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Other Income and Other Expense (Tables) | 12 Months Ended
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Dec. 31, 2021
Other Income and Expenses [Abstract] |
Detail of other income and other expense | The following table provides detail of Pinnacle West’s Consolidated other income and other expense for 2021, 2020 and 2019 (dollars in thousands):
| 2021 |  | 2020 |  | 2019
Other income: |  |  |  |  |
Interest income | $ | 6,726 |  |  | $ | 12,210 |  |  | $ | 10,377 |
Investment gains (losses) — net | — |  |  | 2,358 |  |  | — |
Debt return on Four Corners SCR deferral (Note 4) | 14,955 |  |  | 15,865 |  |  | 19,541 |
Debt return on Ocotillo modernization project (Note 4) | 23,366 |  |  | 26,121 |  |  | 20,282 |
Miscellaneous | 53 |  |  | 149 |  |  | 63 |
Total other income | $ | 45,100 |  |  | $ | 56,703 |  |  | $ | 50,263 |
Other expense: |  |  |  |  |
Non-operating costs | $ | (13,008) |  |  | $ | (12,400) |  |  | $ | (10,663) |
Investment gains (losses) — net | (1,367) |  |  | — |  |  | (1,835) |
Miscellaneous | (11,021) |  |  | (45,376) |  | (a) | (5,382) |
Total other expense | $ | (25,396) |  |  | $ | (57,776) |  |  | $ | (17,880) |
(a)The 2020 miscellaneous amount includes donations of approximately $10 million to the APS Foundation and approximately $25.2 million related to the CCT plan. See Note 4. The following table provides detail of APS’s other income and other expense for 2021, 2020 and 2019 (dollars in thousands):
| 2021 |  | 2020 |  | 2019
Other income: |  |  |  |  |
Interest income | $ | 4,692 |  |  | $ | 9,621 |  |  | $ | 6,998 |
Debt return on Four Corners SCR deferral (Note 4) | 14,955 |  |  | 15,865 |  |  | 19,541 |
Debt return on Ocotillo modernization project (Note 4) | 23,366 |  |  | 26,121 |  |  | 20,282 |
Miscellaneous | 40 |  |  | 148 |  |  | 63 |
Total other income | $ | 43,053 |  |  | $ | 51,755 |  |  | $ | 46,884 |
Other expense: |  |  |  |  |
Non-operating costs | $ | (10,080) |  |  | $ | (10,659) |  |  | $ | (9,612) |
Miscellaneous | (8,817) |  |  | (43,035) |  | (a) | (3,378) |
Total other expense | $ | (18,897) |  |  | $ | (53,694) |  |  | $ | (12,990) |
(a)The 2020 miscellaneous amount includes donations of approximately $10 million to the APS Foundation and approximately $25.2 million related to the CCT plan. See Note 4.

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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