S000001471 [Member] Investment Objectives and Goals - BATS: Short Duration Taxable Total Return Series |
Mar. 31, 2026 |
|---|---|
| Prospectus [Line Items] | |
| Risk/Return [Heading] | Fund Overview Key Facts About BATS: Short Duration Taxable Total Return Series |
| Objective [Heading] | Investment Objective |
| Objective, Primary [Text Block] | The investment objective of the BATS: Short Duration Taxable Total Return Series (formerly known as “BATS: Series S Portfolio”) (the “Fund”) is to seek to maximize total return, consistent with income generation and prudent investment management.
|