Variable Interest Entities - Schedule of Amounts Relating to the VIEs Included in Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Palo Verde Sale Leaseback Variable Interest Entities
Palo Verde sale leaseback property, plant and equipment, net of accumulated depreciation	$ 21,046,535	$ 20,720,104
Amounts relating to the VIEs included in Condensed Consolidated Balance Sheets
Equity — Noncontrolling interests	42,811	40,617
APS
Palo Verde Sale Leaseback Variable Interest Entities
Palo Verde sale leaseback property, plant and equipment, net of accumulated depreciation	21,046,380	20,719,949
Amounts relating to the VIEs included in Condensed Consolidated Balance Sheets
Equity — Noncontrolling interests	42,811	40,617
Palo Verde VIE | APS
Palo Verde Sale Leaseback Variable Interest Entities
Palo Verde sale leaseback property, plant and equipment, net of accumulated depreciation	31,641	32,035
Amounts relating to the VIEs included in Condensed Consolidated Balance Sheets
Equity — Noncontrolling interests	$ 42,811	$ 40,617