$WRB
BERKLEY W R CORP Stock $wrb

$wrb Overview Financials Valuation SEC Filings Company Website

2015 Q4 Form 10-Q Financial Statement

#000001154415000076 Filed on November 09, 2015

Income Statement

Concept	2015 Q4	2015 Q3	2014 Q3
Revenue	$1.811B	$1.861B	$1.841B
YoY Change	1.49%	1.11%	12.64%
Cost Of Revenue		$926.4M	$887.1M
YoY Change		4.42%	11.13%
Gross Profit		$934.6M	$953.5M
YoY Change		-1.98%	14.07%
Gross Profit Margin		50.22%	51.8%
Selling, General & Admin	$34.10M	$29.90M	$23.30M
YoY Change	1.49%	28.33%	10.43%
% of Gross Profit		3.2%	2.44%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$19.70M	$23.10M	$12.60M
YoY Change	-22.44%	83.33%	-57.14%
% of Gross Profit		2.47%	1.32%
Operating Expenses	$1.620B	$1.606B	$1.532B
YoY Change	13.42%	4.85%	8.99%
Operating Profit		-$671.6M	-$578.4M
YoY Change		16.11%	1.52%
Interest Expense	-$35.40M	$31.64M	$32.93M
YoY Change	-0.56%	-3.91%	8.5%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$156.2M	$228.9M	$278.5M
YoY Change	-4.0%	-17.79%	40.47%
Income Tax	$46.30M	$76.18M	$89.66M
% Of Pretax Income	29.64%	33.28%	32.2%
Net Earnings	$109.7M	$152.6M	$188.5M
YoY Change	-0.87%	-19.06%	37.65%
Net Earnings / Revenue	6.06%	8.2%	10.24%
Basic Earnings Per Share	$0.89	$1.24	$1.48
Diluted Earnings Per Share	$0.85	$1.18	$1.42
COMMON SHARES
Basic Shares Outstanding	123.3M shares	123.2M shares	127.2M shares
Diluted Shares Outstanding		128.9M shares	133.0M shares

Balance Sheet

Concept	2015 Q4	2015 Q3	2014 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$763.6M	$879.9M	$1.342B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$383.0M	$402.0M
YoY Change	3.23%
LONG-TERM ASSETS
Property, Plant & Equipment	$348.2M	$336.8M	$333.9M
YoY Change	4.86%	0.86%	-0.77%
Goodwill	$153.3M	$153.3M	$103.3M
YoY Change	1.55%	48.33%	-8.69%
Intangibles
YoY Change
Long-Term Investments	$1.170B	$1.140B	$1.020B
YoY Change	-3.41%	11.77%	16.74%
Other Assets
YoY Change
Total Long-Term Assets	$21.35B	$21.34B
YoY Change	0.01%
TOTAL ASSETS
Total Short-Term Assets	$383.0M	$402.0M
Total Long-Term Assets	$21.35B	$21.34B
Total Assets	$21.73B	$21.74B	$22.10B
YoY Change	0.07%	-1.62%	7.67%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities			$96.00M
YoY Change
LONG-TERM LIABILITIES
Long-Term Debt	$2.185B	$2.179B	$2.462B
YoY Change	-11.03%	-11.49%	20.92%
Other Long-Term Liabilities	$875.0M	$854.0M	$1.098B
YoY Change	-9.42%	-22.22%	19.22%
Total Long-Term Liabilities	$3.060B	$3.033B	$3.560B
YoY Change	-10.58%	-14.8%	20.39%
TOTAL LIABILITIES
Total Short-Term Liabilities			$96.00M
Total Long-Term Liabilities	$3.060B	$3.033B	$3.560B
Total Liabilities	$17.10B	$17.12B	$17.35B
YoY Change	0.03%	-1.34%	7.6%
SHAREHOLDERS EQUITY
Retained Earnings	$6.178B	$6.083B	$5.762B
YoY Change	7.77%	5.57%	11.93%
Common Stock	$1.052B	$1.037B	$1.029B
YoY Change	1.34%	0.72%	2.06%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$2.564B	$2.565B	$2.356B
YoY Change	8.42%	8.84%	17.41%
Treasury Stock Shares	111.8M shares	107.5M shares	107.5M shares
Shareholders Equity	$4.600B	$4.583B	$4.709B
YoY Change
Total Liabilities & Shareholders Equity	$21.73B	$21.74B	$22.10B
YoY Change	0.07%	-1.62%	7.67%

