$MOH
MOLINA HEALTHCARE, INC. Stock $moh

$moh Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-K Financial Statement

#000144530513000387 Filed on February 28, 2013

Income Statement

Concept	2012 Q4	2012	2011 Q4
Revenue	$1.578B	$5.914B	$1.306B
YoY Change	20.79%	30.26%	20.87%
Cost Of Revenue	$1.319B	$141.0M	$1.077B
YoY Change	22.46%	-2.08%	19.75%
Gross Profit	$259.1M	$5.773B	$229.5M
YoY Change	12.9%	31.32%	26.45%
Gross Profit Margin	16.42%	97.61%	17.57%
Selling, General & Admin	$191.1M	$678.0M	$168.9M
YoY Change	13.14%	23.72%	24.56%
% of Gross Profit	73.76%	11.74%	73.59%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$20.50M	$78.76M	$22.00M
YoY Change	-6.82%	5.89%	8.37%
% of Gross Profit	7.91%	1.36%	9.59%
Operating Expenses	$207.3M	$5.732B	$181.0M
YoY Change	14.53%	34.55%	22.3%
Operating Profit	$54.13M	$41.09M	-$16.10M
YoY Change	-436.17%	-69.74%	-148.07%
Interest Expense	-$4.300M	$16.77M	-$3.900M
YoY Change	10.26%	8.05%	11.43%
% of Operating Profit	-7.94%	40.81%
Other Income/Expense, Net	$300.0K	$945.0K	$0.00
YoY Change
Pretax Income	$50.15M	$23.38M	-$19.96M
YoY Change	-351.28%	-80.57%	-166.52%
Income Tax	$21.60M	$10.51M	$13.00M
% Of Pretax Income	43.07%	44.97%
Net Earnings	$25.64M	$9.790M	-$32.96M
YoY Change	-177.8%	-52.97%	-287.27%
Net Earnings / Revenue	1.63%	0.17%	-2.52%
Basic Earnings Per Share	$0.55	$0.21	-$0.72
Diluted Earnings Per Share	$0.54	$0.21	-$720.00
COMMON SHARES
Basic Shares Outstanding	46.58M shares	46.38M shares
Diluted Shares Outstanding		47.00M shares

Balance Sheet

Concept	2012 Q4	2012	2011 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.139B	$1.139B	$830.7M
YoY Change	37.07%	37.07%	10.57%
Cash & Equivalents	$796.0M	$795.8M	$493.8M
Short-Term Investments	$342.8M	$342.8M	$336.9M
Other Short-Term Assets	$28.39M	$60.80M	$19.44M
YoY Change	46.06%	61.27%	-52.37%
Inventory
Prepaid Expenses
Receivables	$149.7M	$149.7M	$167.9M
Other Receivables	$0.00	$0.00	$11.70M
Total Short-Term Assets	$1.349B	$1.349B	$1.048B
YoY Change	28.72%	28.72%	9.15%
LONG-TERM ASSETS
Property, Plant & Equipment	$221.4M	$221.4M	$190.9M
YoY Change	15.98%	15.98%	89.98%
Goodwill	$151.1M		$154.0M
YoY Change	-1.86%
Intangibles
YoY Change
Long-Term Investments	$13.40M	$13.40M	$3.900M
YoY Change	243.59%	-16.77%	-80.88%
Other Assets	$19.62M	$122.0M	$17.10M
YoY Change	14.75%	3.57%	-80.02%
Total Long-Term Assets	$585.7M	$585.7M	$604.1M
YoY Change	-3.04%	-3.03%	10.03%
TOTAL ASSETS
Total Short-Term Assets	$1.349B	$1.349B	$1.048B
Total Long-Term Assets	$585.7M	$585.7M	$604.1M
Total Assets	$1.935B	$1.935B	$1.652B
YoY Change	17.11%	17.11%	9.47%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$184.0M	$184.0M	$147.2M
YoY Change	25.0%	25.0%	6.74%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$1.155M	$1.200M	$1.197M
YoY Change	-3.51%	0.0%
Total Short-Term Liabilities	$828.0M	$828.0M	$601.8M
YoY Change	37.59%	37.59%	6.43%
LONG-TERM LIABILITIES
Long-Term Debt	$261.8M	$261.8M	$216.9M
YoY Change	20.68%	20.7%	32.27%
Other Long-Term Liabilities	$23.48M	$24.80M	$21.78M
YoY Change	7.8%	-45.13%	-50.94%
Total Long-Term Liabilities	$285.3M	$286.6M	$238.7M
YoY Change	19.5%	9.35%	14.54%
TOTAL LIABILITIES
Total Short-Term Liabilities	$828.0M	$828.0M	$601.8M
Total Long-Term Liabilities	$285.3M	$286.6M	$238.7M
Total Liabilities	$1.153B	$1.153B	$897.1M
YoY Change	28.47%	28.47%	13.52%
SHAREHOLDERS EQUITY
Retained Earnings	$500.2M		$490.4M
YoY Change	2.0%
Common Stock	$285.5M		$266.0M
YoY Change	7.33%		5.73%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$3.000M		$0.00
YoY Change
Treasury Stock Shares	111.0K shares
Shareholders Equity	$782.3M	$782.3M	$755.1M
YoY Change
Total Liabilities & Shareholders Equity	$1.935B	$1.935B	$1.652B
YoY Change	17.11%	17.11%	9.47%

Cashflow Statement

Concept	2012 Q4	2012	2011 Q4
OPERATING ACTIVITIES
Net Income	$25.64M	$9.790M	-$32.96M
YoY Change	-177.8%	-52.97%	-287.27%
Depreciation, Depletion And Amortization	$20.50M	$78.76M	$22.00M
YoY Change	-6.82%	5.89%	8.37%
Cash From Operating Activities	$83.80M	$347.8M	$70.20M
YoY Change	19.37%	54.3%	-53.79%
INVESTING ACTIVITIES
Capital Expenditures	-$25.60M	-$78.10M	-$14.70M
YoY Change	74.15%	28.88%	-11.45%
Acquisitions		$0.00
YoY Change		-100.0%
Other Investing Activities	$22.80M	-$15.40M	-$99.60M
YoY Change	-122.89%	-91.26%	-7.61%
Cash From Investing Activities	-$2.800M	-$93.58M	-$114.2M
YoY Change	-97.55%	-60.5%	-8.2%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$3.000M
YoY Change		-57.14%
Debt Paid & Issued, Net		$1.129M
YoY Change
Cash From Financing Activities	-700.0K	$47.74M	50.40M
YoY Change	-101.39%	-3.5%	2552.63%
NET CHANGE
Cash From Operating Activities	83.80M	$347.8M	70.20M
Cash From Investing Activities	-2.800M	-$93.58M	-114.2M
Cash From Financing Activities	-700.0K	$47.74M	50.40M
Net Change In Cash	80.30M	$301.9M	6.400M
YoY Change	1154.69%	695.82%	-78.23%
FREE CASH FLOW
Cash From Operating Activities	$83.80M	$347.8M	$70.20M
Capital Expenditures	-$25.60M	-$78.10M	-$14.70M
Free Cash Flow	$109.4M	$425.9M	$84.90M
YoY Change	28.86%	48.91%	-49.61%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	1611000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	0	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	15381000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	14541000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	2936000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	1292000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve	4139000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve	15675000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	-316000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	-283000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance Noncurrent DeferredTaxAssetsValuationAllowanceNoncurrent	2383000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance Noncurrent DeferredTaxAssetsValuationAllowanceNoncurrent	2927000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	0	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	-223000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	5410000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	7604000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	33127000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	37900000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	278000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	-702000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	39939000	USD
CY2010	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	5900000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	10700000	USD
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	8500000	USD
CY2012	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.04
CY2010	us-gaap	Depreciation And Amortization DepreciationAndAmortization	45704000	USD
CY2012	us-gaap	Depreciation And Amortization DepreciationAndAmortization	63704000	USD
CY2011	us-gaap	Depreciation And Amortization DepreciationAndAmortization	50690000	USD
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	60765000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	78764000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	74383000	USD
CY2012Q4	us-gaap	Derivative Financial Instruments Liabilities Fair Value Disclosure DerivativeFinancialInstrumentsLiabilitiesFairValueDisclosure	1307000	USD
CY2011Q4	us-gaap	Derivative Financial Instruments Liabilities Fair Value Disclosure DerivativeFinancialInstrumentsLiabilitiesFairValueDisclosure	0	USD
