of the funds or the estimated net asset per share where applicable, as discussed in detail above. Investments of $246.6 million are redeemable, in part on a monthly basis, or in whole over a three month period.

The Company also has a $22.7 million investment in a closed end fund which invests in loans. The Company has no right to redeem its investment in this fund.

Hedge funds – The Company invests in hedge funds that pursue multiple strategies. The fair values of the investments in this category are estimated using the net asset value per share of the funds, as discussed in detail above. The remaining portion of the Company's investments in hedge funds at June 30, 2012, are $6.2 million of so called “side pocket” investments which are not redeemable at the option of the shareholder. As noted above, the Company fully redeemed the remaining non-side pocket investments in hedge funds during June 2012. The Company has retained its interest in the side pocket investments until the underlying investments attributable to such side pockets are liquidated, realized or deemed realized at the discretion of the fund manager.

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Investments

6 Months Ended

Jun. 30, 2012

Investments [Abstract]

Investments

INVESTMENTS

Fixed Maturity Investments Trading

The following table summarizes the fair value of fixed maturity investments trading:

	June 30, 2012		December 31, 2011
U.S. treasuries	$	1,126,759	$	885,152
Agencies	436,691		158,561
Non-U.S. government (Sovereign debt)	172,008		216,916
FDIC guaranteed corporate	29,386		423,630
Non-U.S. government-backed corporate	393,875		640,757
Corporate	1,652,007		1,187,437
Agency mortgage-backed	580,971		428,042
Non-agency mortgage-backed	135,268		82,096
Commercial mortgage-backed	414,524		255,885
Asset-backed	7,466		12,989
Total fixed maturity investments trading	$	4,948,955	$	4,291,465

Fixed Maturity Investments Available For Sale

The following table summarizes the amortized cost, fair value and related unrealized gains and losses and non-credit other-than-temporary impairments of fixed maturity investments available for sale:

			Included in Accumulated Other Comprehensive Income
At June 30, 2012	Amortized  Cost		Gross Unrealized     Gains		Gross Unrealized     Losses			Fair Value		Non-Credit Other-Than- Temporary Impairments  (1)
Non-U.S. government (Sovereign debt)	$	5,000	$	223	$	—		$	5,223	$	—
Corporate	11,815		1,010		(110		)	12,715		75
Agency mortgage-backed	10,478		906		—			11,384		—
Non-agency mortgage-backed	15,929		2,496		(19		)	18,406		891
Commercial mortgage-backed	48,926		6,717		—			55,643		—
Asset-backed	4,499		232		—			4,731		—
Total fixed maturity investments available for sale	$	96,647	$	11,584	$	(129	)	$	108,102	$	966

			Included in Accumulated Other Comprehensive Income
At December 31, 2011	Amortized Cost		Gross Unrealized     Gains		Gross Unrealized     Losses			Fair Value		Non-Credit Other-Than- Temporary Impairments  (1)
Non-U.S. government (Sovereign debt)	$	10,087	$	921	$	(12	)	$	10,996	$	—
Non-U.S. government-backed corporate	312		13		—			325		—
Corporate	18,449		1,535		(517		)	19,467		(176		)
Agency mortgage-backed	12,636		1,071		—			13,707		—
Non-agency mortgage-backed	21,097		1,862		(284		)	22,675		(1,837		)
Commercial mortgage-backed	63,269		6,576		(1		)	69,844		—
Asset-backed	4,819		219		—			5,038		—
Total fixed maturity investments available for sale	$	130,669	$	12,197	$	(814	)	$	142,052	$	(2,013	)

(1) Represents the non-credit component of other-than-temporary impairments recognized in accumulated other comprehensive income since the adoption of guidance related to the recognition and presentation of other-than-temporary impairments under FASB ASC Topic Financial Instruments – Debt and Equity Securities, during the second quarter of 2009, adjusted for subsequent sales of securities. It does not include the change in fair value subsequent to the impairment measurement date.

Contractual maturities of fixed maturity investments are as follows. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Trading				Available for Sale				Total Fixed Maturity Investments
At June 30, 2012	Amortized  Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in less than one year	$	405,210	$	405,547	$	112	$	89	$	405,322	$	405,636
Due after one through five years	2,606,528		2,615,915		8,358		8,761		2,614,886		2,624,676
Due after five through ten years	625,279		646,130		6,200		6,779		631,479		652,909
Due after ten years	130,574		143,134		2,145		2,309		132,719		145,443
Mortgage-backed	1,115,304		1,130,763		75,333		85,433		1,190,637		1,216,196
Asset-backed	7,356		7,466		4,499		4,731		11,855		12,197
Total	$	4,890,251	$	4,948,955	$	96,647	$	108,102	$	4,986,898	$	5,057,057

Equity Investments Trading

The following table summarizes the fair value of equity investments trading:

	June 30, 2012		December 31, 2011
Financial institution securities	$	55,381	$	50,560

Pledged Investments

At June 30, 2012, $1,330.9 million of cash and investments at fair value were on deposit with, or in trust accounts for the benefit of various counterparties, including with respect to the Company's principal letter of credit facility. Of this amount, $522.6 million is on deposit with, or in trust accounts for the benefit of, U.S. state regulatory authorities.

Net Investment Income, Net Realized and Unrealized Gains on Investments and Net Other-Than-Temporary Impairments

The components of net investment income are as follows:

Three months ended June 30,	2012			2011
Fixed maturity investments	$	22,436		$	24,426
Short term investments	234			433
Equity investments	181			112
Other investments
Hedge funds and private equity investments	(10,413		)	8,230
Other	4,975			2,838
Cash and cash equivalents	54			45
	17,467			36,084
Investment expenses	(2,724		)	(2,756		)
Net investment income	$	14,743		$	33,328

Six months ended June 30,	2012			2011
Fixed maturity investments	$	48,769		$	52,339
Short term investments	734			1,028
Equity investments	351			126
Other investments
Hedge funds and private equity investments	18,060			31,737
Other	19,145			13,665
Cash and cash equivalents	80			86
	87,139			98,981
Investment expenses	(5,425		)	(5,372		)
Net investment income	$	81,714		$	93,609

Net realized and unrealized gains on investments and net other-than-temporary impairments are as follows:

Three months ended June 30,	2012			2011
Gross realized gains	$	19,458		$	15,430
Gross realized losses	(3,294		)	(4,156		)
Net realized gains on fixed maturity investments	16,164			11,274
Net unrealized gains on fixed maturity investments trading	12,538			24,728
Net unrealized gains (losses) on equity investments trading	2,301			(1,023		)
Net realized and unrealized gains on investments	$	31,003		$	34,979
Total other-than-temporary impairments	$	(234	)	$	—
Portion recognized in other comprehensive income, before taxes	25			—
Net other-than-temporary impairments	$	(209	)	$	—

Six months ended June 30,	2012			2011
Gross realized gains	$	55,744		$	25,992
Gross realized losses	(10,244		)	(16,773		)
Net realized gains on fixed maturity investments	45,500			9,219
Net unrealized gains on fixed maturity investments trading	26,795			20,970
Net unrealized gains on equity investments trading	4,821			(424		)
Net realized and unrealized gains on investments	$	77,116		$	29,765
Total other-than-temporary impairments	$	(395	)	$	—
Portion recognized in other comprehensive income, before taxes	52			—
Net other-than-temporary impairments	$	(343	)	$	—

The following table provides an analysis of the length of time the Company’s fixed maturity investments available for sale in an unrealized loss have been in a continual unrealized loss position.

	Less than 12 Months					12 Months or Greater					Total
At June 30, 2012	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Corporate	$	1,424	$	(49	)	$	513	$	(61	)	$	1,937	$	(110	)
Non-agency mortgage-backed	—		—			98		(19		)	98		(19		)
Total	$	1,424	$	(49	)	$	611	$	(80	)	$	2,035	$	(129	)

	Less than 12 Months					12 Months or Greater					Total
At December 31, 2011	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Non-U.S. government (Sovereign debt)	$	915	$	(9	)	$	42	$	(3	)	$	957	$	(12	)
Corporate	3,935		(385		)	412		(132		)	4,347		(517		)
Non-agency mortgage-backed	8,024		(224		)	798		(60		)	8,822		(284		)
Commercial mortgage-backed	—		—			455		(1		)	455		(1		)
Total	$	12,874	$	(618	)	$	1,707	$	(196	)	$	14,581	$	(814	)

At June 30, 2012, the Company held 44 fixed maturity investments available for sale securities that were in an unrealized loss position, including 13 fixed maturity investments available for sale securities that were in an unrealized loss position for twelve months or greater. The Company does not intend to sell these securities and it is not more likely than not that the Company will be required to sell these securities before the anticipated recovery of the remaining amortized cost basis. The Company performed reviews of its fixed maturity investments available for sale for the six months endedJune 30, 2012 and 2011, respectively, in order to determine whether declines in the fair value below the amortized cost basis were considered other-than-temporary in accordance with the applicable guidance, as discussed below.

Other-Than-Temporary Impairment Process

The Company's process for assessing whether declines in the fair value of its fixed maturity investments available for sale represent impairments that are other-than-temporary includes reviewing each fixed maturity investment available for sale that is impaired and determining: (i) if the Company has the intent to sell the debt security or (ii) if it is more likely than not that the Company will be required to sell the debt security before its anticipated recovery; and (iii) whether a credit loss exists, that is, where the Company expects that the present value of the cash flows expected to be collected from the security are less than the amortized cost basis of the security.

In assessing the Company’s intent to sell securities, the Company’s procedures may include actions such as discussing planned sales with its third party investment managers, reviewing sales that have occurred shortly after the balance sheet date, and consideration of other qualitative factors that may be indicative of the Company’s intent to sell or hold the relevant securities. For the six months endedJune 30, 2012, the Company recognized $Nil other-than-temporary impairments due to the Company’s intent to sell these securities as of June 30, 2012 (2011 – $Nil).

In assessing whether it is more likely than not that the Company will be required to sell a security before its anticipated recovery, the Company considers various factors including its future cash flow forecasts and requirements, legal and regulatory requirements, the level of its cash, cash equivalents, short term investments, fixed maturity investments trading and fixed maturity investments available for sale in an unrealized gain position, and other relevant factors. For the six months endedJune 30, 2012, the Company recognized $Nil of other-than-temporary impairments due to required sales (2011 – $Nil).

In evaluating credit losses, the Company considers a variety of factors in the assessment of a security including: (i) the time period during which there has been a significant decline below cost; (ii) the extent of the decline below cost and par; (iii) the potential for the security to recover in value; (iv) an analysis of the financial condition of the issuer; (v) the rating of the issuer; (vi) the implied rating of the issuer based on an analysis of option adjusted spreads; (vii) the absolute level of the option adjusted spread for the issuer; and (viii) an analysis of the collateral structure and credit support of the security, if applicable.

Once the Company determines that it is possible that a credit loss may exist for a security, the Company performs a detailed review of the cash flows expected to be collected from the issuer. The Company estimates expected cash flows by applying estimated default probabilities and recovery rates to the contractual cash flows of the issuer, with such default and recovery rates reflecting long-term historical averages adjusted to reflect current credit, economic and market conditions, giving due consideration to collateral and credit support, if applicable, and discounting the expected cash flows at the purchase yield on the security. In instances in which a determination is made that an impairment exists but the Company does not intend to sell the security and it is not more likely than not that the Company will be required to sell the security before the anticipated recovery of its remaining amortized cost basis, the impairment is separated into: (i) the amount of the total other-than-temporary impairment related to the credit loss; and (ii) the amount of the total other-than-temporary impairment related to all other factors. The amount of the other-than-temporary impairment related to the credit loss is recognized in earnings. The amount of the other-than-temporary impairment related to all other factors is recognized in other comprehensive income. For the six months endedJune 30, 2012, the Company recognized $0.3 million of other-than-temporary impairments which were recognized in earnings and $52 thousand related to other factors which were recognized in other comprehensive income (2011 – $Nil and $Nil, respectively).

