v3.26.1
S000048870 [Member] Average Annual Total Returns
12 Months Ended 60 Months Ended 120 Months Ended 127 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Bloomberg Commodity Index Total Return (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent 15.77% 10.64% 5.73% 2.54%
Performance Inception Date       May 18, 2015
S&P 500® Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent 17.88% 14.42% 14.82% 13.60%
Performance Inception Date       May 18, 2015
Class I        
Prospectus [Line Items]        
Average Annual Return, Percent 6.12% 8.75% 5.19% 3.39%
Performance Inception Date       May 18, 2015
Class I | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Percent 4.85% 3.95% 2.50% 0.90%
Performance Inception Date       May 18, 2015
Class I | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Percent 3.62% 4.79% 2.91% 1.56%
Performance Inception Date       May 18, 2015
Class N        
Prospectus [Line Items]        
Average Annual Return, Percent 5.87% 8.48% 4.91% 3.12%
Performance Inception Date       May 18, 2015
I2        
Prospectus [Line Items]        
Average Annual Return, Percent [1] 6.02% 8.69% 5.13% 3.34%
Performance Inception Date [1]       May 18, 2015
[1]
Class I2 shares of the Fund were not available for purchase until November 3, 2025. Performance shown prior to that inception date is that of Class I shares (which invest in the same portfolio of securities as Class I2 shares), reduced by an estimate of the additional operating expenses that would have applied to Class I2 shares prior to November 3, 2025. The actual additional expenses incurred had Class I2 shares begun operations earlier may have been greater or less than that estimate.