$sigi 2012 Q2 10-Q

Concept	2012 Q2	2011 Q2
Revenue	$428.9M	$399.6M
YoY Change	7.34%	1.44%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$9.900M	$8.300M
YoY Change	19.28%	23.88%
% of Gross Profit
Operating Expenses	$424.9M	$395.1M
YoY Change	7.54%	9.69%
Operating Profit
YoY Change
Interest Expense	-$4.700M	-$4.600M
YoY Change	2.17%	-2.13%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	-$692.0K	-$99.00K
YoY Change	598.99%	-100.43%
Income Tax	-$980.0K	-$1.566M
% Of Pretax Income
Net Earnings	$288.0K	$1.467M
YoY Change	-80.37%	-92.2%
Net Earnings / Revenue	0.07%	0.37%
Basic Earnings Per Share	$0.01	$0.03
Diluted Earnings Per Share	$0.01	$0.03
COMMON SHARES
Basic Shares Outstanding	54.95M shares
Diluted Shares Outstanding

Concept	2012 Q2	2011 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents
Short-Term Investments
Other Short-Term Assets	$136.8M	$115.9M
YoY Change	18.03%	11.02%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$172.9M	$152.5M
YoY Change	13.38%	9.48%
LONG-TERM ASSETS
Property, Plant & Equipment	$45.69M	$40.00M
YoY Change	14.22%	-6.98%
Goodwill	$7.849M
YoY Change
Intangibles
YoY Change
Long-Term Investments	$4.176B	$4.007B
YoY Change	4.21%	3.0%
Other Assets	$113.9M	$87.90M
YoY Change	29.58%	-13.06%
Total Long-Term Assets	$5.515B	$5.217B
YoY Change	5.7%	2.55%
TOTAL ASSETS
Total Short-Term Assets	$172.9M	$152.5M
Total Long-Term Assets	$5.515B	$5.217B
Total Assets	$5.687B	$5.370B
YoY Change	5.92%	2.73%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$113.6M	$100.4M
YoY Change	13.15%	-1.47%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$113.6M	$100.4M
YoY Change	13.15%	-1.47%
LONG-TERM LIABILITIES
Long-Term Debt	$307.4M	$262.3M
YoY Change	17.19%	0.0%
Other Long-Term Liabilities	$166.2M	$148.7M
YoY Change	11.77%	-1.13%
Total Long-Term Liabilities	$473.6M	$411.0M
YoY Change	15.23%	-0.41%
TOTAL LIABILITIES
Total Short-Term Liabilities	$113.6M	$100.4M
Total Long-Term Liabilities	$473.6M	$411.0M
Total Liabilities	$4.602B	$4.269B
YoY Change	7.82%	2.18%
SHAREHOLDERS EQUITY
Retained Earnings	$1.120B
YoY Change
Common Stock	$461.7M
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)	$555.3M
YoY Change
Treasury Stock Shares	43.01M shares
Shareholders Equity	$1.085B	$1.046B
YoY Change
Total Liabilities & Shareholders Equity	$5.687B	$5.370B
YoY Change	5.92%	2.73%

Concept	2012 Q2	2011 Q2
OPERATING ACTIVITIES
Net Income	$288.0K	$1.467M
YoY Change	-80.37%	-92.2%
Depreciation, Depletion And Amortization	$9.900M	$8.300M
YoY Change	19.28%	23.88%
Cash From Operating Activities	$16.30M	$31.80M
YoY Change	-48.74%	26.69%
INVESTING ACTIVITIES
Capital Expenditures	-$4.500M	-$1.400M
YoY Change	221.43%	-17.65%
Acquisitions
YoY Change
Other Investing Activities	-$6.500M	-$25.30M
YoY Change	-74.31%	336.21%
Cash From Investing Activities	-$11.00M	-$26.80M
YoY Change	-58.96%	252.63%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-5.300M	-5.300M
YoY Change	0.0%	-69.01%
NET CHANGE
Cash From Operating Activities	16.30M	31.80M
Cash From Investing Activities	-11.00M	-26.80M
Cash From Financing Activities	-5.300M	-5.300M
Net Change In Cash	0.000000008382	-300.0K
YoY Change	-100.0%	-175.0%
FREE CASH FLOW
Cash From Operating Activities	$16.30M	$31.80M
Capital Expenditures	-$4.500M	-$1.400M
Free Cash Flow	$20.80M	$33.20M
YoY Change	-37.35%	23.88%

