Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Equity Series Class S | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 8.79% | 15.93% | 24.46% | (19.61%) | 25.61% | 23.62% | 33.53% | (3.52%) | 28.78% | 7.69% |
| Overseas Series Class I | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 16.22% | 3.35% | 19.87% | (24.26%) | 11.51% | 27.06% | 27.50% | (17.22%) | 23.91% | 3.50% |
| Disciplined Value Series Class I | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 15.88% | 11.66% | 5.51% | (4.26%) | 22.45% | 2.49% | 24.32% | (4.07%) | 23.10% | 15.49% |
| Rainier International Discovery Series Class I | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 27.01% | 0.62% | 6.53% | (30.41%) | 14.27% | 41.43% | 24.94% | (18.02%) | 42.04% | (6.55%) |
| Pro-Blend(R) Conservative Term Series Class S | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 7.88% | 4.27% | 8.51% | (11.13%) | 5.39% | 10.49% | 12.96% | (2.24%) | 8.92% | 4.25% |
| Pro-Blend(R) Moderate Term Series Class S | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 9.29% | 6.13% | 11.10% | (14.53%) | 8.00% | 14.92% | 16.14% | (3.51%) | 11.57% | 3.19% |
| Pro-Blend(R) Extended Term Series Class S | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 10.02% | 7.18% | 13.14% | (16.72%) | 11.29% | 17.60% | 19.29% | (4.26%) | 14.87% | 3.84% |
| Pro-Blend(R) Maximum Term Series Class S | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 12.08% | 11.89% | 19.05% | (20.41%) | 18.43% | 22.08% | 27.65% | (6.36%) | 24.19% | 4.56% |
| Pro-Blend(R) Conservative Term Series Class W | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 8.69% | 5.10% | 9.36% | (10.36%) | 6.11% | 11.45% | 12.96% | (2.24%) | 8.92% | 4.25% |
| Pro-Blend(R) Moderate Term Series Class W | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 10.29% | 7.06% | 12.21% | (13.69%) | 9.08% | 16.01% | 16.14% | (3.51%) | 11.57% | 3.19% |
| Pro-Blend(R) Extended Term Series Class W | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 11.03% | 8.22% | 14.17% | (15.94%) | 12.33% | 18.72% | 19.29% | (4.26%) | 14.87% | 3.84% |
| Pro-Blend(R) Maximum Term Series Class W | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 13.21% | 13.01% | 20.22% | (19.58%) | 19.63% | 23.27% | 27.65% | (6.36%) | 24.19% | 4.56% |