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Joint Ventures and Variable Interest Entities - Equity in Earnings (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Financial Information
Equity in earnings of joint ventures	$ 13,505	$ 16,600	$ 23,433	$ 23,232
Unconsolidated Joint Ventures | Pass through joint ventures
Financial Information
Equity in earnings of joint ventures			17,800	16,000
Unconsolidated Joint Ventures | Other joint ventures
Financial Information
Equity in earnings of joint ventures			$ 5,600	$ 7,200

X

- Definition

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

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