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Schedule I - Condensed Financial Information of Registrant - Comprehensive Income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
CONDENSED FINANCIAL STATEMENTS |  |  |
Operating expenses | $ 4,112,852 | $ 3,871,351 | $ 3,592,474
Other |  |  |
Total | 101,968 | 102,376 | 99,281
Interest expense | 425,742 | 374,887 | 283,569
Income tax benefit | 110,529 | 76,912 | 74,827
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS | 608,806 | 501,557 | 483,602
Other comprehensive income (loss) — attributable to common shareholders | 2,202 | (1,709) | 23,426
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS | 611,008 | 499,848 | 507,028
Pinnacle West |  |  |
CONDENSED FINANCIAL STATEMENTS |  |  |
Operating expenses | 9,931 | 11,249 | 8,850
Other |  |  |
Equity in earnings of subsidiaries | 643,703 | 539,962 | 500,042
Other income (expense) | 23,835 | 2,823 | (4,725)
Total | 667,538 | 542,785 | 495,317
Interest expense | 65,261 | 47,251 | 18,861
Income before income taxes | 592,346 | 484,285 | 467,606
Income tax benefit | (16,460) | (17,272) | (15,996)
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS | 608,806 | 501,557 | 483,602
Other comprehensive income (loss) — attributable to common shareholders | 2,202 | (1,709) | 23,426
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS | $ 611,008 | $ 499,848 | $ 507,028

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