$PREJF
PARTNERRE LTD Stock $prejf

$prejf Overview Financials Valuation SEC Filings Company Website

2010 Q4 Form 10-K Financial Statement

#000119312512077514 Filed on February 24, 2012

Income Statement

Concept	2010 Q4	2010 Q3	2010 Q2
Revenue	$1.287B	$1.774B	$1.326B
YoY Change	-16.93%	12.68%	4.27%
Cost Of Revenue	$817.8M	$748.9M	$704.6M
YoY Change	10.02%	30.42%	53.54%
Gross Profit	$469.5M	$303.0M	$156.0M
YoY Change	-41.77%	-69.72%	-80.8%
Gross Profit Margin	36.47%	17.08%	11.77%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$246.6M	$261.6M	$244.1M
YoY Change	-9.04%	12.52%	34.34%
% of Gross Profit	52.52%	86.34%	156.47%
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$12.20M	$12.30M	$12.80M
YoY Change	84.85%	98.39%	103.17%
% of Operating Profit
Other Income/Expense, Net	$133.2M	$118.2M	$160.2M
YoY Change	-9.08%	15.66%	62.64%
Pretax Income	$60.40M	$596.2M	$207.4M
YoY Change	-84.6%	-9.47%	-60.5%
Income Tax	$10.90M	$72.60M	$17.80M
% Of Pretax Income	18.05%	12.18%	8.58%
Net Earnings	$57.00M	$524.9M	$190.9M
YoY Change	-83.92%	-7.38%	-59.74%
Net Earnings / Revenue	4.43%	29.58%	14.4%
Basic Earnings Per Share	$0.66	$6.86	$2.36
Diluted Earnings Per Share	$0.65	$6.76	$2.31
COMMON SHARES
Basic Shares Outstanding	74.50M shares	75.24M shares	77.37M shares
Diluted Shares Outstanding		76.43M shares	78.80M shares

Balance Sheet

Concept	2010 Q4	2010 Q3	2010 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$2.111B	$1.438B	$1.085B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment
YoY Change
Goodwill	$455.5M	$455.5M
YoY Change	0.0%
Intangibles	$178.7M	$191.3M
YoY Change	-27.72%
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$23.36B	$24.27B
YoY Change	-1.55%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities
YoY Change
LONG-TERM LIABILITIES
Long-Term Debt
YoY Change
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities
YoY Change
TOTAL LIABILITIES
Total Short-Term Liabilities
Total Long-Term Liabilities
Total Liabilities	$16.16B	$16.69B
YoY Change	0.44%
SHAREHOLDERS EQUITY
Retained Earnings	$4.761B	$4.753B
YoY Change	16.1%
Common Stock	$84.03M	$83.54M
YoY Change	1.75%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.083B	$682.8M
YoY Change	291032.26%
Treasury Stock Shares	14.05M shares	8.957M shares
Shareholders Equity
YoY Change
Total Liabilities & Shareholders Equity	$23.36B	$24.27B
YoY Change	-1.55%

