v3.25.4
S000001130 [Member] Average Annual Total Returns
 12 Months Ended 60 Months Ended 99 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
S&P 500® Index (reflects no deduction for fees, expenses, or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent 17.88% 14.42% 14.76% [1] 14.82%
Performance Inception Date     Sep. 29, 2017  
Russell 2000® Value Index (reflects no deduction for fees, expenses, or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent 12.59% 8.88% 6.96% [1] 9.27%
Performance Inception Date     Sep. 29, 2017  
Class N        
Prospectus [Line Items]        
Average Annual Return, Percent 2.25% 8.69% [1] 10.21%
Class N | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Percent (0.21%) 6.86% [1] 8.22%
Class N | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Percent 2.84% 6.61% [1] 7.81%
Class I        
Prospectus [Line Items]        
Average Annual Return, Percent 2.54% 8.98% [1] 10.50%
Class Z        
Prospectus [Line Items]        
Average Annual Return, Percent 2.62% 9.07% 8.63% [1]
Performance Inception Date     Sep. 29, 2017  
[1] Class Z and Index performance shown reflects performance since the inception date of the Fund's Class Z shares on September 29, 2017.