v3.26.3
Significant Accounting Policies - Schedule of Properties Contributed of Annualized Cash Rent (Details) - Annualized Rent
3 Months Ended
Sep. 30, 2026
Customer Concentration  
Concentration of Credit Risk  
Maximum percentage of annualized rent for any one tenant not individually disclosed (percent) (more than) 5.00%
Investment Property Concentration Risk | One Vanderbilt Avenue  
Concentration of Credit Risk  
Percentage of concentration (percent) 12.10%
Investment Property Concentration Risk | 11 Madison Avenue  
Concentration of Credit Risk  
Percentage of concentration (percent) 8.40%
Investment Property Concentration Risk | 245 Park Avenue  
Concentration of Credit Risk  
Percentage of concentration (percent) 7.30%
Investment Property Concentration Risk | 420 Lexington Avenue  
Concentration of Credit Risk  
Percentage of concentration (percent) 7.00%
Investment Property Concentration Risk | 1515 Broadway  
Concentration of Credit Risk  
Percentage of concentration (percent) 6.30%
Investment Property Concentration Risk | 280 Park Avenue  
Concentration of Credit Risk  
Percentage of concentration (percent) 5.20%
Investment Property Concentration Risk | 1185 Avenue of the Americas  
Concentration of Credit Risk  
Percentage of concentration (percent) 5.20%
Investment Property Concentration Risk | 65 East 55th Street - Park Avenue Tower  
Concentration of Credit Risk  
Percentage of concentration (percent) 5.10%