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q2	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	36110000	USD
CY2011Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	35842000	USD
CY2012Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	164835000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	160294000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	96125000	USD
CY2012Q2	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	111063000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	54953000	USD
CY2012Q2	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	53096000	USD
CY2012Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	58504000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	42294000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Debt Securities AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxDebtSecurities	3500000	USD
CY2012Q2	us-gaap	Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Debt Securities AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxDebtSecurities	3187000	USD
CY2012Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	265729000	USD
CY2011Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	257370000	USD
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	37830000	USD
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	33778000	USD
CY2012Q2	us-gaap	Assets Assets	5687408000	USD
CY2011Q4	us-gaap	Assets Assets	5685469000	USD
	us-gaap	Assumed Premiums Earned Property And Casualty AssumedPremiumsEarnedPropertyAndCasualty	11240000	USD
CY2012Q2	us-gaap	Assumed Premiums Earned Property And Casualty AssumedPremiumsEarnedPropertyAndCasualty	16039000	USD
	us-gaap	Assumed Premiums Earned Property And Casualty AssumedPremiumsEarnedPropertyAndCasualty	31088000	USD
	us-gaap	Assumed Premiums Written Property And Casualty AssumedPremiumsWrittenPropertyAndCasualty	7190000	USD
CY2011Q2	us-gaap	Assumed Premiums Earned Property And Casualty AssumedPremiumsEarnedPropertyAndCasualty	5351000	USD
CY2012Q2	us-gaap	Assumed Premiums Written Property And Casualty AssumedPremiumsWrittenPropertyAndCasualty	4747000	USD
CY2011Q2	us-gaap	Assumed Premiums Written Property And Casualty AssumedPremiumsWrittenPropertyAndCasualty	1537000	USD
	us-gaap	Assumed Premiums Written Property And Casualty AssumedPremiumsWrittenPropertyAndCasualty	26736000	USD
CY2012Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	2974819000	USD
CY2011Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	2766856000	USD
CY2011Q4	us-gaap	Available For Sale Equity Securities Amortized Cost Basis AvailableForSaleEquitySecuritiesAmortizedCostBasis	143826000	USD
CY2012Q2	us-gaap	Available For Sale Equity Securities Amortized Cost Basis AvailableForSaleEquitySecuritiesAmortizedCostBasis	130257000	USD
CY2012Q2	us-gaap	Available For Sale Securities AvailableForSaleSecurities	3271123000	USD
CY2011Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	3054728000	USD
CY2012Q2	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	3105076000	USD
CY2011Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	2910682000	USD
CY2012Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	184542000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	217502000	USD
CY2012Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	42601000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	46097000	USD
CY2012Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	841420000	USD
CY2012Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	1861652000	USD
CY2012Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	67511000	USD
CY2012Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	352423000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	2897373000	USD
CY2012Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	3123006000	USD
CY2011Q4	us-gaap	Available For Sale Securities Equity Securities AvailableForSaleSecuritiesEquitySecurities	157355000	USD
CY2012Q2	us-gaap	Available For Sale Securities Equity Securities AvailableForSaleSecuritiesEquitySecurities	148117000	USD
CY2011Q2	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	468000	USD
	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	6671000	USD
	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	4775000	USD
CY2012Q2	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	0	USD
CY2012Q2	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	-8385000	USD
CY2011Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	-9466000	USD
CY2012Q2	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses1 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1	3841000	USD
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses1 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1	3719000	USD
CY2012Q2	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses1 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1	4544000	USD
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses1 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1	5747000	USD
CY2012Q2	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	-174432000	USD
CY2011Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	-153512000	USD
	us-gaap	Basis Of Accounting BasisOfAccounting	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Basis of Presentation</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">These interim unaudited consolidated financial statements (“Financial Statements”) include the accounts of the Parent and its subsidiaries, and have been prepared in conformity with: (i) U.S. generally accepted accounting principles (“GAAP”); and (ii) the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. The preparation of the Financial Statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported financial statement balances, as well as the disclosure of contingent assets and liabilities. Actual results could differ from those estimates. All significant intercompany accounts and transactions between the Parent and its subsidiaries are eliminated in consolidation.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">These Financial Statements reflect all adjustments that, in our opinion, are normal, recurring, and necessary for a fair presentation of our results of operations and financial condition. The Financial Statements cover the second quarters ended </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">June 30, 2012</font><font style="font-family:inherit;font-size:10pt;"> (“</font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Second Quarter 2012</font><font style="font-family:inherit;font-size:10pt;">”) and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">June 30, 2011</font><font style="font-family:inherit;font-size:10pt;"> (“</font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Second Quarter 2011</font><font style="font-family:inherit;font-size:10pt;">”) and the six-month periods ended </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">June 30, 2012</font><font style="font-family:inherit;font-size:10pt;"> ("</font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Six Months 2012</font><font style="font-family:inherit;font-size:10pt;">") and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">June 30, 2011</font><font style="font-family:inherit;font-size:10pt;"> ("</font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Six Months 2011</font><font style="font-family:inherit;font-size:10pt;">"). The Financial Statements do not include all of the information and disclosures required by GAAP and the SEC for audited financial statements. Results of operations for any interim period are not necessarily indicative of results for a full year. Consequently, the Financial Statements should be read in conjunction with the consolidated financial statements contained in our Annual Report on Form 10-K for the year ended </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">December 31, 2011</font><font style="font-family:inherit;font-size:10pt;"> (“</font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">2011 Annual Report</font><font style="font-family:inherit;font-size:10pt;">”).</font></div></div>
CY2012Q2	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	429599000	USD
CY2011Q2	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	399669000	USD
	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	776967000	USD
	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	825756000	USD
CY2012Q2	us-gaap	Cash Cash	141000	USD
CY2011Q4	us-gaap	Cash Cash	762000	USD
CY2010Q4	us-gaap	Cash Cash	645000	USD
CY2011Q2	us-gaap	Cash Cash	185000	USD
	us-gaap	Cash Period Increase Decrease CashPeriodIncreaseDecrease	-621000	USD
	us-gaap	Cash Period Increase Decrease CashPeriodIncreaseDecrease	-460000	USD
CY2011Q2	us-gaap	Ceded Premiums Earned Property And Casualty CededPremiumsEarnedPropertyAndCasualty	68748000	USD
CY2012Q2	us-gaap	Ceded Premiums Earned Property And Casualty CededPremiumsEarnedPropertyAndCasualty	87157000	USD
	us-gaap	Ceded Premiums Earned Property And Casualty CededPremiumsEarnedPropertyAndCasualty	136173000	USD
	us-gaap	Ceded Premiums Earned Property And Casualty CededPremiumsEarnedPropertyAndCasualty	175365000	USD
	us-gaap	Ceded Premiums Written Property And Casualty CededPremiumsWrittenPropertyAndCasualty	164487000	USD
CY2012Q2	us-gaap	Ceded Premiums Written Property And Casualty CededPremiumsWrittenPropertyAndCasualty	86704000	USD
CY2011Q2	us-gaap	Ceded Premiums Written Property And Casualty CededPremiumsWrittenPropertyAndCasualty	74629000	USD
	us-gaap	Ceded Premiums Written Property And Casualty CededPremiumsWrittenPropertyAndCasualty	141789000	USD
CY2012Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2011Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.26
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.26
CY2012Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.13
CY2011Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.13
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2
CY2012Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	360000000	shares
CY2012Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	360000000	shares
CY2012Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	97960814	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	97246711	shares
CY2012Q2	us-gaap	Common Stock Value CommonStockValue	195921000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	194494000	USD
CY2011Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	19835000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	34591000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	36087000	USD
CY2012Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5808000	USD
CY2012Q2	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-500000	USD
	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	7387000	USD
CY2011Q2	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	3111000	USD
	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	6678000	USD
CY2012Q2	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-480000	USD
	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2560000	USD
	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3295000	USD
CY2011Q2	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-4677000	USD
CY2011Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	135761000	USD
CY2012Q2	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	152399000	USD
	us-gaap	Deferred Policy Acquisition Costs Period Increase Decrease DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease	-3624000	USD
	us-gaap	Deferred Policy Acquisition Costs Period Increase Decrease DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease	-16638000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	120094000	USD
CY2012Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	113925000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	16261000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	19550000	USD
	us-gaap	Direct Premiums Earned Property And Casualty DirectPremiumsEarnedPropertyAndCasualty	915318000	USD
CY2011Q2	us-gaap	Direct Premiums Earned Property And Casualty DirectPremiumsEarnedPropertyAndCasualty	418977000	USD
CY2012Q2	us-gaap	Direct Premiums Earned Property And Casualty DirectPremiumsEarnedPropertyAndCasualty	463330000	USD
	us-gaap	Direct Premiums Earned Property And Casualty DirectPremiumsEarnedPropertyAndCasualty	831856000	USD
	us-gaap	Direct Premiums Written Property And Casualty DirectPremiumsWrittenPropertyAndCasualty	870937000	USD
CY2012Q2	us-gaap	Direct Premiums Written Property And Casualty DirectPremiumsWrittenPropertyAndCasualty	507520000	USD
	us-gaap	Direct Premiums Written Property And Casualty DirectPremiumsWrittenPropertyAndCasualty	983486000	USD
CY2011Q2	us-gaap	Direct Premiums Written Property And Casualty DirectPremiumsWrittenPropertyAndCasualty	447595000	USD
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.01
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.41
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.03
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.01
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.33
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.40
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.03
	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	2522300000	USD
CY2012Q1	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	342000000	USD
	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	641400000	USD
CY2011Q1	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	1096200000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	-185000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	873000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings	20000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings	-960000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome	505000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome	507000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues	0	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	0	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	0	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	2610000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	1168000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	8588000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	24344000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	27910000	USD
CY2012Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	34413000	USD
CY2010Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	5187000	USD
