v3.26.1
Shareholder Report, Average Annual Return (Details)
 12 Months Ended 60 Months Ended 71 Months Ended 120 Months Ended
Apr. 30, 2026
Apr. 30, 2026
Apr. 30, 2026
Apr. 30, 2026
Apr. 30, 2026
Class A          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         Class A
Average Annual Return, Percent 5.12% 3.08%     3.90%
Class C          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         Class C
Average Annual Return, Percent 5.65% 2.78%     3.39%
Class F          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name     Class F    
Class I          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         Class I
Class R          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         Class R
Class Z          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         Class Z
Without Sales Load [Member] | Class A          
Average Annual Return [Line Items]          
Average Annual Return, Percent 7.27% 3.50%     4.11%
Without Sales Load [Member] | Class C          
Average Annual Return [Line Items]          
Average Annual Return, Percent 6.65% 2.78%     3.39%
Without Sales Load [Member] | Class F          
Average Annual Return [Line Items]          
Average Annual Return, Percent 7.60% 3.80%   4.58%  
Without Sales Load [Member] | Class I          
Average Annual Return [Line Items]          
Average Annual Return, Percent 7.71% 3.82%     4.43%
Without Sales Load [Member] | Class R          
Average Annual Return [Line Items]          
Average Annual Return, Percent 7.17% 3.29%     3.90%
Without Sales Load [Member] | Class Z          
Average Annual Return [Line Items]          
Average Annual Return, Percent 7.73% 3.79%     4.41%
Class A | ICE BofA U.S. All Capital Securities Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         ICE BofA U.S. All Capital Securities Index
Average Annual Return, Percent 8.64% 2.50%     4.58%
Class C | ICE BofA U.S. All Capital Securities Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         ICE BofA U.S. All Capital Securities Index
Average Annual Return, Percent 8.64% 2.50%     4.58%
Class F | ICE BofA U.S. All Capital Securities Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name     ICE BofA U.S. All Capital Securities Index    
Average Annual Return, Percent 8.64% 2.50%   3.94%  
Class I | ICE BofA U.S. All Capital Securities Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         ICE BofA U.S. All Capital Securities Index
Average Annual Return, Percent 8.64% 2.50%     4.58%
Class R | ICE BofA U.S. All Capital Securities Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         ICE BofA U.S. All Capital Securities Index
Average Annual Return, Percent 8.64% 2.50%     4.58%
Class Z | ICE BofA U.S. All Capital Securities Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         ICE BofA U.S. All Capital Securities Index
Average Annual Return, Percent 8.64% 2.50%     4.58%
Class A | ICE BofA 1-3 Year U.S. Corporate Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         ICE BofA 1-3 Year U.S. Corporate Index
Average Annual Return, Percent 4.33% 2.59%     2.70%
Class A | Blended Benchmark          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         Blended Benchmark1
Average Annual Return, Percent 7.21% 3.62%     4.65%
Class C | ICE BofA 1-3 Year U.S. Corporate Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         ICE BofA 1-3 Year U.S. Corporate Index
Average Annual Return, Percent 4.33% 2.59%     2.70%
Class C | Blended Benchmark          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         Blended Benchmark1
Average Annual Return, Percent 7.21% 3.62%     4.65%
Class F | ICE BofA 1-3 Year U.S. Corporate Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name     ICE BofA 1-3 Year U.S. Corporate Index    
Average Annual Return, Percent 4.33% 2.59%   2.59%  
Class F | Blended Benchmark          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name     Blended Benchmark1    
Average Annual Return, Percent 7.21% 3.62%   4.61%  
Class I | ICE BofA 1-3 Year U.S. Corporate Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         ICE BofA 1-3 Year U.S. Corporate Index
Average Annual Return, Percent 4.33% 2.59%     2.70%
Class I | Blended Benchmark          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         Blended Benchmark1
Average Annual Return, Percent 7.21% 3.62%     4.65%
Class R | ICE BofA 1-3 Year U.S. Corporate Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         ICE BofA 1-3 Year U.S. Corporate Index
Average Annual Return, Percent 4.33% 2.59%     2.70%
Class R | Blended Benchmark          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         Blended Benchmark1
Average Annual Return, Percent 7.21% 3.62%     4.65%
Class Z | ICE BofA 1-3 Year U.S. Corporate Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         ICE BofA 1-3 Year U.S. Corporate Index
Average Annual Return, Percent 4.33% 2.59%     2.70%
Class Z | Blended Benchmark          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name         Blended Benchmark1
Average Annual Return, Percent 7.21% 3.62%     4.65%