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Joint Ventures and Variable Interest Entities - Equity in Earnings (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Financial Information |  |  |  |
Equity in earnings (losses) of joint ventures | $ 7,647 | $ (303,503) | $ (1,835) | $ (286,218)
Unconsolidated joint ventures |  |  |  |
Financial Information |  |  |  |
Equity in earnings (losses) of joint ventures |  |  | (1,800) | (286,200)
Unconsolidated joint ventures | Pass-through joint ventures |  |  |  |
Financial Information |  |  |  |
Equity in earnings (losses) of joint ventures |  |  | 24,700 | 18,200
Unconsolidated joint ventures | Other joint ventures |  |  |  |
Financial Information |  |  |  |
Equity in earnings (losses) of joint ventures |  |  | $ (26,500) | $ (304,400)

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