Cashflow Statement

Concept	2015 Q4	2015 Q3	2014 Q3
OPERATING ACTIVITIES
Net Income	$109.7M	$152.6M	$188.5M
YoY Change	-0.87%	-19.06%	37.65%
Depreciation, Depletion And Amortization	$19.70M	$23.10M	$12.60M
YoY Change	-22.44%	83.33%	-57.14%
Cash From Operating Activities	$261.0M	$287.4M	$320.2M
YoY Change	63.13%	-10.24%	2.37%
INVESTING ACTIVITIES
Capital Expenditures	-$95.00M	-$82.90M	-$197.3M
YoY Change	-431.01%	-57.98%	394.49%
Acquisitions
YoY Change
Other Investing Activities	-$246.8M	-$23.50M	$19.80M
YoY Change	-60.07%	-218.69%	-44.23%
Cash From Investing Activities	-$341.9M	-$106.3M	-$177.5M
YoY Change	-41.99%	-40.11%	4027.91%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-7.800M	-28.80M	370.7M
YoY Change	-96.5%	-107.77%	-1165.23%
NET CHANGE
Cash From Operating Activities	261.0M	287.4M	320.2M
Cash From Investing Activities	-341.9M	-106.3M	-177.5M
Cash From Financing Activities	-7.800M	-28.80M	370.7M
Net Change In Cash	-88.70M	152.3M	513.4M
YoY Change	-86.4%	-70.34%	87.58%
FREE CASH FLOW
Cash From Operating Activities	$261.0M	$287.4M	$320.2M
Capital Expenditures	-$95.00M	-$82.90M	-$197.3M
Free Cash Flow	$356.0M	$370.3M	$517.5M
YoY Change	171.13%	-28.44%	46.73%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2015
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Period End Date DocumentPeriodEndDate	2015-09-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0000011544
CY2015Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	123285762	shares
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	BERKLEY W R CORP
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CY2014Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	121823000	USD
CY2015Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	119616000	USD
CY2014Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	278453000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	789492000	USD
CY2015Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	228920000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	575824000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	135232000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	50838000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	150502000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	50838000	USD
CY2014Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	89662000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	250840000	USD
CY2015Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	76184000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	181595000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	238030000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	96364000	USD
	us-gaap	Increase Decrease In Broker Dealer Related Receivables Payables Net IncreaseDecreaseInBrokerDealerRelatedReceivablesPayablesNet	-68411000	USD
	us-gaap	Increase Decrease In Broker Dealer Related Receivables Payables Net IncreaseDecreaseInBrokerDealerRelatedReceivablesPayablesNet	-43429000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-11092000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-80587000	USD
	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	44087000	USD
	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	40216000	USD
	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	277542000	USD
	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	362854000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-143645000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-147776000	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	125319000	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	99541000	USD
	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	-12967000	USD
	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	62272000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-1781000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	4157000	USD
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	345521000	USD
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	198534000	USD
CY2014Q3	us-gaap	Increase Decrease In Unearned Premiums Net IncreaseDecreaseInUnearnedPremiumsNet	-64578000	USD
	us-gaap	Increase Decrease In Unearned Premiums Net IncreaseDecreaseInUnearnedPremiumsNet	-298977000	USD
CY2015Q3	us-gaap	Increase Decrease In Unearned Premiums Net IncreaseDecreaseInUnearnedPremiumsNet	-39479000	USD
	us-gaap	Increase Decrease In Unearned Premiums Net IncreaseDecreaseInUnearnedPremiumsNet	-193752000	USD
CY2014Q3	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	26345000	USD
	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	81970000	USD
CY2015Q3	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	35192000	USD
	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	107652000	USD
CY2014Q3	us-gaap	Interest Expense InterestExpense	32929000	USD
	us-gaap	Interest Expense InterestExpense	93570000	USD
CY2015Q3	us-gaap	Interest Expense InterestExpense	31641000	USD
	us-gaap	Interest Expense InterestExpense	99210000	USD
	us-gaap	Interest Paid InterestPaid	108688000	USD
	us-gaap	Interest Paid InterestPaid	124632000	USD
CY2014Q3	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	180824000	USD
	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	494312000	USD
CY2015Q3	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	135968000	USD
	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	393186000	USD
CY2014Q3	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	1599000	USD
	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	7647000	USD
CY2015Q3	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	2754000	USD
	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	8150000	USD
CY2014Q4	us-gaap	Investments Investments	15591824000	USD
CY2015Q3	us-gaap	Investments Investments	15197775000	USD
CY2014Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	340060000	USD
CY2015Q3	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	340255000	USD
CY2014Q4	us-gaap	Liabilities Liabilities	17055105000	USD
CY2015Q3	us-gaap	Liabilities Liabilities	17121929000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	21679239000	USD
CY2015Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	21738566000	USD
CY2014Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	10369701000	USD
CY2015Q3	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	10661054000	USD
CY2014Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	322012000	USD
CY2014Q4	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	325219000	USD
CY2015Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	286273000	USD
