Summary of Significant Accounting Policies - Additional Information (Detail)						1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 31, 2024 USD ($)	Aug. 07, 2024 $ / shares shares	Nov. 01, 2023 $ / shares shares	Oct. 31, 2023 USD ($)	May 02, 2023 USD ($)	Oct. 31, 2023 USD ($)	Sep. 30, 2024 USD ($) Contract $ / shares	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) Contract Segment $ / shares	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of contracts deemed to be in VIEs | Contract							0		0
Payments to acquire intangible assets									$ 0	$ 4,500,000
Property acquisitions									0
Asset acquisition, capitalized transaction related costs									0	9,200,000
Business acquisition, transaction costs							$ 200,000	$ 300,000	600,000	1,400,000
Impairment losses recognized									0	0
Advertising costs							600,000	600,000	$ 1,800,000	1,700,000
Estimated average rental period									18 months
Gross amounts of lease intangibles							9,900,000		$ 9,900,000		$ 10,000,000
Accumulated amortization of lease intangibles							9,400,000		9,400,000		6,900,000
Debt issuance cost expense							300,000	400,000	800,000	1,200,000
Total estimated future amortization expense of intangible assets, year 2024							500,000		500,000
Accumulated amortization of debt issuance costs							1,600,000		$ 1,600,000		800,000
Maximum period for reimbursement of offering cost									60 days
Maximum offering cost rate									15.00%
Fixed rate notes payable							0		$ 0
Fixed rate notes payable outstanding							0		$ 0
Preferred units and unpaid preferred distributions					$ 15,000,000
Minimum percentage of ordinary taxable income to be distributed to stockholders									90.00%
Allowance for doubtful accounts							50,000		$ 50,000		25,000
Uncertain tax positions							0		0		0
Income tax penalties and interest expense									$ 0		0
Open tax year									2021 2022 2023
Number of reportable segments | Segment									1
Assets							551,838,108		$ 551,838,108		560,916,606
Revenues							7,284,002	6,288,476	20,897,301	14,742,233
Current tax provision									0		0
Units converted | shares		0
Intangible assets net book value							$ 521,997		$ 521,997		3,127,231
Weighted-average amortization period on remaining intangible assets							2 months 12 days		2 months 12 days
Reclassification from other assets to investments in unconsolidated real estate ventures											500,000
CA | Self Storage
Summary Of Significant Accounting Policies [Line Items]
Assets							$ 296,600,000		$ 296,600,000		304,800,000
Revenues									$ 11,400,000	5,500,000
Geographic Concentration Risk | Rental Income | AZ
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage									15.00%
Geographic Concentration Risk | Rental Income | FL
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage									11.00%
Geographic Concentration Risk | Rental Income | ONT
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage									50.00%
Distribution
Summary Of Significant Accounting Policies [Line Items]
Redemption total							$ 1,700,000	$ 400,000	$ 1,700,000	400,000
Redemption fulfilled						$ 200,000			1,200,000	200,000
Distribution | Accounts Payable and Accrued Liabilities
Summary Of Significant Accounting Policies [Line Items]
Redemption fulfilled				$ 200,000						200,000
Redemption payable									$ 500,000	$ 200,000
Sponsor Funding Agreement
Summary Of Significant Accounting Policies [Line Items]
Net asset value per share | $ / shares		$ 10
Private Offering Dealer Manager Agreement
Summary Of Significant Accounting Policies [Line Items]
Maximum sale commission fees percentage of proceed from private offering									6.00%
Maximum dealer manager commission fees percentage of proceed from private offering									3.00%
Underwriting compensation									10.00%
Maximum percentage other non-accountable expenses									3.00%
Class W Common Stock
Summary Of Significant Accounting Policies [Line Items]
Percentage of offering cost without reimbursement									1.00%
Net asset value per share | $ / shares		10
Class W Common Stock | Dealer Manager
Summary Of Significant Accounting Policies [Line Items]
Maximum sale commission fees percentage of proceed from Primary Offering									1.50%
Percentage of gross proceeds from sale of shares									10.00%
Class W Common Stock | Private Offering Dealer Manager Agreement
Summary Of Significant Accounting Policies [Line Items]
Maximum sale commission fees percentage of proceed from Primary Offering									9.00%
