01001 - Document - Document and Entity Information {Elements} link:presentationLink link:calculationLink link:definitionLink 01002 - Document - Risk/Return Summary (NYLI Cushing MLP Premier Fund) {Unlabeled} link:presentationLink link:calculationLink link:definitionLink 01003 - Disclosure - Risk/Return Detail Data (NYLI Cushing MLP Premier Fund) {Elements} link:presentationLink link:calculationLink link:definitionLink 01004 - Schedule - Shareholder Fees link:presentationLink link:calculationLink link:definitionLink 01005 - Schedule - Annual Fund Operating Expenses link:presentationLink link:calculationLink link:definitionLink 01006 - Schedule - Expense Example link:presentationLink link:calculationLink link:definitionLink 01007 - Schedule - Expense Example, No Redemption link:presentationLink link:calculationLink link:definitionLink 01008 - Schedule - Bar Chart link:presentationLink link:calculationLink link:definitionLink 01009 - Schedule - Average Annual Total Returns {Transposed} link:presentationLink link:calculationLink link:definitionLink 01010 - Schedule - Risk Table {Transposed} link:presentationLink link:calculationLink link:definitionLink