Cashflow Statement

Concept	2010 Q4	2010 Q3	2010 Q2
OPERATING ACTIVITIES
Net Income	$57.00M	$524.9M	$190.9M
YoY Change	-83.92%	-7.38%	-59.74%
Depreciation, Depletion And Amortization	$246.6M	$261.6M	$244.1M
YoY Change	-9.04%	12.52%	34.34%
Cash From Operating Activities
YoY Change
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities
YoY Change
Cash From Investing Activities
YoY Change
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities
YoY Change
NET CHANGE
Cash From Operating Activities
Cash From Investing Activities
Cash From Financing Activities
Net Change In Cash
YoY Change
FREE CASH FLOW
Cash From Operating Activities
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2011	dei	Document Type DocumentType	10-K
CY2011	dei	Amendment Flag AmendmentFlag	false
CY2011	dei	Document Period End Date DocumentPeriodEndDate	2011-12-31
CY2011	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2011
CY2011	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2011	dei	Entity Registrant Name EntityRegistrantName	PARTNERRE LTD.
CY2011	dei	Entity Central Index Key EntityCentralIndexKey	0000911421
CY2011	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2011	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2012Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	65392803	shares
CY2011	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2011	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2011	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2011Q2	dei	Entity Public Float EntityPublicFloat	4654659330000	USD
CY2011Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	13941829000	USD
CY2011Q4	pre	Short Term Investments Trading Securities At Fair Value ShortTermInvestmentsTradingSecuritiesAtFairValue	42571000	USD
CY2011Q4	us-gaap	Trading Securities Equity TradingSecuritiesEquity	944691000	USD
CY2011Q4	us-gaap	Other Investments OtherInvestments	358154000	USD
CY2011Q4	us-gaap	Investments Investments	15287245000	USD
CY2011Q4	pre	Funds Held Directly Managed FundsHeldDirectlyManaged	1268010000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1342257000	USD
CY2011Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	189074000	USD
CY2011Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	2059976000	USD
CY2011Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	397788000	USD
CY2011Q4	us-gaap	Funds Held Under Reinsurance Agreements Asset FundsHeldUnderReinsuranceAgreementsAsset	796290000	USD
CY2011Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	547202000	USD
CY2011Q4	us-gaap	Deposit Contracts Assets DepositContractsAssets	241513000	USD
CY2011Q4	pre	Net Tax Assets NetTaxAssets	66574000	USD
CY2011Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	133867000	USD
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CY2011Q4	us-gaap	Assets Assets	22855373000	USD
CY2011Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	11273091000	USD
CY2011Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	1645662000	USD
CY2011Q4	us-gaap	Unearned Premiums UnearnedPremiums	1448841000	USD
CY2011Q4	us-gaap	Reinsurance Payable ReinsurancePayable	443873000	USD
CY2011Q4	us-gaap	Deposit Contracts Liabilities DepositContractsLiabilities	249382000	USD
CY2011Q4	pre	Net Tax Liabilities NetTaxLiabilities	297153000	USD
CY2011Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	208840000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	16387831000	USD
CY2011Q4	us-gaap	Senior Notes SeniorNotes	750000000	USD
CY2011Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	70989000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	84767000	USD
CY2011Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3803796000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	4267000	USD
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CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6467542000	USD
CY2010Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	12824389000	USD
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CY2010Q4	us-gaap	Trading Securities Equity TradingSecuritiesEquity	1071676000	USD
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CY2010Q4	us-gaap	Investments Investments	14297867000	USD
CY2010Q4	pre	Funds Held Directly Managed FundsHeldDirectlyManaged	1772118000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2111084000	USD
CY2010Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	201928000	USD
CY2010Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	2076884000	USD
CY2010Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	382878000	USD
CY2010Q4	us-gaap	Funds Held Under Reinsurance Agreements Asset FundsHeldUnderReinsuranceAgreementsAsset	937032000	USD
CY2010Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	595557000	USD
CY2010Q4	us-gaap	Deposit Contracts Assets DepositContractsAssets	256702000	USD
CY2010Q4	pre	Net Tax Assets NetTaxAssets	14960000	USD
CY2010Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	178715000	USD
CY2010Q4	us-gaap	Other Assets OtherAssets	83113000	USD
CY2010Q4	us-gaap	Assets Assets	23364371000	USD
CY2010Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	10666604000	USD
CY2010Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	1750410000	USD
CY2010Q4	us-gaap	Unearned Premiums UnearnedPremiums	1599139000	USD
CY2010Q4	us-gaap	Reinsurance Payable ReinsurancePayable	491194000	USD
CY2010Q4	us-gaap	Deposit Contracts Liabilities DepositContractsLiabilities	268239000	USD
CY2010Q4	pre	Net Tax Liabilities NetTaxLiabilities	316325000	USD
CY2010Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	244552000	USD
CY2010Q4	us-gaap	Senior Notes SeniorNotes	750000000	USD
CY2010Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	70989000	USD
CY2010Q4	us-gaap	Liabilities Liabilities	16157452000	USD
CY2010Q4	us-gaap	Common Stock Value CommonStockValue	84033000	USD
CY2010Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3419864000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	16101000	USD
CY2010Q4	pre	Other Accumulated Comprehensive Income Loss Net Of Tax OtherAccumulatedComprehensiveIncomeLossNetOfTax	-12045000	USD
CY2010Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	4761178000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	7206919000	USD
CY2010Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	23364371000	USD
CY2011Q4	us-gaap	Preferred Stock Value PreferredStockValue	35750000	USD
CY2010	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	12597000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	852552000	USD
CY2010	us-gaap	Dividends Preferred Stock DividendsPreferredStock	34525000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	818027000	USD
CY2010	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-66742000	USD
CY2010	pre	Change In Other Accumulated Comprehensive Income Loss Net Of Tax ChangeInOtherAccumulatedComprehensiveIncomeLossNetOfTax	-14129000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	771681000	USD
CY2011	us-gaap	Premiums Written Net PremiumsWrittenNet	4486329000	USD
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	10.65
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	10.46
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	76839519	shares
CY2010Q4	us-gaap	Preferred Stock Value PreferredStockValue	20800000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	455533000	USD
CY2010Q4	us-gaap	Goodwill Goodwill	455533000	USD
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	1479230000	USD
CY2010Q4	us-gaap	Treasury Stock Value TreasuryStockValue	1083012000	USD
CY2011Q4	pre	Fixed Maturities Trading Securities Amortized Cost FixedMaturitiesTradingSecuritiesAmortizedCost	13394404000	USD
CY2010Q4	pre	Fixed Maturities Trading Securities Amortized Cost FixedMaturitiesTradingSecuritiesAmortizedCost	12394797000	USD
CY2011Q4	pre	Short Term Investments Trading Securities Amortized Cost ShortTermInvestmentsTradingSecuritiesAmortizedCost	42563000	USD
CY2010Q4	pre	Short Term Investments Trading Securities Amortized Cost ShortTermInvestmentsTradingSecuritiesAmortizedCost	49132000	USD
CY2011Q4	pre	Equities Trading Securities Cost EquitiesTradingSecuritiesCost	917613000	USD
CY2010Q4	pre	Equities Trading Securities Cost EquitiesTradingSecuritiesCost	942745000	USD
CY2011Q4	pre	Funds Held Directly Managed Cost FundsHeldDirectlyManagedCost	1241222000	USD
CY2010Q4	pre	Funds Held Directly Managed Cost FundsHeldDirectlyManagedCost	1751276000	USD
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
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CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	84766693	shares
CY2010Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	84033089	shares
CY2011Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	19444365	shares
CY2010Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	14046895	shares
CY2011Q4	pre	Other Accumulated Comprehensive Income Loss Tax OtherAccumulatedComprehensiveIncomeLossTax	6590000	USD
CY2010Q4	pre	Other Accumulated Comprehensive Income Loss Tax OtherAccumulatedComprehensiveIncomeLossTax	4872000	USD
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CY2011Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	35750000	shares
CY2010Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	20800000	shares
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CY2011Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	35750000	shares
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CY2010	us-gaap	Other Income OtherIncome	10470000	USD
CY2010	us-gaap	Revenues Revenues	5861205000	USD
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CY2010	us-gaap	Interest Expense InterestExpense	44413000	USD
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	31461000	USD
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CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	128784000	USD
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CY2010	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.05
CY2011	pre	Change In Unearned Premiums ChangeInUnearnedPremiums	161425000	USD
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CY2011	us-gaap	Net Income Loss NetIncomeLoss	-520291000	USD
CY2011	us-gaap	Dividends Preferred Stock DividendsPreferredStock	47020000	USD
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CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	67558732	shares
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CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.35
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CY2009	us-gaap	Interest Expense InterestExpense	28301000	USD
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CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1783392000	USD
CY2009	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	262090000	USD
CY2011	pre	Increase Decrease In Reinsurance Recoverable On Paid And Unpaid Losses Net Of Ceded Premiums Payable IncreaseDecreaseInReinsuranceRecoverableOnPaidAndUnpaidLossesNetOfCededPremiumsPayable	625000	USD
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CY2009	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	23.93
CY2009	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	23.51
CY2009	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62786234	shares
CY2009	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	15552000	USD
CY2009	us-gaap	Net Income Loss NetIncomeLoss	1536854000	USD
CY2009	us-gaap	Dividends Preferred Stock DividendsPreferredStock	34525000	USD
CY2009	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1502329000	USD
CY2009	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	47955000	USD
CY2009	pre	Change In Other Accumulated Comprehensive Income Loss Net Of Tax ChangeInOtherAccumulatedComprehensiveIncomeLossNetOfTax	14164000	USD
CY2009	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63890638	shares
CY2009	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.88
CY2010	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	7645727000	USD
CY2011	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-91339000	USD
CY2011	pre	Increase Decrease In Reinsurance Balances Net IncreaseDecreaseInReinsuranceBalancesNet	-21036000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	1226920000	USD
CY2010	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	270087000	USD
CY2010	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	141157000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	1102508000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	573635000	USD