CY2012Q2	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged	-63400000	USD
CY2012Q2	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	58000000	USD
CY2011Q2	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	2315000	USD
	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	8705000	USD
CY2012Q2	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	272000	USD
	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	5051000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	7849000	USD
CY2012Q2	us-gaap	Goodwill Goodwill	7849000	USD
CY2011Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	712348000	USD
CY2012Q2	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	643501000	USD
CY2011Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	7244000	USD
CY2012Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	7815000	USD
CY2011Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	15029000	USD
CY2012Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	6833000	USD
CY2012Q2	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	82051000	USD
CY2012Q2	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	494584000	USD
CY2012Q2	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	8223000	USD
CY2012Q2	us-gaap	Held To Maturity Securities Debt Maturities Fair Value HeldToMaturitySecuritiesDebtMaturitiesFairValue	687981000	USD
CY2012Q2	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	103123000	USD
CY2011Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	758043000	USD
CY2012Q2	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	687981000	USD
CY2012Q2	us-gaap	Held To Maturity Securities Transferred Security At Carrying Value HeldToMaturitySecuritiesTransferredSecurityAtCarryingValue	7900000	USD
	us-gaap	Held To Maturity Securities Transferred To Available For Sale Securities Unrealized Gain Loss HeldToMaturitySecuritiesTransferredToAvailableForSaleSecuritiesUnrealizedGainLoss	1000000	USD
CY2012Q2	us-gaap	Impairment Of Investments ImpairmentOfInvestments	40000	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	369000	USD
CY2011Q2	us-gaap	Impairment Of Investments ImpairmentOfInvestments	-163000	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	297000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	26059000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-99000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-692000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	22499000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-496000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	726000	USD
CY2012Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-980000	USD
CY2011Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1566000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4118000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4092000	USD
CY2012Q2	us-gaap	Income Tax Receivable IncomeTaxReceivable	1230000	USD
CY2011Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	731000	USD
	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-3058000	USD
	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	601000	USD
	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	500000	USD
	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	-514000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-5823000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-8694000	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	53017000	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	57294000	USD
CY2012Q2	us-gaap	Incurred Claims Property Casualty And Liability IncurredClaimsPropertyCasualtyAndLiability	287903000	USD
	us-gaap	Incurred Claims Property Casualty And Liability IncurredClaimsPropertyCasualtyAndLiability	540809000	USD
CY2011Q2	us-gaap	Incurred Claims Property Casualty And Liability IncurredClaimsPropertyCasualtyAndLiability	274555000	USD
	us-gaap	Incurred Claims Property Casualty And Liability IncurredClaimsPropertyCasualtyAndLiability	523761000	USD
	us-gaap	Insurance Services Revenue InsuranceServicesRevenue	712081000	USD
CY2011Q2	us-gaap	Insurance Services Revenue InsuranceServicesRevenue	357968000	USD
	us-gaap	Insurance Services Revenue InsuranceServicesRevenue	776936000	USD
CY2012Q2	us-gaap	Insurance Services Revenue InsuranceServicesRevenue	394650000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	9423000	USD
CY2012Q2	us-gaap	Interest Expense Debt InterestExpenseDebt	4723000	USD
CY2011Q2	us-gaap	Interest Expense Debt InterestExpenseDebt	4559000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	9116000	USD
	us-gaap	Interest Paid InterestPaid	9103000	USD
	us-gaap	Interest Paid InterestPaid	9389000	USD
CY2012Q2	us-gaap	Investments Investments	4175987000	USD
CY2011Q4	us-gaap	Investments Investments	4112421000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	4627141000	USD
CY2012Q2	us-gaap	Liabilities Liabilities	4602362000	USD
CY2012Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5687408000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5685469000	USD
CY2012Q2	us-gaap	Liability For Claims And Claims Adjustment Expense Property Casualty Liability LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability	3044363000	USD
CY2011Q4	us-gaap	Liability For Claims And Claims Adjustment Expense Property Casualty Liability LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability	3144924000	USD
CY2011Q4	us-gaap	Long Term Debt LongTermDebt	307360000	USD
CY2012Q2	us-gaap	Long Term Debt LongTermDebt	307373000	USD
	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Organization</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Selective Insurance Group, Inc., through its subsidiaries, (collectively referred to as “we,” “us,” or “our”) offers standard and excess and surplus lines (“E&S”) property and casualty insurance products. Selective Insurance Group, Inc. (referred to as the “Parent”) was incorporated in New Jersey in 1977 and its main offices are located in Branchville, New Jersey. The Parent’s common stock is publicly traded on the NASDAQ Global Select Market under the symbol “SIGI.”</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We classify our business into two operating segments:</font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Insurance Operations, which sells property and casualty insurance products and services in both the standard and E&S markets; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Investments, which invests the premiums collected by our insurance operations.</font></div></td></tr></table></div>
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-13581000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-13446000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-46676000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-39334000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	59797000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	52159000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	1467000	USD
	us-gaap	Net Income Loss NetIncomeLoss	18381000	USD
	us-gaap	Net Income Loss NetIncomeLoss	21967000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	288000	USD
CY2012Q2	us-gaap	Other Assets OtherAssets	52190000	USD
CY2011Q4	us-gaap	Other Assets OtherAssets	52227000	USD
CY2011Q2	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Credit Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax	-38000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Credit Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax	-37000	USD
	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Credit Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax	-75000	USD
	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Credit Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax	-75000	USD
CY2011Q2	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax	-25000	USD
	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax	-49000	USD
	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax	-49000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax	-24000	USD
CY2011Q2	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease	1142000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease	1428000	USD
	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease	2856000	USD
	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease	2284000	USD
CY2011Q2	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	743000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	929000	USD
	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	1485000	USD
	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	1857000	USD
CY2011Q2	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax OtherComprehensiveIncomeDefinedBenefitPlansTax	399000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax OtherComprehensiveIncomeDefinedBenefitPlansTax	499000	USD
	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax OtherComprehensiveIncomeDefinedBenefitPlansTax	999000	USD
	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax OtherComprehensiveIncomeDefinedBenefitPlansTax	799000	USD
CY2011Q2	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax Effect OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostTaxEffect	13000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax Effect OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostTaxEffect	13000	USD
	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax Effect OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostTaxEffect	26000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	799000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	173000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	255000	USD
CY2011Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
CY2012Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax Effect OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostTaxEffect	26000	USD
CY2011Q2	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	2144000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	218000	USD
	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	4577000	USD
	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	7893000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	142000	USD
	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	2975000	USD
CY2011Q2	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	1393000	USD
	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	5130000	USD
CY2011Q2	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	751000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	76000	USD
	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	1602000	USD
	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	2763000	USD
CY2011Q2	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax	-1104000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax	-1391000	USD
	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax	-2781000	USD
	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax	-2209000	USD
	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax	-1808000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax	-905000	USD
	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax	-1436000	USD
CY2011Q2	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax	-718000	USD
CY2011Q2	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax	-386000	USD
CY2012Q2	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax	-486000	USD
	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax	-973000	USD
	us-gaap	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax	-773000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	14938000	USD
CY2012Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	5754000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	16347000	USD
CY2011Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	5392000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	13883000	USD
	us-gaap	Other General Expense OtherGeneralExpense	10923000	USD
	us-gaap	Other General Expense OtherGeneralExpense	8849000	USD
CY2011Q2	us-gaap	Other General Expense OtherGeneralExpense	3029000	USD
CY2012Q2	us-gaap	Other General Expense OtherGeneralExpense	3191000	USD
CY2012Q2	us-gaap	Other Income OtherIncome	2511000	USD
	us-gaap	Other Income OtherIncome	6044000	USD
CY2011Q2	us-gaap	Other Income OtherIncome	2499000	USD
	us-gaap	Other Income OtherIncome	5379000	USD
CY2012Q2	us-gaap	Other Investments OtherInvestments	125540000	USD
CY2011Q4	us-gaap	Other Investments OtherInvestments	128301000	USD
CY2011Q4	us-gaap	Other Liabilities OtherLiabilities	148569000	USD
CY2012Q2	us-gaap	Other Liabilities OtherLiabilities	166222000	USD
CY2012Q2	us-gaap	Other Short Term Investments OtherShortTermInvestments	135823000	USD
CY2011Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	217044000	USD
CY2012Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	64000	USD
CY2011Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	28000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	0	USD
CY2011Q2	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	296963000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	553654000	USD
CY2012Q2	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	301451000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	566367000	USD
CY2012Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	6775000	USD
CY2012Q1	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	6711000	USD
CY2011Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	14024000	USD
CY2011Q1	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	14368000	USD
CY2011Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	6602000	USD
CY2010Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	17723000	USD
CY2011Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	372000	USD
CY2012Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	3954000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	0	USD
CY2012Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	0	USD
CY2011Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	0	USD
CY2011Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	0	USD
CY2012Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	0	USD
CY2012Q2	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	54000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	218000	USD
CY2011Q2	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	332000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	430000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-389000	USD
