Loomis Sayles Global Allocation Portfolio Expense Example - Loomis Sayles Global Allocation Portfolio |
Dec. 31, 2025
USD ($)
|
|---|---|
| Class A | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 81 |
| Expense Example, with Redemption, 3 Years | 257 |
| Expense Example, with Redemption, 5 Years | 448 |
| Expense Example, with Redemption, 10 Years | 1,000 |
| Class B | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 106 |
| Expense Example, with Redemption, 3 Years | 335 |
| Expense Example, with Redemption, 5 Years | 583 |
| Expense Example, with Redemption, 10 Years | $ 1,292 |