v3.26.1
Shareholder Report, Holdings (Details)
Feb. 28, 2026
C000143970 | Utility - Electric  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000143970 | Independent Energy  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000143970 | Building Materials  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000143970 | Gaming  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000143970 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000143970 | Chemicals  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000143970 | Midstream  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000143970 | Cable Satellite  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000143970 | Insurance - P&C  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000143970 | Technology  
Holdings [Line Items]  
Percent of Net Asset Value 13.70%
C000143971 | Utility - Electric  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000143971 | Independent Energy  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000143971 | Building Materials  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000143971 | Gaming  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000143971 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000143971 | Chemicals  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000143971 | Midstream  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000143971 | Cable Satellite  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000143971 | Insurance - P&C  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000143971 | Technology  
Holdings [Line Items]  
Percent of Net Asset Value 13.70%
C000130168 | Utility - Electric  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000130168 | Independent Energy  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000130168 | Building Materials  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000130168 | Gaming  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000130168 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000130168 | Chemicals  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000130168 | Midstream  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000130168 | Cable Satellite  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000130168 | Insurance - P&C  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000130168 | Technology  
Holdings [Line Items]  
Percent of Net Asset Value 13.70%
C000190443 | Utility - Electric  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000190443 | Independent Energy  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000190443 | Building Materials  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000190443 | Gaming  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000190443 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000190443 | Chemicals  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000190443 | Midstream  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000190443 | Cable Satellite  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000190443 | Insurance - P&C  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000190443 | Technology  
Holdings [Line Items]  
Percent of Net Asset Value 13.70%
C000024613 | Utility - Electric  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000024613 | Independent Energy  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000024613 | Building Materials  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000024613 | Gaming  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000024613 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000024613 | Chemicals  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000024613 | Midstream  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000024613 | Cable Satellite  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000024613 | Insurance - P&C  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000024613 | Technology  
Holdings [Line Items]  
Percent of Net Asset Value 13.70%