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.39
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.07
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.80
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.21
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.34
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.45
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.07
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.39
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	550
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.80
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.38
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.38
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.72
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.41
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.21
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.32
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.45
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	540
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.38
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-720
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.41
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.38
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.678
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.486
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.386
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Charitable Contributions EffectiveIncomeTaxRateReconciliationNondeductibleExpenseCharitableContributions	0.011
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Charitable Contributions EffectiveIncomeTaxRateReconciliationNondeductibleExpenseCharitableContributions	0.052
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Charitable Contributions EffectiveIncomeTaxRateReconciliationNondeductibleExpenseCharitableContributions	0.007
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0.317
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0.000
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0.000
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.010
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.076
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.012
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.001
CY2012Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	15100000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y1M6D
CY2011Q4	us-gaap	Equity Method Investments EquityMethodInvestments	3900000	USD
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.000
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.039
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.006
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.015
CY2010	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.021
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.078
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.006
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	3667000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	295000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1651000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	526000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	714000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	968000	USD
CY2010	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	159916000	USD
CY2011	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	81256000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	98586000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	118361000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	17900000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	9300000	USD
CY2012	us-gaap	Health Care Organization Health Care Costs Gross HealthCareOrganizationHealthCareCostsGross	5096760000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	9400000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	12100000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	17000000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	196072000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	200382000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	101796000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	77711000	USD
CY2012	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	1747000	USD
CY2012	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-2608000	USD
CY2010	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
CY2011	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
CY2012	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	1747000	USD
CY2011	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	0	USD
CY2010	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	0	USD
CY2011	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	415932000	USD
CY2012	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	532627000	USD
CY2010	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	345993000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	151088000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	153954000	USD
CY2012	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2011	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	64575000	USD
CY2010	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2011Q4	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	64575000	USD
CY2012Q4	us-gaap	Goodwill Gross GoodwillGross	209618000	USD
CY2011Q4	us-gaap	Goodwill Gross GoodwillGross	212484000	USD
CY2011Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	58530000	USD
CY2012Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	58530000	USD
CY2011	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	58500000	USD
CY2011Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	58500000	USD
CY2010	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2012	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2012	us-gaap	Goodwill Other Changes GoodwillOtherChanges	2866000	USD
CY2010	us-gaap	Health Care Organization Health Care Costs Gross HealthCareOrganizationHealthCareCostsGross	3370857000	USD
CY2011	us-gaap	Health Care Organization Health Care Costs Gross HealthCareOrganizationHealthCareCostsGross	3859994000	USD
CY2011	us-gaap	Health Care Organization Medical Supplies And Drugs Expense HealthCareOrganizationMedicalSuppliesAndDrugsExpense	418007000	USD
CY2012	us-gaap	Health Care Organization Medical Supplies And Drugs Expense HealthCareOrganizationMedicalSuppliesAndDrugsExpense	835830000	USD
CY2010	us-gaap	Health Care Organization Medical Supplies And Drugs Expense HealthCareOrganizationMedicalSuppliesAndDrugsExpense	325935000	USD
CY2010	us-gaap	Health Care Organization Premium Revenue HealthCareOrganizationPremiumRevenue	3989909000	USD
CY2011	us-gaap	Health Care Organization Premium Revenue HealthCareOrganizationPremiumRevenue	4603407000	USD
CY2012	us-gaap	Health Care Organization Premium Revenue HealthCareOrganizationPremiumRevenue	5826491000	USD
CY2012Q1	us-gaap	Health Care Organization Premium Revenue HealthCareOrganizationPremiumRevenue	1327449000	USD
CY2012Q3	us-gaap	Health Care Organization Premium Revenue HealthCareOrganizationPremiumRevenue	1488718000	USD
CY2012Q2	us-gaap	Health Care Organization Premium Revenue HealthCareOrganizationPremiumRevenue	1492272000	USD
CY2012Q4	us-gaap	Health Care Organization Premium Revenue HealthCareOrganizationPremiumRevenue	1518052000	USD
CY2011Q4	us-gaap	Health Care Organization Premium Revenue HealthCareOrganizationPremiumRevenue	1254969000	USD