The following table provides a rollforward of the amount of other-than-temporary impairments related to credit losses recognized in earnings for which a portion of an other-than-temporary impairment was recognized in accumulated other comprehensive income:

	2012			2011
Balance – April 1	$	520		$	2,875
Additions:
Amount related to credit loss for which an other-than-temporary impairment was not previously recognized	11			—
Amount related to credit loss for which an other-than-temporary impairment was previously recognized	41			—
Reductions:
Securities sold during the period	(396		)	(246		)
Securities for which the amount previously recognized in other comprehensive income was recognized in earnings, because the Company intends to sell the security or is more likely than not the Company will be required to sell the security	—			—
Increases in cash flows expected to be collected that are recognized over the remaining life of the security	—			—
Balance – June 30	$	176		$	2,629

	2012			2011
Balance – January 1	$	564		$	3,098
Additions:
Amount related to credit loss for which an other-than-temporary impairment was not previously recognized	11			—
Amount related to credit loss for which an other-than-temporary impairment was previously recognized	50			—
Reductions:
Securities sold during the period	(449		)	(469		)
Securities for which the amount previously recognized in other comprehensive income was recognized in earnings, because the Company intends to sell the security or is more likely than not the Company will be required to sell the security	—			—
Increases in cash flows expected to be collected that are recognized over the remaining life of the security	—			—
Balance – June 30	$	176		$	2,629

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Investments (Tables)

6 Months Ended

Jun. 30, 2012

Investments [Abstract]

Schedule Of Fair Value Of Fixed Maturity Investments Trading

The following table summarizes the fair value of fixed maturity investments trading:

	June 30, 2012		December 31, 2011
U.S. treasuries	$	1,126,759	$	885,152
Agencies	436,691		158,561
Non-U.S. government (Sovereign debt)	172,008		216,916
FDIC guaranteed corporate	29,386		423,630
Non-U.S. government-backed corporate	393,875		640,757
Corporate	1,652,007		1,187,437
Agency mortgage-backed	580,971		428,042
Non-agency mortgage-backed	135,268		82,096
Commercial mortgage-backed	414,524		255,885
Asset-backed	7,466		12,989
Total fixed maturity investments trading	$	4,948,955	$	4,291,465

Schedule Of Fair Value Of Fixed Maturity Investments Available For Sale

The following table summarizes the amortized cost, fair value and related unrealized gains and losses and non-credit other-than-temporary impairments of fixed maturity investments available for sale:

			Included in Accumulated Other Comprehensive Income
At June 30, 2012	Amortized  Cost		Gross Unrealized     Gains		Gross Unrealized     Losses			Fair Value		Non-Credit Other-Than- Temporary Impairments  (1)
Non-U.S. government (Sovereign debt)	$	5,000	$	223	$	—		$	5,223	$	—
Corporate	11,815		1,010		(110		)	12,715		75
Agency mortgage-backed	10,478		906		—			11,384		—
Non-agency mortgage-backed	15,929		2,496		(19		)	18,406		891
Commercial mortgage-backed	48,926		6,717		—			55,643		—
Asset-backed	4,499		232		—			4,731		—
Total fixed maturity investments available for sale	$	96,647	$	11,584	$	(129	)	$	108,102	$	966

			Included in Accumulated Other Comprehensive Income
At December 31, 2011	Amortized Cost		Gross Unrealized     Gains		Gross Unrealized     Losses			Fair Value		Non-Credit Other-Than- Temporary Impairments  (1)
Non-U.S. government (Sovereign debt)	$	10,087	$	921	$	(12	)	$	10,996	$	—
Non-U.S. government-backed corporate	312		13		—			325		—
Corporate	18,449		1,535		(517		)	19,467		(176		)
Agency mortgage-backed	12,636		1,071		—			13,707		—
Non-agency mortgage-backed	21,097		1,862		(284		)	22,675		(1,837		)
Commercial mortgage-backed	63,269		6,576		(1		)	69,844		—
Asset-backed	4,819		219		—			5,038		—
Total fixed maturity investments available for sale	$	130,669	$	12,197	$	(814	)	$	142,052	$	(2,013	)

(1) Represents the non-credit component of other-than-temporary impairments recognized in accumulated other comprehensive income since the adoption of guidance related to the recognition and presentation of other-than-temporary impairments under FASB ASC Topic Financial Instruments – Debt and Equity Securities, during the second quarter of 2009, adjusted for subsequent sales of securities. It does not include the change in fair value subsequent to the impairment measurement date.

Schedule Of Contractual Maturities Of Fixed Maturity Investments

Contractual maturities of fixed maturity investments are as follows. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Trading				Available for Sale				Total Fixed Maturity Investments
At June 30, 2012	Amortized  Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in less than one year	$	405,210	$	405,547	$	112	$	89	$	405,322	$	405,636
Due after one through five years	2,606,528		2,615,915		8,358		8,761		2,614,886		2,624,676
Due after five through ten years	625,279		646,130		6,200		6,779		631,479		652,909
Due after ten years	130,574		143,134		2,145		2,309		132,719		145,443
Mortgage-backed	1,115,304		1,130,763		75,333		85,433		1,190,637		1,216,196
Asset-backed	7,356		7,466		4,499		4,731		11,855		12,197
Total	$	4,890,251	$	4,948,955	$	96,647	$	108,102	$	4,986,898	$	5,057,057

Schedule Of Fair Value Of Equity Investments Trading

The following table summarizes the fair value of equity investments trading:

	June 30, 2012		December 31, 2011
Financial institution securities	$	55,381	$	50,560

Schedule Of Net Investment Income

The components of net investment income are as follows:

Three months ended June 30,	2012			2011
Fixed maturity investments	$	22,436		$	24,426
Short term investments	234			433
Equity investments	181			112
Other investments
Hedge funds and private equity investments	(10,413		)	8,230
Other	4,975			2,838
Cash and cash equivalents	54			45
	17,467			36,084
Investment expenses	(2,724		)	(2,756		)
Net investment income	$	14,743		$	33,328

Six months ended June 30,	2012			2011
Fixed maturity investments	$	48,769		$	52,339
Short term investments	734			1,028
Equity investments	351			126
Other investments
Hedge funds and private equity investments	18,060			31,737
Other	19,145			13,665
Cash and cash equivalents	80			86
	87,139			98,981
Investment expenses	(5,425		)	(5,372		)
Net investment income	$	81,714		$	93,609

Schedule Of Net Realized And Unrealized Gains On Investments And Net Other-Than-Temporary Impairments

Net realized and unrealized gains on investments and net other-than-temporary impairments are as follows:

Three months ended June 30,	2012			2011
Gross realized gains	$	19,458		$	15,430
Gross realized losses	(3,294		)	(4,156		)
Net realized gains on fixed maturity investments	16,164			11,274
Net unrealized gains on fixed maturity investments trading	12,538			24,728
Net unrealized gains (losses) on equity investments trading	2,301			(1,023		)
Net realized and unrealized gains on investments	$	31,003		$	34,979
Total other-than-temporary impairments	$	(234	)	$	—
Portion recognized in other comprehensive income, before taxes	25			—
Net other-than-temporary impairments	$	(209	)	$	—

Six months ended June 30,	2012			2011
Gross realized gains	$	55,744		$	25,992
Gross realized losses	(10,244		)	(16,773		)
Net realized gains on fixed maturity investments	45,500			9,219
Net unrealized gains on fixed maturity investments trading	26,795			20,970
Net unrealized gains on equity investments trading	4,821			(424		)
Net realized and unrealized gains on investments	$	77,116		$	29,765
Total other-than-temporary impairments	$	(395	)	$	—
Portion recognized in other comprehensive income, before taxes	52			—
Net other-than-temporary impairments	$	(343	)	$	—

Schedule Of Fixed Maturity Investments Available For Sale In Continual Unrealized Loss Position

The following table provides an analysis of the length of time the Company’s fixed maturity investments available for sale in an unrealized loss have been in a continual unrealized loss position.

	Less than 12 Months					12 Months or Greater					Total
At June 30, 2012	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Corporate	$	1,424	$	(49	)	$	513	$	(61	)	$	1,937	$	(110	)
Non-agency mortgage-backed	—		—			98		(19		)	98		(19		)
Total	$	1,424	$	(49	)	$	611	$	(80	)	$	2,035	$	(129	)

	Less than 12 Months					12 Months or Greater					Total
At December 31, 2011	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Non-U.S. government (Sovereign debt)	$	915	$	(9	)	$	42	$	(3	)	$	957	$	(12	)
Corporate	3,935		(385		)	412		(132		)	4,347		(517		)
Non-agency mortgage-backed	8,024		(224		)	798		(60		)	8,822		(284		)
Commercial mortgage-backed	—		—			455		(1		)	455		(1		)
Total	$	12,874	$	(618	)	$	1,707	$	(196	)	$	14,581	$	(814	)

Rollforward Of The Amount Of Other-Than-Temporary Impairments Related To Credit Losses Recognized in Earnings For Which A Portion Of An Other-Than-Temporary Impairment Was Recognized In Accumulated Other Comprehensive Income

The following table provides a rollforward of the amount of other-than-temporary impairments related to credit losses recognized in earnings for which a portion of an other-than-temporary impairment was recognized in accumulated other comprehensive income:

	2012			2011
Balance – April 1	$	520		$	2,875
Additions:
Amount related to credit loss for which an other-than-temporary impairment was not previously recognized	11			—
Amount related to credit loss for which an other-than-temporary impairment was previously recognized	41			—
Reductions:
Securities sold during the period	(396		)	(246		)
Securities for which the amount previously recognized in other comprehensive income was recognized in earnings, because the Company intends to sell the security or is more likely than not the Company will be required to sell the security	—			—
Increases in cash flows expected to be collected that are recognized over the remaining life of the security	—			—
Balance – June 30	$	176		$	2,629

	2012			2011
Balance – January 1	$	564		$	3,098
Additions:
Amount related to credit loss for which an other-than-temporary impairment was not previously recognized	11			—
Amount related to credit loss for which an other-than-temporary impairment was previously recognized	50			—
Reductions:
Securities sold during the period	(449		)	(469		)
Securities for which the amount previously recognized in other comprehensive income was recognized in earnings, because the Company intends to sell the security or is more likely than not the Company will be required to sell the security	—			—
Increases in cash flows expected to be collected that are recognized over the remaining life of the security	—			—
Balance – June 30	$	176		$	2,629

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Derivative Instruments

6 Months Ended

Jun. 30, 2012

Summary of Derivative Instruments [Abstract]

Derivative Instruments

DERIVATIVE INSTRUMENTS

The Company enters into derivative instruments such as futures, options, swaps, forward contracts and other derivative contracts primarily to manage its foreign currency exposure, obtain exposure to a particular financial market, for yield enhancement, or for trading and speculation. The Company accounts for its derivatives in accordance with FASB ASC Topic Derivatives and Hedging, which requires all derivatives to be recorded at fair value on the Company's balance sheet as either assets or liabilities, depending on the rights or obligations of the derivatives, with changes in fair value reflected in current earnings. The Company does not currently apply hedge accounting in respect of any positions reflected in its consolidated financial statements. Where the Company has entered into master netting agreements with counterparties, or the Company has the legal and contractual right to offset positions, the derivative positions are generally netted by counterparty and are reported accordingly in other assets and other liabilities.

The table below shows the location on the consolidated balance sheets and fair value of the Company’s principal derivative instruments:

	Derivative Assets
	June 30, 2012			December 31, 2011
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate futures	Other assets	$	2,301	Other assets	$	612
Foreign currency forward contracts (1)	Other assets	4,278		Other assets	—
Foreign currency forward contracts (2)	Other liabilities	3,359		Other liabilities	7,219
Foreign currency forward contracts (3)	Other assets	—		Other assets	387
Credit default swaps	Other assets	491		Other assets	—
Energy and weather contracts (4)	Other assets	27,516		Other assets	52,721
Total		$	37,945		$	60,939
	Derivative Liabilities
	June 30, 2012			December 31, 2011
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate futures	Other liabilities	$	289	Other liabilities	$	339
Foreign currency forward contracts (1)	Other liabilities	4,987		Other liabilities	11,754
Foreign currency forward contracts (2)	Other liabilities	3,684		Other liabilities	1,606
Foreign currency forward contracts (3)	Other assets	175		Other assets	—
Credit default swaps	Other liabilities	536		Other liabilities	539
Energy and weather contracts (4)	Other liabilities	13,522		Other liabilities	43,389
Total		$	23,193		$	57,627

(1) Contracts used to manage foreign currency risks in underwriting and non-investment operations.

(2) Contracts used to manage foreign currency risks in investment operations. Included in other liabilities are derivative assets of $3.4 million (December 31, 2011 – $7.2 million) which are netted with derivative liabilities of $3.7 million (December 31, 2011 – $1.6 million) under a master netting arrangements.

(3) Contracts used to manage foreign currency risks in energy and risk operations.

(4) Included in other assets is $56.8 million of derivative assets (December 31, 2011 – $104.6 million) and $29.3 million of derivative liabilities (December 31, 2011 – $51.9 million). Included in other liabilities is $5.2 million of derivative assets (December 31, 2011 – $8.8 million) and $18.7 million of derivative liabilities (December 31, 2011 – $52.2 million).

The location and amount of the gain (loss) recognized in the Company’s consolidated statements of operations related to its derivative instruments is shown in the following table:

	Location of gain (loss) recognized on derivatives	Amount of gain (loss) recognized on derivatives
Three months ended June 30,		2012			2011
Interest rate futures	Net investment income	$	(2,847	)	$	(7,693	)
Foreign currency forward contracts (1)	Net foreign exchange gains (losses)	(2,183		)	9,208
Foreign currency forward contracts (2)	Net foreign exchange gains (losses)	1,899			(7,752		)
Foreign currency forward contracts (3)	Net foreign exchange gains (losses)	376			(212		)
Credit default swaps	Net investment income	(24		)	420
Energy and weather contracts	Other income (loss)	11,987			1,429
Total		$	9,208		$	(4,600	)

	Location of gain (loss) recognized on derivatives	Amount of gain (loss) recognized on derivatives
Six months ended June 30,		2012			2011
Interest rate futures	Net investment income	$	(1,817	)	$	(8,347	)
Foreign currency forward contracts (1)	Net foreign exchange gains (losses)	1,369			17,007
Foreign currency forward contracts (2)	Net foreign exchange gains (losses)	(2,349		)	(21,152		)
Foreign currency forward contracts (3)	Net foreign exchange gains (losses)	513			(648		)
Credit default swaps	Net investment income	534			1,142
Energy and weather contracts	Other income (loss)	(16,726		)	9,929
Platinum warrant	Other income (loss)	—			2,975
Total		$	(18,476	)	$	906

(1) Contracts used to manage foreign currency risks in underwriting and non-investment operations.

(2) Contracts used to manage foreign currency risks in investment operations.

(3) Contracts used to manage foreign currency risks in energy and risk operations.

The Company is not aware of the existence of any credit-risk related contingent features that it believes would be triggered in its derivative instruments that are in a net liability position at June 30, 2012.

Interest Rate Futures

The Company uses interest rate futures within its portfolio of fixed maturity investments to manage its exposure to interest rate risk, which can include increasing or decreasing its exposure to this risk. At June 30, 2012, the Company had $360.2 million of notional long positions and $303.7 million of notional short positions of primarily Eurodollar, U.S. treasury and non-U.S. dollar futures contracts (December 31, 2011 – $3.2 billion and $285.7 million, respectively). The fair value of these derivatives is determined using exchange traded prices.