CY2014Q4	us-gaap	Loans And Leases Receivable Other Allowance LoansAndLeasesReceivableOtherAllowance	3000000	USD
CY2015Q3	us-gaap	Loans And Leases Receivable Other Allowance LoansAndLeasesReceivableOtherAllowance	2000000	USD
CY2015Q3	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	289061000	USD
CY2014Q4	us-gaap	Marketable Securities Fixed Maturities MarketableSecuritiesFixedMaturities	12705160000	USD
CY2015Q3	us-gaap	Marketable Securities Fixed Maturities MarketableSecuritiesFixedMaturities	12368319000	USD
CY2014Q3	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	72258000	USD
	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	234180000	USD
CY2015Q3	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	66419000	USD
	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	113020000	USD
CY2014Q3	us-gaap	Marketable Securities Realized Gain Loss Other Than Temporary Impairments Amount MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount	0	USD
	us-gaap	Marketable Securities Realized Gain Loss Other Than Temporary Impairments Amount MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount	0	USD
CY2015Q3	us-gaap	Marketable Securities Realized Gain Loss Other Than Temporary Impairments Amount MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount	12515000	USD
	us-gaap	Marketable Securities Realized Gain Loss Other Than Temporary Impairments Amount MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount	12515000	USD
CY2014Q4	us-gaap	Minority Interest MinorityInterest	34189000	USD
CY2015Q3	us-gaap	Minority Interest MinorityInterest	33371000	USD
CY2014Q4	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	322012000	USD
CY2015Q3	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	286273000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	153008000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-547549000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-218861000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	171074000	USD
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CY2014Q3	us-gaap	Net Income Loss NetIncomeLoss	188539000	USD
	us-gaap	Net Income Loss NetIncomeLoss	538173000	USD
CY2015Q3	us-gaap	Net Income Loss NetIncomeLoss	152607000	USD
	us-gaap	Net Income Loss NetIncomeLoss	393949000	USD
CY2014Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	252000	USD
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CY2015Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	129000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	280000	USD
CY2014Q3	us-gaap	Net Investment Income NetInvestmentIncome	179225000	USD
	us-gaap	Net Investment Income NetInvestmentIncome	486665000	USD
CY2015Q3	us-gaap	Net Investment Income NetInvestmentIncome	133214000	USD
	us-gaap	Net Investment Income NetInvestmentIncome	385036000	USD
CY2014Q3	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	1562152000	USD
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	4555008000	USD
CY2015Q3	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	1632037000	USD
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	4819577000	USD
CY2015Q3	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	12259281	USD
CY2015Q3	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	6111665	USD
CY2015Q3	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	8177750	USD
CY2015Q3	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	11224190	USD
CY2015Q3	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	12210962	USD
CY2015Q3	us-gaap	Operating Leases Future Minimum Payments Receivable Remainder Of Fiscal Year OperatingLeasesFutureMinimumPaymentsReceivableRemainderOfFiscalYear	3119438	USD
CY2015Q3	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	330978082	USD
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CY2015Q3	us-gaap	Other Assets OtherAssets	434074000	USD
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CY2015Q3	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	0	USD
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	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	163651000	USD
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	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	108232000	USD
CY2015Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	4497000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-78832000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	12117000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-55419000	USD
CY2015Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	12228000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	56354000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-71301000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	142186000	USD
CY2015Q3	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-70266000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-211899000	USD
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	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-28590000	USD
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	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-76713000	USD
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	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-28590000	USD
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	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-76713000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2015Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-60272000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	84273000	USD
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	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-155545000	USD
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	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	7125000	USD
CY2015Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	0	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	0	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	2020000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	4631000	USD
CY2015Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	0	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-1088000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-2494000	USD
CY2015Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	0	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	0	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	11029000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-57913000	USD
CY2015Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	12228000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	56354000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-12912000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	108232000	USD
