Service and Premier Shares [Member] Average Annual Total Returns - Service and Premier Shares [Member] - Premier Shares |
12 Months Ended | 19 Months Ended |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Prospectus [Line Items] | ||
| Average Annual Return, Percent | 4.21% | 4.49% |
| Performance Inception Date | Jun. 11, 2024 |