CY2011Q3	us-gaap	Health Care Organization Premium Revenue HealthCareOrganizationPremiumRevenue	1138230000	USD
CY2011Q2	us-gaap	Health Care Organization Premium Revenue HealthCareOrganizationPremiumRevenue	1128770000	USD
CY2011Q1	us-gaap	Health Care Organization Premium Revenue HealthCareOrganizationPremiumRevenue	1081438000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	4368000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	4368000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities Fair Value HeldToMaturitySecuritiesDebtMaturitiesFairValue	44106000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmount	44101000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	39738000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	39733000	USD
CY2011Q4	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	6100000	USD
CY2010	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2012	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	89492000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	19065000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	64654000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	50146000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	29122000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-63075000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	2872000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	27697000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	29186000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	27727000	USD
CY2011Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-19956000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	43836000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9275000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34522000	USD
CY2012Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	0	USD
CY2011Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	11679000	USD
CY2010	us-gaap	Income Taxes Paid IncomeTaxesPaid	18299000	USD
CY2012	us-gaap	Income Taxes Paid IncomeTaxesPaid	-4634000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	54663000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	23345000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	2778000	USD
CY2010	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	40482000	USD
CY2012	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	18172000	USD
CY2010	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	19258000	USD
CY2011	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-24855000	USD
CY2011	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-13836000	USD
CY2012	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	9887000	USD
CY2010	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	4092000	USD
CY2012	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	90851000	USD
CY2010	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-41899000	USD
CY2011	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-8154000	USD
CY2011	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	0	USD
CY2012	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	-1307000	USD
CY2010	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	0	USD
CY2012	us-gaap	Increase Decrease In Health Care Insurance Liabilities IncreaseDecreaseInHealthCareInsuranceLiabilities	92054000	USD
CY2011	us-gaap	Increase Decrease In Health Care Insurance Liabilities IncreaseDecreaseInHealthCareInsuranceLiabilities	48120000	USD
CY2010	us-gaap	Increase Decrease In Health Care Insurance Liabilities IncreaseDecreaseInHealthCareInsuranceLiabilities	34363000	USD
CY2010	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	-5108000	USD
CY2011	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	1898000	USD
CY2012	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	1913000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	8958000	USD
CY2010	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	12034000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-3308000	USD
CY2012	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-18216000	USD
CY2011	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-352000	USD
CY2010	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	7539000	USD
CY2012	us-gaap	Increase Decrease Of Restricted Investments IncreaseDecreaseOfRestrictedInvestments	2647000	USD
CY2011	us-gaap	Increase Decrease Of Restricted Investments IncreaseDecreaseOfRestrictedInvestments	4064000	USD
CY2010	us-gaap	Increase Decrease Of Restricted Investments IncreaseDecreaseOfRestrictedInvestments	5566000	USD
CY2010	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	6259000	USD
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	669000	shares
CY2010	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	457000	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	619000	shares
CY2011	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	5539000	USD
CY2012	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	5188000	USD
CY2011	us-gaap	Interest Expense InterestExpense	15519000	USD
CY2012	us-gaap	Interest Expense InterestExpense	16769000	USD
CY2010	us-gaap	Interest Expense InterestExpense	15509000	USD
CY2012	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	-6746000	USD
CY2011	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	-7242000	USD
CY2012	us-gaap	Interest Expense Debt InterestExpenseDebt	12954000	USD
CY2011	us-gaap	Interest Expense Debt InterestExpenseDebt	12524000	USD
CY2010	us-gaap	Interest Expense Debt InterestExpenseDebt	12126000	USD
CY2011	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	7012000	USD
CY2012	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	7012000	USD
CY2010	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	7012000	USD
CY2010	us-gaap	Interest Paid InterestPaid	10951000	USD
CY2012	us-gaap	Interest Paid InterestPaid	10099000	USD
CY2011	us-gaap	Interest Paid InterestPaid	11399000	USD
CY2010	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	-2029000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	1152508000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	897073000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1652146000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1934822000	USD
CY2011	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	-1045000	USD
CY2010	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	24450000	USD
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	601834000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	828037000	USD
CY2011Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	402476000	USD
CY2012Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	494530000	USD
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	274471000	USD
CY2011Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1197000	USD
CY2012Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1155000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	41170000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1155000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	1372000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	41309000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1259000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	188206000	USD
CY2011Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	216929000	USD
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	261784000	USD
CY2011Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	336916000	USD
