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Income Taxes - Summary of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Tax [Line Items] |  |  |
Tax positions, that if recognized, would decrease our effective tax rate | $ 28,762 | $ 28,246 | $ 26,300
Unrecognized tax benefit interest expense/(benefit) recognized | 452 | (139) | (535)
Unrecognized tax benefit interest accrued | 1,633 | 1,181 | 1,320
Arizona Public Service Company |  |  |
Income Tax [Line Items] |  |  |
Tax positions, that if recognized, would decrease our effective tax rate | 28,762 | 28,246 | 26,300
Unrecognized tax benefit interest expense/(benefit) recognized | 452 | (139) | (535)
Unrecognized tax benefit interest accrued | $ 1,633 | $ 1,181 | $ 1,320

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- Definition Amount of interest expense accrued for an underpayment of income taxes. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15 + Details
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- Definition Amount of interest expense for an underpayment of income taxes. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15 + Details
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15A + Details
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