| Retirement Plan for Employees of Southern States | Fiam Reit | n/a | n/a | n/a | Jun 30, 2025 | n/a | n/a |
| Pension Plan for Salaried Employees of Alcon | Fiam Reit | n/a | n/a | n/a | Dec 31, 2024 | n/a | n/a |
| Earle M. Jorgensen Hourly Employees Pension Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2024 | n/a | n/a |
| ING Financial Services LLC Retirement Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2024 | n/a | n/a |
| The Oilgear Company Retirement Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2024 | n/a | n/a |
| MG Advantage Retirement Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2024 | n/a | n/a |
| Stmicroelectronics, Inc. Retirement Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2024 | n/a | n/a |
| The Oregon Tool Retirement Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2024 | n/a | n/a |
| The Manitowoc Company, Inc. Pension Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2024 | n/a | n/a |
| NRA Employee Retirement Plan | Fiam U.S. Real Estate Invest Tr Cit | n/a | n/a | n/a | Dec 31, 2024 | n/a | n/a |
| Retirement Plan for Bargaining Unit and Non-Bargaining Unit Employees of Northwest Natural Gas Company | Fiam Reit | n/a | n/a | n/a | Dec 31, 2024 | n/a | n/a |
| Texas United Corporation Pension Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2024 | n/a | n/a |
| BNP Paribas Pension Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2024 | n/a | n/a |
| Retirement Plan for Pilots of Piedmont Airlines, Inc. | Fiam Reit | n/a | n/a | n/a | Dec 31, 2024 | n/a | n/a |
| Capgemini Cash Balance Retirement Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2024 | n/a | n/a |
| Retirement Plan for Employees of Southern States | Fiam Reit | n/a | n/a | n/a | Jun 30, 2024 | n/a | n/a |
| ING Financial Services LLC Retirement Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2023 | n/a | n/a |
| The Oregon Tool Retirement Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2023 | n/a | n/a |
| BNP Paribas Pension Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2023 | n/a | n/a |
| Circor International, Inc. Retirement Plan | Spartan Real Estate Index Pool | n/a | n/a | n/a | Dec 31, 2023 | n/a | n/a |
| Retirement Plan for Bargaining Unit and Non-Bargaining Unit Employees of Northwest Natural Gas Company | Fiam Reit | n/a | n/a | n/a | Dec 31, 2023 | n/a | n/a |
| The Oilgear Company Retirement Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2023 | n/a | n/a |
| Pension Plan for Salaried Employees of Alcon | Fiam Reit | n/a | n/a | n/a | Dec 31, 2023 | n/a | n/a |
| Stmicroelectronics, Inc. Retirement Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2023 | n/a | n/a |
| Texas United Corporation Pension Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2023 | n/a | n/a |
| The Manitowoc Company, Inc. Pension Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2023 | n/a | n/a |
| Capgemini Cash Balance Retirement Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2023 | n/a | n/a |
| NRA Employee Retirement Plan | Fiam U.S. Real Estate Invest Tr Cit | n/a | n/a | n/a | Dec 31, 2023 | n/a | n/a |
| MG Advantage Retirement Plan | Fiam Reit | n/a | n/a | n/a | Dec 31, 2023 | n/a | n/a |
| Circor International, Inc. Retirement Plan | Spartan Real Estate Index Pool | n/a | n/a | n/a | Dec 31, 2022 | n/a | n/a |