CY2011Q2	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-272000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-313000	USD
CY2012Q2	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-75000	USD
CY2011Q2	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxIncludingPortionAttributableToNoncontrollingInterest	-146000	USD
CY2012Q2	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxIncludingPortionAttributableToNoncontrollingInterest	-39000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxIncludingPortionAttributableToNoncontrollingInterest	-168000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxIncludingPortionAttributableToNoncontrollingInterest	-209000	USD
CY2011Q2	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	169000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	515000	USD
CY2012Q2	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	94000	USD
	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	2843000	USD
	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	6793000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3102000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2526000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	13225000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	13442000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	426346000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	252529000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	123141000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	40430000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-255000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	694764000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	7715000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	6355000	USD
	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	795707000	USD
	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Net Of Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleNetOfTax	1581000	USD
	us-gaap	Premiums Earned Net Property And Casualty PremiumsEarnedNetPropertyAndCasualty	706923000	USD
CY2012Q2	us-gaap	Premiums Earned Net Property And Casualty PremiumsEarnedNetPropertyAndCasualty	392212000	USD
CY2011Q2	us-gaap	Premiums Earned Net Property And Casualty PremiumsEarnedNetPropertyAndCasualty	355580000	USD
	us-gaap	Premiums Earned Net Property And Casualty PremiumsEarnedNetPropertyAndCasualty	771041000	USD
	us-gaap	Premiums Written Net Property And Casualty PremiumsWrittenNetPropertyAndCasualty	845735000	USD
CY2012Q2	us-gaap	Prepaid Reinsurance Premiums PrepaidReinsurancePremiums	136808000	USD
CY2011Q4	us-gaap	Prepaid Reinsurance Premiums PrepaidReinsurancePremiums	147686000	USD
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	670000	USD
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	445000	USD
	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	2355000	USD
	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	2225000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	197199000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	66805000	USD
CY2011Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0
CY2012Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0
CY2011Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0
CY2012Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2011Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2011Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2012Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2011Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2011Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2011Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2012Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2012Q2	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2011Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2012Q2	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	3470000	USD
CY2011Q4	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	3768000	USD
CY2012Q2	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	523588000	USD
CY2011Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	466294000	USD
CY2012Q2	us-gaap	Premiums Written Net Property And Casualty PremiumsWrittenNetPropertyAndCasualty	425563000	USD
	us-gaap	Premiums Written Net Property And Casualty PremiumsWrittenNetPropertyAndCasualty	736338000	USD
CY2011Q2	us-gaap	Premiums Written Net Property And Casualty PremiumsWrittenNetPropertyAndCasualty	374503000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	57152000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	99560000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	95900000	USD
CY2012Q2	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	24100000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	123800000	USD
CY2011Q2	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	52100000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	64104000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	37699000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	58176000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	59663000	USD
	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	16357000	USD
	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	1000	USD
	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	713111000	USD
	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	876928000	USD
CY2012Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	45689000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	43947000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	4536000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	7906000	USD
CY2012Q2	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	178000	USD
CY2011Q2	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	2146000	USD
	us-gaap	Reclassifications Reclassifications	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Reclassification </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certain prior year amounts in these Financial Statements and related footnotes have been reclassified to conform to the current year presentation. Such reclassifications had no effect on our net income, stockholders’ equity, or cash flows.</font></div></div>
CY2012Q2	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	10470000	USD
	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	21069000	USD
	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	7572000	USD
CY2011Q2	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	3739000	USD
	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	33914000	USD
CY2011Q2	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	26147000	USD
CY2012Q2	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	24018000	USD
	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	50178000	USD
CY2012Q2	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	441492000	USD
CY2011Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	561855000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1116319000	USD
CY2012Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1120143000	USD
CY2012Q2	us-gaap	Revenues Revenues	428907000	USD
	us-gaap	Revenues Revenues	848255000	USD
	us-gaap	Revenues Revenues	803026000	USD
CY2011Q2	us-gaap	Revenues Revenues	399570000	USD
	sigi	Accretion Of Credit Loss Impairments Previously Recognized Due To Increase In Cash Flows Expected To Be Collected AccretionOfCreditLossImpairmentsPreviouslyRecognizedDueToIncreaseInCashFlowsExpectedToBeCollected	0	USD
	sigi	Accretion Of Credit Loss Impairments Previously Recognized Due To Increase In Cash Flows Expected To Be Collected AccretionOfCreditLossImpairmentsPreviouslyRecognizedDueToIncreaseInCashFlowsExpectedToBeCollected	0	USD
CY2011Q2	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Net Of Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleNetOfTax	817000	USD
	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Net Of Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleNetOfTax	959000	USD
CY2012Q2	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	428834000	USD
	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	848106000	USD
CY2011Q2	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	399459000	USD
	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	802805000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	5160000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	5286000	USD
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	46603	shares
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	47488	shares
	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	667500	shares
	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	577745	shares
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	1058328000	USD
CY2012Q2	us-gaap	Stockholders Equity StockholdersEquity	1085046000	USD
CY2011Q2	us-gaap	Stockholders Equity StockholdersEquity	1046059000	USD
CY2012Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	43009821	shares
CY2011Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	42836201	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	173620	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	136904	shares
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	552149000	USD
CY2012Q2	us-gaap	Treasury Stock Value TreasuryStockValue	555251000	USD
CY2011Q4	us-gaap	Unearned Premiums UnearnedPremiums	906991000	USD
CY2012Q2	us-gaap	Unearned Premiums UnearnedPremiums	970806000	USD
CY2011Q2	sigi	Accretion Of Credit Loss Impairments Previously Recognized Due To Increase In Cash Flows Expected To Be Collected AccretionOfCreditLossImpairmentsPreviouslyRecognizedDueToIncreaseInCashFlowsExpectedToBeCollected	0	USD
CY2012Q2	sigi	Accretion Of Credit Loss Impairments Previously Recognized Due To Increase In Cash Flows Expected To Be Collected AccretionOfCreditLossImpairmentsPreviouslyRecognizedDueToIncreaseInCashFlowsExpectedToBeCollected	0	USD
CY2012Q2	sigi	Accrued Salaries And Benefits AccruedSalariesAndBenefits	113598000	USD
CY2011Q4	sigi	Accrued Salaries And Benefits AccruedSalariesAndBenefits	119297000	USD
CY2011Q4	sigi	Accumulated Other Comprehensive Income Loss Held To Maturity Related Net Unrealized Gain Loss AccumulatedOtherComprehensiveIncomeLossHeldToMaturityRelatedNetUnrealizedGainLoss	4622000	USD
CY2012Q2	sigi	Accumulated Other Comprehensive Income Loss Held To Maturity Related Net Unrealized Gain Loss AccumulatedOtherComprehensiveIncomeLossHeldToMaturityRelatedNetUnrealizedGainLoss	3724000	USD
CY2011Q2	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Before Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax	1258000	USD
CY2012Q2	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Before Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax	682000	USD
	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Before Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax	1476000	USD
	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Before Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax	2433000	USD
CY2012Q2	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Net Of Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleNetOfTax	443000	USD
CY2011Q2	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax	441000	USD
CY2012Q2	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax	239000	USD
	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax	517000	USD
	sigi	Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Tax AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax	852000	USD
CY2011Q4	sigi	Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Aggregate Losses AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses	5841000	USD
CY2012Q2	sigi	Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Aggregate Losses AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses	4743000	USD
CY2011Q4	sigi	Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	224746000	USD
CY2012Q2	sigi	Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	192357000	USD
CY2011Q4	sigi	Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Aggregate Losses AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses	6694000	USD
CY2012Q2	sigi	Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Aggregate Losses AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses	5051000	USD
CY2011Q4	sigi	Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	61126000	USD
CY2012Q2	sigi	Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	49434000	USD
	sigi	Available For Sale Equity Securities Gross Realized Losses AvailableForSaleEquitySecuritiesGrossRealizedLosses	428000	USD
CY2011Q2	sigi	Available For Sale Equity Securities Gross Realized Losses AvailableForSaleEquitySecuritiesGrossRealizedLosses	0	USD
CY2012Q2	sigi	Available For Sale Equity Securities Gross Realized Losses AvailableForSaleEquitySecuritiesGrossRealizedLosses	0	USD
	sigi	Available For Sale Equity Securities Gross Realized Losses AvailableForSaleEquitySecuritiesGrossRealizedLosses	0	USD
	sigi	Available For Sale Fixed Maturity Securities Gross Realized Gains AvailableForSaleFixedMaturitySecuritiesGrossRealizedGains	2354000	USD
CY2012Q2	sigi	Available For Sale Fixed Maturity Securities Gross Realized Gains AvailableForSaleFixedMaturitySecuritiesGrossRealizedGains	368000	USD
	sigi	Available For Sale Fixed Maturity Securities Gross Realized Gains AvailableForSaleFixedMaturitySecuritiesGrossRealizedGains	773000	USD
CY2011Q2	sigi	Available For Sale Fixed Maturity Securities Gross Realized Gains AvailableForSaleFixedMaturitySecuritiesGrossRealizedGains	1947000	USD
	sigi	Available For Sale Fixed Maturity Securities Gross Realized Losses AvailableForSaleFixedMaturitySecuritiesGrossRealizedLosses	117000	USD
CY2012Q2	sigi	Available For Sale Fixed Maturity Securities Gross Realized Losses AvailableForSaleFixedMaturitySecuritiesGrossRealizedLosses	74000	USD
	sigi	Available For Sale Fixed Maturity Securities Gross Realized Losses AvailableForSaleFixedMaturitySecuritiesGrossRealizedLosses	7000	USD
CY2011Q2	sigi	Available For Sale Fixed Maturity Securities Gross Realized Losses AvailableForSaleFixedMaturitySecuritiesGrossRealizedLosses	0	USD
	sigi	Changes In Net Unrealized Gain Loss Related To Held To Maturity Securities ChangesInNetUnrealizedGainLossRelatedToHeldToMaturitySecurities	-898000	USD
CY2011Q2	sigi	Comprehensive Income Loss Before Tax ComprehensiveIncomeLossBeforeTax	28158000	USD
CY2012Q2	sigi	Comprehensive Income Loss Before Tax ComprehensiveIncomeLossBeforeTax	7799000	USD
	sigi	Comprehensive Income Loss Before Tax ComprehensiveIncomeLossBeforeTax	47436000	USD

