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Long-term investments - Additional Information (Detail) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2023 | Dec. 31, 2022
Schedule of Equity Method Investments [Line Items] |  |
Noncontrolling interest in partnerships and joint ventures | $ 388,516 | $ 381,802
Capital account contributions | 10,390 |
Project construction | 9,823 |
Fair value of support provided | 9,129 | $ 8,824
Guarantor obligations | $ 798,717 |

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