CY2012Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	342845000	USD
CY2011Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	16134000	USD
CY2012Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	13419000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	113811000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	49473000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	47743000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-236927000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-288823000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-93584000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	347784000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	225395000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	161397000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	9790000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	20818000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	54970000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	-37306000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	25643000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	3364000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	18089000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	17388000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	17440000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	18950000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	-32960000	USD
CY2012	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segments
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	80173000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	35473000	USD
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	105001000	USD
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-59267000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	7187000	USD
CY2012Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	33420000	USD
CY2012Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	54133000	USD
CY2011Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	31300000	USD
CY2011Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-16103000	USD
CY2011Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	31410000	USD
CY2011Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	33566000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	86276000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	26866000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	6939000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	8472000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	14808000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	21420000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	7771000	USD
CY2012	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	9374000	USD
CY2011	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	547000	USD
CY2010	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	0	USD
CY2010	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	25100000	USD
CY2012	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	20500000	USD
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	23100000	USD
CY2011Q4	us-gaap	Other Assets Current OtherAssetsCurrent	19435000	USD
CY2012Q4	us-gaap	Other Assets Current OtherAssetsCurrent	28386000	USD
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	17099000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	19621000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	787000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-380000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	948000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	380000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-233000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	581000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	1529000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-613000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	1167000	USD
CY2011	us-gaap	Other Income OtherIncome	0	USD
CY2012	us-gaap	Other Income OtherIncome	361000	USD
CY2010	us-gaap	Other Income OtherIncome	0	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	24787000	USD
CY2011Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	21782000	USD
CY2010	us-gaap	Other Noncash Income OtherNoncashIncome	-3807000	USD
CY2012	us-gaap	Other Noncash Income OtherNoncashIncome	0	USD
CY2011	us-gaap	Other Noncash Income OtherNoncashIncome	0	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-16408000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-15519000	USD
CY2010	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-15509000	USD
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7000000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3000000	USD
CY2011	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1125000	USD
CY2012	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2010	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1671000	USD
CY2010	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	130743000	USD
CY2011	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	84253000	USD
CY2012	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2011	us-gaap	Payments To Acquire Machinery And Equipment PaymentsToAcquireMachineryAndEquipment	60581000	USD
CY2012	us-gaap	Payments To Acquire Machinery And Equipment PaymentsToAcquireMachineryAndEquipment	78145000	USD
CY2010	us-gaap	Payments To Acquire Machinery And Equipment PaymentsToAcquireMachineryAndEquipment	48538000	USD
CY2011	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	345968000	USD
CY2010	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	302842000	USD
CY2012	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	306437000	USD
CY2012	us-gaap	Payments To Acquire Projects PaymentsToAcquireProjects	11610000	USD
CY2010	us-gaap	Payments To Acquire Projects PaymentsToAcquireProjects	29319000	USD
CY2011	us-gaap	Payments To Acquire Projects PaymentsToAcquireProjects	42830000	USD
CY2010	us-gaap	Policyholder Benefits And Claims Incurred Health Care PolicyholderBenefitsAndClaimsIncurredHealthCare	3370857000	USD
CY2011	us-gaap	Policyholder Benefits And Claims Incurred Health Care PolicyholderBenefitsAndClaimsIncurredHealthCare	3859994000	USD
CY2012	us-gaap	Policyholder Benefits And Claims Incurred Health Care PolicyholderBenefitsAndClaimsIncurredHealthCare	5096760000	USD
CY2011Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2011Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2011Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2011Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2011Q4	us-gaap	Preferred Stock Value PreferredStockValue		USD
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue		USD
CY2012	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	-9162000	USD
CY2012	us-gaap	Proceeds From Divestiture Of Interest In Consolidated Subsidiaries ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries	9162000	USD
CY2010	us-gaap	Proceeds From Divestiture Of Interest In Consolidated Subsidiaries ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries	0	USD
CY2011	us-gaap	Proceeds From Divestiture Of Interest In Consolidated Subsidiaries ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries	0	USD
CY2010	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	111131000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2010	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	48600000	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2010	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	4056000	USD
