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Joint Ventures and Variable Interest Entities - Equity in Earnings (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Financial Information
Equity in (losses) earnings of joint ventures	$ (28,941)	$ 9,829
Unconsolidated joint ventures
Financial Information
Equity in (losses) earnings of joint ventures	(28,900)	9,800
Unconsolidated joint ventures | Pass-through joint ventures
Financial Information
Equity in (losses) earnings of joint ventures	7,900	4,200
Unconsolidated joint ventures | Other joint ventures
Financial Information
Equity in (losses) earnings of joint ventures	$ (36,800)	$ 5,600

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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