CY2011	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	336456000	USD
CY2011	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	331432000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1080378000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-241758000	USD
CY2011	pre	Increase Decrease In Funds Held By Reinsured Companies And Funds Held Directly Managed IncreaseDecreaseInFundsHeldByReinsuredCompaniesAndFundsHeldDirectlyManaged	606266000	USD
CY2011	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	-52069000	USD
CY2011	pre	Increase Decrease In Net Tax Assets And Liabilities IncreaseDecreaseInNetTaxAssetsAndLiabilities	-58970000	USD
CY2011	pre	Increase Decrease In Unpaid Losses And Loss Expenses Including Life Policy Benefits IncreaseDecreaseInUnpaidLossesAndLossExpensesIncludingLifePolicyBenefits	606698000	USD
CY2011	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-161425000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-8647000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-20326000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-768827000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	197610000	USD
CY2011	us-gaap	Interest Paid InterestPaid	49259000	USD
CY2010	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-78620000	USD
CY2010	pre	Increase Decrease In Reinsurance Balances Net IncreaseDecreaseInReinsuranceBalancesNet	217066000	USD
CY2010	pre	Increase Decrease In Reinsurance Recoverable On Paid And Unpaid Losses Net Of Ceded Premiums Payable IncreaseDecreaseInReinsuranceRecoverableOnPaidAndUnpaidLossesNetOfCededPremiumsPayable	-30033000	USD
CY2010	pre	Increase Decrease In Funds Held By Reinsured Companies And Funds Held Directly Managed IncreaseDecreaseInFundsHeldByReinsuredCompaniesAndFundsHeldDirectlyManaged	296174000	USD
CY2010	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	-35317000	USD
CY2010	pre	Increase Decrease In Net Tax Assets And Liabilities IncreaseDecreaseInNetTaxAssetsAndLiabilities	-56599000	USD
CY2010	pre	Increase Decrease In Unpaid Losses And Loss Expenses Including Life Policy Benefits IncreaseDecreaseInUnpaidLossesAndLossExpensesIncludingLifePolicyBenefits	227240000	USD
CY2010	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-71355000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-47959000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-922233000	USD
CY2010	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-34420000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	1372775000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	738309000	USD
CY2010	us-gaap	Income Taxes Paid IncomeTaxesPaid	199838000	USD
CY2010	us-gaap	Interest Paid InterestPaid	42995000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	186823000	USD
CY2011	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	205784000	USD
CY2011	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
CY2011	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	16041000	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2010	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	185965000	USD
CY2010	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	192156000	USD
CY2010	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	500000000	USD
CY2010	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	37682000	USD
CY2010	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2638000	USD
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1065121000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	413737000	USD
CY2011	us-gaap	Proceeds From Maturities Repayments And Calls Of Trading Securities Heldforinvestment ProceedsFromMaturitiesRepaymentsAndCallsOfTradingSecuritiesHeldforinvestment	1211016000	USD
CY2010	us-gaap	Proceeds From Maturities Repayments And Calls Of Trading Securities Heldforinvestment ProceedsFromMaturitiesRepaymentsAndCallsOfTradingSecuritiesHeldforinvestment	1272885000	USD
CY2011	pre	Net Proceeds From Issuance Of Preferred Stock And Preference Stock NetProceedsFromIssuanceOfPreferredStockAndPreferenceStock	361722000	USD
CY2010	pre	Net Proceeds From Issuance Of Preferred Stock And Preference Stock NetProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2009	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2009	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	16034000	USD
CY2009	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
CY2009	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-5070000	USD
CY2009	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	200000000	USD
CY2009	pre	Business Acquisition Capital Repayment BusinessAcquisitionCapitalRepayment	330103000	USD
CY2009	us-gaap	Early Repayment Of Subordinated Debt EarlyRepaymentOfSubordinatedDebt	94241000	USD
CY2009	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-765231000	USD
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2010	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	200000000	USD
CY2009	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-17312000	USD
CY2009	pre	Increase Decrease In Reinsurance Balances Net IncreaseDecreaseInReinsuranceBalancesNet	170986000	USD
CY2009	pre	Increase Decrease In Reinsurance Recoverable On Paid And Unpaid Losses Net Of Ceded Premiums Payable IncreaseDecreaseInReinsuranceRecoverableOnPaidAndUnpaidLossesNetOfCededPremiumsPayable	-20836000	USD
CY2009	pre	Increase Decrease In Funds Held By Reinsured Companies And Funds Held Directly Managed IncreaseDecreaseInFundsHeldByReinsuredCompaniesAndFundsHeldDirectlyManaged	54416000	USD
CY2009	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	-67899000	USD
CY2009	pre	Increase Decrease In Net Tax Assets And Liabilities IncreaseDecreaseInNetTaxAssetsAndLiabilities	208052000	USD
CY2009	pre	Increase Decrease In Unpaid Losses And Loss Expenses Including Life Policy Benefits IncreaseDecreaseInUnpaidLossesAndLossExpensesIncludingLifePolicyBenefits	-112108000	USD
CY2009	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-171121000	USD
CY2009	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-33414000	USD
CY2009	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	1098601000	USD
CY2009	us-gaap	Proceeds From Maturities Repayments And Calls Of Trading Securities Heldforinvestment ProceedsFromMaturitiesRepaymentsAndCallsOfTradingSecuritiesHeldforinvestment	1065353000	USD
CY2009	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	201479000	USD
CY2009	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	182211000	USD
CY2009	pre	Cash Acquired In Business Combination CashAcquiredInBusinessCombination	492466000	USD
CY2010	pre	Cash Acquired In Business Combination CashAcquiredInBusinessCombination	0	USD
CY2011	pre	Cash Acquired In Business Combination CashAcquiredInBusinessCombination	0	USD
CY2009	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	118473000	USD
CY2009	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-446676000	USD
CY2009	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	151851000	USD
CY2009	pre	Net Proceeds From Issuance Of Preferred Stock And Preference Stock NetProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2009	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	13335000	USD
CY2009	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-99971000	USD
CY2009	us-gaap	Income Taxes Paid IncomeTaxesPaid	118174000	USD
CY2009	us-gaap	Interest Paid InterestPaid	32476000	USD
CY2008Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	838280000	USD
CY2011	pre	Business Acquisition Capital Repayment BusinessAcquisitionCapitalRepayment	0	USD
CY2010	pre	Business Acquisition Capital Repayment BusinessAcquisitionCapitalRepayment	0	USD
CY2010	us-gaap	Early Repayment Of Subordinated Debt EarlyRepaymentOfSubordinatedDebt	0	USD
CY2011	us-gaap	Early Repayment Of Subordinated Debt EarlyRepaymentOfSubordinatedDebt	0	USD
CY2011	us-gaap	Nature Of Operations NatureOfOperations	<div style="text-align:center;"><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:0px;">PartnerRe Ltd. </font></div><div style="text-align:center;"><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:0px;">Notes to </font><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;">Consolidated </font><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;">Financial Statements</font></div><p style='margin-top:13.5pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:0px;">1. Organization </font></p><p style='margin-top:4.5pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;">PartnerRe Ltd. (the Company) provides reinsurance on a worldwide basis through its principal wholly-owned subsidiaries, including Partner Reinsurance Company Ltd.</font><font style="font-family:Times New Roman;font-size:10pt;"> (PartnerRe Bermuda)</font><font style="font-family:Times New Roman;font-size:10pt;">, Pa</font><font style="font-family:Times New Roman;font-size:10pt;">rtner Reinsurance Europe plc</font><font style="font-family:Times New Roman;font-size:10pt;"> (PartnerRe Europe)</font><font style="font-family:Times New Roman;font-size:10pt;"> and Partner Reinsurance Company of the U.S</font><font style="font-family:Times New Roman;font-size:10pt;"> (PartnerRe U.S</font><font style="font-family:Times New Roman;font-size:10pt;">.</font><font style="font-family:Times New Roman;font-size:10pt;">)</font><font style="font-family:Times New Roman;font-size:10pt;">. Risks reinsured include, but are not limited to, property, casualty, motor, agriculture, aviation/space, catastrophe, credit/surety, engineering, energy, marine, specialty property, specialty casualty, multiline and other lines, mortality, </font><font style="font-family:Times New Roman;font-size:10pt;">longevity</font><font style="font-family:Times New Roman;font-size:10pt;"> and health</font><font style="font-family:Times New Roman;font-size:10pt;"> and alternative risk products</font><font style="font-family:Times New Roman;font-size:10pt;">.</font><font style="font-family:Times New Roman;font-size:10pt;"> The Company</font><font style="font-family:Times New Roman;font-size:10pt;">'s</font><font style="font-family:Times New Roman;font-size:10pt;"> </font><font style="font-family:Times New Roman;font-size:10pt;">alternative risk products</font><font style="font-family:Times New Roman;font-size:10pt;"> </font><font style="font-family:Times New Roman;font-size:10pt;">include weather and credit protection to financial, industrial and service companies on a worldwide basis</font><font style="font-family:Times New Roman;font-size:10pt;">.</font></p><p style='margin-top:9pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;">The Company was incorporated in August 1993 under the laws of Bermuda. The Company commenced operations in November 1993 upon completion of the sale of common shares and warrants pursuant to subscription agreements and an initial public offering. </font></p><p style='margin-top:9pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;">In July 1997, the Company completed the acquisition of SAFR (subsequently renamed PartnerRe SA), and in December 1998, the Company completed the acquisition of the reinsurance operations of Winterthur Group (Winterthur Re). </font></p><p style='margin-top:4.5pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;">Effective October 2, 2009, the Company obtained a controlling interest in PARIS RE Holdings Limited (Paris Re), a French-listed, Swiss-based holding company and its operating subsidiaries. Subsequent to October 2, 2009, the Company acquired additional common shares of Paris Re and effected a statutory merger (Merger), resulting in the Company obtaining 100% ownership of Paris Re on December 7, 2009. The Consolidated Statements of Operations and Cash Flows include the results of Paris Re for the period from October 2, 2009, the date of acquisition of the controllin</font><font style="font-family:Times New Roman;font-size:10pt;">g interest (Acquisition Date) (s</font><font style="font-family:Times New Roman;font-size:10pt;">ee Note 7).</font><font style="font-family:Times New Roman;font-size:10pt;"> </font></p>
CY2011	us-gaap	Basis Of Accounting BasisOfAccounting	<p style='margin-top:4.5pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;">The Company's Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States (U.S. GAAP). The Consolidated Financial Statements include the accounts of the Company and its subsidiaries. Intercompany accounts and transactions have been eliminated. To facilitate comparison of information across periods, certain reclassifications have been made to prior year amounts to conform to the current year's presentation. </font></p><p style='margin-top:9pt; margin-bottom:0pt'> </p>
