SA Index Allocation 80-20 Portfolio Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 92 Months Ended | 99 Months Ended | 107 Months Ended | 111 Months Ended | 120 Months Ended | |
|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
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| S&P 500® Index (reflects no deduction for fees, expenses or taxes)[Member] | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | 15.72% | 17.88% | 14.42% | 15.06% | 14.60% | 14.97% | 15.17% | 14.82% |
| SA Idx Alloc 80/20 Blended Index[Member] | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | 16.35% | 9.92% | 10.77% | |||||
| Class 1 | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | 15.78% | 9.54% | 10.33% | |||||
| Performance Inception Date | Feb. 06, 2017 | |||||||
| Class 3 | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | 15.51% | 9.25% | 10.05% | |||||
| Performance Inception Date | Feb. 06, 2017 |