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Fair Value Measurements - Narratives (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Fair Value Inputs, Assets
Equity method investments in real estate	$ 355,668,000		$ 354,261,000
Investment Management Segment [Member]
Fair Value Inputs, Assets
Goodwill, Impairment Loss	0	$ 0
GCIF
Fair Value Inputs, Assets
Equity method investments in real estate	800,000		800,000
Lineage \| Level 3
Fair Value Inputs, Assets
Dividend income		$ 3,000,000
Fair value of investments	$ 404,900,000		$ 404,900,000