S000026479 [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Bloomberg Universal Index (reflects no deduction for fees, expenses, or taxes) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 7.58% | 0.06% | 2.44% |
| ICE BofA U.S. High Yield Constrained Index (reflects no deduction for fees, expenses, or taxes) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 8.50% | 4.50% | 6.44% |
| MULTI-MANAGER HIGH YIELD OPPORTUNITY FUND | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 7.56% | 4.52% | 6.08% |
| MULTI-MANAGER HIGH YIELD OPPORTUNITY FUND | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 4.42% | 1.78% | 3.29% |
| MULTI-MANAGER HIGH YIELD OPPORTUNITY FUND | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 4.42% | 2.24% | 3.44% |