CY2011	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	7347000	USD
CY2012	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	8205000	USD
CY2011	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	0	USD
CY2010	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	105000000	USD
CY2012	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	60000000	USD
CY2011	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	302700000	USD
CY2012	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	298000000	USD
CY2010	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	182300000	USD
CY2011	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	302667000	USD
CY2012	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	298006000	USD
CY2010	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	223077000	USD
CY2012	us-gaap	Property Plant And Equipment Estimated Useful Lives PropertyPlantAndEquipmentEstimatedUsefulLives	3 years
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	319384000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	392500000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	190934000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	221443000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Owned Accumulated Depreciation PropertyPlantAndEquipmentOwnedAccumulatedDepreciation	65518000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Owned Accumulated Depreciation PropertyPlantAndEquipmentOwnedAccumulatedDepreciation	84156000	USD
CY2011	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	367000	USD
CY2012	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	293000	USD
CY2010	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	110000	USD
CY2011Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	167898000	USD
CY2012Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	149682000	USD
CY2012Q4	us-gaap	Reinsurance Payable ReinsurancePayable	0	USD
CY2011Q4	us-gaap	Reinsurance Payable ReinsurancePayable	23401000	USD
CY2011Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	23401000	USD
CY2012Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	0	USD
CY2010	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1129000	USD
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2011	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	0	USD
CY2012	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	20000000	USD
CY2010	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	105000000	USD
CY2011Q4	us-gaap	Restricted Cash And Investments Current RestrictedCashAndInvestmentsCurrent	23600000	USD
CY2012Q4	us-gaap	Restricted Cash And Investments Current RestrictedCashAndInvestmentsCurrent	46900000	USD
CY2011Q4	us-gaap	Restricted Investments Noncurrent RestrictedInvestmentsNoncurrent	46164000	USD
CY2012Q4	us-gaap	Restricted Investments Noncurrent RestrictedInvestmentsNoncurrent	44101000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	490410000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	500200000	USD
CY2012	us-gaap	Revenues Revenues	6028763000	USD
CY2010	us-gaap	Revenues Revenues	4085977000	USD
CY2011	us-gaap	Revenues Revenues	4769940000	USD
CY2012Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	399061	shares
CY2012Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	414061	shares
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2012Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	2204000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	17052000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	9531000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	20018000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.430
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.011
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	399061	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	21.93
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	750	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	15000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	13.97
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2204000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	414061	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	553049	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.39
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.91
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	2204000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	414061	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	22.39
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	18.27
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	22.37
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	34.82
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y1M6D
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y3M18D
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P3Y3M18D
CY2009Q4	us-gaap	Shares Outstanding SharesOutstanding	38410000	shares
CY2010Q4	us-gaap	Shares Outstanding SharesOutstanding	45463000	shares
CY2011Q4	us-gaap	Shares Outstanding SharesOutstanding	45815000	shares
CY2012Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Estimated Range Of Change Upper Bound SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeUpperBound	8600000	USD
CY2012Q4	us-gaap	Statutory Accounting Practices Statutory Capital And Surplus Balance StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance	557900000	USD
CY2012Q4	us-gaap	Statutory Accounting Practices Statutory Capital And Surplus Required StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired	345700000	USD
CY2012	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	277400	shares
CY2011	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	201700	shares
CY2012	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	1057000	shares
CY2012	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	153238	shares
CY2010	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	111131000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	20474000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	16362000	USD
CY2010	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	11271000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	755073000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	782314000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	719057000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	782314000	USD
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	542738000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	755073000	USD
CY2011	us-gaap	Supplemental Deferred Purchase Price SupplementalDeferredPurchasePrice	1952000	USD
CY2010	us-gaap	Supplemental Deferred Purchase Price SupplementalDeferredPurchasePrice	-4723000	USD
CY2012Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	6000000	USD
CY2012	us-gaap	Technology Services Costs TechnologyServicesCosts	141208000	USD
CY2011	us-gaap	Technology Services Costs TechnologyServicesCosts	143987000	USD
CY2010	us-gaap	Technology Services Costs TechnologyServicesCosts	78647000	USD
CY2011	us-gaap	Technology Services Revenue TechnologyServicesRevenue	160447000	USD
CY2012	us-gaap	Technology Services Revenue TechnologyServicesRevenue	187710000	USD
CY2010	us-gaap	Technology Services Revenue TechnologyServicesRevenue	89809000	USD
CY2012Q4	us-gaap	Technology Services Revenue TechnologyServicesRevenue	55359000	USD
CY2012Q3	us-gaap	Technology Services Revenue TechnologyServicesRevenue	48422000	USD
