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Palo Verde Sale Leaseback Variable Interest Entities Schedule of VIEs (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
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Amounts relating to the VIEs included in Condensed Consolidated Balance Sheets |  |
Palo Verde sale leaseback property plant and equipment, net of accumulated depreciation | $ 120,287 us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets | $ 121,255 us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets
Current maturities of long-term debt | 383,570 us-gaap_OtherLongTermDebtCurrent | 383,570 us-gaap_OtherLongTermDebtCurrent
Equity — Noncontrolling interests | 156,214 us-gaap_MinorityInterest | 151,609 us-gaap_MinorityInterest
Arizona Public Service Company |  |
Amounts relating to the VIEs included in Condensed Consolidated Balance Sheets |  |
Palo Verde sale leaseback property plant and equipment, net of accumulated depreciation | 120,287 us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets / dei_LegalEntityAxis = pnw_ArizonaPublicServiceCompanyMember | 121,255 us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets / dei_LegalEntityAxis = pnw_ArizonaPublicServiceCompanyMember
Current maturities of long-term debt | 383,570 us-gaap_OtherLongTermDebtCurrent / dei_LegalEntityAxis = pnw_ArizonaPublicServiceCompanyMember | 383,570 us-gaap_OtherLongTermDebtCurrent / dei_LegalEntityAxis = pnw_ArizonaPublicServiceCompanyMember
Equity — Noncontrolling interests | 156,214 us-gaap_MinorityInterest / dei_LegalEntityAxis = pnw_ArizonaPublicServiceCompanyMember | 151,609 us-gaap_MinorityInterest / dei_LegalEntityAxis = pnw_ArizonaPublicServiceCompanyMember
Arizona Public Service Company | Consolidation of VIEs |  |
Amounts relating to the VIEs included in Condensed Consolidated Balance Sheets |  |
Palo Verde sale leaseback property plant and equipment, net of accumulated depreciation | 120,000 us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets / dei_LegalEntityAxis = pnw_ArizonaPublicServiceCompanyMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 121,000 us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets / dei_LegalEntityAxis = pnw_ArizonaPublicServiceCompanyMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
Current maturities of long-term debt | 13,000 us-gaap_OtherLongTermDebtCurrent / dei_LegalEntityAxis = pnw_ArizonaPublicServiceCompanyMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 13,000 us-gaap_OtherLongTermDebtCurrent / dei_LegalEntityAxis = pnw_ArizonaPublicServiceCompanyMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
Equity — Noncontrolling interests | $ 156,000 us-gaap_MinorityInterest / dei_LegalEntityAxis = pnw_ArizonaPublicServiceCompanyMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | $ 152,000 us-gaap_MinorityInterest / dei_LegalEntityAxis = pnw_ArizonaPublicServiceCompanyMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember

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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.31) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 27 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 7 + Details
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- Definition Carrying value as of the balance sheet date of the portion of long-term debt not otherwise specified in the taxonomy that is scheduled to be repaid within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=28200181&loc=d3e5710-111685 + Details
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