v3.26.1
Redeemable Equity Instruments - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Class of Stock [Line Items]          
Adjustment to carrying value of redeemable equity instruments   $ (35)      
Adjustment to carrying value of redeemable equity instruments $ 0 (35) $ 0 $ (35)  
Additional Paid-in Capital          
Class of Stock [Line Items]          
Adjustment to carrying value of redeemable equity instruments 0 $ (35) 0 $ (35)  
Redeemable Non-controlling Interest in INREIT OP          
Class of Stock [Line Items]          
Distributions payable to noncontrolling interests 1   1   $ 0
MassMutual | Affiliated entity | Class N Common Stock          
Class of Stock [Line Items]          
Share repurchase, minimum repurchase amount     $ 50,000    
Stock redemption terms     3 years    
MassMutual | Affiliated entity | Redeemable Common Stock          
Class of Stock [Line Items]          
Share of entity's stock, minimum net asset value 20,000   $ 20,000    
MassMutual | Affiliated entity | Private Offering | Minimum          
Class of Stock [Line Items]          
Shares repurchase amount, monthly net proceeds from sale of shares, excluding sales to fund, percentage     50.00%    
MassMutual | Affiliated entity | Private Offering | Maximum          
Class of Stock [Line Items]          
Shares repurchase amount, monthly net proceeds from sale of shares, excluding sales to fund, percentage     100.00%    
MassMutual | Affiliated entity | Private Offering | Class N Common Stock          
Class of Stock [Line Items]          
Capital commitment 400,000   $ 400,000    
Shares repurchase amount, monthly net proceeds from sale of shares to fund, percentage     100.00%    
Shares repurchase amount, maximum $ 200,000   $ 200,000    
Shares repurchase amount, requested by counterparty, net proceeds from sale of shares and convertible securities, excluding sales to counterparty, percentage     15.00%    
Shares repurchase amount, requested by counterparty, aggregate net asset value, percentage     1.50%