CY2012Q2	us-gaap	Technology Services Revenue TechnologyServicesRevenue	41724000	USD
CY2012Q1	us-gaap	Technology Services Revenue TechnologyServicesRevenue	42205000	USD
CY2011Q4	us-gaap	Technology Services Revenue TechnologyServicesRevenue	49157000	USD
CY2011Q1	us-gaap	Technology Services Revenue TechnologyServicesRevenue	36674000	USD
CY2011Q3	us-gaap	Technology Services Revenue TechnologyServicesRevenue	37728000	USD
CY2011Q2	us-gaap	Technology Services Revenue TechnologyServicesRevenue	36888000	USD
CY2012	us-gaap	Trading Securities Unrealized Holding Gain Loss TradingSecuritiesUnrealizedHoldingGainLoss	0	USD
CY2011	us-gaap	Trading Securities Unrealized Holding Gain Loss TradingSecuritiesUnrealizedHoldingGainLoss	0	USD
CY2010	us-gaap	Trading Securities Unrealized Holding Gain Loss TradingSecuritiesUnrealizedHoldingGainLoss	4170000	USD
CY2011	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	0	USD
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	111000	shares
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	3000000	USD
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	0	USD
CY2012	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	3000000	USD
CY2011	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	7000000	USD
CY2011	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	1167000	USD
CY2012	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	1529000	USD
CY2010	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-613000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10962000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10712000	USD
CY2009Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4128000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10622000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	320000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	65000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	56000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	82000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	-441000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	-6891000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	-137000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	57000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	211000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	387000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Resulting In Net Operating Loss Carryforward UnrecognizedTaxBenefitsResultingInNetOperatingLossCarryforward	3000000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	7400000	USD
CY2012Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	3000000	USD
CY2011Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	2927000	USD
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41631	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	46425	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	47000	shares
CY2010	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	0	shares
CY2011	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	-160000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	-2000	shares
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41174	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	46380	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45756	shares
CY2010	moh	Amount Of Current Year Quality Incentive Premium Revenue Recognized AmountOfCurrentYearQualityIncentivePremiumRevenueRecognized	6196000	USD
CY2012	moh	Amount Of Current Year Quality Incentive Premium Revenue Recognized AmountOfCurrentYearQualityIncentivePremiumRevenueRecognized	62489000	USD
CY2011	moh	Amount Of Current Year Quality Incentive Premium Revenue Recognized AmountOfCurrentYearQualityIncentivePremiumRevenueRecognized	10463000	USD
CY2010	moh	Amount Of Quality Incentive Premium Revenue Recognized From Prior Year AmountOfQualityIncentivePremiumRevenueRecognizedFromPriorYear	-669000	USD
CY2012	moh	Amount Of Quality Incentive Premium Revenue Recognized From Prior Year AmountOfQualityIncentivePremiumRevenueRecognizedFromPriorYear	2202000	USD
CY2011	moh	Amount Of Quality Incentive Premium Revenue Recognized From Prior Year AmountOfQualityIncentivePremiumRevenueRecognizedFromPriorYear	3879000	USD
CY2012Q4	moh	Anticipated Medicare Risk Adjustment Premiums AnticipatedMedicareRiskAdjustmentPremiums	300000	USD
CY2011Q4	moh	Anticipated Medicare Risk Adjustment Premiums AnticipatedMedicareRiskAdjustmentPremiums	5000000	USD
CY2012	moh	Average Maturity Of Investments AverageMaturityOfInvestments	two years or less
CY2011Q4	moh	Concentration Of Credit Risk ConcentrationOfCreditRisk	209000000	USD
CY2012Q4	moh	Concentration Of Credit Risk ConcentrationOfCreditRisk	428000000	USD
CY2010	moh	Cost Of Services Amortization Of Capitalized Software CostOfServicesAmortizationOfCapitalizedSoftware	6745000	USD
CY2012	moh	Cost Of Services Amortization Of Capitalized Software CostOfServicesAmortizationOfCapitalizedSoftware	13489000	USD
CY2011	moh	Cost Of Services Amortization Of Capitalized Software CostOfServicesAmortizationOfCapitalizedSoftware	16871000	USD
CY2012	moh	Current Year Components Of Incurred Medical Care Costs CurrentYearComponentsOfIncurredMedicalCareCosts	5136055000	USD
CY2010	moh	Current Year Components Of Incurred Medical Care Costs CurrentYearComponentsOfIncurredMedicalCareCosts	3420235000	USD
CY2011	moh	Current Year Components Of Incurred Medical Care Costs CurrentYearComponentsOfIncurredMedicalCareCosts	3911803000	USD
CY2011	moh	Current Year Payments For Medical Care Costs CurrentYearPaymentsForMedicalCareCosts	3516994000	USD
CY2010	moh	Current Year Payments For Medical Care Costs CurrentYearPaymentsForMedicalCareCosts	3085388000	USD
CY2012	moh	Current Year Payments For Medical Care Costs CurrentYearPaymentsForMedicalCareCosts	4649363000	USD
CY2012	moh	Deferred Compensation Plan Deferral Percentage Of Basic Salary DeferredCompensationPlanDeferralPercentageOfBasicSalary	1.00
CY2012	moh	Deferred Compensation Plan Deferral Percentage Of Bonus DeferredCompensationPlanDeferralPercentageOfBonus	1.00
CY2012	moh	Deferred Financing Costs Convertible Senior Notes DeferredFinancingCostsConvertibleSeniorNotes	P7Y
CY2012	moh	Deferred Financing Costs Credit Facility DeferredFinancingCostsCreditFacility	P5Y
CY2011Q4	moh	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Prepaid Expenses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsPrepaidExpenses	-3032000	USD
CY2012Q4	moh	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Prepaid Expenses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsPrepaidExpenses	-4390000	USD
CY2012Q4	moh	Deferred Tax Liabilities Deferred Compensation DeferredTaxLiabilitiesDeferredCompensation	-3323000	USD
CY2011Q4	moh	Deferred Tax Liabilities Deferred Compensation DeferredTaxLiabilitiesDeferredCompensation	-7904000	USD
CY2012Q4	moh	Deferred Tax Liabilities Operating Losses DeferredTaxLiabilitiesOperatingLosses	-3341000	USD
CY2011Q4	moh	Deferred Tax Liabilities Operating Losses DeferredTaxLiabilitiesOperatingLosses	-2694000	USD
CY2012Q4	moh	Deferred Tax Liabilities Reserve Liabilities DeferredTaxLiabilitiesReserveLiabilities	-2013000	USD
CY2011Q4	moh	Deferred Tax Liabilities Reserve Liabilities DeferredTaxLiabilitiesReserveLiabilities	-3015000	USD
CY2012Q4	moh	Deferred Tax Liabilities State Taxes DeferredTaxLiabilitiesStateTaxes	-4149000	USD
CY2011Q4	moh	Deferred Tax Liabilities State Taxes DeferredTaxLiabilitiesStateTaxes	-2609000	USD
