S000023949 [Member] Average Annual Total Returns - PREMIER SHARES |
12 Months Ended | 60 Months Ended | 113 Months Ended |
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 4.13% | 3.08% | 2.16% |
| Performance Inception Date | Aug. 01, 2016 |