Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended | 165 Months Ended | |
|---|---|---|---|---|---|
Dec. 30, 2025 |
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
|
| Share class | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 20.99% | 12.32% | 11.97% | 11.77% | |
| Performance Inception Date | Apr. 01, 2011 | ||||
| Share class | After Taxes on Distributions | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 18.38% | 10.75% | 10.42% | ||
| Share class | After Taxes on Distributions and Sales | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 14.08% | 9.52% | 9.45% | ||
| S&P 500 Index (reflects no deductions for account fees, expenses or U.S. federal income taxes) | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 25.02% | 14.53% | 13.10% | 13.55% |