Foreign Currency Derivatives

The Company’s functional currency is the U.S. dollar. The Company writes a portion of its business in currencies other than U.S. dollars and may, from time to time, experience foreign exchange gains and losses in the Company’s consolidated financial statements. All changes in exchange rates, with the exception of non-U.S. dollar denominated investments classified as available for sale and non-monetary assets and liabilities, are recognized currently in the Company’s consolidated statements of operations.

Underwriting Operations Related Foreign Currency Contracts

The Company’s foreign currency policy with regard to its underwriting operations is generally to hold foreign currency assets, including cash, investments and receivables that approximate the foreign currency liabilities, including claims and claim expense reserves and reinsurance balances payable. When necessary, the Company may use foreign currency forward and option contracts to minimize the effect of fluctuating foreign currencies on the value of non-U.S. dollar denominated assets and liabilities associated with its underwriting operations. The fair value of the Company's underwriting operations related foreign currency contracts is determined using indicative pricing obtained from counterparties or broker quotes. At June 30, 2012, the Company had outstanding underwriting related foreign currency contracts of $179.7 million in notional long positions and $503.4 million notional in short positions, denominated in U.S. dollars (December 31, 2011 – $160.5 million and $700.8 million, respectively).

Investment Portfolio Related Foreign Currency Forward Contracts

The Company’s investment operations are exposed to currency fluctuations through its investments in non-U.S. dollar fixed maturity investments, short term investments and other investments. To economically hedge its exposure to currency fluctuations from these investments, the Company has entered into foreign currency forward contracts. Foreign exchange gains (losses) associated with the Company’s hedging of these non-U.S. dollar investments are recorded in net foreign exchange (losses) gains in its consolidated statements of operations. The fair value of the Company's investment portfolio related foreign currency forward contracts is determined using an interpolated rate based on closing forward market rates. At June 30, 2012, the Company had outstanding investment portfolio related foreign currency contracts of $198.3 million in notional long positions and $284.6 million in notional short positions, denominated in U.S. dollars (December 31, 2011 – $48.1 million and $211.6 million, respectively).

Energy and Risk Operations Related Foreign Currency Contracts

The Company’s energy and risk operations are exposed to currency fluctuations through certain derivative transactions it enters into that are denominated in non-U.S. dollars. The Company may, from time to time, use foreign currency forward and option contracts to minimize the effect of fluctuating foreign currencies on the value of non-U.S. dollar denominated assets and liabilities associated with these operations. The fair value of the Company's energy and risk operations related foreign currency contracts is based on exchange traded prices. At June 30, 2012, the Company’s energy and risk operations had foreign currency contracts of $Nil in notional long positions and $16.7 million in notional short positions (December 31, 2011 – $7.8 million and $12.7 million, respectively).

Credit Derivatives

The Company’s exposure to credit risk is primarily due to its fixed maturity investments, short term investments, premiums receivable and reinsurance recoverable.  From time to time, the Company purchases credit derivatives to hedge its exposures in the insurance industry, and to assist in managing the credit risk associated with ceded reinsurance.  The Company also employs credit derivatives in its investment portfolio to either assume credit risk or hedge its credit exposure. The fair value of the credit derivatives is determined using industry valuation models, broker bid indications or internal pricing valuation techniques.  The fair value of these credit derivatives can change based on a variety of factors including changes in credit spreads, default rates and recovery rates, the correlation of credit risk between the referenced credit and the counterparty, and market rate inputs such as interest rates. At June 30, 2012, the Company had outstanding credit derivatives of $15.0 million in notional long positions and $24.4 million in notional short positions, denominated in U.S. dollars (December 31, 2011 – $15.0 million and $38.1 million, respectively).

Energy and Weather-Related Derivatives

The Company regularly transacts in certain derivative-based risk management products primarily to address weather and energy risks and engages in hedging and trading activities related to these risks. The trading markets for these derivatives are generally linked to energy and agriculture commodities, weather and other natural phenomena. Currently, a percentage of the Company’s derivative-based risk management products are transacted on a dual-trigger basis combining weather or other natural phenomenon, with prices for commodities or securities related to energy or agriculture. The fair value of these contracts is obtained through the use of quoted market prices, or in the absence of such quoted prices, industry or internal valuation models. Generally, the Company’s current portfolio of such derivative contracts is of comparably short duration and such contracts are predominantly seasonal in nature. Over time, the Company currently expects that its participation in these markets, and the impact of these operations on its financial results, is likely to increase on both an absolute and relative basis.

As of the dates set forth below, the Company had the following gross derivative contract positions outstanding relating to its energy and weather derivatives trading activities.

	Quantity (1)
	June 30, 2012	December 31, 2011	Unit of measurement
Energy	170,095,670	240,363,364	One million British thermal units (“MMBTUs")
Temperature	24,141,394	14,917,438	$ per Degree Day Fahrenheit
Agriculture	29,798,000	6,098,000	Bushels
Precipitation	1,799,475	65,000	$ per Inch
Wind	146	712	$ per Meters per Second Hour

(1) Represents the sum of gross long and gross short derivative contracts.

The Company uses, among other things, value-at-risk (“VaR”) analysis to monitor the risks associated with its energy and weather derivatives trading portfolio. VaR is a tool that measures the potential loss that could occur if the Company's trading positions were maintained over a defined period of time, calculated at a given statistical confidence level. Due to the seasonal nature of the Company's energy and weather derivatives trading activities, the VaR is based on a rolling two season (one-year) holding period assuming no dynamic trading during the holding period. A 99% confidence level is used for the VaR analysis. A 99% confidence level implies that within a one-year period, the potential loss in the Company's portfolio is not expected to exceed the VaR estimate in 99% of the possible modeled outcomes. In the remaining estimated 1% of the possible outcomes, the anticipated potential loss is expected to be higher than the VaR figure, and on average substantially higher.

The VaR model, based on a Monte Carlo simulation methodology, seeks to take into account correlations between different positions and potential for movements to offset one another within the portfolio. The expected value of the risk factors in the Company's portfolio is generally obtained from exchange-traded futures markets. For most of the risk factors, the volatility is derived from exchange-traded options markets. For those risk factors for which exchange-traded options might not exist, the volatility is based on historical analysis matched to broker quotes from the over-the-counter market, where available. The joint distribution of outcomes is based on our estimate of the historical seasonal dependence among the underlying risk factors, scaled to the current market levels. The Company then estimates the expected outcomes by applying a Monte Carlo simulation to these risk factors. The joint distribution of the simulated risk factors is then filtered through the portfolio positions, and then the distribution of the outcomes is realized. The 99^thpercentile of this distribution is then calculated as the portfolio VaR. Among the significant limitations of this methodology is that the market data used to forecast parameters of the model may not be an appropriate proxy of those parameters. The VaR methodology uses a number of assumptions, such as (i) risks are measured under average market conditions, assuming normal distribution of market risk factors, (ii) future movements in market risk factors follow estimated historical movements, and (iii) the assessed exposures do not change during the holding period. We believe the VaR methodology has utility but do not derive absolute assurance from it. Accordingly, there is no guarantee that these assumptions will prove correct and actual outcomes may vary, perhaps substantially and adversely. The Company expects that, for any given period, its actual results will differ from its assumptions, including with respect to previously estimated potential losses and that such losses could be substantially higher than the estimated VaR.

At June 30, 2012, the estimated VaR for the Company's portfolio of energy and weather-related derivatives, as described above, calculated at an estimated 99% confidence level, was $42.0 million. The average, low and high amounts calculated by the Company's VaR analysis during the six months ended June 30, 2012 were $26.4 million, $13.0 million and $49.3 million, respectively.

At June 30, 2012, RenaissanceRe had provided guarantees in the aggregate amount of $354.3 million to certain counterparties of the weather and energy risk operations of Renaissance Trading. In the future, RenaissanceRe may issue guarantees for other purposes or increase the amount of guarantees issued to counterparties of Renaissance Trading.

Platinum Warrant

The Company held a warrant to purchase up to 2.5 million common shares of Platinum for $27.00 per share. The Company recorded its investment in the Platinum warrant at fair value. The fair value of the warrant was estimated using either the Black-Scholes option pricing model or the in-the-money value, the greater of which the Company considered the best estimate of the exit value of the warrant. On January 20, 2011, the Company sold its warrant to Platinum for an aggregate of $47.9 million, and recognized a $3.0 million gain on the sale, which is included in other income during the six months ended June 30, 2011.

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Variable Interest Entities

6 Months Ended

Jun. 30, 2012

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Variable Interest Entities

VARIABLE INTEREST ENTITIES

Effective January 1, 2012, the Company formed and launched a new managed joint venture, Upsilon Reinsurance Ltd. (“Upsilon Re”), a Bermuda domiciled special purpose insurer ("SPI"), to provide additional capacity to the worldwide aggregate and per-occurrence retrocessional property catastrophe excess of loss market for the 2012 underwriting year. The original business was written by Renaissance Reinsurance of Europe ("ROE"), a wholly owned subsidiary of RenaissanceRe, and included $37.4 million of gross premiums written. A portion of this business was in turn ceded to Upsilon Re under a fully-collateralized retrocessional reinsurance contract, effective January 1, 2012. In conjunction with the formation and launch of Upsilon Re, $16.8 million of non-voting Class B shares were sold to external investors, and the Company invested $48.8 million in Upsilon Re's non-voting Class B shares, representing a 74.5% ownership interest in Upsilon Re. The Class B shareholders will participate in substantially all of the profits or losses of Upsilon Re while the Class B shares remain outstanding. The holders of Class B shares indemnify Upsilon Re against losses relating to insurance risk and therefore these shares have been accounted for as prospective reinsurance under Financial Accounting Standards Board Accounting Standards Codification Topic Financial Services - Insurance. In addition, another third party investor supplied $17.6 million of capital through a reinsurance participation with ROE alongside Upsilon Re. Inclusive of the third party quota share agreement, the Company has a 61.4% participation in the original risks assumed by ROE. Both Upsilon Re and the third party reinsurance participation related to Upsilon Re are managed by RUM in return for an expense override, as well as a potential underwriting profit commission. Upsilon Re is considered a VIE and the Company is considered the primary beneficiary. As a result, Upsilon Re is consolidated by the Company and all significant inter-company transactions have been eliminated.

The Company's ownership interest in Upsilon Re could change over time, perhaps materially so, and the Company may also elect to underwrite additional risks within Upsilon Re and to write business within Upsilon Re in future underwriting years.

Effective June 1, 2012, the Company formed and launched a new managed joint venture, Timicuan Reinsurance III Limited (“Tim Re III”), a Bermuda domiciled SPI, to provide collateralized reinsurance in respect of a portfolio of Florida reinstatement premium protection ("RPP") contracts. The original business was written by Renaissance Reinsurance and DaVinci, and included $41.1 million of gross premiums written incepting June 1, 2012 and Renaissance Reinsurance and DaVinci ceded $37.7 million to Tim Re III under a fully-collateralized reinsurance contract. In conjunction with the formation and launch of Tim Re III, $44.8 million of non-voting Class B shares were sold to external investors, and the Company invested an additional $10.3 million in Tim Re III's non-voting Class B shares, representing an 18.6% ownership interest in Tim Re III. The Class B shareholders will participate in substantially all of the profits or losses of Tim Re III while the Class B shares remain outstanding. The holders of Class B shares indemnify Tim Re III against losses relating to insurance risk and therefore these shares have been accounted for as prospective reinsurance under Financial Accounting Standards Board Accounting Standards Codification Topic Financial Services - Insurance. In addition, another third party investor supplied $5.2 million of capital through a reinsurance participation with Renaissance Reinsurance and DaVinci, alongside Tim Re III. Both Tim Re III and the third party reinsurance participation related to Tim Re III are managed by RUM in return for a potential underwriting profit commission. Tim Re III is considered a VIE and the Company is considered the primary beneficiary. As a result, Tim Re III is consolidated by the Company and all significant inter-company transactions have been eliminated.