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet	40180000	USD
CY2011	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss Included In Investment Income FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInInvestmentIncome	-3281000	USD
CY2011	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	<p style='margin-top:9pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;">In October 2010, the </font><font style="font-family:Times New Roman;font-size:10pt;">Financial Accounting Standards Board (</font><font style="font-family:Times New Roman;font-size:10pt;">FASB</font><font style="font-family:Times New Roman;font-size:10pt;">)</font><font style="font-family:Times New Roman;font-size:10pt;"> issued new accounting guidance clarifying that only acquisition costs related directly to the successful acquisition of new or renewal insurance contracts may be capitalized. Those acquisition costs that may be capitalized include incremental direct costs, such as commissions, and a portion of salaries and benefits of certain employees who are involved in underwriting and policy issuance, that are directly related to time spent on an acquired contract. This guidance is effective for interim and annual periods beginning after December 15, 2011. </font><font style="font-family:Times New Roman;font-size:10pt;">The Company does not expect the adoption of this guidance to have an impact on its consolidated shareholders' equity or net income</font><font style="font-family:Times New Roman;font-size:10pt;">.</font></p><p style='margin-top:4.5pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;">In May 2011, the F</font><font style="font-family:Times New Roman;font-size:10pt;">ASB</font><font style="font-family:Times New Roman;font-size:10pt;"> issued new accounting guidance, which updates the existing guidance, related to fair value measurement and disclosures. The </font><font style="font-family:Times New Roman;font-size:10pt;">guidance </font><font style="font-family:Times New Roman;font-size:10pt;">clarifies or changes the application of certain existing requirements and </font><font style="font-family:Times New Roman;font-size:10pt;">does</font><font style="font-family:Times New Roman;font-size:10pt;"> not extend the use of fair value. The</font><font style="font-family:Times New Roman;font-size:10pt;"> guidance</font><font style="font-family:Times New Roman;font-size:10pt;"> </font><font style="font-family:Times New Roman;font-size:10pt;">also require</font><font style="font-family:Times New Roman;font-size:10pt;">s</font><font style="font-family:Times New Roman;font-size:10pt;"> additional disclosures</font><font style="font-family:Times New Roman;font-size:10pt;"> including </font><font style="font-family:Times New Roman;font-size:10pt;">details of </font><font style="font-family:Times New Roman;font-size:10pt;">transfers between Levels 1 and 2 of the fair value hierarchy </font><font style="font-family:Times New Roman;font-size:10pt;">and</font><font style="font-family:Times New Roman;font-size:10pt;"> increased quantitative and qualitative information relating to fair value measurements categorized under Level 3 of the fair value hiera</font><font style="font-family:Times New Roman;font-size:10pt;">r</font><font style="font-family:Times New Roman;font-size:10pt;">chy</font><font style="font-family:Times New Roman;font-size:10pt;">. The guidance is effective for interim and annual periods beginning after December 15, 2011. The Company </font><font style="font-family:Times New Roman;font-size:10pt;">does not expect the adoption of this guidance to have an impact on its consolidated shareholders' equity or net income and </font><font style="font-family:Times New Roman;font-size:10pt;">is currently evaluating the impact of the adoption of this guidance on its disclosures.</font></p><p style='margin-top:9pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;">In September 2011, the FASB issued new accounting guidance, which updates the existing guidance, related to goodwill impairment testing. The amendments revise the application of certain existing requirements to allow the option of performing a qualitative goodwill impairment assessment before calculating the fair value of reporting units, which could, depending on the results of the assessment, eliminate the need for further testing of goodwill for impairment. The guidance is effective for interim and annual periods beginning after December 15, 2011 with early adoption permitted. The Company does not expect the adoption of this guidance to have an impact on its consolidated shareholders' equity or net income</font><font style="font-family:Times New Roman;font-size:10pt;">.</font></p><p style='margin-top:9pt; margin-bottom:0pt'><font style="font-family:Times;font-size:10pt;margin-left:24.5px;">In December 2011, the FASB issued new guidance aimed at enhancing disclosures about financial and derivative instruments and transactions subject to offsetting arrangements. The guidance is effective for interim and annual periods beginning on or after January 1, 2013. The Company is currently evaluating the impact of the adoption of this guidance on its disclosures.</font></p>
CY2011	us-gaap	Use Of Estimates UseOfEstimates	<p style='margin-top:9pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;">The preparation of financial statements in conformity with U.S. GAAP requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. While Management believes that the amounts included in the Consolidated Financial Statements reflect its best estimates and assumptions, actual results could differ from those estimates. The Company's principal estimates include: </font></p><p style='margin-top:4.5pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:30.6px;">•       Unpaid losses and loss expenses; </font></p><p style='margin-top:4.5pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:30.6px;">•       Policy benefits for life and annuity contracts; </font></p><p style='margin-top:4.5pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:30.6px;">•        Gross and net premiums written and net premiums earned; </font></p><p style='margin-top:4.5pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:30.6px;">•       Recoverability of deferred acquisition costs; </font></p><p style='margin-top:4.5pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:30.6px;">•       Recoverability of deferred tax assets; </font></p><p style='margin-top:4.5pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:30.6px;">•       Valuation of goodwill and intangible assets; and </font></p><p style='margin-top:4.5pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:30.6px;">•        Valuation of certain assets and derivative financial instruments that are measured using significant unobservable inputs.</font></p>
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	609489000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	235140000	USD
CY2010Q4	pre	Other Invested Assets Carried At Fair Value OtherInvestedAssetsCarriedAtFairValue	111374000	USD
CY2010Q4	pre	Funds Held Directly Managed Investments Carried At Fair Value FundsHeldDirectlyManagedInvestmentsCarriedAtFairValue	1542931000	USD
CY2011Q4	pre	Other Invested Assets Carried At Fair Value OtherInvestedAssetsCarriedAtFairValue	90512000	USD
CY2010Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	15599767000	USD
CY2011Q4	pre	Funds Held Directly Managed Investments Carried At Fair Value FundsHeldDirectlyManagedInvestmentsCarriedAtFairValue	1057553000	USD
CY2011Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	16077156000	USD
CY2010Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	500286000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings	-45942000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	350105000	USD
CY2010	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings	29239000	USD
CY2009Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	291769000	USD
CY2010	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases Sales Issuances Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements	172182000	USD
CY2010	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet	7096000	USD
CY2010	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss Included In Investment Income FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInInvestmentIncome	-4397000	USD
CY2011	us-gaap	Fair Value Option Changes In Fair Value Gain Loss FairValueOptionChangesInFairValueGainLoss	7378000	USD
CY2010	us-gaap	Fair Value Option Changes In Fair Value Gain Loss FairValueOptionChangesInFairValueGainLoss	230641000	USD
CY2009	us-gaap	Fair Value Option Changes In Fair Value Gain Loss FairValueOptionChangesInFairValueGainLoss	512807000	USD
CY2010	pre	Funds Held Investment Interest Rate Range End FundsHeldInvestmentInterestRateRangeEnd	0.06	pure
CY2011	pre	Funds Held Investment Interest Rate Range End FundsHeldInvestmentInterestRateRangeEnd	0.05	pure
CY2011	pre	Funds Held Investment Interest Rate Range Start FundsHeldInvestmentInterestRateRangeStart	0.02	pure
CY2010	pre	Funds Held Investment Interest Rate Range Start FundsHeldInvestmentInterestRateRangeStart	0.03	pure
CY2011Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	21300000	USD
CY2011Q4	us-gaap	Marketable Securities Restricted MarketableSecuritiesRestricted	2314700000	USD
CY2010Q4	us-gaap	Marketable Securities Restricted MarketableSecuritiesRestricted	1679200000	USD
CY2010Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	271200000	USD
CY2010Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	70585000	USD
CY2010Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	25347000	USD
CY2010Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	45238000	USD
CY2010Q4	pre	Goodwill And Intangible Assets GoodwillAndIntangibleAssets	634248000	USD
CY2011	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	-44848000	USD
CY2011Q4	pre	Goodwill And Intangible Assets GoodwillAndIntangibleAssets	589400000	USD
CY2009Q4	pre	Goodwill And Intangible Assets GoodwillAndIntangibleAssets	702802000	USD
CY2010	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	-68554000	USD
CY2011Q4	pre	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	287546000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	153679000	USD
CY2010Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	108831000	USD
CY2010Q4	pre	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	287546000	USD
CY2011	us-gaap	Future Amortization Expense Year One FutureAmortizationExpenseYearOne	31799000	USD
CY2011	us-gaap	Future Amortization Expense Year Two FutureAmortizationExpenseYearTwo	19479000	USD
CY2011	us-gaap	Future Amortization Expense Year Three FutureAmortizationExpenseYearThree	15950000	USD
CY2011	us-gaap	Future Amortization Expense Year Four FutureAmortizationExpenseYearFour	13900000	USD
CY2011	us-gaap	Future Amortization Expense Year Five FutureAmortizationExpenseYearFive	12034000	USD
CY2010Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	10317857000	USD
CY2010Q4	pre	Effect Of Foreign Exchange Rate Changes EffectOfForeignExchangeRateChanges	-171464000	USD
CY2010	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaid	2579018000	USD
CY2011	us-gaap	Finite Lived Intangible Assets Future Amortization Expense FiniteLivedIntangibleAssetsFutureAmortizationExpense	93162000	USD
CY2011	pre	Amortization Of Acquisition Costs Of Acquired Entity AmortizationOfAcquisitionCostsOfAcquiredEntity	8400000	USD
CY2010	pre	Amortization Of Acquisition Costs Of Acquired Entity AmortizationOfAcquisitionCostsOfAcquiredEntity	37100000	USD
CY2009	pre	Amortization Of Acquisition Costs Of Acquired Entity AmortizationOfAcquisitionCostsOfAcquiredEntity	46400000	USD
CY2009	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	-40300000	USD
CY2011Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Reported Claims Amount LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedClaimsAmount	5187761000	USD
CY2011Q4	pre	Liability For Unpaid Claims And Claims Adjustment Expense Additional Case Reserves Amount LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseAdditionalCaseReservesAmount	495593000	USD
