Equity Series Management risk [Member] Market risk [Member] Large-cap risk [Member] Small- and mid-cap risk [Member] Risks related to ETFs [Member] Sector focus risk [Member] Liquidity risk [Member] Large redemption risk [Member] Overseas Series Foreign securities risk [Member] Emerging markets risk [Member] Forward contracts risk [Member] Disciplined Value Series Investment style risk [Member] Mid-cap risk [Member] Rainier International Discovery Series Preferred stock risk [Member] Convertible securities risk [Member] Rights and warrants risk [Member] Risk of initial public offerings [Member] Real estate securities risk [Member] Participatory notes risk [Member] "Growith" investing risk [Member] "Value" investing risk [Member] Money market instruments risk [Member] Multi Classes [Member] Pro-Blend(R) Conservative Term Series High-yield securities risk [Member] Risks of lower-rated investment grade securities [Member] U.S. Government securities risk [Member] Mortgage- and asset-backed securities risks [Member] Options and futures risk [Member] Pro-Blend ® Moderate Term Series Pro-Blend ® Extended Term Series Pro-Blend ® Maximum Term Series Class W [Member] Pro-Blend(R) Moderate Term Series Pro-Blend(R) Extended Term Series Pro-Blend(R) Maximum Term Series Equity Series Class S Equity Series Class W Overseas Series Class I Overseas Series Class S Overseas Series Class Z Disciplined Value Series Class S Disciplined Value Series Class I Disciplined Value Series Class W Disciplined Value Series Class Z Rainier International Discovery Series Class I Rainier International Discovery Series Class S Rainier International Discovery Series Class Z Rainier International Discovery Series Class W Pro-Blend(R) Conservative Term Series Class S Pro-Blend(R) Conservative Term Series Class I Pro-Blend(R) Conservative Term Series Class R Pro-Blend(R) Conservative Term Series Class L Pro-Blend(R) Conservative Term Series Class Z Pro-Blend(R) Moderate Term Series Class S Pro-Blend(R) Moderate Term Series Class I Pro-Blend(R) Moderate Term Series Class R Pro-Blend(R) Moderate Term Series Class L Pro-Blend(R) Moderate Term Series Class Z Pro-Blend(R) Extended Term Series Class S Pro-Blend(R) Extended Term Series Class I Pro-Blend(R) Extended Term Series Class R Pro-Blend(R) Extended Term Series Class L Pro-Blend(R) Extended Term Series Class Z Pro-Blend(R) Maximum Term Series Class S Pro-Blend(R) Maximum Term Series Class I Pro-Blend(R) Maximum Term Series Class R Pro-Blend(R) Maximum Term Series Class L Pro-Blend(R) Maximum Term Series Class Z Pro-Blend(R) Conservative Term Series Class W Pro-Blend(R) Moderate Term Series Class W Pro-Blend(R) Extended Term Series Class W Pro-Blend(R) Maximum Term Series Class W MSCI USA IMI Index MSCI ACWI ex USA Index MSCI USA Index MSCI USA Value Index MSCI ACWI ex USA Small Cap Index Bloomberg U.S. Aggregate Bond Index Conservative Term Composite Benchmark 1 Index Conservative Term Composite Benchmark 2 Index 30/10/30/30 Blended Index 30/10/60 Blended Index 40/15/45 Blended Index 65/20/15 Blended Index Pro-Blend(R) Conservative Term Series Pro-Blend(R) Conservative Term Series Class L Pro-Blend(R) Conservative Term Series Class Z Pro-Blend(R) Conservative Term Series Class R Pro-Blend(R) Conservative Term Series Class S Pro-Blend(R) Conservative Term Series Class I Pro-Blend(R) Conservative Term Series Class W Pro-Blend(R) Moderate Term Series Pro-Blend(R) Moderate Term Series Class L Pro-Blend(R) Moderate Term Series Class Z Pro-Blend(R) Moderate Term Series Class R Pro-Blend(R) Moderate Term Series Class S Pro-Blend(R) Moderate Term Series Class I Pro-Blend(R) Moderate Term Series Class W Pro-Blend(R) Extended Term Series Pro-Blend(R) Extended Term Series Class L Pro-Blend(R) Extended Term Series Class Z Pro-Blend(R) Extended Term Series Class R Pro-Blend(R) Extended Term Series Class S Pro-Blend(R) Extended Term Series Class I Pro-Blend(R) Extended Term Series Class W Pro-Blend(R) Maximum Term Series Pro-Blend(R) Maximum Term Series Class L Pro-Blend(R) Maximum Term Series Class Z Pro-Blend(R) Maximum Term Series Class R Pro-Blend(R) Maximum Term Series Class S Pro-Blend(R) Maximum Term Series Class I Pro-Blend(R) Maximum Term Series Class W Equity Series Equity Series Class S Equity Series Class W Overseas Series Overseas Series Class I Overseas Series Class S Overseas Series Class Z Disciplined Value Series Disciplined Value Series Class I Disciplined Value Series Class S Disciplined Value Series Class Z Disciplined Value Series Class W Rainier International Discovery Series Rainier International Discovery Series Class I Rainier International Discovery Series Class S Rainier International Discovery Series Class Z Rainier International Discovery Series Class W Bloomberg U.S. Aggregate Bond Index MSCI ACWI ex USA Small Cap Index Management risk. Market risk. Large-cap risk. Risks related to ETFs. Sector focus risk. Liquidity risk. Large redemption risk. Investment style risk. Mid-cap risk. MSCI USA Index MSCI USA Value Index Foreign securities risk. Emerging markets risk. Forward contracts risk. High-yield securities risk. Risks of lower-rated investment grade securities. U.S. Government securities risk. Mortgage- and asset-backed securities risks. Options and futures risk. Conservative Term Composite Benchmark 1 Index. Preferred stock risk. Convertible securities risk. Rights and warrants risk. Risk of initial public offerings. Real estate securities risk. Participatory notes risk. "Growith" investing risk. "Value" investing risk. Money market instruments risk. MSCI ACWI ex USA Index Multi Classes. Class W. MSCI USA IMI Index. 30/10/30/30 Blended Index. 30/10/60 Blended Index. 40/15/45 Blended Index. 65/20/15 Blended Index. Conservative Term Composite Benchmark 2 Index. Small- and mid-cap risk.