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Income Taxes Reconciliation of effective tax rate (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Statutory Federal rate	35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Increase (decrease) resulting from:
Change in valuation allowance	(26.90%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	(30.30%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	(72.40%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
Change in uncertain tax positions	(9.00%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingenciesOther	(9.80%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingenciesOther	(4.40%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingenciesOther
Executive life insurance	2.30%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	5.10%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.80%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance
State and local taxes, net	2.80%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	3.20%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	2.60%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
Meals & entertainment	(2.60%)us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment	(1.90%)us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment	(0.30%)us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment
Provision to return differences	(3.20%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxSettlementsOther	1.50%us-gaap_EffectiveIncomeTaxRateReconciliationTaxSettlementsOther	0.90%us-gaap_EffectiveIncomeTaxRateReconciliationTaxSettlementsOther
Other items, net	(2.30%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments	(0.80%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments	(1.10%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments
Provision for income taxes	(3.90%)us-gaap_EffectiveIncomeTaxRateContinuingOperations	2.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations	(38.90%)us-gaap_EffectiveIncomeTaxRateContinuingOperations

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to life insurance expense.

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