CY2011Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred But Not Reported Ibnr Claims Amount LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount	5589737000	USD
CY2010Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Reported Claims Amount LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedClaimsAmount	4652281000	USD
CY2010Q4	pre	Liability For Unpaid Claims And Claims Adjustment Expense Additional Case Reserves Amount LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseAdditionalCaseReservesAmount	326721000	USD
CY2010Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred But Not Reported Ibnr Claims Amount LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount	5687602000	USD
CY2011	us-gaap	Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense	<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 12px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"> </td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">2011</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">2010</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">2009</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 7px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"> </td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Gross liability at beginning of year </font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">10,666,604</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">10,811,483</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">7,510,666</font></td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Reinsurance recoverable at beginning of year </font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">348,747</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">336,352</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">125,215</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 7px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"> </td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Net liability at beginning of year </font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">10,317,857</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">10,475,131</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">7,385,451</font></td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 10px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"> </td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Net liability acquired related to Paris Re </font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">— </font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">— </font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">3,176,255</font></td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 10px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"> </td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Net incurred losses related to:</font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Current year </font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">4,252,766</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">3,137,874</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">2,340,768</font></td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Prior years </font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(530,457)</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(477,883)</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(485,809)</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 7px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"> </td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"> </td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">3,722,309</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">2,659,991</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">1,854,959</font></td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 10px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"> </td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Change in Paris Re Reserve Agreement </font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(61,383)</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(66,783)</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(32,027)</font></td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 10px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"> </td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Net paid losses related to:</font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Current year </font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">930,407</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">311,253</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">327,080</font></td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Prior years </font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">2,060,152</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">2,267,765</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">1,716,798</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 7px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"> </td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"> </td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">2,990,559</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">2,579,018</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">2,043,878</font></td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Effects of foreign exchange rate changes </font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(68,238)</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(171,464)</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">134,371</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 7px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"> </td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Net liability at end of year </font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">10,919,986</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">10,317,857</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">10,475,131</font></td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Reinsurance recoverable at end of year </font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">353,105</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">348,747</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">336,352</font></td><td style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 7px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"> </td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"> </td><td style="width: 111px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:111px;"> </td><td style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:7px;"> </td></tr><tr style="height: 17px"><td style="width: 302px; text-align:left;border-color:#000000;min-width:302px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Gross liability at end of year </font></td><td style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">11,273,091</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">10,666,604</font></td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:right;border-color:#000000;min-width:7px;"> </td><td style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 111px; text-align:right;border-color:#000000;min-width:111px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">10,811,483</font></td><td style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"> </td></tr></table></div>
CY2011Q4	pre	Net Liability Acquired NetLiabilityAcquired	0	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsCurrentYear	4252766000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsPriorYears	-530457000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims	3722309000	USD
CY2011	pre	Change In Reserve Agreement ChangeInReserveAgreement	-61383000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear	930407000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears	2060152000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaid	2990559000	USD
CY2011Q4	pre	Effect Of Foreign Exchange Rate Changes EffectOfForeignExchangeRateChanges	-68238000	USD
CY2011Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	10919986000	USD
CY2011Q4	pre	Reinsurance Recoverables Non Life ReinsuranceRecoverablesNonLife	353105000	USD
CY2010Q4	pre	Reinsurance Recoverables Non Life ReinsuranceRecoverablesNonLife	348747000	USD
CY2010	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears	2267765000	USD
CY2010	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear	311253000	USD
CY2010	pre	Change In Reserve Agreement ChangeInReserveAgreement	-66783000	USD
CY2010	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims	2659991000	USD
CY2010	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsPriorYears	-477883000	USD
CY2010	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsCurrentYear	3137874000	USD
CY2010Q4	pre	Net Liability Acquired NetLiabilityAcquired	0	USD
CY2009Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	10475131000	USD
CY2009Q4	pre	Reinsurance Recoverables Non Life ReinsuranceRecoverablesNonLife	336352000	USD
CY2009Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	10811483000	USD
CY2009Q4	pre	Net Liability Acquired NetLiabilityAcquired	3176255000	USD
CY2009	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsCurrentYear	2340768000	USD
CY2009	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsPriorYears	-485809000	USD
CY2009	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims	1854959000	USD
CY2009	pre	Change In Reserve Agreement ChangeInReserveAgreement	-32027000	USD
CY2009	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear	327080000	USD
CY2009	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears	1716798000	USD
CY2009	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaid	2043878000	USD
CY2009Q4	pre	Effect Of Foreign Exchange Rate Changes EffectOfForeignExchangeRateChanges	134371000	USD
CY2008Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	7510666000	USD
CY2008Q4	pre	Reinsurance Recoverables Non Life ReinsuranceRecoverablesNonLife	125215000	USD
CY2008Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	7385451000	USD
CY2011Q4	us-gaap	Liability For Asbestos And Environmental Claims Net LiabilityForAsbestosAndEnvironmentalClaimsNet	195000000	USD
CY2011Q4	us-gaap	Liability For Asbestos And Environmental Claims Gross LiabilityForAsbestosAndEnvironmentalClaimsGross	203000000	USD
CY2010Q4	us-gaap	Liability For Asbestos And Environmental Claims Net LiabilityForAsbestosAndEnvironmentalClaimsNet	214000000	USD
CY2010Q4	us-gaap	Liability For Asbestos And Environmental Claims Gross LiabilityForAsbestosAndEnvironmentalClaimsGross	222000000	USD
CY2010	pre	Liability For Future Policy Benefits Expense Incurred Claims Prior Years LiabilityForFuturePolicyBenefitsExpenseIncurredClaimsPriorYears	-12000000	USD
CY2009	pre	Liability For Future Policy Benefits Expense Incurred Claims Prior Years LiabilityForFuturePolicyBenefitsExpenseIncurredClaimsPriorYears	15000000	USD
CY2011	us-gaap	Traditional Life Interest Rate Low End TraditionalLifeInterestRateLowEnd	0.01	pure
CY2011	us-gaap	Traditional Life Interest Rate High End TraditionalLifeInterestRateHighEnd	0.07	pure
CY2010	us-gaap	Traditional Life Interest Rate High End TraditionalLifeInterestRateHighEnd	0.06	pure
CY2010	us-gaap	Traditional Life Interest Rate Low End TraditionalLifeInterestRateLowEnd	0.01	pure
CY2011Q4	pre	Guaranteed Reserves GuaranteedReserves	1012000000	USD
CY2011Q4	pre	Amounts Payable Under Reserve Agreements AmountsPayableUnderReserveAgreements	183000000	USD
CY2010Q4	pre	Amounts Payable Under Reserve Agreements AmountsPayableUnderReserveAgreements	128000000	USD
CY2010Q4	pre	Guaranteed Reserves GuaranteedReserves	1239000000	USD
CY2011	pre	Liability For Future Policy Benefits Expense Incurred Claims Prior Years LiabilityForFuturePolicyBenefitsExpenseIncurredClaimsPriorYears	1000000	USD
CY2011	us-gaap	Ceded Premiums Written CededPremiumsWritten	146725000	USD
CY2011	pre	Assumed Premiums Earned AssumedPremiumsEarned	4789293000	USD
CY2011	pre	Ceded Premiums Earned CededPremiumsEarned	141539000	USD
CY2011	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	4456094000	USD
CY2011	us-gaap	Reinsurance Costs And Recoveries Net ReinsuranceCostsAndRecoveriesNet	83524000	USD
CY2010	us-gaap	Ceded Premiums Written CededPremiumsWritten	180150000	USD