CY2015Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	4497000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-78832000	USD
CY2014Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	544303000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1593619000	USD
CY2015Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	573541000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1698169000	USD
CY2014Q3	us-gaap	Other Income OtherIncome	405000	USD
	us-gaap	Other Income OtherIncome	931000	USD
CY2015Q3	us-gaap	Other Income OtherIncome	30000	USD
	us-gaap	Other Income OtherIncome	335000	USD
CY2014Q4	us-gaap	Other Liabilities OtherLiabilities	859736000	USD
CY2015Q3	us-gaap	Other Liabilities OtherLiabilities	820278000	USD
CY2014Q3	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	0	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	0	USD
CY2015Q3	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	12515000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	12515000	USD
	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	-320000	USD
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	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	236703000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	223652000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	40782000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	43239000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	3098477000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	3387648000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	28606000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	37754000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	65423000	USD
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	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	30797000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	40262000	USD
	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	253007000	USD
	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	150940000	USD
CY2014Q3	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	887123000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	2576996000	USD
CY2015Q3	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	926355000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	2733298000	USD
CY2014Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.1
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CY2014Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2015Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2014Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2015Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2014Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2015Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2014Q4	us-gaap	Preferred Stock Value PreferredStockValue		USD
CY2015Q3	us-gaap	Preferred Stock Value PreferredStockValue		USD
CY2014Q4	us-gaap	Premiums And Other Receivables Net PremiumsAndOtherReceivablesNet	1651088000	USD
CY2015Q3	us-gaap	Premiums And Other Receivables Net PremiumsAndOtherReceivablesNet	1720637000	USD
CY2014Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	1460804000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	4242061000	USD
CY2015Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	1531558000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	4496612000	USD
CY2014Q3	us-gaap	Premiums Written Net PremiumsWrittenNet	1525382000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	4541038000	USD
CY2015Q3	us-gaap	Premiums Written Net PremiumsWrittenNet	1571037000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	4690364000	USD
CY2014Q4	us-gaap	Prepaid Reinsurance Premiums PrepaidReinsurancePremiums	395748000	USD
CY2015Q3	us-gaap	Prepaid Reinsurance Premiums PrepaidReinsurancePremiums	400392000	USD
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	15612000	USD
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	USD
	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	431409000	USD
	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	1891000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1887252000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	2727635000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	913000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3345000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	546970000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	765764000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	109928000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	23778000	USD
	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	285233000	USD
	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	198489000	USD
CY2014Q3	us-gaap	Profit Loss ProfitLoss	188791000	USD
	us-gaap	Profit Loss ProfitLoss	538652000	USD
CY2015Q3	us-gaap	Profit Loss ProfitLoss	152736000	USD
	us-gaap	Profit Loss ProfitLoss	394229000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	332098000	USD
CY2015Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	336825000	USD
	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	343723000	USD
	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	0	USD
CY2014Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	1609000	USD
CY2015Q3	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	7561000	USD
CY2014Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	731612000	USD
CY2015Q3	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	873909000	USD
CY2014Q4	us-gaap	Real Estate Investments RealEstateInvestments	731612000	USD
CY2015Q3	us-gaap	Real Estate Investments RealEstateInvestments	873909000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	234180000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	100505000	USD
CY2014Q4	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	371034000	USD
CY2015Q3	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	401941000	USD
CY2014Q3	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	128903000	USD
	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	319156000	USD
CY2015Q3	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	123765000	USD
	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	374084000	USD
CY2014Q4	us-gaap	Reinsurance Payable ReinsurancePayable	237270000	USD
CY2015Q3	us-gaap	Reinsurance Payable ReinsurancePayable	230008000	USD
CY2014Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	1503441000	USD
CY2015Q3	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	1559277000	USD
