Subsequent Events - Summary of Terms of MRB and Taxable MRB Commitments (Details)		1 Months Ended
		Oct. 31, 2021 USD ($) Unit	Sep. 30, 2021 Unit
Mortgage Loans on Real Estate [Line Items]
Units | Unit			4,332
MRB and Taxable MRB Commitments [Member] | Subsequent Event [Member]
Mortgage Loans on Real Estate [Line Items]
Initial Funding		$ 25,000,000
Maximum Remaining Commitment		$ 17,000,000
MRB and Taxable MRB Commitments [Member] | The Residency at the Mayer [Member] | Series A [Member] | Subsequent Event [Member] | CA [Member]
Mortgage Loans on Real Estate [Line Items]
Month Acquired	[1]	October 2021
Units | Unit	[1]	79
Maturity Date	[1]	Apr. 01, 2039
Initial Funding	[1]	$ 24,000,000
Maximum Remaining Commitment	[1]	$ 5,500,000
MRB and Taxable MRB Commitments [Member] | The Residency at the Mayer [Member] | Series A-T [Member] | Subsequent Event [Member] | CA [Member]
Mortgage Loans on Real Estate [Line Items]
Month Acquired		October 2021
Units | Unit		79
Maturity Date		Apr. 01, 2024
Initial Funding		$ 1,000,000
Maximum Remaining Commitment		$ 11,500,000
MRB and Taxable MRB Commitments [Member] | The Residency at the Mayer [Member] | SOFR [Member] | Series A [Member] | Subsequent Event [Member] | CA [Member]
Mortgage Loans on Real Estate [Line Items]
Variable Interest Rate	[1],[2]	3.60%
MRB and Taxable MRB Commitments [Member] | The Residency at the Mayer [Member] | SOFR [Member] | Series A-T [Member] | Subsequent Event [Member] | CA [Member]
Mortgage Loans on Real Estate [Line Items]
Variable Interest Rate	[2]	3.70%

[1] Upon stabilization of the property, the MRB will be partially repaid and resized to a maximum balance of approximately $18.1 million.

[2] The index is subject to a floor of 0.25%. Upon stabilization, the interest rate of the Series A MRB will convert to a fixed rate of 4.90%