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Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries (Condensed Consolidating Balance Sheet) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011		Jun. 30, 2011		Dec. 31, 2010
Assets
Total investments	$ 6,590,610		$ 6,209,252
Cash and cash equivalents	264,232		216,984		237,737		277,738
Investments in subsidiaries	0		0
Due from subsidiaries and affiliates	0		0
Premiums receivable	971,546		471,878
Prepaid reinsurance premiums	278,242		58,522
Reinsurance recoverable	198,777		404,029
Accrued investment income	35,938		33,523
Deferred acquisition costs	106,027		43,721
Other assets	514,146		307,003
Total assets	8,959,518		7,744,912
Liabilities
Reserve for claims and claim expenses	1,801,247		1,992,354
Unearned premiums	964,499		347,655
Debt	354,293		353,620
Amounts due to subsidiaries and affiliates	0		0
Reinsurance balances payable	396,669		256,883
Other liabilities	693,052		514,633
Liabilities of discontinued operations held for sale	1,959		13,507
Total liabilities	4,211,719		3,478,652
Redeemable noncontrolling interest - DaVinciRe	900,878		657,727
Shareholders' Equity
Total shareholders' equity	3,846,921		3,608,533		3,518,701
Total liabilities, noncontrolling interests and shareholders' equity	8,959,518		7,744,912
RenaissanceRe Holdings Ltd. (Parent Guarantor) [Member]
Assets
Total investments	348,875		593,973
Cash and cash equivalents	4,749		10,606		3,014		3,414
Investments in subsidiaries	3,277,526		2,776,997
Due from subsidiaries and affiliates	117,128		172,069
Premiums receivable	0		0
Prepaid reinsurance premiums	0		0
Reinsurance recoverable	0		0
Accrued investment income	3,030		4,106
Deferred acquisition costs	0		0
Other assets	209,827		206,171
Total assets	3,961,135		3,763,922
Liabilities
Reserve for claims and claim expenses	0		0
Unearned premiums	0		0
Debt	100,000		100,000
Amounts due to subsidiaries and affiliates	0		30,519
Reinsurance balances payable	0		0
Other liabilities	18,125		28,210
Liabilities of discontinued operations held for sale	0		0
Total liabilities	118,125		158,729
Redeemable noncontrolling interest - DaVinciRe	0		0
Shareholders' Equity
Total shareholders' equity	3,843,010		3,605,193
Total liabilities, noncontrolling interests and shareholders' equity	3,961,135		3,763,922
RenRe North America Holdings Inc. (Subsidiary Issuer) [Member]
Assets
Total investments	41,934		104,869
Cash and cash equivalents	871		4,920		276		3,940
Investments in subsidiaries	104,976		83,031
Due from subsidiaries and affiliates	0		846
Premiums receivable	0		0
Prepaid reinsurance premiums	0		0
Reinsurance recoverable	0		0
Accrued investment income	79		311
Deferred acquisition costs	0		0
Other assets	27,710		27,198
Total assets	175,570		221,175
Liabilities
Reserve for claims and claim expenses	0		0
Unearned premiums	0		0
Debt	249,293		249,247
Amounts due to subsidiaries and affiliates	5,215		6,081
Reinsurance balances payable	0		0
Other liabilities	5,571		3,755
Liabilities of discontinued operations held for sale	1,959		13,507
Total liabilities	262,038		272,590
Redeemable noncontrolling interest - DaVinciRe	0		0
Shareholders' Equity
Total shareholders' equity	(86,468)		(51,415)
Total liabilities, noncontrolling interests and shareholders' equity	175,570		221,175
Other RenaissanceRe Holdings Ltd. Subsidiaries And Eliminations (Non-Guarantor Subsidiaries) [Member]
Assets
Total investments	6,199,801	[1]	5,510,410	[1]
Cash and cash equivalents	258,612	[1]	201,458	[1]	234,447	[1]	270,384	[1]
Investments in subsidiaries	0	[1]	0	[1]
Due from subsidiaries and affiliates	0	[1]	0	[1]
Premiums receivable	971,546	[1]	471,878	[1]
Prepaid reinsurance premiums	278,242	[1]	58,522	[1]
Reinsurance recoverable	198,777	[1]	404,029	[1]
Accrued investment income	32,829	[1]	29,106	[1]
Deferred acquisition costs	106,027	[1]	43,721	[1]
Other assets	495,109	[1]	275,092	[1]
Total assets	8,540,943	[1]	6,994,216	[1]
Liabilities
Reserve for claims and claim expenses	1,801,247	[1]	1,992,354	[1]
Unearned premiums	964,499	[1]	347,655	[1]
Debt	5,000	[1]	4,373	[1]
Amounts due to subsidiaries and affiliates	0	[1]	0	[1]
Reinsurance balances payable	396,669	[1]	256,883	[1]
Other liabilities	670,814	[1]	482,668	[1]
Liabilities of discontinued operations held for sale	0	[1]	0	[1]
Total liabilities	3,838,229	[1]	3,083,933	[1]
Redeemable noncontrolling interest - DaVinciRe	900,878	[1]	657,727	[1]
Shareholders' Equity
Total shareholders' equity	3,801,836	[1]	3,252,556	[1]
Total liabilities, noncontrolling interests and shareholders' equity	8,540,943	[1]	6,994,216	[1]
Consolidating Adjustments [Member]
Assets
Total investments	0	[2]	0	[2]
Cash and cash equivalents	0	[2]	0	[2]
Investments in subsidiaries	(3,382,502)	[2]	(2,860,028)	[2]
Due from subsidiaries and affiliates	(117,128)	[2]	(172,915)	[2]
Premiums receivable	0	[2]	0	[2]
Prepaid reinsurance premiums	0	[2]	0	[2]
Reinsurance recoverable	0	[2]	0	[2]
Accrued investment income	0	[2]	0	[2]
Deferred acquisition costs	0	[2]	0	[2]
Other assets	(218,500)	[2]	(201,458)	[2]
Total assets	(3,718,130)	[2]	(3,234,401)	[2]
Liabilities
Reserve for claims and claim expenses	0	[2]	0	[2]
Unearned premiums	0	[2]	0	[2]
Debt	0	[2]	0	[2]
Amounts due to subsidiaries and affiliates	(5,215)	[2]	(36,600)	[2]
Reinsurance balances payable	0	[2]	0	[2]
Other liabilities	(1,458)	[2]	0	[2]
Liabilities of discontinued operations held for sale	0	[2]	0	[2]
Total liabilities	(6,673)	[2]	(36,600)	[2]
Redeemable noncontrolling interest - DaVinciRe	0	[2]	0	[2]
Shareholders' Equity
Total shareholders' equity	(3,711,457)	[2]	(3,197,801)	[2]
Total liabilities, noncontrolling interests and shareholders' equity	$ (3,718,130)	[2]	$ (3,234,401)	[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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Ceded Reinsurance

6 Months Ended

Jun. 30, 2012

Supplemental Schedule of Reinsurance Premiums for Insurance Companies [Abstract]

Ceded Reinsurance

CEDED REINSURANCE

The Company purchases reinsurance and other protection to manage its risk portfolio and to reduce its exposure to large losses. The Company currently has in place contracts that provide for recovery of a portion of certain claims and claim expenses, generally in excess of various retentions or on a proportional basis. In addition to loss recoveries, certain of the Company’s ceded reinsurance contracts provide for recoveries of additional premiums, reinstatement premiums and for lost no-claims bonuses, which are incurred when losses are ceded to other reinsurance contracts. The Company remains liable to the extent that any reinsurance company fails to meet its obligations.

The following tables set forth the effect of reinsurance and retrocessional activity on premiums written and earned and on net claims and claim expenses incurred:

Three months ended June 30,	2012			2011
Premiums written
Direct	$	11,736		$	9,309
Assumed	655,600			632,254
Ceded	(239,706		)	(213,568		)
Net premiums written	$	427,630		$	427,995
Premiums earned
Direct	$	7,950		$	4,033
Assumed	341,620			306,757
Ceded	(105,154		)	(93,615		)
Net premiums earned	$	244,416		$	217,175
Claims and claim expenses
Gross claims and claim expenses incurred	$	70,101		$	164,670
Claims and claim expenses recovered	(20,550		)	(13,409		)
Net claims and claim expenses incurred	$	49,551		$	151,261

Six months ended June 30,	2012			2011
Premiums written
Direct	$	20,199		$	15,561
Assumed	1,311,288			1,236,507
Ceded	(411,282		)	(371,498		)
Net premiums written	$	920,205		$	880,570
Premiums earned
Direct	$	15,737		$	6,515
Assumed	698,906			701,292
Ceded	(191,562		)	(185,091		)
Net premiums earned	$	523,081		$	522,716
Claims and claim expenses
Gross claims and claim expenses incurred	$	85,383		$	1,027,993
Claims and claim expenses recovered	(20,280		)	(248,195		)
Net claims and claim expenses incurred	$	65,103		$	779,798

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Noncontrolling Interests

6 Months Ended

Jun. 30, 2012

Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest [Abstract]

Noncontrolling Interests

NONCONTROLLING INTERESTS

Redeemable Noncontrolling Interest – DaVinciRe

In October 2001, the Company formed DaVinciRe and DaVinci with other equity investors. RenaissanceRe owns a noncontrolling economic interest in DaVinciRe; however, because RenaissanceRe controls a majority of DaVinciRe’s outstanding voting rights, the consolidated financial statements of DaVinciRe are included in the consolidated financial statements of the Company. The portion of DaVinciRe’s earnings owned by third parties is recorded in the consolidated statements of operations as net (income) loss attributable to noncontrolling interests. The Company's ownership in DaVinciRe was 31.5% at June 30, 2012 (December 31, 2011 - 42.8%).

DaVinciRe shareholders are party to a shareholders agreement (the “Shareholders Agreement”) which provides DaVinciRe shareholders, excluding RenaissanceRe, with certain redemption rights that enable each shareholder to notify DaVinciRe of such shareholder’s desire for DaVinciRe to repurchase up to half of such shareholder’s initial aggregate number of shares held, subject to certain limitations, such as limiting the aggregate of all share repurchase requests to 25% of DaVinciRe’s capital in any given year and satisfying all applicable regulatory requirements. If total shareholder requests exceed 25% of DaVinciRe’s capital, the number of shares repurchased will be reduced among the requesting shareholders pro-rata, based on the amounts desired to be repurchased. Shareholders desiring to have DaVinci repurchase their shares must notify DaVinciRe before March 1 of each year. The repurchase price will be based on GAAP book value as of the end of the year in which the shareholder notice is given, and the repurchase will be effective as of such date. Payment will be made by April 1 of the following year, following delivery of the audited financial statements for the year in which the repurchase was effective. The repurchase price is subject to a true-up for development on outstanding loss reserves after settlement of all claims relating to the applicable years.

Certain third party shareholders of DaVinciRe submitted repurchase notices on or before the required annual redemption notice date of March 1, 2011, in accordance with the Shareholders Agreement. The repurchase notices submitted on or before March 1, 2011, were for shares of DaVinciRe with a GAAP book value of $9.2 million at December 31, 2011. Effective January 1, 2012, DaVinciRe redeemed the shares for $9.2 million, less a $1.8 million reserve holdback.

On June 1, 2011, DaVinciRe completed an equity raise of $100.0 million from new and existing shareholders, including $30.0 million contributed by the Company. As a result of the equity raise, the Company's ownership in DaVinciRe decreased to 42.8% effective June 1, 2011.

Effective January 1, 2012, an existing third party shareholder sold a portion of its shares in DaVinciRe to a new third party shareholder.  In connection with the sale by the existing third party shareholder, DaVinciRe retained a $4.9 million holdback.  In addition, effective January 1, 2012, the Company sold a portion of its shares of DaVinciRe to a separate new third party shareholder.  The Company sold these shares for $98.9 million, net of a $10.0 million reserve holdback due from DaVinciRe.  The Company's ownership in DaVinciRe was 42.8% at December 31, 2011 and subsequent to the above transactions, its ownership interest in DaVinciRe decreased to 34.7% effective January 1, 2012.

Certain third party shareholders of DaVinciRe submitted repurchase notices on or before the required annual redemption notice date of March 1, 2012, in accordance with the Shareholders Agreement.  The repurchase notices submitted on or before March 1, 2012, were for shares of DaVinciRe with a GAAP book value of $50.0 million at June 30, 2012.

On June 1, 2012, DaVinciRe completed an equity raise of $49.3 million from a new third party investor.  In addition, the Company and an existing third party investor each sold $24.7 million in common shares of DaVinciRe to another existing third party investor, for a total of $49.4 million.  In connection with the sale by the Company and the existing third party investor, DaVinciRe retained a $5.0 million holdback, $2.5 million of which is payable to the Company.  As a result of the above transactions, the Company's ownership in DaVinciRe decreased to 31.5% effective January 1, 2012.

The Company expects its ownership in DaVinciRe to fluctuate over time.

The activity in redeemable noncontrolling interest – DaVinciRe is detailed in the table below:

	2012		2011
Balance – April 1	$	796,743	$	536,717
Purchase of shares from redeemable noncontrolling interest	—		(446		)
Sale of shares to redeemable noncontrolling interests	70,501		70,000
Comprehensive income:
Net income attributable to redeemable noncontrolling interest	33,634		21,733
Other comprehensive loss attributable to redeemable noncontrolling interest	—		(3		)
Balance – June 30	$	900,878	$	628,001

	2012		2011
Balance – January 1	$	657,727	$	757,655
Purchase of shares from redeemable noncontrolling interest	—		(135,618		)
Sale of shares to redeemable noncontrolling interests	156,169		70,000
Comprehensive income:
Net income (loss) attributable to redeemable noncontrolling interest	86,982		(64,030		)
Other comprehensive loss attributable to redeemable noncontrolling interest	—		(6		)
Balance – June 30	$	900,878	$	628,001

Noncontrolling Interest - Angus Fund L.P. (the “Angus Fund”)

In December 2010, REAL and RenRe Commodity Advisors Inc. (“RRCA”), both wholly owned subsidiaries of the Company, formed the Angus Fund with other equity investors. REAL, the general partner of the Angus Fund, has invested $55 thousand in the Angus Fund, representing a 1.0% ownership interest at June 30, 2012 (December 31, 2011 - $41 thousand and 1.0%, respectively), and RRCA, a limited partner, has invested $2.0 million in the Angus Fund, representing a 35.1% ownership interest at June 30, 2012 (December 31, 2011 - $1.0 million and 24.2%, respectively). The Angus Fund was formed to provide capital to and make investments in companies primarily in the heating oil and propane distribution industries to supplement the Company’s weather and energy risk management operations. The Angus Fund meets the definition of a variable interest entity ("VIE"), therefore the Company evaluated its ownership in the Angus Fund to determine if it is the primary beneficiary. The Company has concluded it is the primary beneficiary of the Angus Fund as it has the power to direct, and has a more than insignificant economic interest in, the activities of the Angus Fund and as such, the financial position and results of operations of the Angus Fund are consolidated. The portion of the Angus Fund's earnings owned by third parties is recorded in the consolidated statements of operations as net (income) loss attributable to noncontrolling interest. The Company expects its ownership in the Angus Fund to fluctuate over time.