CY2014Q4	us-gaap	Reinsurance Recoverables Allowance ReinsuranceRecoverablesAllowance	1000000	USD
CY2015Q3	us-gaap	Reinsurance Recoverables Allowance ReinsuranceRecoverablesAllowance	1000000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1829000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	279204000	USD
CY2014Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	5732410000	USD
CY2015Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	6083120000	USD
CY2014Q3	us-gaap	Revenues Revenues	1840605000	USD
	us-gaap	Revenues Revenues	5344500000	USD
CY2015Q3	us-gaap	Revenues Revenues	1860957000	USD
	us-gaap	Revenues Revenues	5395401000	USD
CY2014Q3	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	3228000	USD
CY2015Q3	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	5991000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	21549000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	24052000	USD
	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	594000	USD
	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	623000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	4589945000	USD
CY2015Q3	us-gaap	Stockholders Equity StockholdersEquity	4583266000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4624134000	USD
CY2015Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4616637000	USD
CY2014Q4	us-gaap	Trading Liabilities TradingLiabilities	106079000	USD
CY2015Q3	us-gaap	Trading Liabilities TradingLiabilities	33360000	USD
CY2014Q4	us-gaap	Trading Securities TradingSecurities	450648000	USD
CY2015Q3	us-gaap	Trading Securities TradingSecurities	351179000	USD
CY2014Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	108369082	shares
CY2015Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	107504593	shares
CY2014Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2364551000	USD
CY2015Q3	us-gaap	Treasury Stock Value TreasuryStockValue	2564536000	USD
CY2014Q4	us-gaap	Unearned Premiums UnearnedPremiums	3026732000	USD
CY2015Q3	us-gaap	Unearned Premiums UnearnedPremiums	3198009000	USD
CY2014Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	133001000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	133886000	shares
CY2015Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	128947000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	130563000	shares
CY2014Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	127165000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	128225000	shares
CY2015Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	123163000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	124294000	shares
CY2014Q4	wrb	Available For Sale Equity Securities Gross Unrealized Gains AvailableForSaleEquitySecuritiesGrossUnrealizedGains	20314000	USD
CY2015Q3	wrb	Available For Sale Equity Securities Gross Unrealized Gains AvailableForSaleEquitySecuritiesGrossUnrealizedGains	20756000	USD
CY2014Q4	wrb	Available For Sale Equity Securities Gross Unrealized Losses AvailableForSaleEquitySecuritiesGrossUnrealizedLosses	9618000	USD
CY2015Q3	wrb	Available For Sale Equity Securities Gross Unrealized Losses AvailableForSaleEquitySecuritiesGrossUnrealizedLosses	26044000	USD
CY2014Q4	wrb	Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses Accumulated In Aoci AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI	69142000	USD
CY2015Q3	wrb	Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses Accumulated In Aoci AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI	103466000	USD
CY2014Q4	wrb	Available For Sale Securities Debt Securities Fair Value AvailableForSaleSecuritiesDebtSecuritiesFairValue	12603983000	USD
CY2015Q3	wrb	Available For Sale Securities Debt Securities Fair Value AvailableForSaleSecuritiesDebtSecuritiesFairValue	12267229000	USD
CY2014Q4	wrb	Available For Sale Securities Debt Securities Gross Unrealized Gain AvailableForSaleSecuritiesDebtSecuritiesGrossUnrealizedGain	541420000	USD
CY2015Q3	wrb	Available For Sale Securities Debt Securities Gross Unrealized Gain AvailableForSaleSecuritiesDebtSecuritiesGrossUnrealizedGain	457919000	USD
CY2014Q4	wrb	Available For Sale Securities Debt Securities Gross Unrealized Losses AvailableForSaleSecuritiesDebtSecuritiesGrossUnrealizedLosses	59524000	USD
CY2015Q3	wrb	Available For Sale Securities Debt Securities Gross Unrealized Losses AvailableForSaleSecuritiesDebtSecuritiesGrossUnrealizedLosses	77422000	USD
CY2014Q3	wrb	Availablefor Saleand Heldto Maturity Realized Gains Debt Securities Excluding Otherthan Temporary Impairmentsand Allowances AvailableforSaleandHeldtoMaturityRealizedGainsDebtSecuritiesExcludingOtherthanTemporaryImpairmentsandAllowances	13803000	USD
	wrb	Availablefor Saleand Heldto Maturity Realized Gains Debt Securities Excluding Otherthan Temporary Impairmentsand Allowances AvailableforSaleandHeldtoMaturityRealizedGainsDebtSecuritiesExcludingOtherthanTemporaryImpairmentsandAllowances	17263000	USD
CY2015Q3	wrb	Availablefor Saleand Heldto Maturity Realized Gains Debt Securities Excluding Otherthan Temporary Impairmentsand Allowances AvailableforSaleandHeldtoMaturityRealizedGainsDebtSecuritiesExcludingOtherthanTemporaryImpairmentsandAllowances	1341000	USD
	wrb	Availablefor Saleand Heldto Maturity Realized Gains Debt Securities Excluding Otherthan Temporary Impairmentsand Allowances AvailableforSaleandHeldtoMaturityRealizedGainsDebtSecuritiesExcludingOtherthanTemporaryImpairmentsandAllowances	8178000	USD
CY2014Q3	wrb	Availablefor Saleand Heldto Maturity Realized Losses Debt Securities Excluding Otherthan Temporary Impairmentsand Allowances AvailableforSaleandHeldtoMaturityRealizedLossesDebtSecuritiesExcludingOtherthanTemporaryImpairmentsandAllowances	2208000	USD
	wrb	Availablefor Saleand Heldto Maturity Realized Losses Debt Securities Excluding Otherthan Temporary Impairmentsand Allowances AvailableforSaleandHeldtoMaturityRealizedLossesDebtSecuritiesExcludingOtherthanTemporaryImpairmentsandAllowances	3727000	USD
CY2015Q3	wrb	Availablefor Saleand Heldto Maturity Realized Losses Debt Securities Excluding Otherthan Temporary Impairmentsand Allowances AvailableforSaleandHeldtoMaturityRealizedLossesDebtSecuritiesExcludingOtherthanTemporaryImpairmentsandAllowances	2171000	USD
	wrb	Availablefor Saleand Heldto Maturity Realized Losses Debt Securities Excluding Otherthan Temporary Impairmentsand Allowances AvailableforSaleandHeldtoMaturityRealizedLossesDebtSecuritiesExcludingOtherthanTemporaryImpairmentsandAllowances	2810000	USD
