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APS - CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
PROPERTY, PLANT AND EQUIPMENT |  |
Accumulated depreciation of Palo Verde sale leaseback | $ 264,624 | $ 260,754
Accumulated amortization on intangible assets | 885,505 | 817,961
Accumulated amortization on nuclear fuel | 118,074 | 126,157
Arizona Public Service Company |  |
PROPERTY, PLANT AND EQUIPMENT |  |
Accumulated depreciation of Palo Verde sale leaseback | 264,624 | 260,754
Accumulated amortization on intangible assets | 884,371 | 816,827
Accumulated amortization on nuclear fuel | $ 118,074 | $ 126,157

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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- Definition The accumulated depreciation and amortization related to the asset(s) sold in connection with the property sold to another party and leased back to the seller. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479741/842-40-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481266/840-40-55-50 Reference 3: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 52 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481266/840-40-55-52 Reference 4: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 51 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481266/840-40-55-51 Reference 5: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481192/840-30-45-1 + Details
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