Earnings Per Share - Schedule of Net (Loss) Income and Weighted Average Number of Shares Outstanding (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Earnings Per Share [Abstract]
Net (loss) income attributable to JPMREIT stockholders, basic	$ (2,778)	$ 1,681
Net (loss) income attributable to JPMREIT stockholders, diluted	$ (2,778)	$ 1,681
Weighted-average shares of common stock outstanding, basic	82,216	50,719
Weighted-average shares of common stock outstanding, diluted	82,216	50,724