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Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Tabular reconciliation of the total amounts of unrecognized tax benefits, excluding interest and penalties, at the beginning and end of the year |  |  |
Total unrecognized tax benefits, beginning of the year | $ 45,655 | $ 43,435 | $ 40,731
Additions for tax positions of the current year | 3,305 | 3,418 | 3,373
Additions for tax positions of prior years | 1,449 | 1,431 | 1,843
Reductions for tax positions of prior years for: |  |  |
Changes in judgment | (2,659) | (1,965) | (2,078)
Settlements with taxing authorities | 0 | 0 | 0
Lapses of applicable statute of limitations | (2,664) | (664) | (434)
Total unrecognized tax benefits, end of the year | 45,086 | 45,655 | 43,435
Arizona Public Service Company |  |  |
Tabular reconciliation of the total amounts of unrecognized tax benefits, excluding interest and penalties, at the beginning and end of the year |  |  |
Total unrecognized tax benefits, beginning of the year | 45,655 | 43,435 | 40,731
Additions for tax positions of the current year | 3,305 | 3,418 | 3,373
Additions for tax positions of prior years | 1,449 | 1,431 | 1,843
Reductions for tax positions of prior years for: |  |  |
Changes in judgment | (2,659) | (1,965) | (2,078)
Settlements with taxing authorities | 0 | 0 | 0
Lapses of applicable statute of limitations | (2,664) | (664) | (434)
Total unrecognized tax benefits, end of the year | $ 45,086 | $ 45,655 | $ 43,435

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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 10B -URI http://asc.fasb.org/extlink&oid=123427490&loc=SL37586934-109318 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319 + Details
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319 + Details
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