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v3.21.1

Other Income and Other Expense (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Other income: |  |
Interest income | $ 1,948 | $ 3,277
Miscellaneous | 3 | 8
Total other income | 12,429 | 12,569
Other expense: |  |
Non-operating costs | (1,937) | (2,658)
Investment gains (losses) — net | (343) | 60
Miscellaneous | (1,573) | (2,186)
Total other expense | (3,853) | (4,784)
APS |  |
Other income: |  |
Interest income | 1,481 | 2,341
Miscellaneous | 1 | 8
Total other income | 11,960 | 11,633
Other expense: |  |
Non-operating costs | (1,778) | (2,482)
Miscellaneous | (1,572) | (2,186)
Total other expense | (3,350) | (4,668)
SCR deferral |  |
Other income: |  |
Debt return on Four Corners SCR deferrals (Note 4) | 4,086 | 3,140
SCR deferral | APS |  |
Other income: |  |
Debt return on Four Corners SCR deferrals (Note 4) | 4,086 | 3,140
Ocotillo deferral |  |
Other income: |  |
Debt return on Four Corners SCR deferrals (Note 4) | 6,392 | 6,144
Ocotillo deferral | APS |  |
Other income: |  |
Debt return on Four Corners SCR deferrals (Note 4) | $ 6,392 | $ 6,144

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