CY2012Q2

us-gaap

Accrued Investment Income Receivable

AccruedInvestmentIncomeReceivable

36110000

USD

CY2011Q4

us-gaap

Accrued Investment Income Receivable

AccruedInvestmentIncomeReceivable

35842000

USD

CY2012Q2

us-gaap

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

164835000

USD

CY2011Q4

us-gaap

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

160294000

USD

CY2011Q4

us-gaap

Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

96125000

USD

CY2012Q2

us-gaap

Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

111063000

USD

CY2011Q4

us-gaap

Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax

AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax

54953000

USD

CY2012Q2

us-gaap

Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax

AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax

53096000

USD

CY2012Q2

us-gaap

Accumulated Other Comprehensive Income Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossNetOfTax

58504000

USD

CY2011Q4

us-gaap

Accumulated Other Comprehensive Income Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossNetOfTax

42294000

USD

CY2011Q4

us-gaap

Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Debt Securities

AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxDebtSecurities

3500000

USD

CY2012Q2

us-gaap

Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Debt Securities

AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxDebtSecurities

3187000

USD

CY2012Q2

us-gaap

Additional Paid In Capital Common Stock

AdditionalPaidInCapitalCommonStock

265729000

USD

CY2011Q4

us-gaap

Additional Paid In Capital Common Stock

AdditionalPaidInCapitalCommonStock

257370000

USD

us-gaap

Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities

AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities

37830000

USD

us-gaap

Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities

AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities

33778000

USD

CY2012Q2

us-gaap

Assets

5687408000

USD

CY2011Q4

us-gaap

Assets

5685469000

USD

us-gaap

Assumed Premiums Earned Property And Casualty

AssumedPremiumsEarnedPropertyAndCasualty

11240000

USD

CY2012Q2

us-gaap

Assumed Premiums Earned Property And Casualty

AssumedPremiumsEarnedPropertyAndCasualty

16039000

USD

us-gaap

Assumed Premiums Earned Property And Casualty

AssumedPremiumsEarnedPropertyAndCasualty

31088000

USD

us-gaap

Assumed Premiums Written Property And Casualty

AssumedPremiumsWrittenPropertyAndCasualty

7190000

USD

CY2011Q2

us-gaap

Assumed Premiums Earned Property And Casualty

AssumedPremiumsEarnedPropertyAndCasualty

5351000

USD

CY2012Q2

us-gaap

Assumed Premiums Written Property And Casualty

AssumedPremiumsWrittenPropertyAndCasualty

4747000

USD

CY2011Q2

us-gaap

Assumed Premiums Written Property And Casualty

AssumedPremiumsWrittenPropertyAndCasualty

1537000

USD

us-gaap

Assumed Premiums Written Property And Casualty

AssumedPremiumsWrittenPropertyAndCasualty

26736000

USD

CY2012Q2

us-gaap

Available For Sale Debt Securities Amortized Cost Basis

AvailableForSaleDebtSecuritiesAmortizedCostBasis

2974819000

USD

CY2011Q4

us-gaap

Available For Sale Debt Securities Amortized Cost Basis

AvailableForSaleDebtSecuritiesAmortizedCostBasis

2766856000

USD

CY2011Q4

us-gaap

Available For Sale Equity Securities Amortized Cost Basis

AvailableForSaleEquitySecuritiesAmortizedCostBasis

143826000

USD

CY2012Q2

us-gaap

Available For Sale Equity Securities Amortized Cost Basis

AvailableForSaleEquitySecuritiesAmortizedCostBasis

130257000

USD

CY2012Q2

us-gaap

Available For Sale Securities

AvailableForSaleSecurities

3271123000

USD

CY2011Q4

us-gaap

Available For Sale Securities

AvailableForSaleSecurities

3054728000

USD

CY2012Q2

us-gaap

Available For Sale Securities Amortized Cost

AvailableForSaleSecuritiesAmortizedCost

3105076000

USD

CY2011Q4

us-gaap

Available For Sale Securities Amortized Cost

AvailableForSaleSecuritiesAmortizedCost

2910682000

USD

CY2012Q2

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

184542000

USD

CY2011Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

217502000

USD

CY2012Q2

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue

42601000

USD

CY2011Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue

46097000

USD

CY2012Q2

us-gaap

Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value

AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue

841420000

USD

CY2012Q2

us-gaap

Available For Sale Securities Debt Maturities After One Through Five Years Fair Value

AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue

1861652000

USD

CY2012Q2

us-gaap

Available For Sale Securities Debt Maturities After Ten Years Fair Value

AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue

67511000

USD

CY2012Q2

us-gaap

Available For Sale Securities Debt Maturities Within One Year Fair Value

AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue

352423000

USD

CY2011Q4

us-gaap

Available For Sale Securities Debt Securities

AvailableForSaleSecuritiesDebtSecurities

2897373000

USD

CY2012Q2

us-gaap

Available For Sale Securities Debt Securities

AvailableForSaleSecuritiesDebtSecurities

3123006000

USD

CY2011Q4

us-gaap

Available For Sale Securities Equity Securities

AvailableForSaleSecuritiesEquitySecurities

157355000

USD

CY2012Q2

us-gaap

Available For Sale Securities Equity Securities

AvailableForSaleSecuritiesEquitySecurities

148117000

USD

CY2011Q2

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

468000

USD

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

6671000

USD

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

4775000

USD

CY2012Q2

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

0

USD

CY2012Q2

us-gaap

Available For Sale Securities Gross Unrealized Losses1

AvailableForSaleSecuritiesGrossUnrealizedLosses1

-8385000

USD

CY2011Q4

us-gaap

Available For Sale Securities Gross Unrealized Losses1

AvailableForSaleSecuritiesGrossUnrealizedLosses1

-9466000

USD

CY2012Q2

us-gaap

Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses1

AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1

3841000

USD

CY2011Q4

us-gaap

Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses1

AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1

3719000

USD

CY2012Q2

us-gaap

Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses1

AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1

4544000

USD

CY2011Q4

us-gaap

Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses1

AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1

5747000

USD

CY2012Q2

us-gaap

Availableforsale Securities Gross Unrealized Gain

AvailableforsaleSecuritiesGrossUnrealizedGain

-174432000

USD

CY2011Q4

us-gaap

Availableforsale Securities Gross Unrealized Gain

AvailableforsaleSecuritiesGrossUnrealizedGain

-153512000

USD

us-gaap

Basis Of Accounting

BasisOfAccounting

<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Basis of Presentation</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">These interim unaudited consolidated financial statements (“Financial Statements”) include the accounts of the Parent and its subsidiaries, and have been prepared in conformity with: (i) U.S. generally accepted accounting principles (“GAAP”); and (ii) the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. The preparation of the Financial Statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported financial statement balances, as well as the disclosure of contingent assets and liabilities. Actual results could differ from those estimates. All significant intercompany accounts and transactions between the Parent and its subsidiaries are eliminated in consolidation.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">These Financial Statements reflect all adjustments that, in our opinion, are normal, recurring, and necessary for a fair presentation of our results of operations and financial condition. The Financial Statements cover the second quarters ended </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">June 30, 2012</font><font style="font-family:inherit;font-size:10pt;"> (“</font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Second Quarter 2012</font><font style="font-family:inherit;font-size:10pt;">”) and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">June 30, 2011</font><font style="font-family:inherit;font-size:10pt;"> (“</font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Second Quarter 2011</font><font style="font-family:inherit;font-size:10pt;">”) and the six-month periods ended </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">June 30, 2012</font><font style="font-family:inherit;font-size:10pt;"> ("</font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Six Months 2012</font><font style="font-family:inherit;font-size:10pt;">") and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">June 30, 2011</font><font style="font-family:inherit;font-size:10pt;"> ("</font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Six Months 2011</font><font style="font-family:inherit;font-size:10pt;">"). The Financial Statements do not include all of the information and disclosures required by GAAP and the SEC for audited financial statements. Results of operations for any interim period are not necessarily indicative of results for a full year. Consequently, the Financial Statements should be read in conjunction with the consolidated financial statements contained in our Annual Report on Form 10-K for the year ended </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">December 31, 2011</font><font style="font-family:inherit;font-size:10pt;"> (“</font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">2011 Annual Report</font><font style="font-family:inherit;font-size:10pt;">”).</font></div></div>

