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Borrowings and Other Financing Instruments Forward Equity Agreements (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | Jun. 30, 2025 | Nov. 30, 2024
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Forward Contract Indexed to Issuer's Equity [Line Items] |  |
Shares Issued, Price Per Share |  | $ 64.44
Forward Equity Agreements |  |
Forward Contract Indexed to Issuer's Equity [Line Items] |  |
Common Stock, Shares to be Issued through forward Equity Agreement |  | 21,100
Common stock, initial shares in an agreement |  | 18,300
Common stock, additional shares in an agreement |  | 2,800
Period End Settlement Price, in Shares | 21,100 |
Period End Settlement Price, in Cash | $ 1,350,000 |
Period End Net Cash Settlement Price | 100,000 |
Period End Net Share Settlement Price | 1,500 |
Expected Settlement Price | $ 1,360,000 |
Derivative, Basis Spread on Variable Rate | 0.75% |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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