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Income Taxes - Reconciliation of Income Tax Expense (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract] | |||
| Federal income tax rate (as a percent) | 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate |
| Computed expected tax expense | $ 143.4us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | $ 136.2us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | $ 133.9us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate |
| State and local income taxes, net of federal income taxes | 8.0us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | 11.5us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | 10.2us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes |
| Foreign taxes, net of foreign tax credit | (0.7)strza_IncomeTaxReconciliatoinForeignIncomeTaxRateDifferentialNetOfForeignTaxCredits | 0.9strza_IncomeTaxReconciliatoinForeignIncomeTaxRateDifferentialNetOfForeignTaxCredits | 0.8strza_IncomeTaxReconciliatoinForeignIncomeTaxRateDifferentialNetOfForeignTaxCredits |
| Change in valuation allowance affecting tax expense | 1.2us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | 3.0us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | 76.9us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance |
| Deduction for qualified production activity | (10.4)us-gaap_IncomeTaxReconciliationDeductionsQualifiedProductionActivities | (12.6)us-gaap_IncomeTaxReconciliationDeductionsQualifiedProductionActivities | 0us-gaap_IncomeTaxReconciliationDeductionsQualifiedProductionActivities |
| Taxable liquidation of subsidiary | 0strza_IncomeTaxReconciliationTaxableLiquidationOfSubsidiary | 0strza_IncomeTaxReconciliationTaxableLiquidationOfSubsidiary | (101.3)strza_IncomeTaxReconciliationTaxableLiquidationOfSubsidiary |
| Change in subsidiary tax status | 0strza_IncomeTaxReconciliationChangeInSubsidiaryTaxStatus | 0.8strza_IncomeTaxReconciliationChangeInSubsidiaryTaxStatus | 9.0strza_IncomeTaxReconciliationChangeInSubsidiaryTaxStatus |
| Other, net | (0.7)us-gaap_IncomeTaxReconciliationOtherAdjustments | (0.4)us-gaap_IncomeTaxReconciliationOtherAdjustments | 0.9us-gaap_IncomeTaxReconciliationOtherAdjustments |
| Income tax expense | $ 140.8us-gaap_IncomeTaxExpenseBenefit | $ 139.4us-gaap_IncomeTaxExpenseBenefit | $ 130.4us-gaap_IncomeTaxExpenseBenefit |
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- Definition
Income Tax Reconciliation, Change in Subsidiary Tax Status No definition available.
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- Definition
Income Tax Reconciliation, Taxable Liquidation of Subsidiary No definition available.
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- Definition
Income Tax Reconciliatoin, Foreign Income Tax Rate Differential Net of Foreign Tax Credits No definition available.
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- Definition
Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount 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 increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the difference between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for qualified production activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount 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 other adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount 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 state and local income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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