Redeemable Equity Instruments - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2022
Class of Stock [Line Items]
Adjustment to carrying value	$ 0	$ 54
Redeemable Non-controlling Interest in INREIT OP
Class of Stock [Line Items]
Distributions payable to noncontrolling interests	6		$ 10
MassMutual | Affiliated entity | Private Offering
Class of Stock [Line Items]
Shares repurchase amount, maximum	$ 150,000
Percentage of net process from sale of shares, maximum	100.00%
MassMutual | Class N Common Stock | Affiliated entity
Class of Stock [Line Items]
Share repurchase, minimum repurchase amount	$ 50,000
Stock redemption terms	3 years
MassMutual | Class N Common Stock | Affiliated entity | Private Offering
Class of Stock [Line Items]
Capital commitment				$ 400,000
Shares repurchase amount, maximum	$ 200,000
MassMutual | Redeemable Common Stock | Affiliated entity
Class of Stock [Line Items]
Share of entity's stock, minimum net asset value	$ 20,000