CY2014Q4	wrb	Availableforsale Securities Continuous Unrealized Loss Position12 Monthsor Longer Aggregate Losses Accumulated In Aoci AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsorLongerAggregateLossesAccumulatedInAOCI	48461000	USD
CY2015Q3	wrb	Availableforsale Securities Continuous Unrealized Loss Position12 Monthsor Longer Aggregate Losses Accumulated In Aoci AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsorLongerAggregateLossesAccumulatedInAOCI	33194000	USD
CY2014Q4	wrb	Availableforsale Securities Continuous Unrealized Loss Position Lessthan12 Months Aggregate Losses Accumulated In Aoci AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAggregateLossesAccumulatedInAOCI	20681000	USD
CY2015Q3	wrb	Availableforsale Securities Continuous Unrealized Loss Position Lessthan12 Months Aggregate Losses Accumulated In Aoci AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAggregateLossesAccumulatedInAOCI	70272000	USD
CY2014Q3	wrb	Availableforsale Securities Gross Realized Gain Loss Equity Securities Excluding Otherthan Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossEquitySecuritiesExcludingOtherthanTemporaryImpairments	9729000	USD
	wrb	Availableforsale Securities Gross Realized Gain Loss Equity Securities Excluding Otherthan Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossEquitySecuritiesExcludingOtherthanTemporaryImpairments	39310000	USD
CY2015Q3	wrb	Availableforsale Securities Gross Realized Gain Loss Equity Securities Excluding Otherthan Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossEquitySecuritiesExcludingOtherthanTemporaryImpairments	-21000	USD
	wrb	Availableforsale Securities Gross Realized Gain Loss Equity Securities Excluding Otherthan Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossEquitySecuritiesExcludingOtherthanTemporaryImpairments	9639000	USD
CY2014Q4	wrb	Buildingand Lease Obligations BuildingandLeaseObligations	196980000	USD
CY2015Q3	wrb	Buildingand Lease Obligations BuildingandLeaseObligations	226930000	USD
CY2014Q3	wrb	Changein Unrealized Gainlosson Investments Including Portion Attributableto Noncontrolling Interest ChangeinUnrealizedGainlossonInvestmentsIncludingPortionAttributabletoNoncontrollingInterest	82000	USD
	wrb	Changein Unrealized Gainlosson Investments Including Portion Attributableto Noncontrolling Interest ChangeinUnrealizedGainlossonInvestmentsIncludingPortionAttributabletoNoncontrollingInterest	119000	USD
CY2015Q3	wrb	Changein Unrealized Gainlosson Investments Including Portion Attributableto Noncontrolling Interest ChangeinUnrealizedGainlossonInvestmentsIncludingPortionAttributabletoNoncontrollingInterest	-94000	USD
	wrb	Changein Unrealized Gainlosson Investments Including Portion Attributableto Noncontrolling Interest ChangeinUnrealizedGainlossonInvestmentsIncludingPortionAttributabletoNoncontrollingInterest	-106000	USD
CY2014Q3	wrb	Changein Unrealized Gainlosson Investments Including Portion Attributableto Noncontrolling Interest Netof Tax ChangeinUnrealizedGainlossonInvestmentsIncludingPortionAttributabletoNoncontrollingInterestNetofTax	-12994000	USD
	wrb	Changein Unrealized Gainlosson Investments Including Portion Attributableto Noncontrolling Interest Netof Tax ChangeinUnrealizedGainlossonInvestmentsIncludingPortionAttributabletoNoncontrollingInterestNetofTax	108113000	USD
CY2015Q3	wrb	Changein Unrealized Gainlosson Investments Including Portion Attributableto Noncontrolling Interest Netof Tax ChangeinUnrealizedGainlossonInvestmentsIncludingPortionAttributabletoNoncontrollingInterestNetofTax	4593000	USD
	wrb	Changein Unrealized Gainlosson Investments Including Portion Attributableto Noncontrolling Interest Netof Tax ChangeinUnrealizedGainlossonInvestmentsIncludingPortionAttributabletoNoncontrollingInterestNetofTax	-78724000	USD
CY2014Q3	wrb	Changein Unrealized Gainlosson Investmentstax ChangeinUnrealizedGainlossonInvestmentstax	-12117000	USD
	wrb	Changein Unrealized Gainlosson Investmentstax ChangeinUnrealizedGainlossonInvestmentstax	55419000	USD
CY2015Q3	wrb	Changein Unrealized Gainlosson Investmentstax ChangeinUnrealizedGainlossonInvestmentstax	-12229000	USD
	wrb	Changein Unrealized Gainlosson Investmentstax ChangeinUnrealizedGainlossonInvestmentstax	-56354000	USD
CY2014Q3	wrb	Expenses From Wholly Owned Investees ExpensesFromWhollyOwnedInvestees	97797000	USD
	wrb	Expenses From Wholly Owned Investees ExpensesFromWhollyOwnedInvestees	290823000	USD
CY2015Q3	wrb	Expenses From Wholly Owned Investees ExpensesFromWhollyOwnedInvestees	100500000	USD
	wrb	Expenses From Wholly Owned Investees ExpensesFromWhollyOwnedInvestees	288900000	USD
CY2014Q3	wrb	Income Before Income Taxes IncomeBeforeIncomeTaxes	278453000	USD
	wrb	Income Before Income Taxes IncomeBeforeIncomeTaxes	789492000	USD
CY2015Q3	wrb	Income Before Income Taxes IncomeBeforeIncomeTaxes	228920000	USD
	wrb	Income Before Income Taxes IncomeBeforeIncomeTaxes	575824000	USD
CY2015Q3	wrb	Marketable Securities Debt Maturities Without Single Maturity Date Amortized Cost MarketableSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	1125931000	USD
CY2015Q3	wrb	Marketable Securities Debt Maturities Without Single Maturity Date Fair Value MarketableSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	1150286000	USD
CY2015Q3	wrb	Marketable Securities Fixed Maturities After Five Through Ten Years Amortized Cost MarketableSecuritiesFixedMaturitiesAfterFiveThroughTenYearsAmortizedCost	3572074000	USD
CY2015Q3	wrb	Marketable Securities Fixed Maturities After Five Through Ten Years Fair Value MarketableSecuritiesFixedMaturitiesAfterFiveThroughTenYearsFairValue	3706649000	USD
CY2015Q3	wrb	Marketable Securities Fixed Maturities After One Through Five Years Amortized Cost MarketableSecuritiesFixedMaturitiesAfterOneThroughFiveYearsAmortizedCost	3896880000	USD
CY2015Q3	wrb	Marketable Securities Fixed Maturities After One Through Five Years Fair Value MarketableSecuritiesFixedMaturitiesAfterOneThroughFiveYearsFairValue	4043852000	USD
CY2015Q3	wrb	Marketable Securities Fixed Maturities After Ten Years Amortized Cost MarketableSecuritiesFixedMaturitiesAfterTenYearsAmortizedCost	2520025000	USD
CY2015Q3	wrb	Marketable Securities Fixed Maturities After Ten Years Fair Value MarketableSecuritiesFixedMaturitiesAfterTenYearsFairValue	2601213000	USD
CY2014Q4	wrb	Marketable Securities Fixed Maturities Amortized Cost MarketableSecuritiesFixedMaturitiesAmortizedCost	12223264000	USD
CY2015Q3	wrb	Marketable Securities Fixed Maturities Amortized Cost MarketableSecuritiesFixedMaturitiesAmortizedCost	11987822000	USD
CY2014Q4	wrb	Marketable Securities Fixed Maturities Fair Value MarketableSecuritiesFixedMaturitiesFairValue	12725806000	USD
