| N-CSRS | Certified semi-annual shareholder report... | Calvert Social Investment Fund | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 05/29/2026 | |
| NPORT-P | Monthly Portfolio Investments Report on ... | | State Street Bank & Trust CO Fund Admin Dept. /fa | 05/26/2026 | |
| NPORT-P | Monthly Portfolio Investments Report on ... | | State Street Bank & Trust CO Fund Admin Dept. /fa | 05/26/2026 | |
| NPORT-P | Monthly Portfolio Investments Report on ... | | State Street Bank & Trust CO Fund Admin Dept. /fa | 05/26/2026 | |
| NPORT-P | Monthly Portfolio Investments Report on ... | | State Street Bank & Trust CO Fund Admin Dept. /fa | 05/26/2026 | |
| NPORT-P | Monthly Portfolio Investments Report on ... | | State Street Bank & Trust CO Fund Admin Dept. /fa | 05/26/2026 | |
| NPORT-P | Monthly Portfolio Investments Report on ... | | State Street Bank & Trust CO Fund Admin Dept. /fa | 05/26/2026 | |
| NPORT-P | Monthly Portfolio Investments Report on ... | | State Street Bank & Trust CO Fund Admin Dept. /fa | 05/26/2026 | |
| 497 | Definitive materials filed under paragra... | Calvert Social Investment Fund | Broadridge Asset Management Solutions /fa | 03/31/2026 | |
| 497 | Definitive materials filed under paragra... | Calvert Social Investment Fund | Broadridge Asset Management Solutions /fa | 03/04/2026 | |
| No record found. |
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