CY2012Q2

us-gaap

Benefits Losses And Expenses

BenefitsLossesAndExpenses

429599000

USD

CY2011Q2

us-gaap

Benefits Losses And Expenses

BenefitsLossesAndExpenses

399669000

USD

us-gaap

Benefits Losses And Expenses

BenefitsLossesAndExpenses

776967000

USD

us-gaap

Benefits Losses And Expenses

BenefitsLossesAndExpenses

825756000

USD

CY2012Q2

us-gaap

Cash

141000

USD

CY2011Q4

us-gaap

Cash

762000

USD

CY2010Q4

us-gaap

Cash

645000

USD

CY2011Q2

us-gaap

Cash

185000

USD

us-gaap

Cash Period Increase Decrease

CashPeriodIncreaseDecrease

-621000

USD

us-gaap

Cash Period Increase Decrease

CashPeriodIncreaseDecrease

-460000

USD

CY2011Q2

us-gaap

Ceded Premiums Earned Property And Casualty

CededPremiumsEarnedPropertyAndCasualty

68748000

USD

CY2012Q2

us-gaap

Ceded Premiums Earned Property And Casualty

CededPremiumsEarnedPropertyAndCasualty

87157000

USD

us-gaap

Ceded Premiums Earned Property And Casualty

CededPremiumsEarnedPropertyAndCasualty

136173000

USD

us-gaap

Ceded Premiums Earned Property And Casualty

CededPremiumsEarnedPropertyAndCasualty

175365000

USD

us-gaap

Ceded Premiums Written Property And Casualty

CededPremiumsWrittenPropertyAndCasualty

164487000

USD

CY2012Q2

us-gaap

Ceded Premiums Written Property And Casualty

CededPremiumsWrittenPropertyAndCasualty

86704000

USD

CY2011Q2

us-gaap

Ceded Premiums Written Property And Casualty

CededPremiumsWrittenPropertyAndCasualty

74629000

USD

us-gaap

Ceded Premiums Written Property And Casualty

CededPremiumsWrittenPropertyAndCasualty

141789000

USD

CY2012Q2

us-gaap

Commitments And Contingencies

CommitmentsAndContingencies

USD

CY2011Q4

us-gaap

Commitments And Contingencies

CommitmentsAndContingencies

USD

us-gaap

Common Stock Dividends Per Share Declared

CommonStockDividendsPerShareDeclared

0.26

us-gaap

Common Stock Dividends Per Share Declared

CommonStockDividendsPerShareDeclared

0.26

CY2012Q2

us-gaap

Common Stock Dividends Per Share Declared

CommonStockDividendsPerShareDeclared

0.13

CY2011Q2

us-gaap

Common Stock Dividends Per Share Declared

CommonStockDividendsPerShareDeclared

0.13

CY2011Q4

us-gaap

Common Stock Par Or Stated Value Per Share

CommonStockParOrStatedValuePerShare

2

CY2012Q2

us-gaap

Common Stock Par Or Stated Value Per Share

CommonStockParOrStatedValuePerShare

2

CY2011Q4

us-gaap

Common Stock Shares Authorized

CommonStockSharesAuthorized

360000000

shares

CY2012Q2

us-gaap

Common Stock Shares Authorized

CommonStockSharesAuthorized

360000000

shares

CY2012Q2

us-gaap

Common Stock Shares Issued

CommonStockSharesIssued

97960814

shares

CY2011Q4

us-gaap

Common Stock Shares Issued

CommonStockSharesIssued

97246711

shares

CY2012Q2

us-gaap

Common Stock Value

CommonStockValue

195921000

USD

CY2011Q4

us-gaap

Common Stock Value

CommonStockValue

194494000

USD

CY2011Q2

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

19835000

USD

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

34591000

USD

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

36087000

USD

CY2012Q2

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

5808000

USD

CY2012Q2

us-gaap

Current Federal Tax Expense Benefit

CurrentFederalTaxExpenseBenefit

-500000

USD

us-gaap

Current Federal Tax Expense Benefit

CurrentFederalTaxExpenseBenefit

7387000

USD

CY2011Q2

us-gaap

Current Federal Tax Expense Benefit

CurrentFederalTaxExpenseBenefit

3111000

USD

us-gaap

Current Federal Tax Expense Benefit

CurrentFederalTaxExpenseBenefit

6678000

USD

CY2012Q2

us-gaap

Deferred Federal Income Tax Expense Benefit

DeferredFederalIncomeTaxExpenseBenefit

-480000

USD

us-gaap

Deferred Federal Income Tax Expense Benefit

DeferredFederalIncomeTaxExpenseBenefit

-2560000

USD

us-gaap

Deferred Federal Income Tax Expense Benefit

DeferredFederalIncomeTaxExpenseBenefit

-3295000

USD

CY2011Q2

us-gaap

Deferred Federal Income Tax Expense Benefit

DeferredFederalIncomeTaxExpenseBenefit

-4677000

USD

CY2011Q4

us-gaap

Deferred Policy Acquisition Costs

DeferredPolicyAcquisitionCosts

135761000

USD

CY2012Q2

us-gaap

Deferred Policy Acquisition Costs

DeferredPolicyAcquisitionCosts

152399000

USD

us-gaap

Deferred Policy Acquisition Costs Period Increase Decrease

DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease

-3624000

USD

us-gaap

Deferred Policy Acquisition Costs Period Increase Decrease

DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease

-16638000

USD

CY2011Q4

us-gaap

Deferred Tax Assets Net

DeferredTaxAssetsNet

120094000

USD

CY2012Q2

us-gaap

Deferred Tax Assets Net

DeferredTaxAssetsNet

113925000

USD

us-gaap

Depreciation Amortization And Accretion Net

DepreciationAmortizationAndAccretionNet

16261000

USD

us-gaap

Depreciation Amortization And Accretion Net

DepreciationAmortizationAndAccretionNet

19550000

USD

us-gaap

Direct Premiums Earned Property And Casualty

DirectPremiumsEarnedPropertyAndCasualty

915318000

USD

CY2011Q2

us-gaap

Direct Premiums Earned Property And Casualty

DirectPremiumsEarnedPropertyAndCasualty

418977000

USD

CY2012Q2

us-gaap

Direct Premiums Earned Property And Casualty

DirectPremiumsEarnedPropertyAndCasualty

463330000

USD

us-gaap

Direct Premiums Earned Property And Casualty

DirectPremiumsEarnedPropertyAndCasualty

831856000

USD

us-gaap

Direct Premiums Written Property And Casualty

DirectPremiumsWrittenPropertyAndCasualty

870937000

USD

CY2012Q2

us-gaap

Direct Premiums Written Property And Casualty

DirectPremiumsWrittenPropertyAndCasualty

507520000

USD

us-gaap

Direct Premiums Written Property And Casualty

DirectPremiumsWrittenPropertyAndCasualty

983486000

USD

CY2011Q2

us-gaap

Direct Premiums Written Property And Casualty

DirectPremiumsWrittenPropertyAndCasualty

447595000

USD

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.34

CY2012Q2

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.01

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.41

CY2011Q2

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.03

CY2012Q2

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.01

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.33

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.40

CY2011Q2

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.03

us-gaap

Equity Method Investment Summarized Financial Information Net Income Loss

EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss

2522300000

USD

CY2012Q1

us-gaap

Equity Method Investment Summarized Financial Information Net Income Loss

EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss

342000000

USD

us-gaap

Equity Method Investment Summarized Financial Information Net Income Loss

EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss

641400000

USD

CY2011Q1

us-gaap

Equity Method Investment Summarized Financial Information Net Income Loss

EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss

1096200000

USD

us-gaap

Excess Tax Benefit From Share Based Compensation Financing Activities

ExcessTaxBenefitFromShareBasedCompensationFinancingActivities

-185000

USD

us-gaap

Excess Tax Benefit From Share Based Compensation Financing Activities

ExcessTaxBenefitFromShareBasedCompensationFinancingActivities

873000

USD

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings

20000

USD

CY2011

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings

-960000

USD

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment

0

USD

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome

505000

USD

CY2011

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome

507000

USD

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Issues

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues

0

USD

CY2011

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Issues

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues

0

USD

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases

0

USD

CY2011

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases

0

USD

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales

0

USD

CY2011

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales

0

USD

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements

2610000

USD

CY2011

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements

1168000

USD

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3

8588000

USD

CY2011

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3

24344000

USD

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3

0

USD

CY2011

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3

