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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
PROPERTY, PLANT AND EQUIPMENT |  |
Accumulated depreciation of Palo Verde sale leaseback | $ 264,624 | $ 260,754
Accumulated amortization on intangible assets | 885,505 | 817,961
Accumulated amortization on nuclear fuel | $ 118,074 | $ 126,157
EQUITY |  |
Common stock, authorized shares (in shares) | 150,000,000 | 150,000,000
Common stock, issued shares (in shares) | 113,537,689 | 113,247,189
Treasury stock (in shares) | 113,272 | 73,613

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