CY2012Q4	moh	Deferred Tax Liabilities Unrealized Losses DeferredTaxLiabilitiesUnrealizedLosses	-563000	USD
CY2011Q4	moh	Deferred Tax Liabilities Unrealized Losses DeferredTaxLiabilitiesUnrealizedLosses	-1176000	USD
CY2010	moh	Denominator For Basic Earnings Per Share DenominatorForBasicEarningsPerShare	41174000	shares
CY2012	moh	Denominator For Basic Earnings Per Share DenominatorForBasicEarningsPerShare	46380000	shares
CY2011	moh	Denominator For Basic Earnings Per Share DenominatorForBasicEarningsPerShare	45756000	shares
CY2010	moh	Denominator For Diluted Earnings Per Share DenominatorForDilutedEarningsPerShare	41631000	shares
CY2011	moh	Denominator For Diluted Earnings Per Share DenominatorForDilutedEarningsPerShare	46425000	shares
CY2012	moh	Denominator For Diluted Earnings Per Share DenominatorForDilutedEarningsPerShare	46999000	shares
CY2010	moh	Depreciation And Amortization Of Capitalized Software DepreciationAndAmortizationOfCapitalizedSoftware	27230000	USD
CY2012	moh	Depreciation And Amortization Of Capitalized Software DepreciationAndAmortizationOfCapitalizedSoftware	43201000	USD
CY2011	moh	Depreciation And Amortization Of Capitalized Software DepreciationAndAmortizationOfCapitalizedSoftware	30864000	USD
CY2012Q4	moh	Health Plans Segment Receivables HealthPlansSegmentReceivables	127098000	USD
CY2012	moh	Depreciation And Amortization Reported As Such In Consolidated Statements Of Income DepreciationAndAmortizationReportedAsSuchInConsolidatedStatementsOfIncome	63704000	USD
CY2011	moh	Depreciation And Amortization Reported As Such In Consolidated Statements Of Income DepreciationAndAmortizationReportedAsSuchInConsolidatedStatementsOfIncome	50690000	USD
CY2010	moh	Depreciation And Amortization Reported As Such In Consolidated Statements Of Income DepreciationAndAmortizationReportedAsSuchInConsolidatedStatementsOfIncome	45704000	USD
CY2012	moh	Divestiture Of Business Decrease In Carrying Value Of Assets DivestitureOfBusinessDecreaseInCarryingValueOfAssets	30942000	USD
CY2012	moh	Divestiture Of Business Decrease In Carrying Value Of Liabilities DivestitureOfBusinessDecreaseInCarryingValueOfLiabilities	23527000	USD
CY2011	moh	Effective Income Tax Rate Reconciliation Purchase Accounting Adjustment Percent EffectiveIncomeTaxRateReconciliationPurchaseAccountingAdjustmentPercent	-0.015
CY2012	moh	Effective Income Tax Reconciliation Change In Fair Value Of Contingent Consideration EffectiveIncomeTaxReconciliationChangeInFairValueOfContingentConsideration	0.059
CY2012	moh	Federal Reimbursement Of Medicaid Management Information Systems Cost Percentage FederalReimbursementOfMedicaidManagementInformationSystemsCostPercentage	0.75
CY2012	moh	Final Maturities Of Investments FinalMaturitiesOfInvestments	five years or less
CY2011Q4	moh	Goodwill And Intangible Assets Net GoodwillAndIntangibleAssetsNet	255750000	USD
CY2012Q4	moh	Goodwill And Intangible Assets Net GoodwillAndIntangibleAssetsNet	228799000	USD
CY2011	moh	Health Care Organization Expenses Capitation Costs HealthCareOrganizationExpensesCapitationCosts	518835000	USD
CY2010	moh	Health Care Organization Expenses Capitation Costs HealthCareOrganizationExpensesCapitationCosts	555487000	USD
CY2012	moh	Health Care Organization Expenses Capitation Costs HealthCareOrganizationExpensesCapitationCosts	557087000	USD
CY2011	moh	Health Care Organization Expenses Other Costs HealthCareOrganizationExpensesOtherCosts	158843000	USD
CY2010	moh	Health Care Organization Expenses Other Costs HealthCareOrganizationExpensesOtherCosts	128577000	USD
CY2012	moh	Health Care Organization Expenses Other Costs HealthCareOrganizationExpensesOtherCosts	181883000	USD
CY2012	moh	Health Care Organization Expenses Servicing Cost HealthCareOrganizationExpensesServicingCost	3521960000	USD
CY2010	moh	Health Care Organization Expenses Servicing Cost HealthCareOrganizationExpensesServicingCost	2360858000	USD
CY2011	moh	Health Care Organization Expenses Servicing Cost HealthCareOrganizationExpensesServicingCost	2764309000	USD
CY2012Q4	moh	Health Plans In Number Of States HealthPlansInNumberOfStates	9
CY2011Q4	moh	Health Plans Segment Receivables HealthPlansSegmentReceivables	121776000	USD
CY2011	moh	Impairment Effect On Earnings Per Share After Tax ImpairmentEffectOnEarningsPerShareAfterTax	1.34
CY2012	moh	Initial Terms Of Employment Agreements Maximum InitialTermsOfEmploymentAgreementsMaximum	P3Y
CY2012	moh	Initial Terms Of Employment Agreements Minimum InitialTermsOfEmploymentAgreementsMinimum	P1Y
CY2012	moh	Percentage Of Capitation PercentageOfCapitation	0.109
CY2011	moh	Percentage Of Capitation PercentageOfCapitation	0.134
CY2010	moh	Percentage Of Capitation PercentageOfCapitation	0.165
CY2010	moh	Percentage Of Fee For Service PercentageOfFeeForService	0.700
CY2012	moh	Percentage Of Fee For Service PercentageOfFeeForService	0.691
CY2011	moh	Percentage Of Fee For Service PercentageOfFeeForService	0.716
CY2011Q4	moh	Liability For Claims And Claims Adjustment Expense Health LiabilityForClaimsAndClaimsAdjustmentExpenseHealth	402476000	USD
CY2012Q4	moh	Liability For Claims And Claims Adjustment Expense Health LiabilityForClaimsAndClaimsAdjustmentExpenseHealth	494530000	USD
CY2009Q4	moh	Liability For Claims And Claims Adjustment Expense Health LiabilityForClaimsAndClaimsAdjustmentExpenseHealth	315316000	USD
CY2010Q4	moh	Liability For Claims And Claims Adjustment Expense Health LiabilityForClaimsAndClaimsAdjustmentExpenseHealth	354356000	USD
CY2012	moh	Maturity Of Cash And Cash Equivalents MaturityOfCashAndCashEquivalents	three months or less
CY2010	moh	Maximum Available Quality Incentive Premium Current Year MaximumAvailableQualityIncentivePremiumCurrentYear	14233000	USD
CY2012	moh	Maximum Available Quality Incentive Premium Current Year MaximumAvailableQualityIncentivePremiumCurrentYear	74564000	USD
CY2011	moh	Maximum Available Quality Incentive Premium Current Year MaximumAvailableQualityIncentivePremiumCurrentYear	14188000	USD
CY2011	moh	Maximum Period For Member Risk Scores And Member Pharmacy Cost Experience After Original Year Of Service MaximumPeriodForMemberRiskScoresAndMemberPharmacyCostExperienceAfterOriginalYearOfService	P2Y
CY2010	moh	Medical Administrative Costs MedicalAdministrativeCosts	85500000	USD
CY2012	moh	Medical Administrative Costs MedicalAdministrativeCosts	127500000	USD
CY2011	moh	Medical Administrative Costs MedicalAdministrativeCosts	102300000	USD
CY2011	moh	Medical Care Costs Payable Acquired In Business Acquisition Of Subsidiary MedicalCareCostsPayableAcquiredInBusinessAcquisitionOfSubsidiary	0	USD
CY2010	moh	Medical Care Costs Payable Acquired In Business Acquisition Of Subsidiary MedicalCareCostsPayableAcquiredInBusinessAcquisitionOfSubsidiary	3228000	USD
CY2012	moh	Medical Care Costs Payable Acquired In Business Acquisition Of Subsidiary MedicalCareCostsPayableAcquiredInBusinessAcquisitionOfSubsidiary	0	USD
CY2012	moh	Minimum Operating Revenue For Vesting Of Awards MinimumOperatingRevenueForVestingOfAwards	5500000000	USD
CY2012	moh	Number Of Letter Of Credit Issued NumberOfLetterOfCreditIssued	2	letters_of_credit
CY2012Q4	moh	Number Of Members Eligible For Health Care Programs NumberOfMembersEligibleForHealthCarePrograms	1800000	customers
CY2011	moh	Number Of Securities12 Months Or Less NumberOfSecurities12MonthsOrLess	64
CY2012	moh	Number Of Securities12 Months Or Less NumberOfSecurities12MonthsOrLess	72
CY2011	moh	Number Of Securities12 Months Or More NumberOfSecurities12MonthsOrMore	27