The activity in noncontrolling interest is detailed in the table below:

	2012			2011
Balance – April 1	$	3,892		$	3,160
Sale of shares by noncontrolling interest	—			100
Comprehensive income:
Net (loss) income attributable to noncontrolling interest	(10		)	170
Dividends on common shares	29			—
Balance – June 30	$	3,911		$	3,430

	2012			2011
Balance – January 1	$	3,340		$	2,889
Sale of shares by noncontrolling interest	300			100
Comprehensive income:
Net income attributable to noncontrolling interest	283			441
Dividends on common shares	(12		)	—
Balance – June 30	$	3,911		$	3,430

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Shareholders' Equity

6 Months Ended

Jun. 30, 2012

Stockholders' Equity Note [Abstract]

Shareholders' Equity

SHAREHOLDERS’ EQUITY

The Board of Directors of RenaissanceRe declared, and RenaissanceRe paid, a dividend of $0.27 per common share to shareholders of record on March 15 and June 15, 2012, respectively.

The Company’s share repurchase program may be effected from time to time, depending on market conditions and other factors, through open market purchases and privately negotiated transactions. Unless terminated earlier by resolution of the Company’s Board of Directors, the program will expire when the Company has repurchased the full value of the shares authorized. The Company’s decision to repurchase common shares will depend on, among other matters, the market price of the common shares and the capital requirements of the Company. During the six months endedJune 30, 2012, the Company repurchased 1.2 million shares in open market transactions, at an aggregate cost of $91.6 million, and at an average share price of $74.57. Subsequent to June 30, 2012 and through the period ending July 30, 2012, the Company repurchased approximately 71 thousand common shares in open market transactions at an aggregate cost of $5.3 million and at an average share price of $74.21. On February 22, 2012, the Company approved an increase in its authorized share repurchase program to an aggregate amount of $500.0 million. At June 30, 2012, $412.0 million remained available for repurchase under the Board authorized share repurchase program. See "Part II, Item 2 - Unregistered Sales of Equity Securities and use of Proceeds" for additional information.

In December 2006, the Company raised $300.0 million through the issuance of 12 million Series D Preference Shares at $25 per share and in March 2004, the Company raised $250.0 million through the issuance of 10 million Series C Preference Shares at $25 per share. The Series D and Series C Preference Shares may be redeemed at $25 per share at the Company’s option on or after December 1, 2011 and March 23, 2009, respectively. Dividends on the Series D and Series C Preference Shares are cumulative from the date of original issuance and are payable quarterly in arrears at 6.60% and 6.08%, respectively, when, if, and as declared by the Board of Directors. The preference shares have no stated maturity and are not convertible into any other securities of the Company. Generally, the preference shares have no voting rights. Whenever dividends payable on the preference shares are in arrears (whether or not such dividends have been earned or declared) in an amount equivalent to dividends for six full dividend periods (whether or not consecutive), the holders of the preference shares, voting as a single class regardless of class or series, will have the right to elect two directors to the Board of Directors of the Company.

During the six months endedJune 30, 2012, the Company declared and paid $17.5 million in preference share dividends (2011 – $17.5 million).

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Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries (Condensed Consolidating Statement Of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011
Cash flows provided by (used in) operating activities:
Net cash provided by (used in) operating activities	$ 303,777		$ 30,996
Cash flows provided by (used in) investing activities
Proceeds from sales and maturities of fixed maturity investments trading	4,792,702		2,879,215
Purchases of fixed maturity investments trading	(5,312,902)		(2,811,678)
Proceeds from sales and maturities of fixed maturity investments available for sale	37,530		48,135
Purchases of fixed maturity investments available for sale	0		(4,078)
Purchases of equity investments trading	0		(32,676)
Net sales (purchases) of short term investments	183,605		50,852
Net sales of other investments	18,681		(23,881)
Net purchases of investments in other ventures	0		(21,000)
Net sales (purchases) of other assets	(166)		46,984
Dividends and return of capital from subsidiaries	0		0
Contributions to subsidiaries	0		0
Due to (from) subsidiary	0		0
Net proceeds from sale of discontinued operations held for sale	0		269,520
Net cash provided by (used in) investing activities	(280,550)		401,393
Cash flows provided by (used in) financing activities
Dividends paid - RenaissanceRe common shares	(27,673)		(26,721)
Dividends paid - preference shares	(17,500)		(17,500)
RenaissanceRe common share repurchases	(90,111)		(174,792)
Net repayment of debt	0		(200,000)
Third party DaVinciRe share transactions	160,864		(56,708)
Net cash provided by (used in) financing activities	25,580		(475,721)
Effect of exchange rate changes on foreign currency cash	(1,559)		3,331
Net increase (decrease) in cash and cash equivalents	47,248		(40,001)
Cash and cash equivalents, beginning of period	216,984		277,738
Cash and cash equivalents, end of period	264,232		237,737
RenaissanceRe Holdings Ltd. (Parent Guarantor) [Member]
Cash flows provided by (used in) operating activities:
Net cash provided by (used in) operating activities	9,361		123,220
Cash flows provided by (used in) investing activities
Proceeds from sales and maturities of fixed maturity investments trading	507,082		28,749
Purchases of fixed maturity investments trading	(405,809)		(33,626)
Proceeds from sales and maturities of fixed maturity investments available for sale	0		0
Purchases of fixed maturity investments available for sale			0
Purchases of equity investments trading			0
Net sales (purchases) of short term investments	141,196		24,965
Net sales of other investments	0		102,717
Net purchases of investments in other ventures			0
Net sales (purchases) of other assets	0		0
Dividends and return of capital from subsidiaries	256,153		718,294
Contributions to subsidiaries	(372,700)		(262,115)
Due to (from) subsidiary	(5,856)		(230,079)
Net proceeds from sale of discontinued operations held for sale			0
Net cash provided by (used in) investing activities	120,066		348,905
Cash flows provided by (used in) financing activities
Dividends paid - RenaissanceRe common shares	(27,673)		(26,721)
Dividends paid - preference shares	(17,500)		(17,500)
RenaissanceRe common share repurchases	(90,111)		(174,792)
Net repayment of debt			(253,512)
Third party DaVinciRe share transactions	0		0
Net cash provided by (used in) financing activities	(135,284)		(472,525)
Effect of exchange rate changes on foreign currency cash	0		0
Net increase (decrease) in cash and cash equivalents	(5,857)		(400)
Cash and cash equivalents, beginning of period	10,606		3,414
Cash and cash equivalents, end of period	4,749		3,014
RenRe North America Holdings Inc. (Subsidiary Issuer) [Member]
Cash flows provided by (used in) operating activities:
Net cash provided by (used in) operating activities	(21,004)		(25,043)
Cash flows provided by (used in) investing activities
Proceeds from sales and maturities of fixed maturity investments trading	124,658		72,982
Purchases of fixed maturity investments trading	(57,652)		(208,847)
Proceeds from sales and maturities of fixed maturity investments available for sale	0		0
Purchases of fixed maturity investments available for sale			0
Purchases of equity investments trading			0
Net sales (purchases) of short term investments	(3,483)		7,468
Net sales of other investments	0		0
Net purchases of investments in other ventures			0
Net sales (purchases) of other assets	0		0
Dividends and return of capital from subsidiaries	4,298		9,306
Contributions to subsidiaries	(50,000)		(5,700)
Due to (from) subsidiary	(866)		1,645
Net proceeds from sale of discontinued operations held for sale			269,520
Net cash provided by (used in) investing activities	16,955		146,374
Cash flows provided by (used in) financing activities
Dividends paid - RenaissanceRe common shares	0		0
Dividends paid - preference shares	0		0
RenaissanceRe common share repurchases	0		0
Net repayment of debt			(124,995)
Third party DaVinciRe share transactions	0		0
Net cash provided by (used in) financing activities	0		(124,995)
Effect of exchange rate changes on foreign currency cash	0		0
Net increase (decrease) in cash and cash equivalents	(4,049)		(3,664)
Cash and cash equivalents, beginning of period	4,920		3,940
Cash and cash equivalents, end of period	871		276
Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-Guarantor Subsidiaries) [Member]
Cash flows provided by (used in) operating activities:
Net cash provided by (used in) operating activities	315,420	[1]	(67,181)	[1]
Cash flows provided by (used in) investing activities
Proceeds from sales and maturities of fixed maturity investments trading	4,160,962	[1]	2,777,484	[1]
Purchases of fixed maturity investments trading	(4,849,441)	[1]	(2,569,205)	[1]
Proceeds from sales and maturities of fixed maturity investments available for sale	37,530	[1]	48,135	[1]
Purchases of fixed maturity investments available for sale			(4,078)	[1]
Purchases of equity investments trading			(32,676)	[1]
Net sales (purchases) of short term investments	45,892	[1]	18,419	[1]
Net sales of other investments	18,681	[1]	(126,598)	[1]
Net purchases of investments in other ventures			(21,000)	[1]
Net sales (purchases) of other assets	(166)	[1]	46,984	[1]
Dividends and return of capital from subsidiaries	(260,451)	[1]	(727,600)	[1]
Contributions to subsidiaries	422,700	[1]	267,815	[1]
Due to (from) subsidiary	6,722	[1]	228,434	[1]
Net proceeds from sale of discontinued operations held for sale			0	[1]
Net cash provided by (used in) investing activities	(417,571)	[1]	(93,886)	[1]
Cash flows provided by (used in) financing activities
Dividends paid - RenaissanceRe common shares	0	[1]	0	[1]
Dividends paid - preference shares	0	[1]	0	[1]
RenaissanceRe common share repurchases	0	[1]	0	[1]
Net repayment of debt			178,507	[1]
Third party DaVinciRe share transactions	160,864	[1]	(56,708)	[1]
Net cash provided by (used in) financing activities	160,864	[1]	121,799	[1]
Effect of exchange rate changes on foreign currency cash	(1,559)	[1]	3,331	[1]
Net increase (decrease) in cash and cash equivalents	57,154	[1]	(35,937)	[1]
Cash and cash equivalents, beginning of period	201,458	[1]	270,384	[1]
Cash and cash equivalents, end of period	$ 258,612	[1]	$ 234,447	[1]

[1] Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

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Investments (Schedule Of Fair Value Of Fixed Maturity Investments Available for Sale) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011
Amortized Cost	$ 96,647		$ 130,699
Available for Sale, Fair Value	108,102		142,052
Fixed maturity investments [Member]
Amortized Cost	96,647		130,669
Gross Unrealized Gains	11,584		12,197
Gross Unrealized Losses	(129)		(814)
Available for Sale, Fair Value	108,102		142,052
Non-Credit Other-Than-Temporary Impairments	966	[1]	(2,013)	[1]
Non-U.S. Government (Sovereign Debt) [Member]
Amortized Cost	5,000		10,087
Gross Unrealized Gains	223		921
Gross Unrealized Losses	0		(12)
Available for Sale, Fair Value	5,223		10,996
Non-Credit Other-Than-Temporary Impairments	0	[1]	0	[1]
Non U S Government Backed Corporate Member
Amortized Cost			312
Gross Unrealized Gains			13
Gross Unrealized Losses			0
Available for Sale, Fair Value			325
Non-Credit Other-Than-Temporary Impairments			0	[1]
Corporate [Member]
Amortized Cost	11,815		18,449
Gross Unrealized Gains	1,010		1,535
Gross Unrealized Losses	(110)		(517)
Available for Sale, Fair Value	12,715		19,467
Non-Credit Other-Than-Temporary Impairments	75	[1]	(176)	[1]
Agency mortgage-backed [Member]
Amortized Cost	10,478		12,636
Gross Unrealized Gains	906		1,071
Gross Unrealized Losses	0		0
Available for Sale, Fair Value	11,384		13,707
Non-Credit Other-Than-Temporary Impairments	0	[1]	0	[1]
Non-agency mortgage-backed [Member]
Amortized Cost	15,929		21,097
Gross Unrealized Gains	2,496		1,862
Gross Unrealized Losses	(19)		(284)
Available for Sale, Fair Value	18,406		22,675
Non-Credit Other-Than-Temporary Impairments	891	[1]	(1,837)	[1]
Commercial mortgage-backed [Member]
Amortized Cost	48,926		63,269
Gross Unrealized Gains	6,717		6,576
Gross Unrealized Losses	0		(1)
Available for Sale, Fair Value	55,643		69,844
Non-Credit Other-Than-Temporary Impairments	0	[1]	0	[1]
Asset-backed [Member]
Amortized Cost	4,499		4,819
Gross Unrealized Gains	232		219
Gross Unrealized Losses	0		0
Available for Sale, Fair Value	4,731		5,038
Non-Credit Other-Than-Temporary Impairments	$ 0	[1]	$ 0	[1]

[1] Represents the non-credit component of other-than-temporary impairments recognized in accumulated other comprehensive income since the adoption of guidance related to the recognition and presentation of other-than-temporary impairments under FASB ASC Topic Financial Instruments – Debt and Equity Securities, during the second quarter of 2009, adjusted for subsequent sales of securities. It does not include the change in fair value subsequent to the impairment measurement date.

