Empower SP Small Cap 600 Index Fund Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 105 Months Ended | 120 Months Ended |
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Russell 3000® Index (reflects no deduction for fees, expenses or taxes)[Member] | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 17.15% | 13.15% | 14.29% | |
| S&P SmallCap 600® Index (reflects no deduction for fees, expenses or taxes)[Member] | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 6.02% | 7.31% | 9.81% | |
| Institutional | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 5.83% | 7.08% | 9.63% | |
| Investor | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 5.55% | 6.70% | 9.24% | |
| L | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 5.17% | 6.41% | 8.97% |