0

USD

CY2011Q4

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue

27910000

USD

CY2012Q2

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue

34413000

USD

CY2010Q4

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue

5187000

USD

CY2012Q2

us-gaap

Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged

FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged

-63400000

USD

CY2012Q2

us-gaap

Federal Home Loan Bank Advances Long Term

FederalHomeLoanBankAdvancesLongTerm

58000000

USD

CY2011Q2

us-gaap

Gain Loss On Sale Of Securities Net

GainLossOnSaleOfSecuritiesNet

2315000

USD

us-gaap

Gain Loss On Sale Of Securities Net

GainLossOnSaleOfSecuritiesNet

8705000

USD

CY2012Q2

us-gaap

Gain Loss On Sale Of Securities Net

GainLossOnSaleOfSecuritiesNet

272000

USD

us-gaap

Gain Loss On Sale Of Securities Net

GainLossOnSaleOfSecuritiesNet

5051000

USD

CY2011Q4

us-gaap

Goodwill

7849000

USD

CY2012Q2

us-gaap

Goodwill

7849000

USD

CY2011Q4

us-gaap

Held To Maturity Securities

HeldToMaturitySecurities

712348000

USD

CY2012Q2

us-gaap

Held To Maturity Securities

HeldToMaturitySecurities

643501000

USD

CY2011Q4

us-gaap

Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value

HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

7244000

USD

CY2012Q2

us-gaap

Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value

HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

7815000

USD

CY2011Q4

us-gaap

Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value

HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue

15029000

USD

CY2012Q2

us-gaap

Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value

HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue

6833000

USD

CY2012Q2

us-gaap

Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value

HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue

82051000

USD

CY2012Q2

us-gaap

Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value

HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue

494584000

USD

CY2012Q2

us-gaap

Held To Maturity Securities Debt Maturities After Ten Years Fair Value

HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue

8223000

USD

CY2012Q2

us-gaap

Held To Maturity Securities Debt Maturities Fair Value

HeldToMaturitySecuritiesDebtMaturitiesFairValue

687981000

USD

CY2012Q2

us-gaap

Held To Maturity Securities Debt Maturities Within One Year Fair Value

HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue

103123000

USD

CY2011Q4

us-gaap

Held To Maturity Securities Fair Value

HeldToMaturitySecuritiesFairValue

758043000

USD

CY2012Q2

us-gaap

Held To Maturity Securities Fair Value

HeldToMaturitySecuritiesFairValue

687981000

USD

CY2012Q2

us-gaap

Held To Maturity Securities Transferred Security At Carrying Value

HeldToMaturitySecuritiesTransferredSecurityAtCarryingValue

7900000

USD

us-gaap

Held To Maturity Securities Transferred To Available For Sale Securities Unrealized Gain Loss

HeldToMaturitySecuritiesTransferredToAvailableForSaleSecuritiesUnrealizedGainLoss

1000000

USD

CY2012Q2

us-gaap

Impairment Of Investments

ImpairmentOfInvestments

40000

USD

us-gaap

Impairment Of Investments

ImpairmentOfInvestments

369000

USD

CY2011Q2

us-gaap

Impairment Of Investments

ImpairmentOfInvestments

-163000

USD

us-gaap

Impairment Of Investments

ImpairmentOfInvestments

297000

USD

us-gaap

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

26059000

USD

CY2011Q2

us-gaap

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

-99000

USD

CY2012Q2

us-gaap

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

-692000

USD

us-gaap

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

22499000

USD

us-gaap

Income Loss From Equity Method Investments Net Of Dividends Or Distributions

IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions

-496000

USD

us-gaap

Income Loss From Equity Method Investments Net Of Dividends Or Distributions

IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions

726000

USD

CY2012Q2

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

-980000

USD

CY2011Q2

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

-1566000

USD

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

4118000

USD

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

4092000

USD

CY2012Q2

us-gaap

Income Tax Receivable

IncomeTaxReceivable

1230000

USD

CY2011Q4

us-gaap

Income Tax Receivable

IncomeTaxReceivable

731000

USD

us-gaap

Increase Decrease In Income Taxes

IncreaseDecreaseInIncomeTaxes

-3058000

USD

us-gaap

Increase Decrease In Income Taxes

IncreaseDecreaseInIncomeTaxes

601000

USD

us-gaap

Increase Decrease In Interest And Dividends Receivable

IncreaseDecreaseInInterestAndDividendsReceivable

500000

USD

us-gaap

Increase Decrease In Interest And Dividends Receivable

IncreaseDecreaseInInterestAndDividendsReceivable

-514000

USD

us-gaap

Increase Decrease In Other Operating Capital Net

IncreaseDecreaseInOtherOperatingCapitalNet

-5823000

USD

us-gaap

Increase Decrease In Other Operating Capital Net

IncreaseDecreaseInOtherOperatingCapitalNet

-8694000

USD

us-gaap

Increase Decrease In Premiums Receivable

IncreaseDecreaseInPremiumsReceivable

53017000

USD

us-gaap

Increase Decrease In Premiums Receivable

IncreaseDecreaseInPremiumsReceivable

57294000

USD

CY2012Q2

us-gaap

Incurred Claims Property Casualty And Liability

IncurredClaimsPropertyCasualtyAndLiability

287903000

USD

us-gaap

Incurred Claims Property Casualty And Liability

IncurredClaimsPropertyCasualtyAndLiability

540809000

USD

CY2011Q2

us-gaap

Incurred Claims Property Casualty And Liability

IncurredClaimsPropertyCasualtyAndLiability

274555000

USD

us-gaap

Incurred Claims Property Casualty And Liability

IncurredClaimsPropertyCasualtyAndLiability

523761000

USD

us-gaap

Insurance Services Revenue

InsuranceServicesRevenue

712081000

USD

CY2011Q2

us-gaap

Insurance Services Revenue

InsuranceServicesRevenue

357968000

USD

us-gaap

Insurance Services Revenue

InsuranceServicesRevenue

776936000

USD

CY2012Q2

us-gaap

Insurance Services Revenue

InsuranceServicesRevenue

394650000

USD

us-gaap

Interest Expense Debt

InterestExpenseDebt

9423000

USD

CY2012Q2

us-gaap

Interest Expense Debt

InterestExpenseDebt

4723000

USD

CY2011Q2

us-gaap

Interest Expense Debt

InterestExpenseDebt

4559000

USD

us-gaap

Interest Expense Debt

InterestExpenseDebt

9116000

USD

us-gaap

Interest Paid

InterestPaid

9103000

USD

us-gaap

Interest Paid

InterestPaid

9389000

USD

CY2012Q2

us-gaap

Investments

4175987000

USD

CY2011Q4

us-gaap

Investments

4112421000

USD

CY2011Q4

us-gaap

Liabilities

4627141000

USD

CY2012Q2

us-gaap

Liabilities

4602362000

USD

CY2012Q2

us-gaap

Liabilities And Stockholders Equity

LiabilitiesAndStockholdersEquity

5687408000

USD

CY2011Q4

us-gaap

Liabilities And Stockholders Equity

LiabilitiesAndStockholdersEquity

5685469000

USD

CY2012Q2

us-gaap

Liability For Claims And Claims Adjustment Expense Property Casualty Liability

LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability

3044363000

USD

CY2011Q4

us-gaap

Liability For Claims And Claims Adjustment Expense Property Casualty Liability

LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability

3144924000

USD

CY2011Q4

us-gaap

Long Term Debt

LongTermDebt

307360000

USD

CY2012Q2

us-gaap

Long Term Debt

LongTermDebt

307373000

USD

us-gaap

Nature Of Operations

NatureOfOperations

<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Organization</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Selective Insurance Group, Inc., through its subsidiaries, (collectively referred to as “we,” “us,” or “our”) offers standard and excess and surplus lines (“E&S”) property and casualty insurance products. Selective Insurance Group, Inc. (referred to as the “Parent”) was incorporated in New Jersey in 1977 and its main offices are located in Branchville, New Jersey. The Parent’s common stock is publicly traded on the NASDAQ Global Select Market under the symbol “SIGI.”</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We classify our business into two operating segments:</font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Insurance Operations, which sells property and casualty insurance products and services in both the standard and E&S markets; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Investments, which invests the premiums collected by our insurance operations.</font></div></td></tr></table></div>