CY2010	pre	Assumed Premiums Earned AssumedPremiumsEarned	4956897000	USD
CY2010	pre	Ceded Premiums Earned CededPremiumsEarned	180426000	USD
CY2009	pre	Earnings Per Share Attributable To Non Controlling Interest Of Subsidiary EarningsPerShareAttributableToNonControllingInterestOfSubsidiary	0.07
CY2010	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	3399157000	USD
CY2010	us-gaap	Reinsurance Costs And Recoveries Net ReinsuranceCostsAndRecoveriesNet	115539000	USD
CY2009	us-gaap	Ceded Premiums Written CededPremiumsWritten	52184000	USD
CY2009	pre	Assumed Premiums Earned AssumedPremiumsEarned	4202379000	USD
CY2009	pre	Ceded Premiums Earned CededPremiumsEarned	82554000	USD
CY2009	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	2313951000	USD
CY2009	us-gaap	Reinsurance Costs And Recoveries Net ReinsuranceCostsAndRecoveriesNet	18655000	USD
CY2011Q4	pre	Allowance For Uncollectible Reinsurance Recoverable AllowanceForUncollectibleReinsuranceRecoverable	12500000	USD
CY2010Q4	pre	Allowance For Uncollectible Reinsurance Recoverable AllowanceForUncollectibleReinsuranceRecoverable	6900000	USD
CY2011	pre	Total Shares Authorized TotalSharesAuthorized	200000000	shares
CY2010	pre	Total Shares Authorized TotalSharesAuthorized	200000000	shares
CY2010	pre	Par Value Per Share ParValuePerShare	1
CY2011	pre	Par Value Per Share ParValuePerShare	1
CY2011	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2010	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1394800	shares
CY2009	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1104400	shares
CY2011	pre	Weighted Average Number Of Potentially Dilutive Common Shares And Common Share Equivalents Outstanding WeightedAverageNumberOfPotentiallyDilutiveCommonSharesAndCommonShareEquivalentsOutstanding	687300	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2854400	shares
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	489700	shares
CY2009	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	387000	shares
CY2009	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4300000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	154333000	USD
CY2010	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	64886000	USD
CY2009	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	91000000	USD
CY2009	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	170420000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-44892000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	51726000	USD
CY2011Q4	pre	Unrecognized Tax Expense Benefit UnrecognizedTaxExpenseBenefit	-40469000	USD
CY2010Q4	pre	Unrecognized Tax Expense Benefit UnrecognizedTaxExpenseBenefit	12172000	USD
CY2009Q4	pre	Unrecognized Tax Expense Benefit UnrecognizedTaxExpenseBenefit	670000	USD
CY2011	pre	Income Before Taxes IncomeBeforeTaxes	-451319000	USD
CY2010	pre	Income Before Taxes IncomeBeforeTaxes	981336000	USD
CY2009	pre	Income Before Taxes IncomeBeforeTaxes	1798944000	USD
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.142	pure
CY2009	pre	Effective Income Tax Rate Reconciliation At Expected Tax Rate EffectiveIncomeTaxRateReconciliationAtExpectedTaxRate	0.000	pure
CY2009	pre	Effective Income Tax Rate Reconciliation Impact Of Foreign Exchange Gains EffectiveIncomeTaxRateReconciliationImpactOfForeignExchangeGains	-0.004	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.000	pure
CY2009	pre	Effective Incometax Rate Reconciliation Tax Exempt Income And Non Deductible Expenses EffectiveIncometaxRateReconciliationTaxExemptIncomeAndNonDeductibleExpenses	-0.012	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.001	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.000	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.003	pure
CY2009	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.146	pure
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.153	pure
CY2011	pre	Effective Income Tax Rate Reconciliation At Expected Tax Rate EffectiveIncomeTaxRateReconciliationAtExpectedTaxRate	0.000	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.072	pure
CY2011	pre	Effective Income Tax Rate Reconciliation Impact Of Foreign Exchange Gains EffectiveIncomeTaxRateReconciliationImpactOfForeignExchangeGains	0.004	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.090	pure
CY2011	pre	Effective Incometax Rate Reconciliation Tax Exempt Income And Non Deductible Expenses EffectiveIncometaxRateReconciliationTaxExemptIncomeAndNonDeductibleExpenses	-0.116	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.000	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.019	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.017	pure
CY2010	pre	Effective Income Tax Rate Reconciliation At Expected Tax Rate EffectiveIncomeTaxRateReconciliationAtExpectedTaxRate	0.000	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.149	pure
CY2010	pre	Effective Income Tax Rate Reconciliation Impact Of Foreign Exchange Gains EffectiveIncomeTaxRateReconciliationImpactOfForeignExchangeGains	-0.034	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.012	pure
CY2011	pre	Unrecognized Tax Benefits Increase Decrease Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromPriorPeriodTaxPositions	3629000	USD
CY2011	pre	Unrecognized Tax Benefits Increase Decrease Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromCurrentPeriodTaxPositions	3788000	USD
CY2011	pre	Unrecognized Tax Benefits Decrease Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsDecreaseResultingFromLapseOfApplicableStatuteOfLimitations	-47886000	USD
CY2011	pre	Unrecognized Tax Benefits Changes In Foreign Currency Exchange Rates UnrecognizedTaxBenefitsChangesInForeignCurrencyExchangeRates	1230000	USD
CY2009Q4	pre	Total Unrecognized Tax Benefits TotalUnrecognizedTaxBenefits	42479000	USD
CY2010	pre	Effective Incometax Rate Reconciliation Tax Exempt Income And Non Deductible Expenses EffectiveIncometaxRateReconciliationTaxExemptIncomeAndNonDeductibleExpenses	-0.007	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.019	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.020	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.012	pure
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.131	pure
CY2011	pre	Effective Income Tax Rate Reconciliation Tax Credits Foreign Branch Tax EffectiveIncomeTaxRateReconciliationTaxCreditsForeignBranchTax	-0.057	pure
CY2010	pre	Effective Income Tax Rate Reconciliation Tax Credits Foreign Branch Tax EffectiveIncomeTaxRateReconciliationTaxCreditsForeignBranchTax	-0.002	pure
CY2009	pre	Effective Income Tax Rate Reconciliation Tax Credits Foreign Branch Tax EffectiveIncomeTaxRateReconciliationTaxCreditsForeignBranchTax	0.018	pure
CY2011Q4	pre	Deferred Tax Assets Discounting Of Loss Reserves And Adjustment To Life Policy Reserves DeferredTaxAssetsDiscountingOfLossReservesAndAdjustmentToLifePolicyReserves	84977000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	15005000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	31823000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve	19152000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	35040000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	29201000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	185997000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	156796000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Other Capitalized Costs DeferredTaxLiabilitiesDeferredExpenseOtherCapitalizedCosts	42913000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	71000000	USD
CY2011Q4	pre	Deferred Tax Liabilities Equalization Reserves DeferredTaxLiabilitiesEqualizationReserves	104884000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	105817000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	32397000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	357011000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-200215000	USD
CY2010Q4	pre	Deferred Tax Assets Discounting Of Loss Reserves And Adjustment To Life Policy Reserves DeferredTaxAssetsDiscountingOfLossReservesAndAdjustmentToLifePolicyReserves	62591000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	17845000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	4723000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve	20191000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	9319000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	114669000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	19642000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	95027000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Other Capitalized Costs DeferredTaxLiabilitiesDeferredExpenseOtherCapitalizedCosts	47152000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	73174000	USD
CY2010Q4	pre	Deferred Tax Liabilities Equalization Reserves DeferredTaxLiabilitiesEqualizationReserves	113293000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	82226000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	32877000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	348722000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-253695000	USD
CY2010Q4	pre	Total Net Tax Assets Liabilities TotalNetTaxAssetsLiabilities	-301365000	USD
CY2010	pre	Unrecognized Tax Benefits Increase Decrease Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromPriorPeriodTaxPositions	13319000	USD
CY2010	pre	Unrecognized Tax Benefits Increase Decrease Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromCurrentPeriodTaxPositions	2578000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	68.59
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	56.19
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	65.05
CY2011Q4	pre	Options Outstanding Weighted Average Exercise Price OptionsOutstandingWeightedAverageExercisePrice	62.89
CY2010Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	3859000	USD
CY2010Q4	pre	Total Unrecognized Tax Benefits TotalUnrecognizedTaxBenefits	51529000	USD
CY2011Q4	pre	Total Net Tax Assets Liabilities TotalNetTaxAssetsLiabilities	-230579000	USD
CY2011Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	-18074000	USD
CY2011Q4	pre	Total Unrecognized Tax Benefits TotalUnrecognizedTaxBenefits	12290000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	62.84
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	62.89
CY2011	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	194201	shares
CY2010Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0	USD
CY2009Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	4600000	USD
CY2011	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	10600000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	7.43
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	-1900	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1863156	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1856435	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	1862867	shares
CY2010Q4	pre	Options Outstanding Weighted Average Exercise Price OptionsOutstandingWeightedAverageExercisePrice	61.86
CY2010	pre	Unrecognized Tax Benefits Decrease Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsDecreaseResultingFromLapseOfApplicableStatuteOfLimitations	-3725000	USD
CY2010	pre	Unrecognized Tax Benefits Changes In Foreign Currency Exchange Rates UnrecognizedTaxBenefitsChangesInForeignCurrencyExchangeRates	-3122000	USD
CY2008Q4	pre	Total Unrecognized Tax Benefits TotalUnrecognizedTaxBenefits	39767000	USD
CY2009	pre	Unrecognized Tax Benefits Increase Decrease Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromPriorPeriodTaxPositions	2400000	USD
CY2009	pre	Unrecognized Tax Benefits Increase Decrease Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromCurrentPeriodTaxPositions	21000	USD
CY2009	pre	Unrecognized Tax Benefits Decrease Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsDecreaseResultingFromLapseOfApplicableStatuteOfLimitations	-1790000	USD
CY2009	pre	Unrecognized Tax Benefits Changes In Foreign Currency Exchange Rates UnrecognizedTaxBenefitsChangesInForeignCurrencyExchangeRates	623000	USD
CY2009	pre	Unrecognized Tax Benefits Increase Resulting From Business Combination UnrecognizedTaxBenefitsIncreaseResultingFromBusinessCombination	1458000	USD
CY2011Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	1100000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	123162	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	91817	shares
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	598698	shares
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	7.95
