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Commitments and Contingencies - Summary of Real Estate Development Commitments (Parenthetical) (Details) $ in Millions	Sep. 30, 2024 USD ($)
Projects/Investments/Units/Remaining Commitments schedule
Total project costs remaining under development commitment fund	$ 432.7
Parent
Projects/Investments/Units/Remaining Commitments schedule
Total project costs remaining under development commitment fund	231.3
Corporate Joint Venture
Projects/Investments/Units/Remaining Commitments schedule
Total project costs remaining under development commitment fund	8.5
Construction Loans
Projects/Investments/Units/Remaining Commitments schedule
Total project costs remaining under development commitment fund	$ 192.9

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