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v2.4.1.9

Income Taxes (Details) (USD $) | 0 Months Ended | 3 Months Ended
--- | --- | ---
Sep. 13, 2013 | Mar. 31, 2015
Income Taxes |  |
Increase (decrease) in deferred income taxes due to adoption of regulations | $ 82,000,000 pnw_IncreaseDecreaseInDeferredIncomeTaxesDueToRegulationAdoption |
Consolidation of VIEs |  |
Income Taxes |  |
Income tax expense associates with the VIE's |  | $ 0 pnw_IncomeTaxExpenseBenefitAttributableToNonControllingInterests / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember

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- Definition The sum of the current income tax expense or benefit attributable to non-controlling interests. + References No definition available. + Details
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- Definition The increase (decrease) during the reporting period in the account that represents the temporary difference that results from Income or Loss that is recognized for accounting purposes but not for tax purposes and vice versa, due to the adoption of regulations. + References No definition available. + Details
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- Details
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