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Equity and Other Investments and Fair Value Measurements - Convertible Promissory Note in Lyndra (Details) - Lyndra Convertible Note - Lyndra - USD ($) $ in Millions | Feb. 27, 2025 | Jun. 30, 2025
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Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Convertible notes face value | $ 9.2 |
Equity securities face value |  | $ 9.2
Debt Instrument, Interest Rate, Effective Percentage | 8.00% |
Debt instrument maturity date | Nov. 27, 2025 |

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