Segment Reporting - Summary of Financial Results by Segment (Details) - USD ($) $ in Thousands	3 Months Ended						6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	[1]	Mar. 31, 2022	[2]	Jun. 30, 2023	Jun. 30, 2022	[1]
Revenues
Rental revenue	$ 3,951						$ 7,860
Total revenues	3,951						7,860
Expenses
Rental property operating	1,227						2,358
Income from investment in real estate debt	431						841
Loss from investments in real estate-related and other securities	(53)						(48)
Segment net operating income (loss)	3,102						6,295
Depreciation and amortization	(2,117)						(4,370)
General and administrative	(1,182)		$ (2)				(2,285)	$ (2)
Mandatorily redeemable Class E units interest costs	(526)						(4,669)
Interest expense	(1,757)						(3,925)
Other income (expense)	(128)						(125)
Net loss	(2,608)	$ (6,471)	(2)	[2]	$ 0		(9,079)	(2)	[3]
Net loss attributable to non-controlling interests in consolidated joint ventures	(26)						(79)
Net loss attributable to JPMREIT stockholders, basic	(2,582)		$ (2)				(9,000)	$ (2)
Multifamily
Revenues
Rental revenue	3,641						7,312
Total revenues	3,641						7,312
Expenses
Rental property operating	1,195						2,356
Segment net operating income (loss)	2,446						4,956
Depreciation and amortization	(2,032)						(4,200)
Industrial
Revenues
Rental revenue	310						548
Total revenues	310						548
Expenses
Rental property operating	35						2
Segment net operating income (loss)	275						546
Depreciation and amortization	(80)						(161)
Investment in real estate debt, real estate-related and other securities
Expenses
Rental property operating	(3)
Income from investment in real estate debt	431						841
Loss from investments in real estate-related and other securities	(53)						(48)
Segment net operating income (loss)	$ 381						$ 793

[1] J.P. Morgan Real Estate Income Trust, Inc. was formed on November 5, 2021 and commenced operations on September 2, 2022, accordingly, there were minimal operations during the three and six months ended June 30, 2022.

[2] J.P. Morgan Real Estate Income Trust, Inc. was formed on November 5, 2021 and commenced operations on September 2, 2022, accordingly, there were minimal operations during the three ended March 31, 2022 and June 30, 2022.

[3] J.P. Morgan Real Estate Income Trust, Inc. was formed on November 5, 2021 and commenced operations on September 2, 2022, accordingly, there were minimal operations during the six months ended June 30, 2022.