Debt and Preferred Equity Investments - Investment In Financing Receivable (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
2023	$ 0
2022	0
2021	0
Prior	334,327
Carrying value	334,327	$ 623,280
Provision for loan loss related to an investment originated prior to 2021	6,900
1 - Low Risk Assets - Low probability of loss
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2021	0
Prior	207,156
Carrying value	207,156	264,069
2 - Watch List Assets - Higher potential for loss
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2021	0
Prior	127,171
Carrying value	127,171	352,321
3 - High Risk Assets - Loss more likely than not
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2021	0
Prior	0
Carrying value	$ 0	$ 6,890