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Note 4. Sales of Businesses (Details) $ in Thousands, ¥ in Millions | 12 Months Ended
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Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 JPY (¥)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Gain on sales of businesses, net | $ 1,115 | $ 6,883 | $ 253,511 |
Japan Project Development Business |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Purchase price, sale of business |  |  | 490,800 | ¥ 66,400.0
Cash and restricted cash sold |  |  | 61,900 | 8,400.0
Gain on sales of businesses, net |  |  | 245,200 |
Chilean O&M Operations |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Proceeds from sales of businesses |  |  | 1,900 |
Gain on sales of businesses, net |  |  | 1,600 |
Australian O&M Operations |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Proceeds from sales of businesses |  |  | 6,000 |
Gain on sales of businesses, net |  |  | 4,400 |
Japanese O&M Operations |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Proceeds from sales of businesses |  |  | 4,800 | ¥ 692.7
Gain on sales of businesses, net |  |  | $ 1,400 |

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