S000003877 [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| MSCI All Country World Ex-U.S. Index-NR (reflects no deduction for fees, expenses or taxes but are net of dividend tax withholdings) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 32.39% | 7.91% | 8.41% |
| MSCI EAFE Index-NR (index reflects no deduction for fees, expenses or taxes but are net of dividend tax withholding) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 31.22% | 8.92% | 8.18% |
| Class IA Shares | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 38.00% | 9.55% | 8.40% |
| Class IB Shares | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 37.68% | 9.28% | 8.12% |