CY2015Q3	wrb	Marketable Securities Fixed Maturities Fair Value MarketableSecuritiesFixedMaturitiesFairValue	12386845000	USD
CY2014Q4	wrb	Marketable Securities Fixed Maturities Gross Unrealized Gains MarketableSecuritiesFixedMaturitiesGrossUnrealizedGains	562066000	USD
CY2015Q3	wrb	Marketable Securities Fixed Maturities Gross Unrealized Gains MarketableSecuritiesFixedMaturitiesGrossUnrealizedGains	476445000	USD
CY2014Q4	wrb	Marketable Securities Fixed Maturities Gross Unrealized Losses MarketableSecuritiesFixedMaturitiesGrossUnrealizedLosses	59524000	USD
CY2015Q3	wrb	Marketable Securities Fixed Maturities Gross Unrealized Losses MarketableSecuritiesFixedMaturitiesGrossUnrealizedLosses	77422000	USD
CY2015Q3	wrb	Marketable Securities Fixed Maturities Within One Year Amortized Cost MarketableSecuritiesFixedMaturitiesWithinOneYearAmortizedCost	872912000	USD
CY2015Q3	wrb	Marketable Securities Fixed Maturities Within One Year Fair Value MarketableSecuritiesFixedMaturitiesWithinOneYearFairValue	884845000	USD
CY2014Q3	wrb	Marketable Securities Realized Gain Loss Excluding Otherthan Temporary Impairments Netof Tax MarketableSecuritiesRealizedGainLossExcludingOtherthanTemporaryImpairmentsNetofTax	46968000	USD
	wrb	Marketable Securities Realized Gain Loss Excluding Otherthan Temporary Impairments Netof Tax MarketableSecuritiesRealizedGainLossExcludingOtherthanTemporaryImpairmentsNetofTax	152217000	USD
CY2015Q3	wrb	Marketable Securities Realized Gain Loss Excluding Otherthan Temporary Impairments Netof Tax MarketableSecuritiesRealizedGainLossExcludingOtherthanTemporaryImpairmentsNetofTax	35038000	USD
	wrb	Marketable Securities Realized Gain Loss Excluding Otherthan Temporary Impairments Netof Tax MarketableSecuritiesRealizedGainLossExcludingOtherthanTemporaryImpairmentsNetofTax	65328000	USD
CY2015Q3	wrb	Minimum Ownership Of Common Stockholders Equity MinimumOwnershipOfCommonStockholdersEquity	0.1
CY2014Q3	wrb	Other Revenues OtherRevenues	200576000	USD
	wrb	Other Revenues OtherRevenues	615774000	USD
CY2015Q3	wrb	Other Revenues OtherRevenues	196185000	USD
	wrb	Other Revenues OtherRevenues	513753000	USD
CY2014Q3	wrb	R Eal Estate Realized Gain Losson Disposal REalEstateRealizedGainLossonDisposal	15000	USD
	wrb	R Eal Estate Realized Gain Losson Disposal REalEstateRealizedGainLossonDisposal	85659000	USD
CY2015Q3	wrb	R Eal Estate Realized Gain Losson Disposal REalEstateRealizedGainLossonDisposal	0	USD
	wrb	R Eal Estate Realized Gain Losson Disposal REalEstateRealizedGainLossonDisposal	0	USD
CY2014Q3	wrb	Realized Gain Losson Investments Including Equity Method Investments Excluding Otherthan Temporary Impairmentsand Allowances RealizedGainLossonInvestmentsIncludingEquityMethodInvestmentsExcludingOtherthanTemporaryImpairmentsandAllowances	72258000	USD
	wrb	Realized Gain Losson Investments Including Equity Method Investments Excluding Otherthan Temporary Impairmentsand Allowances RealizedGainLossonInvestmentsIncludingEquityMethodInvestmentsExcludingOtherthanTemporaryImpairmentsandAllowances	234180000	USD
CY2015Q3	wrb	Realized Gain Losson Investments Including Equity Method Investments Excluding Otherthan Temporary Impairmentsand Allowances RealizedGainLossonInvestmentsIncludingEquityMethodInvestmentsExcludingOtherthanTemporaryImpairmentsandAllowances	66419000	USD
	wrb	Realized Gain Losson Investments Including Equity Method Investments Excluding Otherthan Temporary Impairmentsand Allowances RealizedGainLossonInvestmentsIncludingEquityMethodInvestmentsExcludingOtherthanTemporaryImpairmentsandAllowances	113020000	USD
CY2014Q3	wrb	Realized Gain Losson Marketable Securities Equity Method Investmentsand Other Investments Before Tax RealizedGainLossonMarketableSecuritiesEquityMethodInvestmentsandOtherInvestmentsBeforeTax	72258000	USD
	wrb	Realized Gain Losson Marketable Securities Equity Method Investmentsand Other Investments Before Tax RealizedGainLossonMarketableSecuritiesEquityMethodInvestmentsandOtherInvestmentsBeforeTax	234180000	USD
CY2015Q3	wrb	Realized Gain Losson Marketable Securities Equity Method Investmentsand Other Investments Before Tax RealizedGainLossonMarketableSecuritiesEquityMethodInvestmentsandOtherInvestmentsBeforeTax	53904000	USD
	wrb	Realized Gain Losson Marketable Securities Equity Method Investmentsand Other Investments Before Tax RealizedGainLossonMarketableSecuritiesEquityMethodInvestmentsandOtherInvestmentsBeforeTax	100505000	USD
CY2014Q3	wrb	Realized Gain Losson Marketable Securities Equity Method Investmentsand Other Investments Netof Tax RealizedGainLossonMarketableSecuritiesEquityMethodInvestmentsandOtherInvestmentsNetofTax	46968000	USD
	wrb	Realized Gain Losson Marketable Securities Equity Method Investmentsand Other Investments Netof Tax RealizedGainLossonMarketableSecuritiesEquityMethodInvestmentsandOtherInvestmentsNetofTax	152217000	USD
CY2015Q3	wrb	Realized Gain Losson Marketable Securities Equity Method Investmentsand Other Investments Netof Tax RealizedGainLossonMarketableSecuritiesEquityMethodInvestmentsandOtherInvestmentsNetofTax	35038000	USD
	wrb	Realized Gain Losson Marketable Securities Equity Method Investmentsand Other Investments Netof Tax RealizedGainLossonMarketableSecuritiesEquityMethodInvestmentsandOtherInvestmentsNetofTax	65328000	USD
CY2014Q3	wrb	Realized Gain Losson Marketable Securities Equity Method Investmentsand Other Investments Tax RealizedGainLossonMarketableSecuritiesEquityMethodInvestmentsandOtherInvestmentsTax	25290000	USD
	wrb	Realized Gain Losson Marketable Securities Equity Method Investmentsand Other Investments Tax RealizedGainLossonMarketableSecuritiesEquityMethodInvestmentsandOtherInvestmentsTax	81963000	USD
CY2015Q3	wrb	Realized Gain Losson Marketable Securities Equity Method Investmentsand Other Investments Tax RealizedGainLossonMarketableSecuritiesEquityMethodInvestmentsandOtherInvestmentsTax	18866000	USD
	wrb	Realized Gain Losson Marketable Securities Equity Method Investmentsand Other Investments Tax RealizedGainLossonMarketableSecuritiesEquityMethodInvestmentsandOtherInvestmentsTax	35177000	USD
CY2014Q3	wrb	Revenues From Wholly Owned Investees RevenuesFromWhollyOwnedInvestees	101568000	USD
	wrb	Revenues From Wholly Owned Investees RevenuesFromWhollyOwnedInvestees	298693000	USD
CY2015Q3	wrb	Revenues From Wholly Owned Investees RevenuesFromWhollyOwnedInvestees	107059000	USD
	wrb	Revenues From Wholly Owned Investees RevenuesFromWhollyOwnedInvestees	305261000	USD
CY2014Q4	wrb	Senior Notes And Other Debt SeniorNotesAndOtherDebt	2115527000	USD
CY2015Q3	wrb	Senior Notes And Other Debt SeniorNotesAndOtherDebt	1838965000	USD