CY2012	moh	Number Of Securities12 Months Or More NumberOfSecurities12MonthsOrMore	21
CY2012	moh	Payments For Medical Care Costs PaymentsForMedicalCareCosts	5004706000	USD
CY2011	moh	Payments For Medical Care Costs PaymentsForMedicalCareCosts	3811874000	USD
CY2010	moh	Payments For Medical Care Costs PaymentsForMedicalCareCosts	3335045000	USD
CY2011	moh	Payments For Medical Services Fees To Related Party PaymentsForMedicalServicesFeesToRelatedParty	24300000	USD
CY2012	moh	Payments For Medical Services Fees To Related Party PaymentsForMedicalServicesFeesToRelatedParty	28400000	USD
CY2010	moh	Payments For Medical Services Fees To Related Party PaymentsForMedicalServicesFeesToRelatedParty	22000000	USD
CY2010	moh	Payments To Related Party Under Fee For Services Agreement PaymentsToRelatedPartyUnderFeeForServicesAgreement	800000	USD
CY2011	moh	Percentage Of Financial Responsibility Ceded PercentageOfFinancialResponsibilityCeded	1.00
CY2012	moh	Percentage Of Medical Costs PercentageOfMedicalCosts	1
CY2010	moh	Percentage Of Medical Costs PercentageOfMedicalCosts	1
CY2011	moh	Percentage Of Medical Costs PercentageOfMedicalCosts	1
CY2011	moh	Percentage Of Other PercentageOfOther	0.042
CY2012	moh	Percentage Of Other PercentageOfOther	0.036
CY2010	moh	Percentage Of Other PercentageOfOther	0.038
CY2012	moh	Percentage Of Pharmacy PercentageOfPharmacy	0.164
CY2011	moh	Percentage Of Pharmacy PercentageOfPharmacy	0.108
CY2010	moh	Percentage Of Pharmacy PercentageOfPharmacy	0.097
CY2011	moh	Percentage Of Premium Recorded As Fixed Amount Per Member Per Month PercentageOfPremiumRecordedAsFixedAmountPerMemberPerMonth	0.96
CY2010	moh	Percentage Of Premium Revenue In Form Of Birth Income PercentageOfPremiumRevenueInFormOfBirthIncome	0.04
CY2012	moh	Period For Health And Welfare Benefits Under Employment Agreements For Termination Without Cause PeriodForHealthAndWelfareBenefitsUnderEmploymentAgreementsForTerminationWithoutCause	P18M
CY2012	moh	Policy Holder Benefits Prior Percentage PolicyHolderBenefitsPriorPercentage	0.098
CY2010	moh	Policy Holder Benefits Prior Percentage PolicyHolderBenefitsPriorPercentage	0.16
CY2011	moh	Policy Holder Benefits Prior Percentage PolicyHolderBenefitsPriorPercentage	0.15
CY2010	moh	Policy Holder Medical Care Cost Prior Year Percentage PolicyHolderMedicalCareCostPriorYearPercentage	0.02
CY2011	moh	Policy Holder Medical Care Cost Prior Year Percentage PolicyHolderMedicalCareCostPriorYearPercentage	0.01
CY2012	moh	Policy Holder Medical Care Cost Prior Year Percentage PolicyHolderMedicalCareCostPriorYearPercentage	0.01
CY2011	moh	Policy Holder Premium Revenue Prior Year Percentage PolicyHolderPremiumRevenuePriorYearPercentage	0.011
CY2010	moh	Policy Holder Premium Revenue Prior Year Percentage PolicyHolderPremiumRevenuePriorYearPercentage	0.012
CY2012	moh	Policy Holder Premium Revenue Prior Year Percentage PolicyHolderPremiumRevenuePriorYearPercentage	0.01
CY2012	moh	Premium Tax Expenses PremiumTaxExpenses	158991000	USD
CY2010	moh	Premium Tax Expenses PremiumTaxExpenses	139775000	USD
CY2011	moh	Premium Tax Expenses PremiumTaxExpenses	154589000	USD
CY2011	moh	Prior Year Components Of Incurred Medical Care Costs PriorYearComponentsOfIncurredMedicalCareCosts	-51809000	USD
CY2012	moh	Prior Year Components Of Incurred Medical Care Costs PriorYearComponentsOfIncurredMedicalCareCosts	-39295000	USD
CY2010	moh	Prior Year Components Of Incurred Medical Care Costs PriorYearComponentsOfIncurredMedicalCareCosts	-49378000	USD
CY2012	moh	Prior Year Payments For Medical Care Costs PriorYearPaymentsForMedicalCareCosts	355343000	USD
CY2010	moh	Prior Year Payments For Medical Care Costs PriorYearPaymentsForMedicalCareCosts	249657000	USD
CY2011	moh	Prior Year Payments For Medical Care Costs PriorYearPaymentsForMedicalCareCosts	294880000	USD
CY2010	moh	Quality Incentive Premium Revenue Recognized QualityIncentivePremiumRevenueRecognized	5527000	USD
CY2012	moh	Quality Incentive Premium Revenue Recognized QualityIncentivePremiumRevenueRecognized	64691000	USD
CY2011	moh	Quality Incentive Premium Revenue Recognized QualityIncentivePremiumRevenueRecognized	14342000	USD
CY2011	moh	Retirement Of Common Stock Used For Stock Based Compensation RetirementOfCommonStockUsedForStockBasedCompensation	-3926000	USD
CY2010	moh	Retirement Of Common Stock Used For Stock Based Compensation RetirementOfCommonStockUsedForStockBasedCompensation	-2316000	USD
CY2012	moh	Retirement Of Common Stock Used For Stock Based Compensation RetirementOfCommonStockUsedForStockBasedCompensation	-11862000	USD
CY2011	moh	Retirement Of Treasury Stock RetirementOfTreasuryStock	7000000	USD
CY2012	moh	Retirement Of Treasury Stock RetirementOfTreasuryStock	0	USD
CY2010	moh	Retirement Of Treasury Stock RetirementOfTreasuryStock	0	USD
CY2011Q2	moh	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	1.5
CY2012Q4	moh	Weighted Average Number Of Shares Issued Under Employee Stock Plans WeightedAverageNumberOfSharesIssuedUnderEmployeeStockPlans	567000	shares
CY2011Q4	moh	Weighted Average Number Of Shares Issued Under Employee Stock Plans WeightedAverageNumberOfSharesIssuedUnderEmployeeStockPlans	453000	shares
CY2010Q4	moh	Weighted Average Number Of Shares Issued Under Employee Stock Plans WeightedAverageNumberOfSharesIssuedUnderEmployeeStockPlans	258000	shares
CY2010Q4	moh	Weighted Average Number Of Shares Issued Under Equity Offering WeightedAverageNumberOfSharesIssuedUnderEquityOffering	2506000	shares
CY2011Q4	moh	Weighted Average Number Of Shares Issued Under Equity Offering WeightedAverageNumberOfSharesIssuedUnderEquityOffering	0	shares
CY2012	dei	Amendment Flag AmendmentFlag	false
CY2012	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2012	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2012	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
CY2012	dei	Document Period End Date DocumentPeriodEndDate	2012-12-31
CY2012	dei	Document Type DocumentType	10-K
CY2012	dei	Entity Central Index Key EntityCentralIndexKey	0001179929
CY2013Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	45154000	shares
CY2012	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2012	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2012Q2	dei	Entity Public Float EntityPublicFloat	664300000	USD
CY2012	dei	Entity Registrant Name EntityRegistrantName	MOLINA HEALTHCARE INC
CY2012	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2012	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes

Files In Submission

Name	View Source	Status
0001445305-13-000387-index-headers.html	Edgar Link	pending
0001445305-13-000387-index.html	Edgar Link	pending
0001445305-13-000387.txt	Edgar Link	pending
0001445305-13-000387-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
moh-12312012x10k.htm	Edgar Link	pending
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moh-20121231.xml	Edgar Link	completed
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moh-20121231_cal.xml	Edgar Link	unprocessable
moh-20121231_def.xml	Edgar Link	unprocessable
moh-20121231_lab.xml	Edgar Link	unprocessable
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$MOH
MOLINA HEALTHCARE, INC. Stock $moh

2012 Q4 Form 10-K Financial Statement

#000144530513000387 Filed on February 28, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MOH MOLINA HEALTHCARE, INC. Stock $moh

2012 Q4 Form 10-K Financial Statement

#000144530513000387 Filed on February 28, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MOH
MOLINA HEALTHCARE, INC. Stock $moh