Summary of Significant Accounting Policies - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 USD ($) investment loan segment	Dec. 31, 2022 USD ($) loan	Dec. 31, 2021 USD ($)
Accounting Policies [Line Items]
Recovery of previously reserved rent	$ 0	$ 0
Adjustment for collectibility of rental income	0	1,417,000	$ 0
Below market lease, gross	7,300,000
Below market lease, accumulated amortization	$ 400,000
Below market lease, weighted average remaining amortization period	3 years
Impairment of real estate investments	$ 36,301,000	79,062,000	0
Number of preferred equity investment | investment	1
Provision for loan losses, net	$ 0	3,844,000	0
Accumulated amortization of deferred financing costs	4,800,000	2,500,000
Loss on extinguishment of debt	0	0	10,827,000
Stock-based compensation expense	$ 5,153,000	$ 5,758,000	$ 10,832,000
Number of reportable segments | segment	1
Mortgage secured loans receivable
Accounting Policies [Line Items]
Number of loans | loan	8
Mezzanine loan receivable
Accounting Policies [Line Items]
Number of loans | loan	1
Other loans receivable
Accounting Policies [Line Items]
Number of loans | loan		2
Bridge loan
Accounting Policies [Line Items]
Provision for loan losses, net		$ 4,600,000
Allowance for credit loss, writeoff, after recovery		$ 800,000