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Shareholders' Equity (Details) (USD $)	0 Months Ended		3 Months Ended		6 Months Ended		1 Months Ended	0 Months Ended		3 Months Ended	1 Months Ended	6 Months Ended		1 Months Ended	6 Months Ended
	Jun. 30, 2012	Feb. 22, 2012	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jul. 30, 2012 Repurchase of Equity [Member]	Jun. 15, 2012 Common Stock [Member]	Mar. 15, 2012 Common Stock [Member]	Jun. 30, 2012 Common Stock [Member]	Dec. 31, 2006 Series D Preferred Stock [Member]	Jun. 30, 2012 Series D Preferred Stock [Member]	Nov. 30, 2011 Series D Preferred Stock [Member]	Mar. 31, 2004 Series C Preferred Stock [Member]	Jun. 30, 2012 Series C Preferred Stock [Member]	Mar. 23, 2009 Series C Preferred Stock [Member]
Class of Stock [Line Items]
Dividends declared, Per common share			$ 0.27	$ 0.26	$ 0.54	$ 0.52		$ 0.27		$ 0.27
Dividends paid, Per common share								$ 0.27	$ 0.27
Common shares repurchased during the period, Number of shares					1,200,000		71,000
Common shares repurchased during period, Aggregate value					$ 91,600,000		$ 5,300,000
Common shares repurchased during period, Average cost per share					$ 74.57		$ 74.21
Share repurchase program, Authorized aggregate amount		500,000,000
Share repurchase program, Remaining authorized aggregate amount	412,000,000
Proceeds from issuance of preference shares											300,000,000			250,000,000
Preference shares issued, Shares											12,000,000			10,000,000
Preference shares issued, Issuance price per share											$ 25			$ 25
Preference shares, Dividend rate												6.60%			6.08%
Preference shares, Redemption price per share													$ 25			$ 25
Dividends declared and paid, Preference shares			$ 8,750,000	$ 8,750,000	$ 17,500,000	$ 17,500,000

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Litigation

6 Months Ended

Jun. 30, 2012

Commitments and Contingencies Disclosure [Abstract]

Litigation

COMMITMENTS AND CONTINGENCIES

There are no material changes from the commitments and contingencies previously disclosed in the Company's Annual Report on Form 10-K for the year ended December 31, 2011.

The Company and its subsidiaries are subject to lawsuits and regulatory actions in the normal course of business that do not arise from or directly relate to claims on reinsurance treaties or contracts or direct surplus lines insurance policies.  This category of business litigation may involve allegations of underwriting or claims-handling errors or misconduct, employment claims, regulatory actions or disputes arising from the Company's business ventures.  The Company's operating subsidiaries are subject to claims litigation involving disputed interpretations of policy coverages.  Generally, the Company's direct surplus lines insurance operations are subject to greater frequency and diversity of claims and claims-related litigation than its reinsurance operations and, in some jurisdictions, may be subject to direct actions by allegedly injured persons or entities seeking damages from policyholders.  These lawsuits, involving claims on policies issued by the Company's subsidiaries which are typical to the insurance industry in general and in the normal course of business, are considered in its loss and loss expense reserves which are discussed in its loss reserves discussion.  In addition, the Company may from time to time engage in litigation or arbitration related to its claims for payment in respect of ceded reinsurance.  Any such litigation or arbitration contains an element of uncertainty, and the Company believes the inherent uncertainty in such matters may have increased recently and will likely continue to increase. Currently, the Company believes that no individual litigation or arbitration to which it is presently a party is likely to have a material adverse effect on its financial condition, business or operations.

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Noncontrolling Interests (Tables)

6 Months Ended

Jun. 30, 2012

Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest [Abstract]

Schedule Of Redeemable Noncontrolling Interest

The Company expects its ownership in DaVinciRe to fluctuate over time.

The activity in redeemable noncontrolling interest – DaVinciRe is detailed in the table below:

	2012		2011
Balance – April 1	$	796,743	$	536,717
Purchase of shares from redeemable noncontrolling interest	—		(446		)
Sale of shares to redeemable noncontrolling interests	70,501		70,000
Comprehensive income:
Net income attributable to redeemable noncontrolling interest	33,634		21,733
Other comprehensive loss attributable to redeemable noncontrolling interest	—		(3		)
Balance – June 30	$	900,878	$	628,001

	2012		2011
Balance – January 1	$	657,727	$	757,655
Purchase of shares from redeemable noncontrolling interest	—		(135,618		)
Sale of shares to redeemable noncontrolling interests	156,169		70,000
Comprehensive income:
Net income (loss) attributable to redeemable noncontrolling interest	86,982		(64,030		)
Other comprehensive loss attributable to redeemable noncontrolling interest	—		(6		)
Balance – June 30	$	900,878	$	628,001

Schedule Of Noncontrolling Interest

The activity in noncontrolling interest is detailed in the table below:

	2012			2011
Balance – April 1	$	3,892		$	3,160
Sale of shares by noncontrolling interest	—			100
Comprehensive income:
Net (loss) income attributable to noncontrolling interest	(10		)	170
Dividends on common shares	29			—
Balance – June 30	$	3,911		$	3,430

	2012			2011
Balance – January 1	$	3,340		$	2,889
Sale of shares by noncontrolling interest	300			100
Comprehensive income:
Net income attributable to noncontrolling interest	283			441
Dividends on common shares	(12		)	—
Balance – June 30	$	3,911		$	3,430

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Noncontrolling Interests (Schedule Of Noncontrolling Interest) (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	Dec. 31, 2011
Noncontrolling Interest [Line Items]
Ownership interest with other equity investors, Amount	$ 0		$ 0		$ 0
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Balance, Beginning			3,340
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest [Abstract]
Net income attributable to noncontrolling interest	33,624	21,903	87,265	(63,589)
Balance, Ending	3,911		3,911
Angus Fund Member
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Balance, Beginning	3,892	3,160	3,340	2,889
Sale of shares to noncontrolling interest	0	100	300	100
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest [Abstract]
Net income attributable to noncontrolling interest	(10)	170	283	441
Dividends on common shares	29	0	(12)	0
Balance, Ending	3,911	3,430	3,911	3,430
Real Member | Angus Fund Member
Noncontrolling Interest [Line Items]
Ownership interest with other equity investors, Amount	55		55		41
Parent company ownership in consolidated subsidiary	1.00%		1.00%		1.00%
Rrca Member | Angus Fund Member
Noncontrolling Interest [Line Items]
Ownership interest with other equity investors, Amount	$ 2,000		$ 2,000		$ 1,000
Parent company ownership in consolidated subsidiary	35.10%		35.10%		24.20%

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Fair Value Measurements (Narrative) (Details) (USD $)	6 Months Ended			3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		0 Months Ended			0 Months Ended																									6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Jun. 30, 2012 Other Investments [Member] Investment Income, Net [Member]	Jun. 30, 2011 Other Investments [Member] Investment Income, Net [Member]	Jun. 30, 2012 Other Investments [Member] Investment Income, Net [Member]	Jun. 30, 2011 Other Investments [Member] Investment Income, Net [Member]	Jun. 30, 2012 Other Assets and Liabilities [Member] Other (Loss) Income [Member]	Jun. 30, 2011 Other Assets and Liabilities [Member] Other (Loss) Income [Member]	Jun. 30, 2012 Other Assets and Liabilities [Member] Other (Loss) Income [Member]	Jun. 30, 2011 Other Assets and Liabilities [Member] Other (Loss) Income [Member]	Jan. 03, 2003 5.875% Senior Notes Due February 15, 2013 [Member]	Jun. 30, 2012 5.875% Senior Notes Due February 15, 2013 [Member]	Dec. 31, 2011 5.875% Senior Notes Due February 15, 2013 [Member]	Mar. 17, 2010 5.75% Senior Notes Due March 15, 2020 [Member] RenRe North America Holdings Inc. [Member]	Jun. 30, 2012 5.75% Senior Notes Due March 15, 2020 [Member] RenRe North America Holdings Inc. [Member]	Dec. 31, 2011 5.75% Senior Notes Due March 15, 2020 [Member] RenRe North America Holdings Inc. [Member]	Jun. 30, 2012 U.S. treasuries [Member]	Dec. 31, 2011 U.S. treasuries [Member]	Jun. 30, 2012 Agencies [Member]	Dec. 31, 2011 Agencies [Member]	Jun. 30, 2012 Non-U.S. government (Sovereign Debt) [Member]	Dec. 31, 2011 Non-U.S. government (Sovereign Debt) [Member]	Jun. 30, 2012 FDIC guaranteed corporate [Member]	Dec. 31, 2011 FDIC guaranteed corporate [Member]	Jun. 30, 2012 Non-U.S. government-backed corporate [Member]	Dec. 31, 2011 Non-U.S. government-backed corporate [Member]	Jun. 30, 2012 Corporate [Member]	Dec. 31, 2011 Corporate [Member]	Jun. 30, 2012 Agency mortgage-backed [Member] years	Dec. 31, 2011 Agency mortgage-backed [Member] years	Jun. 30, 2012 Non-agency prime residential mortgage-backed [Member] years	Dec. 31, 2011 Non-agency prime residential mortgage-backed [Member] years	Jun. 30, 2012 AltA non-agency mortgage-backed [Member] years	Dec. 31, 2011 AltA non-agency mortgage-backed [Member] years	Jun. 30, 2012 Commercial mortgage-backed [Member] years	Dec. 31, 2011 Commercial mortgage-backed [Member] years	Jun. 30, 2012 Asset-backed [Member] years	Dec. 31, 2011 Asset-backed [Member] years	Jun. 30, 2012 Private equity partnerships [Member]	Jun. 30, 2012 Senior secured bank loan funds [Member]	Jun. 30, 2012 Hedge funds [Member]	Jun. 30, 2012 Assumed and ceded reinsurance contracts [Member]	Dec. 31, 2011 Assumed and ceded reinsurance contracts [Member]	Jun. 30, 2012 Other [Member]	Dec. 31, 2011 Other [Member]	Jun. 30, 2012 Miscellaneous other investments [Member]	Dec. 31, 2011 Miscellaneous other investments [Member]	Jun. 30, 2012 Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]	Dec. 31, 2011 Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]	Jun. 30, 2012 Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] Assumed and ceded reinsurance contracts [Member]	Dec. 31, 2011 Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] Assumed and ceded reinsurance contracts [Member]	Jun. 30, 2012 Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] Other [Member]	Dec. 31, 2011 Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] Other [Member]	Jun. 30, 2012 Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] Cash Settled Restricted Stock Unit [Member]	Jun. 30, 2012 Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] Miscellaneous other investments [Member]	Dec. 31, 2011 Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] Miscellaneous other investments [Member]	Jun. 30, 2012 Significant Unobservable Inputs (Level 3) [Member]	Dec. 31, 2011 Significant Unobservable Inputs (Level 3) [Member]	Jun. 30, 2012 Significant Unobservable Inputs (Level 3) [Member] Assumed and ceded reinsurance contracts [Member]	Dec. 31, 2011 Significant Unobservable Inputs (Level 3) [Member] Assumed and ceded reinsurance contracts [Member]	Jun. 30, 2012 Significant Unobservable Inputs (Level 3) [Member] Other [Member]	Dec. 31, 2011 Significant Unobservable Inputs (Level 3) [Member] Other [Member]	Jun. 30, 2012 Significant Unobservable Inputs (Level 3) [Member] Miscellaneous other investments [Member]	Dec. 31, 2011 Significant Unobservable Inputs (Level 3) [Member] Miscellaneous other investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Weighted average effective yield																		0.50%	0.60%	0.70%	0.50%	2.20%	2.30%	0.30%	0.30%	1.20%	1.40%	3.10%	4.20%	1.50%	1.50%	5.20%	8.00%	7.00%	9.10%	2.50%	3.20%	2.50%	0.90%
Weighted average life																														2.8	2.6	5.2	3.3	5.5	3.8	3.8	4.2	3.8	1.8
Investment in closed end fund																																									$ 22,700,000
Senior Notes, Carrying value												100,000,000
Senior notes interest rate												5.875%			5.75%
Debt instrument maturity date												February 15, 2013			March 15, 2020
Senior Notes, Fair value													102,200,000	103,400,000		264,100,000	263,000,000
Debt instrument, Face amount															250,000,000
Net unrealized gains (losses) recognized in earnings	23,821,000	22,270,000		(13,400,000)	5,700,000	21,900,000	33,700,000	(400,000)	(800,000)	(2,500,000)	43,300,000
Investments redeemable in part, on a monthly basis, or in whole over a three month period																																									246,600,000
Assets and (liabilities) at fair value	35,252,000		16,071,000																																								9,689,000	2,115,000	10,811,000	10,644,000			(2,593,000)	(6,162,000)	0	0	(4,604,000)	(6,869,000)	(4,600,000)			34,185,000	28,526,000	9,689,000	2,115,000	15,415,000	17,513,000
Estimated liquidation period of limited partnership assets, Minimum																																								7 years
Estimated liquidation period of limited partnership assets, Maximum																																								10 years
Other investments measured using net asset valuations	635,828,000																																							360,268,000	269,317,000	6,243,000
Hedge fund side pocket investments																																										6,200,000
Other investments	743,568,000		748,984,000																																												1,270,000	2,000,000	0	0						0	0	390,505,000	396,526,000					1,270,000	2,000,000
Assets (Liabilities), Fair Value Disclosure, Recurring																																																										$ 34,185,000

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Consolidated Statements Of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Comprehensive income (loss)
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 (loss)	(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)
Disclosure regarding net unrealized gains
Total realized and net unrealized holding gains on investments and net other-than-temporary impairments	105	1,292	2,529	902
Net realized gains on fixed maturity investments available for sale	(746)	(3,106)	(2,049)	(2,694)
Net other-than-temporary impairments recognized in earnings	209	0	343	0
Change in net unrealized gains on investments	$ (432)	$ (1,814)	$ 823	$ (1,792)

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Discontinued Operations

6 Months Ended

Jun. 30, 2012

Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures [Abstract]

Discontinued Operations

DISCONTINUED OPERATIONS

U.S.-Based Insurance Operations

On November 18, 2010, the Company entered into a Stock Purchase Agreement with QBE to sell substantially all of its U.S.-based insurance operations, including its U.S. property and casualty business underwritten through managing general agents, its crop insurance business underwritten through Agro National, its commercial property insurance operations and its claims operations.  At December 31, 2010, the Company classified the assets and liabilities associated with this transaction as held for sale and the assets and liabilities were recorded at the lower of the carrying value or fair value less costs to sell. The financial results for these operations have been presented as discontinued operations in the Company's consolidated statements of operations for all periods presented.