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	10.29
CY2010	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	860154	shares
CY2009	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	250400	shares
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	5000000	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	21000000	USD
CY2010	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	37200000	USD
CY2009	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	12700000	USD
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1936095	shares
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	24200000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2400000	USD
CY2010	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3400000	USD
CY2009	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2700000	USD
CY2009	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	21700000	USD
CY2010	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	33500000	USD
CY2011Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1	3.6	pure
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	7400000	USD
CY2009	pre	Replacement Options Grants In Period Expected Life ReplacementOptionsGrantsInPeriodExpectedLife	3	pure
CY2009	pre	Expected Life Of All Other Share Awards ExpectedLifeOfAllOtherShareAwards	6	pure
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	3100000	USD
CY2010	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	5900000	USD
CY2009	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	1600000	USD
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	16000000	USD
CY2010	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	14800000	USD
CY2009	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	13000000	USD
CY2011Q4	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1400000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	-17600000	USD
CY2011Q4	us-gaap	Dividends Preferred Stock DividendsPreferredStock	15400000	USD
CY2011Q3	us-gaap	Premiums Written Net PremiumsWrittenNet	1079600000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	34737000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	28603000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	23594000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	18827000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	18776000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	23818000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	148355000	USD
CY2011	us-gaap	Financing Receivable Significant Purchases FinancingReceivableSignificantPurchases	84500000	USD
CY2011	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	0	USD
CY2011Q4	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	8200000	USD
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	37000000	USD
CY2011Q4	pre	Significant Purchases Commitments Remaining Minimum Amount Committed SignificantPurchasesCommitmentsRemainingMinimumAmountCommitted	16100000	USD
CY2010Q4	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	12600000	USD
CY2010	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	36100000	USD
CY2010	pre	Cost Of Termination Agreements CostOfTerminationAgreements	40700000	USD
CY2009	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	30900000	USD
CY2011Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	1440000000	USD
CY2011	pre	Underwriting Result UnderwritingResult	-1090000000	USD
CY2011	pre	Losses And Loss Expenses And Life Policy Benefits Segment Disclosure LossesAndLossExpensesAndLifePolicyBenefitsSegmentDisclosure	4373000000	USD
CY2011	us-gaap	Gross Profit GrossProfit	-663000000	USD
CY2010	pre	Losses And Loss Expenses And Life Policy Benefits Segment Disclosure LossesAndLossExpensesAndLifePolicyBenefitsSegmentDisclosure	3284000000	USD
CY2010	us-gaap	Gross Profit GrossProfit	520000000	USD
CY2010	pre	Underwriting Result UnderwritingResult	-10000000	USD
CY2009	pre	Losses And Loss Expenses And Life Policy Benefits Segment Disclosure LossesAndLossExpensesAndLifePolicyBenefitsSegmentDisclosure	2296000000	USD
CY2009	us-gaap	Gross Profit GrossProfit	939000000	USD
CY2009	pre	Underwriting Result UnderwritingResult	530000000	USD
CY2011Q4	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	1427500000	USD
CY2011Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-12900000	USD
CY2011Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3300000	USD
CY2011	pre	Percentage Distribution Of Net Premiums Written PercentageDistributionOfNetPremiumsWritten	1	pure
CY2010	pre	Percentage Distribution Of Net Premiums Written PercentageDistributionOfNetPremiumsWritten	1	pure
CY2009	pre	Percentage Distribution Of Net Premiums Written PercentageDistributionOfNetPremiumsWritten	1	pure
CY2011	pre	Percentage Distribution Of Gross Premiums Written PercentageDistributionOfGrossPremiumsWritten	1	pure
CY2010	pre	Percentage Distribution Of Gross Premiums Written PercentageDistributionOfGrossPremiumsWritten	1	pure
CY2009	pre	Percentage Distribution Of Gross Premiums Written PercentageDistributionOfGrossPremiumsWritten	1	pure
CY2011	pre	Cedant Percentage Of Gross Written Premium CedantPercentageOfGrossWrittenPremium	0.05	pure
CY2010	pre	Cedant Percentage Of Gross Written Premium CedantPercentageOfGrossWrittenPremium	0.05	pure
CY2009	pre	Cedant Percentage Of Gross Written Premium CedantPercentageOfGrossWrittenPremium	0.06	pure
CY2011Q4	us-gaap	Interest Expense InterestExpense	12300000	USD
CY2011Q4	us-gaap	Other Income OtherIncome	3100000	USD
CY2011Q4	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	238800000	USD
CY2011Q4	us-gaap	Premiums Earned Net PremiumsEarnedNet	1181400000	USD
CY2011Q4	us-gaap	Investment Income Net InvestmentIncomeNet	155500000	USD
CY2011Q4	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1069200000	USD
CY2011Q4	us-gaap	Premiums Written Net PremiumsWrittenNet	879900000	USD
CY2011Q4	us-gaap	Other Expenses OtherExpenses	113000000	USD
CY2011Q4	us-gaap	Revenues Revenues	1414600000	USD
CY2011Q4	us-gaap	Gain Loss On Investments GainLossOnInvestments	74600000	USD
CY2011Q4	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8900000	USD
CY2011Q4	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	14700000	USD
CY2011Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	1294300000	USD
CY2011Q3	us-gaap	Investment Income Net InvestmentIncomeNet	163700000	USD
CY2011Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	26100000	USD
CY2011Q3	us-gaap	Other Income OtherIncome	1400000	USD
CY2011Q3	us-gaap	Other Expenses OtherExpenses	103800000	USD
CY2011Q3	us-gaap	Interest Expense InterestExpense	12200000	USD
CY2011Q3	us-gaap	Revenues Revenues	1485500000	USD
CY2011Q3	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	881700000	USD
CY2011Q3	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	262500000	USD
CY2011Q2	us-gaap	Investment Income Net InvestmentIncomeNet	158300000	USD
CY2011Q2	us-gaap	Interest Expense InterestExpense	12200000	USD
CY2011Q2	us-gaap	Other Expenses OtherExpenses	113700000	USD
CY2011Q2	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	229200000	USD
CY2011Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	814500000	USD
CY2011Q2	us-gaap	Revenues Revenues	1345600000	USD
CY2011Q2	us-gaap	Other Income OtherIncome	1600000	USD
CY2011Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	78200000	USD
CY2011Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9500000	USD
CY2011Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	10600000	USD
CY2011Q3	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	1259100000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	226400000	USD
CY2011Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41800000	USD
CY2011Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-4500000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	180100000	USD
CY2011Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	14400000	USD
CY2011Q2	us-gaap	Dividends Preferred Stock DividendsPreferredStock	8600000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	124200000	USD
CY2011Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1200000	USD
CY2011Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	50100000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	175500000	USD
CY2011Q2	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	1170100000	USD
CY2011Q2	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	8700000	USD
CY2011Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9200000	USD
CY2011Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	1107500000	USD
CY2011Q2	us-gaap	Premiums Written Net PremiumsWrittenNet	1056500000	USD
CY2011Q1	us-gaap	Premiums Written Net PremiumsWrittenNet	1470400000	USD
CY2011Q1	us-gaap	Premiums Earned Net PremiumsEarnedNet	1064600000	USD
CY2011Q1	us-gaap	Investment Income Net InvestmentIncomeNet	151600000	USD
CY2011Q1	us-gaap	Gain Loss On Investments GainLossOnInvestments	-112200000	USD
CY2011Q1	us-gaap	Other Income OtherIncome	1800000	USD
CY2011Q1	us-gaap	Revenues Revenues	1105800000	USD
CY2011Q1	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1607200000	USD
CY2011Q1	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	207900000	USD
CY2011Q1	us-gaap	Other Expenses OtherExpenses	104300000	USD
CY2011Q1	us-gaap	Interest Expense InterestExpense	12300000	USD
CY2011Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8800000	USD
CY2011Q1	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	700000	USD
CY2011Q1	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	1939800000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-834000000	USD
CY2011Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-26300000	USD
CY2011Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	700000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	-807000000	USD
CY2011Q1	us-gaap	Dividends Preferred Stock DividendsPreferredStock	8600000	USD
CY2010Q4	us-gaap	Premiums Written Net PremiumsWrittenNet	820600000	USD
CY2010Q4	us-gaap	Premiums Earned Net PremiumsEarnedNet	1204600000	USD
CY2010Q4	us-gaap	Investment Income Net InvestmentIncomeNet	160800000	USD
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CY2010Q3	us-gaap	Investment Income Net InvestmentIncomeNet	164400000	USD
CY2010Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	293200000	USD
CY2010Q3	us-gaap	Other Income OtherIncome	3300000	USD
CY2010Q4	us-gaap	Gain Loss On Investments GainLossOnInvestments	-83200000	USD
CY2010Q4	us-gaap	Other Income OtherIncome	5100000	USD
CY2010Q4	us-gaap	Revenues Revenues	1287300000	USD
CY2010Q4	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	817800000	USD
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CY2010Q3	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	748900000	USD
CY2010Q3	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	261600000	USD
CY2010Q3	us-gaap	Other Expenses OtherExpenses	118200000	USD
CY2010Q3	us-gaap	Interest Expense InterestExpense	12300000	USD
CY2010Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10000000	USD
CY2010Q4	us-gaap	Interest Expense InterestExpense	12200000	USD
CY2010Q4	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8800000	USD
CY2010Q4	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-8300000	USD
CY2010Q4	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	1226900000	USD
CY2010Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	60400000	USD
CY2010Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10900000	USD
CY2010Q4	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	7500000	USD
CY2010Q4	us-gaap	Net Income Loss NetIncomeLoss	57000000	USD
CY2010Q4	us-gaap	Dividends Preferred Stock DividendsPreferredStock	8600000	USD
CY2010Q3	us-gaap	Premiums Written Net PremiumsWrittenNet	987600000	USD
CY2010Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-27100000	USD
CY2010Q3	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	1178100000	USD
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CY2010Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	72600000	USD
CY2010Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1300000	USD
CY2010Q3	us-gaap	Net Income Loss NetIncomeLoss	524900000	USD
CY2010Q2	us-gaap	Premiums Written Net PremiumsWrittenNet	1112700000	USD
CY2010Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	1104600000	USD
CY2010Q2	us-gaap	Investment Income Net InvestmentIncomeNet	174500000	USD
CY2010Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	46000000	USD
CY2010Q2	us-gaap	Other Income OtherIncome	800000	USD
