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Investments In Unconsolidated Subsidiaries - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated subsidiaries			$ 1,317,705	$ 1,196,088
Additional investment	$ 100,700		$ 100,720	$ 0	$ 0
Industrious
Schedule of Equity Method Investments [Line Items]
Equity method investments in unconsolidated subsidiaries, variations in ownership percentage			45.00%	45.00%
Additional investment		$ 100,000
Altus Power
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated subsidiaries			$ 219,624	$ 368,368
Ownership Percentage | Minimum
Schedule of Equity Method Investments [Line Items]
Equity method investments in unconsolidated subsidiaries, variations in ownership percentage			1.00%
Ownership Percentage | Maximum
Schedule of Equity Method Investments [Line Items]
Equity method investments in unconsolidated subsidiaries, variations in ownership percentage			50.00%
Investment management | Real Estate Investments
Schedule of Equity Method Investments [Line Items]
Revenue from related parties			$ 268,900	213,500	145,900
Development and Construction Management Revenues
Schedule of Equity Method Investments [Line Items]
Revenue from related parties			$ 103,000	$ 68,200	$ 45,200

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