us-gaap

Net Cash Provided By Used In Financing Activities

NetCashProvidedByUsedInFinancingActivities

-13581000

USD

us-gaap

Net Cash Provided By Used In Financing Activities

NetCashProvidedByUsedInFinancingActivities

-13446000

USD

us-gaap

Net Cash Provided By Used In Investing Activities

NetCashProvidedByUsedInInvestingActivities

-46676000

USD

us-gaap

Net Cash Provided By Used In Investing Activities

NetCashProvidedByUsedInInvestingActivities

-39334000

USD

us-gaap

Net Cash Provided By Used In Operating Activities

NetCashProvidedByUsedInOperatingActivities

59797000

USD

us-gaap

Net Cash Provided By Used In Operating Activities

NetCashProvidedByUsedInOperatingActivities

52159000

USD

CY2011Q2

us-gaap

Net Income Loss

NetIncomeLoss

1467000

USD

us-gaap

Net Income Loss

NetIncomeLoss

18381000

USD

us-gaap

Net Income Loss

NetIncomeLoss

21967000

USD

CY2012Q2

us-gaap

Net Income Loss

NetIncomeLoss

288000

USD

CY2012Q2

us-gaap

Other Assets

OtherAssets

52190000

USD

CY2011Q4

us-gaap

Other Assets

OtherAssets

52227000

USD

CY2011Q2

us-gaap

Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Credit Recognized In Net Periodic Benefit Cost Before Tax

OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax

-38000

USD

CY2012Q2

us-gaap

Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Credit Recognized In Net Periodic Benefit Cost Before Tax

OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax

-37000

USD

us-gaap

Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Credit Recognized In Net Periodic Benefit Cost Before Tax

OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax

-75000

USD

us-gaap

Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Credit Recognized In Net Periodic Benefit Cost Before Tax

OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax

-75000

USD

CY2011Q2

us-gaap

Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax

OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax

-25000

USD

us-gaap

Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax

OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax

-49000

USD

us-gaap

Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax

OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax

-49000

USD

CY2012Q2

us-gaap

Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax

OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax

-24000

USD

CY2011Q2

us-gaap

Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Period Increase Decrease

OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease

1142000

USD

CY2012Q2

us-gaap

Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Period Increase Decrease

OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease

1428000

USD

us-gaap

Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Period Increase Decrease

OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease

2856000

USD

us-gaap

Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Period Increase Decrease

OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease

2284000

USD

CY2011Q2

us-gaap

Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease

OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease

743000

USD

CY2012Q2

us-gaap

Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease

OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease

929000

USD

us-gaap

Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease

OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease

1485000

USD

us-gaap

Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease

OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease

1857000

USD

CY2011Q2

us-gaap

Other Comprehensive Income Defined Benefit Plans Tax

OtherComprehensiveIncomeDefinedBenefitPlansTax

399000

USD

CY2012Q2

us-gaap

Other Comprehensive Income Defined Benefit Plans Tax

OtherComprehensiveIncomeDefinedBenefitPlansTax

499000

USD

us-gaap

Other Comprehensive Income Defined Benefit Plans Tax

OtherComprehensiveIncomeDefinedBenefitPlansTax

999000

USD

us-gaap

Other Comprehensive Income Defined Benefit Plans Tax

OtherComprehensiveIncomeDefinedBenefitPlansTax

799000

USD

CY2011Q2

us-gaap

Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax Effect

OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostTaxEffect

13000

USD

CY2012Q2

us-gaap

Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax Effect

OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostTaxEffect

13000

USD

us-gaap

Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax Effect

OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostTaxEffect

26000

USD

us-gaap

Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net

OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet

799000

USD

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses

173000

USD

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses

255000

USD

CY2011Q2

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment

0

USD

CY2012Q2

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment

0

USD

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment

0

USD

us-gaap

Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax Effect

OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostTaxEffect

26000

USD

CY2011Q2

us-gaap

Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax

OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax

2144000

USD

CY2012Q2

us-gaap

Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax

OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax

218000

USD

us-gaap

Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax

OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax

4577000

USD

us-gaap

Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax

OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax

7893000

USD

CY2012Q2

us-gaap

Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax

142000

USD

us-gaap

Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax

2975000

USD

CY2011Q2

us-gaap

Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax

1393000

USD

us-gaap

Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax

5130000

USD

CY2011Q2

us-gaap

Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax

OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax

751000

USD

CY2012Q2

us-gaap

Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax

OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax

76000

USD

us-gaap

Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax

OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax

1602000

USD

us-gaap

Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax

OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax

2763000

USD

CY2011Q2

us-gaap

Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Before Tax

OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax

-1104000

USD

CY2012Q2

us-gaap

Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Before Tax

OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax

-1391000

USD

us-gaap

Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Before Tax

OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax

-2781000

USD

us-gaap

Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Before Tax

OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax

-2209000

USD

us-gaap

Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax

OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax

-1808000

USD

CY2012Q2

us-gaap

Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax

OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax

-905000

USD

us-gaap

Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax

OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax

-1436000

USD

CY2011Q2

us-gaap

Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax

OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax

-718000

USD

CY2011Q2

us-gaap

Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax

OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax

-386000

USD

CY2012Q2

us-gaap

Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax

OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax

-486000

USD

us-gaap

Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax

OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax

-973000

USD

us-gaap

Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax

OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax

-773000

USD

us-gaap

Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax

OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

14938000

USD

CY2012Q2

us-gaap

Other Cost And Expense Operating

OtherCostAndExpenseOperating

5754000

USD

us-gaap

Other Cost And Expense Operating

OtherCostAndExpenseOperating

16347000

USD

CY2011Q2

us-gaap

Other Cost And Expense Operating

OtherCostAndExpenseOperating

5392000

USD

us-gaap

Other Cost And Expense Operating

OtherCostAndExpenseOperating

13883000

USD

us-gaap

Other General Expense

OtherGeneralExpense

10923000

USD

us-gaap

Other General Expense

OtherGeneralExpense

8849000

USD

CY2011Q2

us-gaap

Other General Expense

OtherGeneralExpense

3029000

USD

CY2012Q2

us-gaap

Other General Expense

OtherGeneralExpense

3191000

USD

CY2012Q2

us-gaap

Other Income

OtherIncome

2511000

USD

us-gaap

Other Income

OtherIncome

6044000

USD

CY2011Q2

us-gaap

Other Income

OtherIncome

2499000

USD

us-gaap

Other Income

OtherIncome

5379000

USD

CY2012Q2

us-gaap

Other Investments

OtherInvestments

125540000

USD

CY2011Q4

us-gaap

Other Investments

OtherInvestments

128301000

USD

CY2011Q4

us-gaap

Other Liabilities

OtherLiabilities

148569000

USD

CY2012Q2

us-gaap

Other Liabilities

OtherLiabilities

166222000

USD

CY2012Q2

us-gaap

Other Short Term Investments

OtherShortTermInvestments

135823000

USD

CY2011Q4

us-gaap

Other Short Term Investments

OtherShortTermInvestments

217044000

USD

CY2012Q2

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses

64000

USD

CY2011Q2

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses

28000

USD

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold

0

USD

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold

0

USD

CY2011Q2

us-gaap

Policyholder Benefits And Claims Incurred Gross

PolicyholderBenefitsAndClaimsIncurredGross

296963000

USD

us-gaap

Policyholder Benefits And Claims Incurred Gross

PolicyholderBenefitsAndClaimsIncurredGross

553654000

USD

CY2012Q2

us-gaap

Policyholder Benefits And Claims Incurred Gross

PolicyholderBenefitsAndClaimsIncurredGross

301451000

USD

us-gaap

Policyholder Benefits And Claims Incurred Gross

PolicyholderBenefitsAndClaimsIncurredGross

566367000

USD

CY2012Q2

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held