CY2010Q2	us-gaap	Revenues Revenues	1325900000	USD
CY2010Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	704600000	USD
CY2010Q2	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	244100000	USD
CY2010Q2	us-gaap	Other Expenses OtherExpenses	160200000	USD
CY2010Q2	us-gaap	Interest Expense InterestExpense	12800000	USD
CY2010Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7800000	USD
CY2010Q2	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	11000000	USD
CY2010Q2	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	1118500000	USD
CY2010Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.55
CY2010Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.86
CY2010Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.76
CY2010Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.50
CY2010Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	207400000	USD
CY2010Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17800000	USD
CY2010Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1300000	USD
CY2010Q2	us-gaap	Net Income Loss NetIncomeLoss	190900000	USD
CY2010Q2	us-gaap	Dividends Preferred Stock DividendsPreferredStock	8600000	USD
CY2010Q1	us-gaap	Premiums Written Net PremiumsWrittenNet	1784200000	USD
CY2010Q1	us-gaap	Premiums Earned Net PremiumsEarnedNet	1153800000	USD
CY2010Q1	us-gaap	Investment Income Net InvestmentIncomeNet	173100000	USD
CY2010Q1	us-gaap	Gain Loss On Investments GainLossOnInvestments	145500000	USD
CY2010Q1	us-gaap	Other Income OtherIncome	1300000	USD
CY2010Q1	us-gaap	Revenues Revenues	1473700000	USD
CY2010Q1	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1012400000	USD
CY2010Q1	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	220100000	USD
CY2010Q1	us-gaap	Other Expenses OtherExpenses	128100000	USD
CY2010Q1	us-gaap	Interest Expense InterestExpense	7100000	USD
CY2010Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4800000	USD
CY2010Q1	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	3600000	USD
CY2010Q1	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	1368900000	USD
CY2010Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	104800000	USD
CY2010Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	27600000	USD
CY2010Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2400000	USD
CY2010Q1	us-gaap	Net Income Loss NetIncomeLoss	79600000	USD
CY2010Q1	us-gaap	Dividends Preferred Stock DividendsPreferredStock	8600000	USD
CY2010Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	8600000	USD
CY2011Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-33000000	USD
CY2011Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	165700000	USD
CY2011Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	115600000	USD
CY2011Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-815600000	USD
CY2010Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	48400000	USD
CY2010Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	516300000	USD
CY2010Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	182300000	USD
CY2010Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	71000000	USD
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.49
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.49
CY2011Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.60
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CY2011Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.60
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CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.69
CY2011Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.60
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CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-11.99
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-11.99
CY2010Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.66
CY2010Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2010Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.85
CY2011	us-gaap	Supplementary Insurance Information Other Operating Expense SupplementaryInsuranceInformationOtherOperatingExpense	434846000	USD
CY2011	us-gaap	Supplementary Insurance Information Premiums Written SupplementaryInsuranceInformationPremiumsWritten	3700575000	USD
CY2010Q4	us-gaap	Supplementary Insurance Information Deferred Policy Acquisition Costs SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts	595557000	USD
CY2010Q4	us-gaap	Supplementary Insurance Information Liability For Future Policy Benefits Losses Claims And Loss Expense Reserves SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves	10666604000	USD
CY2010Q4	us-gaap	Supplementary Insurance Information Unearned Premiums SupplementaryInsuranceInformationUnearnedPremiums	1599139000	USD
CY2010Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.50
CY2011Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Fair Value SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesFairValue	15019603000	USD
CY2011Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Carrying Amount SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCarryingAmount	15019603000	USD
CY2010Q4	us-gaap	Supplementary Insurance Information Other Policy Claims And Benefits Payable SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable	1750410000	USD
CY2010	us-gaap	Supplementary Insurance Information Premium Revenue SupplementaryInsuranceInformationPremiumRevenue	4776471000	USD
CY2010	us-gaap	Supplementary Insurance Information Net Investment Income SupplementaryInsuranceInformationNetInvestmentIncome	672782000	USD
CY2010	us-gaap	Supplementary Insurance Information Benefits Claims Losses And Settlement Expense SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense	3283618000	USD
CY2010	us-gaap	Supplementary Insurance Information Amortization Of Deferred Policy Acquisition Costs SupplementaryInsuranceInformationAmortizationOfDeferredPolicyAcquisitionCosts	972537000	USD
CY2010Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.36
CY2010Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.31
CY2010Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.50
CY2010Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.87
CY2011Q4	us-gaap	Supplementary Insurance Information Deferred Policy Acquisition Costs SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts	547202000	USD
CY2011Q4	us-gaap	Supplementary Insurance Information Liability For Future Policy Benefits Losses Claims And Loss Expense Reserves SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves	11273091000	USD
CY2011Q4	us-gaap	Supplementary Insurance Information Unearned Premiums SupplementaryInsuranceInformationUnearnedPremiums	1448841000	USD
CY2011Q4	us-gaap	Supplementary Insurance Information Other Policy Claims And Benefits Payable SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable	1645662000	USD
CY2011	us-gaap	Supplementary Insurance Information Premium Revenue SupplementaryInsuranceInformationPremiumRevenue	4647754000	USD
CY2011	us-gaap	Supplementary Insurance Information Net Investment Income SupplementaryInsuranceInformationNetInvestmentIncome	629148000	USD
CY2011	us-gaap	Supplementary Insurance Information Benefits Claims Losses And Settlement Expense SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense	4372570000	USD
CY2011	us-gaap	Supplementary Insurance Information Amortization Of Deferred Policy Acquisition Costs SupplementaryInsuranceInformationAmortizationOfDeferredPolicyAcquisitionCosts	938361000	USD
CY2010	us-gaap	Supplementary Insurance Information Other Operating Expense SupplementaryInsuranceInformationOtherOperatingExpense	539751000	USD
CY2010	us-gaap	Supplementary Insurance Information Premiums Written SupplementaryInsuranceInformationPremiumsWritten	3962677000	USD
CY2009Q4	us-gaap	Supplementary Insurance Information Deferred Policy Acquisition Costs SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts	614857000	USD
CY2009Q4	us-gaap	Supplementary Insurance Information Liability For Future Policy Benefits Losses Claims And Loss Expense Reserves SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves	10811483000	USD
CY2009Q4	us-gaap	Supplementary Insurance Information Unearned Premiums SupplementaryInsuranceInformationUnearnedPremiums	1706816000	USD
CY2009Q4	us-gaap	Supplementary Insurance Information Other Policy Claims And Benefits Payable SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable	1615193000	USD
CY2009	us-gaap	Supplementary Insurance Information Premium Revenue SupplementaryInsuranceInformationPremiumRevenue	4119825000	USD
CY2009	us-gaap	Supplementary Insurance Information Net Investment Income SupplementaryInsuranceInformationNetInvestmentIncome	596071000	USD
CY2009	us-gaap	Supplementary Insurance Information Benefits Claims Losses And Settlement Expense SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense	2295296000	USD
CY2009	us-gaap	Supplementary Insurance Information Amortization Of Deferred Policy Acquisition Costs SupplementaryInsuranceInformationAmortizationOfDeferredPolicyAcquisitionCosts	885214000	USD
CY2009	us-gaap	Supplementary Insurance Information Other Operating Expense SupplementaryInsuranceInformationOtherOperatingExpense	430808000	USD
CY2009	us-gaap	Supplementary Insurance Information Premiums Written SupplementaryInsuranceInformationPremiumsWritten	3357820000	USD
CY2011	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Amount Ceded To Other Companies ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAmountCededToOtherCompanies	141539000	USD
CY2011	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Amount Assumed From Other Companies ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAmountAssumedFromOtherCompanies	4715726000	USD
CY2011	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Net Amount ReinsurancePremiumsForInsuranceCompaniesByProductSegmentNetAmount	4647754000	USD
CY2011	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Gross Amount ReinsurancePremiumsForInsuranceCompaniesByProductSegmentGrossAmount	73567000	USD
CY2011	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Percentage Of Amount Assumed To Net ReinsurancePremiumsForInsuranceCompaniesByProductSegmentPercentageOfAmountAssumedToNet	1.01	pure
CY2010	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Gross Amount ReinsurancePremiumsForInsuranceCompaniesByProductSegmentGrossAmount	25532000	USD
CY2010	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Amount Ceded To Other Companies ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAmountCededToOtherCompanies	180426000	USD
CY2010	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Amount Assumed From Other Companies ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAmountAssumedFromOtherCompanies	4931365000	USD
CY2010	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Net Amount ReinsurancePremiumsForInsuranceCompaniesByProductSegmentNetAmount	4776471000	USD
CY2010	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Percentage Of Amount Assumed To Net ReinsurancePremiumsForInsuranceCompaniesByProductSegmentPercentageOfAmountAssumedToNet	1.03	pure
CY2009	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Gross Amount ReinsurancePremiumsForInsuranceCompaniesByProductSegmentGrossAmount	8390000	USD
CY2009	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Amount Ceded To Other Companies ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAmountCededToOtherCompanies	82554000	USD
CY2009	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Amount Assumed From Other Companies ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAmountAssumedFromOtherCompanies	4193989000	USD
CY2009	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Net Amount ReinsurancePremiumsForInsuranceCompaniesByProductSegmentNetAmount	4119825000	USD
CY2009	us-gaap	Reinsurance Premiums For Insurance Companies By Product Segment Percentage Of Amount Assumed To Net ReinsurancePremiumsForInsuranceCompaniesByProductSegmentPercentageOfAmountAssumedToNet	1.02	pure

Files In Submission

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2010 Q4 Form 10-K Financial Statement

#000119312512077514 Filed on February 24, 2012

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$PREJF PARTNERRE LTD Stock $prejf

2010 Q4 Form 10-K Financial Statement

#000119312512077514 Filed on February 24, 2012

Income Statement

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Files In Submission

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