Consideration for the transaction was book value at December 31, 2010, for the aforementioned businesses, payable in cash at closing and subject to adjustment for certain tax and other items. The transaction closed on March 4, 2011 and net consideration of $269.5 million was received by the Company.

Pursuant to the Stock Purchase Agreement, the Company was subject to a post-closing review following December 31, 2011 of the net reserve for claims and claim expenses for loss events occurring on or prior to December 31, 2010 (the “Reserve Collar”). Subsequent to the post-closing review, the Company was liable to pay, or otherwise reimburse QBE amounts up to $10.0 million for net adverse development on prior accident years net claims and claim expenses. Conversely, if prior accident years net claims and claim expenses experienced net favorable development, QBE was liable to pay, or otherwise reimburse the Company amounts up to $10.0 million.

During 2011, the Company recognized a $10.0 million liability and corresponding expense in liabilities of discontinued operations held for sale and (loss) income from discontinued operations, respectively, due to purported net adverse development on prior accident years net claims and claim expenses associated with the Reserve Collar.  Effective May 23, 2012, the Company and QBE reached an agreement in respect of the Reserve Collar, and the Company paid QBE the sum of $9.0 million on June 1, 2012, representing full and final settlement of the Reserve Collar and recorded a gain of $1.0 million in income from discontinued operations during the second quarter of 2012.

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Derivative Instruments (Gross Derivative Contract Positions Outstanding Relating To Energy And Weather Derivatives Trading Activities) (Details)	Jun. 30, 2012 Btu		Dec. 31, 2011 Btu
Energy [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	170,095,670	[1]	240,363,364	[1]
Temperature [Member]
Derivative [Line Items]
Derivative, Notional Amount Per Unit	24,141,394	[1]	14,917,438	[1]
Agriculture [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	29,798,000	[1]	6,098,000	[1]
Precipitation [Member]
Derivative [Line Items]
Derivative, Notional Amount Per Unit	1,799,475	[1]	65,000	[1]
Wind [Member]
Derivative [Line Items]
Derivative, Notional Amount Per Unit	146	[1]	712	[1]

[1] Represents the sum of gross long and gross short derivative contracts.

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Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2012

Earnings Per Share [Abstract]

Schedule Of Computation Of Basic And Diluted Earnings Per Common Share

The following table sets forth the computation of basic and diluted earnings per common share:

Three months ended June 30,	2012			2011
(thousands of shares)
Numerator:
Net income available to RenaissanceRe common shareholders	$	142,270		$	24,764
Amount allocated to participating common shareholders (1)	(2,236		)	(461		)
Net income allocated to RenaissanceRe common shareholders	$	140,034		$	24,303
Denominator:
Denominator for basic income per RenaissanceRe common share - weighted average common shares	50,278			50,493
Per common share equivalents of employee stock options and restricted shares	734			557
Denominator for diluted income per RenaissanceRe common share - adjusted weighted average common shares and assumed conversions	51,012			51,050
Basic income per RenaissanceRe common share	$	2.78		$	0.48
Diluted income per RenaissanceRe common share	$	2.75		$	0.48

Six months ended June 30,	2012			2011
(thousands of shares)
Numerator:
Net income (loss) available (attributable) to RenaissanceRe common shareholders	$	343,699		$	(223,269	)
Amount allocated to participating common shareholders (1)	(5,601		)	(514		)
Net income (loss) allocated to RenaissanceRe common shareholders	$	338,098		$	(223,783	)
Denominator:
Denominator for basic income (loss) per RenaissanceRe common share - weighted average common shares	50,328			50,994
Per common share equivalents of employee stock options and restricted shares	669			—
Denominator for diluted income (loss) per RenaissanceRe common share - adjusted weighted average common shares and assumed conversions	50,997			50,994
Basic income (loss) per RenaissanceRe common share	$	6.72		$	(4.39	)
Diluted income (loss) per RenaissanceRe common share	$	6.63		$	(4.39	)

(1) Represents earnings attributable to holders of unvested restricted shares issued under the Company’s 2001 Stock Incentive Plan and Non-Employee Director Stock Incentive Plan.

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Investments (Schedule Of Net Realized And Unrealized Gains On Investments And Net Other-Than-Temporary Impairments) (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
Gain (Loss) on Investments [Line Items]
Net realized and unrealized gains on investments	$ 31,003	$ 34,979	$ 77,116	$ 29,765
Total other-than-temporary impairments	(234)	0	(395)	0
Portion recognized in other comprehensive income, before taxes	25	0	52	0
Net other-than-temporary impairments	(209)	0	(343)	0
Fixed maturity investments [Member]
Gain (Loss) on Investments [Line Items]
Gross realized gains	19,458	15,430	55,744	25,992
Gross realized losses	(3,294)	(4,156)	(10,244)	(16,773)
Net realized gains on fixed maturity investments	16,164	11,274	45,500	9,219
Net unrealized gains (losses) on investments trading	12,538	24,728	26,795	20,970
Equity investments [Member]
Gain (Loss) on Investments [Line Items]
Net unrealized gains (losses) on investments trading	$ 2,301	$ (1,023)	$ 4,821	$ (424)

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Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries

6 Months Ended

Jun. 30, 2012

Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries [Abstract]

Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries

CONDENSED CONSOLIDATING FINANCIAL INFORMATION PROVIDED IN CONNECTION WITH OUTSTANDING DEBT OF SUBSIDIARIES

The following tables present condensed consolidating balance sheets at June 30, 2012 and December 31, 2011, condensed consolidating statements of operations and condensed consolidating statements of comprehensive income (loss) for the three and six months endedJune 30, 2012 and 2011, and condensed consolidating statements of cash flows for the six months endedJune 30, 2012 and 2011, respectively, for RenaissanceRe, RRNAH and RenaissanceRe’s other subsidiaries. RRNAH is a wholly owned subsidiary of RenaissanceRe.

On March 17, 2010, RRNAH issued, and RenaissanceRe guaranteed, $250.0 million of 5.75% Senior Notes due March 15, 2020, with interest on the notes payable on March 15 and September 15. The notes can be redeemed by RRNAH prior to maturity, subject to payment of a “make-whole” premium. The notes, which are senior obligations, contain various covenants, including limitations on mergers and consolidations, restrictions as to the disposition of the stock of designated subsidiaries and limitations on liens of the stock of designated subsidiaries.

Condensed Consolidating Balance Sheet at June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)		RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries)  (1)		Consolidating Adjustments  (2)			RenaissanceRe Consolidated
Assets
Total investments	$	348,875	$	41,934		$	6,199,801	$	—		$	6,590,610
Cash and cash equivalents	4,749		871			258,612		—			264,232
Investments in subsidiaries	3,277,526		104,976			—		(3,382,502		)	—
Due from subsidiaries and affiliates	117,128		—			—		(117,128		)	—
Premiums receivable	—		—			971,546		—			971,546
Prepaid reinsurance premiums	—		—			278,242		—			278,242
Reinsurance recoverable	—		—			198,777		—			198,777
Accrued investment income	3,030		79			32,829		—			35,938
Deferred acquisition costs	—		—			106,027		—			106,027
Other assets	209,827		27,710			495,109		(218,500		)	514,146
Total assets	$	3,961,135	$	175,570		$	8,540,943	$	(3,718,130	)	$	8,959,518
Liabilities, Noncontrolling Interests and Shareholders’ Equity
Liabilities
Reserve for claims and claim expenses	$	—	$	—		$	1,801,247	$	—		$	1,801,247
Unearned premiums	—		—			964,499		—			964,499
Debt	100,000		249,293			5,000		—			354,293
Amounts due to subsidiaries and affiliates	—		5,215			—		(5,215		)	—
Reinsurance balances payable	—		—			396,669		—			396,669
Other liabilities	18,125		5,571			670,814		(1,458		)	693,052
Liabilities of discontinued operations held for sale	—		1,959			—		—			1,959
Total liabilities	118,125		262,038			3,838,229		(6,673		)	4,211,719
Redeemable noncontrolling interest – DaVinciRe	—		—			900,878		—			900,878
Shareholders’ Equity
Total shareholders’ equity	3,843,010		(86,468		)	3,801,836		(3,711,457		)	3,846,921
Total liabilities, noncontrolling interests and shareholders’ equity	$	3,961,135	$	175,570		$	8,540,943	$	(3,718,130	)	$	8,959,518

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Balance Sheet at December 31, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)		RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries)  (1)		Consolidating Adjustments  (2)			RenaissanceRe Consolidated
Assets
Total investments	$	593,973	$	104,869		$	5,510,410	$	—		$	6,209,252
Cash and cash equivalents	10,606		4,920			201,458		—			216,984
Investments in subsidiaries	2,776,997		83,031			—		(2,860,028		)	—
Due from subsidiaries and affiliates	172,069		846			—		(172,915		)	—
Premiums receivable	—		—			471,878		—			471,878
Prepaid reinsurance premiums	—		—			58,522		—			58,522
Reinsurance recoverable	—		—			404,029		—			404,029
Accrued investment income	4,106		311			29,106		—			33,523
Deferred acquisition costs	—		—			43,721		—			43,721
Other assets	206,171		27,198			275,092		(201,458		)	307,003
Total assets	$	3,763,922	$	221,175		$	6,994,216	$	(3,234,401	)	$	7,744,912
Liabilities, Redeemable Noncontrolling Interest and Shareholders’ Equity
Liabilities
Reserve for claims and claim expenses	$	—	$	—		$	1,992,354	$	—		$	1,992,354
Unearned premiums	—		—			347,655		—			347,655
Debt	100,000		249,247			4,373		—			353,620
Amounts due to subsidiaries and affiliates	30,519		6,081			—		(36,600		)	—
Reinsurance balances payable	—		—			256,883		—			256,883
Other liabilities	28,210		3,755			482,668		—			514,633
Liabilities of discontinued operations held for sale	—		13,507			—		—			13,507
Total liabilities	158,729		272,590			3,083,933		(36,600		)	3,478,652
Redeemable noncontrolling interest – DaVinciRe	—		—			657,727		—			657,727
Shareholders’ Equity
Total shareholders’ equity	3,605,193		(51,415		)	3,252,556		(3,197,801		)	3,608,533
Total liabilities, redeemable noncontrolling interest and shareholders’ equity	$	3,763,922	$	221,175		$	6,994,216	$	(3,234,401	)	$	7,744,912

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Statement of Operations for the three months ended June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries)  (1)			Consolidating Adjustments  (2)			RenaissanceRe Consolidated
Revenues
Net premiums earned	$	—		$	—		$	244,416		$	—		$	244,416
Net investment income	3,243			206			13,338			(2,044		)	14,743
Net foreign exchange (losses) gains	(13		)	—			2,423			—			2,410
Equity in earnings of other ventures	—			—			6,846			—			6,846
Other income	60			—			11,229			—			11,289
Net realized and unrealized gains on investments	4,907			8			26,088			—			31,003
Net other-than-temporary impairments	—			—			(209		)	—			(209		)
Total revenues	8,197			214			304,131			(2,044		)	310,498
Expenses
Net claims and claim expenses incurred	—			—			49,551			—			49,551
Acquisition expenses	—			—			25,608			—			25,608
Operational expenses	(1,303		)	1,749			40,961			—			41,407
Corporate expenses	3,501			59			507			—			4,067
Interest expense	1,469			3,616			631			—			5,716
Total expenses	3,667			5,424			117,258			—			126,349
Income (loss) before equity in net income of subsidiaries and taxes	4,530			(5,210		)	186,873			(2,044		)	184,149
Equity in net income of subsidiaries	146,490			6,511			—			(153,001		)	—
Income from continuing operations before taxes	151,020			1,301			186,873			(155,045		)	184,149
Income tax expense	—			(400		)	(498		)	—			(898		)
Income from continuing operations	151,020			901			186,375			(155,045		)	183,251
Income from discontinued operations	—			1,393			—			—			1,393
Net income	151,020			2,294			186,375			(155,045		)	184,644
Net income attributable to noncontrolling interests	—			—			(33,624		)	—			(33,624		)
Net income attributable to RenaissanceRe	151,020			2,294			152,751			(155,045		)	151,020
Dividends on preference shares	(8,750		)	—			—			—			(8,750		)
Net income attributable to RenaissanceRe common shareholders	$	142,270		$	2,294		$	152,751		$	(155,045	)	$	142,270

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Statement of Comprehensive Income for the three months ended June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)		RenRe North America Holdings Inc. (Subsidiary Issuer)		Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)			RenaissanceRe Consolidated
Comprehensive income
Net income	$	151,020	$	2,294	$	186,375		$	(155,045	)	$	184,644
Change in net unrealized gains on investments	—		—		(432		)	—			(432		)
Portion of other-than-temporary impairments recognized in other comprehensive income	—		—		(25		)	—			(25		)
Comprehensive income	151,020		2,294		185,918			(155,045		)	184,187
Net income attributable to noncontrolling interests	—		—		(33,624		)	—			(33,624		)
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests	—		—		—			—			—
Comprehensive income attributable to noncontrolling interests	—		—		(33,624		)	—			(33,624		)
Comprehensive income attributable to RenaissanceRe	$	151,020	$	2,294	$	152,294		$	(155,045	)	$	150,563