Percentage of gross proceeds from sale of shares									10.00%
Class W Common Stock | Stockholder Servicing Fees
Summary Of Significant Accounting Policies [Line Items]
Servicing Fees Accrual Description									accrues daily in an amount equal to 1/365th of 0.5% of the purchase price per share
Class A Common Stock
Summary Of Significant Accounting Policies [Line Items]
Net asset value per share | $ / shares		$ 10
Units converted | shares		0	0
Class A Common Stock | Sponsor Funding Agreement
Summary Of Significant Accounting Policies [Line Items]
Net asset value per share | $ / shares			$ 10
Class A Common Stock | Dealer Manager
Summary Of Significant Accounting Policies [Line Items]
Maximum sale commission fees percentage of proceed from Primary Offering									6.00%
Maximum dealer manager commission fee percentage of proceeds from Primary Offering									3.00%
Percentage of gross proceeds from sale of shares									10.00%
Class A Common Stock | Private Offering Dealer Manager Agreement
Summary Of Significant Accounting Policies [Line Items]
Percentage of gross proceeds from sale of shares									10.00%
Class Z Common Stock
Summary Of Significant Accounting Policies [Line Items]
Price per share | $ / shares			9.3
Net asset value per share | $ / shares		$ 10
Class Z Common Stock | Private Offering Dealer Manager Agreement
Summary Of Significant Accounting Policies [Line Items]
Maximum sale commission fees percentage of proceed from Primary Offering									9.00%
Percentage of gross proceeds from sale of shares									10.00%
Class Z Common Stock | Stockholder Servicing Fees
Summary Of Significant Accounting Policies [Line Items]
Servicing Fees Accrual Description									accrues daily in an amount equal to 1/365th of 0.5% of the purchase price per share
Class T Common Stock
Summary Of Significant Accounting Policies [Line Items]
Net asset value per share | $ / shares		10
Class T Common Stock | Dealer Manager
Summary Of Significant Accounting Policies [Line Items]
Maximum sale commission fees percentage of proceed from Primary Offering									3.00%
Maximum dealer manager commission fee percentage of proceeds from Primary Offering									3.00%
Percentage of gross proceeds from sale of shares									10.00%
Class T Common Stock | Private Offering Dealer Manager Agreement
Summary Of Significant Accounting Policies [Line Items]
Percentage of gross proceeds from sale of shares									10.00%
Class T Common Stock | Stockholder Servicing Fees
Summary Of Significant Accounting Policies [Line Items]
Servicing Fees Accrual Description									accrues daily in an amount equal to 1/365th of 1% of the purchase price per share
Class Y Common Stock
Summary Of Significant Accounting Policies [Line Items]
Price per share | $ / shares			$ 9.3
Net asset value per share | $ / shares		$ 10
Class Y Common Stock | Sponsor Funding Agreement
Summary Of Significant Accounting Policies [Line Items]
Percentage of upfront dealer manager fee			3.00%
Percentage of upfront sales commission			3.00%
Class Y Common Stock | Dealer Manager
Summary Of Significant Accounting Policies [Line Items]
Maximum sale commission fees percentage of proceed from Primary Offering									3.00%
Maximum dealer manager commission fee percentage of proceeds from Primary Offering									3.00%
Percentage of gross proceeds from sale of shares									10.00%
Class Y Common Stock | Private Offering Dealer Manager Agreement
Summary Of Significant Accounting Policies [Line Items]
Percentage of gross proceeds from sale of shares									10.00%
Class Y Common Stock | Stockholder Servicing Fees
Summary Of Significant Accounting Policies [Line Items]
Servicing Fees Accrual Description									accrues daily in an amount equal to 1/365th of 1% of the purchase price per share
Class Y Shares and Class Z Shares | Sponsor Funding Agreement
Summary Of Significant Accounting Policies [Line Items]
Price per share | $ / shares			$ 9.3				$ 10		$ 10
Percentage of organization and offering expenses			1.00%
Minimum
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life									3 years
Maximum
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life									5 years
Subsequent Event | Distribution | Accounts Payable and Accrued Liabilities
Summary Of Significant Accounting Policies [Line Items]
Redemption fulfilled	$ 500,000
Carry Forward of Non-capital Losses
Summary Of Significant Accounting Policies [Line Items]
Uncertain tax positions							$ 6,600,000		$ 6,600,000		$ 2,900,000