Files In Submission

Name	View Source	Status
0000011544-15-000076-index-headers.html	Edgar Link	pending
0000011544-15-000076-index.html	Edgar Link	pending
0000011544-15-000076.txt	Edgar Link	pending
0000011544-15-000076-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending
wrb-20150630.xml	Edgar Link	completed
wrb-20150630.xsd	Edgar Link	pending
wrb-20150630_cal.xml	Edgar Link	unprocessable
wrb-20150630_def.xml	Edgar Link	unprocessable
wrb-20150630_lab.xml	Edgar Link	unprocessable
wrb-20150630_pre.xml	Edgar Link	unprocessable
wrb930201510q.htm	Edgar Link	pending
wrb9302015ex101.htm	Edgar Link	pending
wrb9302015ex311.htm	Edgar Link	pending
wrb9302015ex312.htm	Edgar Link	pending
wrb9302015ex321.htm	Edgar Link	pending

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$WRB
BERKLEY W R CORP Stock $wrb

2015 Q4 Form 10-Q Financial Statement

#000001154415000076 Filed on November 09, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WRB BERKLEY W R CORP Stock $wrb

2015 Q4 Form 10-Q Financial Statement

#000001154415000076 Filed on November 09, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WRB
BERKLEY W R CORP Stock $wrb