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Statement of Operations for the six months ended June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries)  (1)			Consolidating Adjustments  (2)			RenaissanceRe Consolidated
Revenues
Net premiums earned	$	—		$	—		$	523,081		$	—		$	523,081
Net investment income	7,691			475			77,697			(4,149		)	81,714
Net foreign exchange gains	7			—			943			—			950
Equity in earnings of other ventures	—			—			12,316			—			12,316
Other income (loss)	152			—			(27,957		)	—			(27,805		)
Net realized and unrealized gains on investments	8,419			1,052			67,645			—			77,116
Net other-than-temporary impairments	—			—			(343		)	—			(343		)
Total revenues	16,269			1,527			653,382			(4,149		)	667,029
Expenses
Net claims and claim expenses incurred	—			—			65,103			—			65,103
Acquisition expenses	—			—			49,719			—			49,719
Operational expenses	(2,614		)	3,757			82,647			—			83,790
Corporate expenses	7,679			152			1,047			—			8,878
Interest expense	2,938			7,233			1,263			—			11,434
Total expenses	8,003			11,142			199,779			—			218,924
Income (loss) before equity in net income (loss) of subsidiaries and taxes	8,266			(9,615		)	453,603			(4,149		)	448,105
Equity in net income (loss) of subsidiaries	352,933			(23,757		)	—			(329,176		)	—
Income (loss) from continuing operations before taxes	361,199			(33,372		)	453,603			(333,325		)	448,105
Income tax (expense) benefit	—			(2,968		)	2,107			—			(861		)
Income (loss) from continuing operations	361,199			(36,340		)	455,710			(333,325		)	447,244
Income from discontinued operations	—			1,220			—			—			1,220
Net income (loss)	361,199			(35,120		)	455,710			(333,325		)	448,464
Net income attributable to noncontrolling interests	—			—			(87,265		)	—			(87,265		)
Net income (loss) attributable to RenaissanceRe	361,199			(35,120		)	368,445			(333,325		)	361,199
Dividends on preference shares	(17,500		)	—			—			—			(17,500		)
Net income (loss) attributable to RenaissanceRe common shareholders	$	343,699		$	(35,120	)	$	368,445		$	(333,325	)	$	343,699

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Statement of Comprehensive Income (Loss) for the six months ended June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)		RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)			RenaissanceRe Consolidated
Comprehensive income (loss)
Net income (loss)	$	361,199	$	(35,120	)	$	455,710		$	(333,325	)	$	448,464
Change in net unrealized gains on investments	—		—			823			—			823
Portion of other-than-temporary impairments recognized in other comprehensive income	—		—			(52		)	—			(52		)
Comprehensive income (loss)	361,199		(35,120		)	456,481			(333,325		)	449,235
Net income attributable to noncontrolling interests	—		—			(87,265		)	—			(87,265		)
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests	—		—			—			—			—
Comprehensive income attributable to noncontrolling interests	—		—			(87,265		)	—			(87,265		)
Comprehensive income (loss) attributable to RenaissanceRe	$	361,199	$	(35,120	)	$	369,216		$	(333,325	)	$	361,970

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Statement of Operations for the three months ended June 30, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)			RenaissanceRe Consolidated
Revenues
Net premiums earned	$	—		$	—		$	217,175		$	—		$	217,175
Net investment income	5,586			203			29,441			(1,902		)	33,328
Net foreign exchange gains (losses)	5			—			(4,526		)	—			(4,521		)
Equity in earnings of other ventures	—			—			5,128			—			5,128
Other income (loss)	29			—			(5,196		)	—			(5,167		)
Net realized and unrealized gains (losses) on investments	3,324			(39		)	31,694			—			34,979
Total revenues	8,944			164			273,716			(1,902		)	280,922
Expenses
Net claims and claim expenses incurred	—			—			151,261			—			151,261
Acquisition expenses	—			—			13,883			—			13,883
Operational expenses	(1,196		)	1,542			41,953			—			42,299
Corporate expenses	3,474			48			489			—			4,011
Interest expense	2,559			3,617			645			(1,091		)	5,730
Total expenses	4,837			5,207			208,231			(1,091		)	217,184
Income (loss) before equity in net loss of subsidiaries and taxes	4,107			(5,043		)	65,485			(811		)	63,738
Equity in net income (loss) of subsidiaries	29,407			(2,568		)	—			(26,839		)	—
Income (loss) from continuing operations before taxes	33,514			(7,611		)	65,485			(27,650		)	63,738
Income tax benefit	—			1,512			261			—			1,773
Income (loss) from continuing operations	33,514			(6,099		)	65,746			(27,650		)	65,511
Loss from discontinued operations	—			(10,094		)	—			—			(10,094		)
Net income (loss)	33,514			(16,193		)	65,746			(27,650		)	55,417
Net income attributable to noncontrolling interest	—			—			(21,903		)	—			(21,903		)
Net income (loss) attributable to RenaissanceRe	33,514			(16,193		)	43,843			(27,650		)	33,514
Dividends on preference shares	(8,750		)	—			—			—			(8,750		)
Net income (loss) attributable to RenaissanceRe common shareholders	$	24,764		$	(16,193	)	$	43,843		$	(27,650	)	$	24,764

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Statement of Comprehensive Income (Loss) for the three months ended June 30, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)		RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)			RenaissanceRe Consolidated
Comprehensive income (loss)
Net income (loss)	$	33,514	$	(16,193	)	$	65,746		$	(27,650	)	$	55,417
Change in net unrealized gains on investments	—		—			(1,817		)	—			(1,817		)
Portion of other-than-temporary impairments recognized in other comprehensive income (loss)	—		—			—			—			—
Comprehensive income (loss)	33,514		(16,193		)	63,929			(27,650		)	53,600
Net income attributable to noncontrolling interests	—		—			(21,903		)	—			(21,903		)
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests	—		—			3			—			3
Comprehensive income attributable to noncontrolling interests	—		—			(21,900		)	—			(21,900		)
Comprehensive income (loss) attributable to RenaissanceRe	$	33,514	$	(16,193	)	$	42,029		$	(27,650	)	$	31,700

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Statement of Operations for the six months ended June 30, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)			RenaissanceRe Consolidated
Revenues
Net premiums earned	$	—		$	—		$	522,716		$	—		$	522,716
Net investment income	10,750			219			84,643			(2,003		)	93,609
Net foreign exchange gains (losses)	96			—			(3,957		)	—			(3,861		)
Equity in losses of other ventures	—			—			(18,625		)	—			(18,625		)
Other income	195			—			44,783			—			44,978
Net realized and unrealized gains (losses) on investments	2,332			(39		)	27,472			—			29,765
Total revenues	13,373			180			657,032			(2,003		)	668,582
Expenses
Net claims and claim expenses incurred	—			—			779,798			—			779,798
Acquisition expenses	—			—			46,218			—			46,218
Operational expenses	(2,416		)	3,044			83,501			—			84,129
Corporate expenses	5,515			109			451			—			6,075
Interest expense	7,534			7,335			1,754			(4,698		)	11,925
Total expenses	10,633			10,488			911,722			(4,698		)	928,145
Income (loss) before equity in net loss of subsidiaries and taxes	2,740			(10,308		)	(254,690		)	2,695			(259,563		)
Equity in net loss subsidiaries	(208,799		)	(732		)	—			209,531			—
Loss from continuing operations before taxes	(206,059		)	(11,040		)	(254,690		)	212,226			(259,563		)
Income tax benefit (expense)	290			3,077			(1,542		)	—			1,825
Loss from continuing operations	(205,769		)	(7,963		)	(256,232		)	212,226			(257,738		)
Loss from discontinued operations	—			(11,620		)	—			—			(11,620		)
Net loss	(205,769		)	(19,583		)	(256,232		)	212,226			(269,358		)
Net loss attributable to redeemable noncontrolling interest – DaVinciRe	—			—			63,589			—			63,589
Net loss attributable to RenaissanceRe	(205,769		)	(19,583		)	(192,643		)	212,226			(205,769		)
Dividends on preference shares	(17,500		)	—			—			—			(17,500		)
Net loss attributable to RenaissanceRe common shareholders	$	(223,269	)	$	(19,583	)	$	(192,643	)	$	212,226		$	(223,269	)

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Statement of Comprehensive Loss for the six months ended June 30, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			Consolidating Adjustments (2)		RenaissanceRe Consolidated
Comprehensive loss
Net loss	$	(205,769	)	$	(19,583	)	$	(256,232	)	$	212,226	$	(269,358	)
Change in net unrealized gains on investments	—			—			(1,798		)	—		(1,798		)
Portion of other-than-temporary impairments recognized in other comprehensive loss	—			—			—			—		—
Comprehensive loss	(205,769		)	(19,583		)	(258,030		)	212,226		(271,156		)
Net loss attributable to noncontrolling interests	—			—			63,589			—		63,589
Change in net unrealized gains on fixed maturity investments available for sale attributable to noncontrolling interests	—			—			6			—		6
Comprehensive loss attributable to noncontrolling interests	—			—			63,595			—		63,595
Comprehensive loss attributable to RenaissanceRe	$	(205,769	)	$	(19,583	)	$	(194,435	)	$	212,226	$	(207,561	)

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

(2) Includes Parent Guarantor and Subsidiary Issuer consolidating adjustments.

Condensed Consolidating Statement of Cash Flows for the six months ended June 30, 2012	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			RenaissanceRe Consolidated
Cash flows provided by (used in) operating activities
Net cash provided by (used in) operating activities	$	9,361		$	(21,004	)	$	315,420		$	303,777
Cash flows provided by (used in) investing activities
Proceeds from sales and maturities of fixed maturity investments trading	507,082			124,658			4,160,962			4,792,702
Purchases of fixed maturity investments trading	(405,809		)	(57,652		)	(4,849,441		)	(5,312,902		)
Proceeds from sales and maturities of fixed maturity investments available for sale	—			—			37,530			37,530
Net sales (purchases) of short term investments	141,196			(3,483		)	45,892			183,605
Net sales of other investments	—			—			18,681			18,681
Net sales of other assets	—			—			(166		)	(166		)
Dividends and return of capital from subsidiaries	256,153			4,298			(260,451		)	—
Contributions to subsidiaries	(372,700		)	(50,000		)	422,700			—
Due to (from) subsidiary	(5,856		)	(866		)	6,722			—
Net cash provided by (used in) investing activities	120,066			16,955			(417,571		)	(280,550		)
Cash flows (used in) provided by financing activities
Dividends paid – RenaissanceRe common shares	(27,673		)	—			—			(27,673		)
Dividends paid – preference shares	(17,500		)	—			—			(17,500		)
RenaissanceRe common share repurchases	(90,111		)	—			—			(90,111		)
Third party DaVinciRe share transactions	—			—			160,864			160,864
Net cash (used in) provided by financing activities	(135,284		)	—			160,864			25,580
Effect of exchange rate changes on foreign currency cash	—			—			(1,559		)	(1,559		)
Net (decrease) increase in cash and cash equivalents	(5,857		)	(4,049		)	57,154			47,248
Cash and cash equivalents, beginning of period	10,606			4,920			201,458			216,984
Cash and cash equivalents, end of period	$	4,749		$	871		$	258,612		$	264,232

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.

Condensed Consolidating Statement of Cash Flows for the six months ended June 30, 2011	RenaissanceRe Holdings Ltd. (Parent Guarantor)			RenRe North America Holdings Inc. (Subsidiary Issuer)			Other RenaissanceRe Holdings Ltd. Subsidiaries and Eliminations (Non-guarantor Subsidiaries) (1)			RenaissanceRe Consolidated
Cash flows provided by (used in) operating activities
Net cash provided by (used in) operating activities	$	123,220		$	(25,043	)	$	(67,181	)	$	30,996
Cash flows provided by investing activities
Proceeds from sales and maturities of fixed maturity investments trading	28,749			72,982			2,777,484			2,879,215
Purchases of fixed maturity investments trading	(33,626		)	(208,847		)	(2,569,205		)	(2,811,678		)
Proceeds from sales and maturities of fixed maturity investments available for sale	—			—			48,135			48,135
Purchases of fixed maturity investments available for sale	—			—			(4,078		)	(4,078		)
Net purchases of equity investments trading	—			—			(32,676		)	(32,676		)
Net sales of short term investments	24,965			7,468			18,419			50,852
Net sales (purchases) of other investments	102,717			—			(126,598		)	(23,881		)
Net purchases of investments in other ventures	—			—			(21,000		)	(21,000		)
Net sales of other assets	—			—			46,984			46,984
Dividends and return of capital from subsidiaries	718,294			9,306			(727,600		)	—
Contributions to subsidiaries	(262,115		)	(5,700		)	267,815			—
Due (from) to subsidiaries	(230,079		)	1,645			228,434			—
Net proceeds from sale of discontinued operations held for sale	—			269,520			—			269,520
Net cash provided by investing activities	348,905			146,374			(93,886		)	401,393
Cash flows used in financing activities
Dividends paid – RenaissanceRe common shares	(26,721		)	—			—			(26,721		)
Dividends paid – preference shares	(17,500		)	—			—			(17,500		)
RenaissanceRe common share repurchases	(174,792		)	—			—			(174,792		)
Net repayment of debt	(253,512		)	(124,995		)	178,507			(200,000		)
Third party DaVinciRe share transactions	—			—			(56,708		)	(56,708		)
Net cash used in financing activities	(472,525		)	(124,995		)	121,799			(475,721		)
Effect of exchange rate changes on foreign currency cash	—			—			3,331			3,331
Net decrease in cash and cash equivalents	(400		)	(3,664		)	(35,937		)	(40,001		)
Cash and cash equivalents, beginning of period	3,414			3,940			270,384			277,738
Cash and cash equivalents, end of period	$	3,014		$	276		$	234,447		$	237,737

(1) Includes all other subsidiaries of RenaissanceRe Holdings Ltd. and eliminations.