State Street Moderately Aggressive ETF Portfolio Annual Fund Operating Expenses - State Street Moderately Aggressive ETF Portfolio |
Dec. 31, 2025 |
|---|---|
| Class A | |
| Prospectus [Line Items] | |
| Management Fees (as a percentage of Assets) | 0.32% |
| Distribution and Service (12b-1) Fees | 0.00% |
| Other Expenses (as a percentage of Assets): | 0.04% |
| Acquired Fund Fees and Expenses | 0.17% |
| Expenses (as a percentage of Assets) | 0.53% |
| Class B | |
| Prospectus [Line Items] | |
| Management Fees (as a percentage of Assets) | 0.32% |
| Distribution and Service (12b-1) Fees | 0.25% |
| Other Expenses (as a percentage of Assets): | 0.04% |
| Acquired Fund Fees and Expenses | 0.17% |
| Expenses (as a percentage of Assets) | 0.78% |
| Class E | |
| Prospectus [Line Items] | |
| Management Fees (as a percentage of Assets) | 0.32% |
| Distribution and Service (12b-1) Fees | 0.15% |
| Other Expenses (as a percentage of Assets): | 0.04% |
| Acquired Fund Fees and Expenses | 0.17% |
| Expenses (as a percentage of Assets) | 0.68% |