v3.26.1
Shareholder Report, Line Graph (Details) - USD ($)
 11 Months Ended 12 Months Ended 23 Months Ended 24 Months Ended 35 Months Ended 36 Months Ended 47 Months Ended 48 Months Ended 59 Months Ended 60 Months Ended 71 Months Ended 72 Months Ended 84 Months Ended 96 Months Ended 108 Months Ended 120 Months Ended
Jun. 03, 2020
Apr. 30, 2016
Apr. 30, 2021
Apr. 30, 2017
Apr. 30, 2022
Apr. 30, 2018
Apr. 30, 2023
Apr. 30, 2019
Apr. 30, 2024
Apr. 30, 2020
Apr. 30, 2025
Apr. 30, 2021
Apr. 30, 2026
Apr. 30, 2022
Apr. 30, 2023
Apr. 30, 2024
Apr. 30, 2025
Apr. 30, 2026
Class A                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   Class A
Accumulated Value   $ 9,800   $ 10,440   $ 10,743   $ 11,148   $ 11,239   $ 12,341   $ 11,830 $ 11,688 $ 12,759 $ 13,663 $ 14,656
Class C                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   Class C
Accumulated Value   10,000   10,590   10,816   11,148   11,161   12,171   11,584 11,366 12,308 13,091 $ 13,961
Class F                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                         Class F          
Accumulated Value $ 10,000   $ 10,809   $ 10,387   $ 10,287   $ 11,272   $ 12,106   $ 13,027          
Class I                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   Class I
Accumulated Value   100,000   106,893   110,369   114,810   116,164   127,883   123,015 121,843 133,348 143,219 $ 154,267
Class R                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   Class R
Accumulated Value   10,000   10,642   10,925   11,309   11,376   12,473   11,931 11,757 12,804 13,685 $ 14,666
Class Z                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   Class Z
Accumulated Value   10,000   10,689   11,037   11,481   11,617   12,789   12,289 12,158 13,309 14,296 $ 15,401
Class A | ICE BofA U.S. All Capital Securities Index                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   ICE BofA U.S. All Capital Securities Index
Accumulated Value   10,000   10,793   11,065   11,810   12,143   13,823   12,708 12,437 13,505 14,398 $ 15,642
Class C | ICE BofA U.S. All Capital Securities Index                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   ICE BofA U.S. All Capital Securities Index
Accumulated Value   10,000   10,793   11,065   11,810   12,143   13,823   12,708 12,437 13,505 14,398 $ 15,642
Class F | ICE BofA U.S. All Capital Securities Index                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                         ICE BofA U.S. All Capital Securities Index          
Accumulated Value 10,000   11,106   10,209   9,992   10,850   11,567   $ 12,567          
Class I | ICE BofA U.S. All Capital Securities Index                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   ICE BofA U.S. All Capital Securities Index
Accumulated Value   100,000   107,930   110,652   118,099   121,433   138,233   127,076 124,374 135,051 143,977 $ 156,417
Class R | ICE BofA U.S. All Capital Securities Index                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   ICE BofA U.S. All Capital Securities Index
Accumulated Value   10,000   10,793   11,065   11,810   12,143   13,823   12,708 12,437 13,505 14,398 $ 15,642
Class Z | ICE BofA U.S. All Capital Securities Index                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   ICE BofA U.S. All Capital Securities Index
Accumulated Value   10,000   10,793   11,065   11,810   12,143   13,823   12,708 12,437 13,505 14,398 $ 15,642
Class A | ICE BofA 1-3 Year U.S. Corporate Index                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   ICE BofA 1-3 Year U.S. Corporate Index
Accumulated Value   10,000   10,171   10,237   10,660   11,072   11,483   11,014 11,200 11,683 12,506 $ 13,048
Class A | Blended Benchmark                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   Blended Benchmark1
Accumulated Value   10,000   10,769   10,984   11,549   11,809   13,186   12,556 12,394 13,595 14,691 $ 15,750
Class C | ICE BofA 1-3 Year U.S. Corporate Index                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   ICE BofA 1-3 Year U.S. Corporate Index
Accumulated Value   10,000   10,171   10,237   10,660   11,072   11,483   11,014 11,200 11,683 12,506 $ 13,048
Class C | Blended Benchmark                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   Blended Benchmark1
Accumulated Value   10,000   10,769   10,984   11,549   11,809   13,186   12,556 12,394 13,595 14,691 $ 15,750
Class F | ICE BofA 1-3 Year U.S. Corporate Index                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                         ICE BofA 1-3 Year U.S. Corporate Index          
Accumulated Value 10,000   10,233   9,815   9,981   10,411   11,145   $ 11,627          
Class F | Blended Benchmark                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                         Blended Benchmark1          
Accumulated Value $ 10,000   $ 10,927   $ 10,405   $ 10,270   $ 11,266   $ 12,174   $ 13,052          
Class I | ICE BofA 1-3 Year U.S. Corporate Index                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   ICE BofA 1-3 Year U.S. Corporate Index
Accumulated Value   100,000   101,713   102,371   106,602   110,719   114,828   110,137 112,002 116,831 125,060 $ 130,478
Class I | Blended Benchmark                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   Blended Benchmark1
Accumulated Value   100,000   107,692   109,842   115,494   118,086   131,856   125,558 123,936 135,952 146,908 $ 157,498
Class R | ICE BofA 1-3 Year U.S. Corporate Index                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   ICE BofA 1-3 Year U.S. Corporate Index
Accumulated Value   10,000   10,171   10,237   10,660   11,072   11,483   11,014 11,200 11,683 12,506 $ 13,048
Class R | Blended Benchmark                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   Blended Benchmark1
Accumulated Value   10,000   10,769   10,984   11,549   11,809   13,186   12,556 12,394 13,595 14,691 $ 15,750
Class Z | ICE BofA 1-3 Year U.S. Corporate Index                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   ICE BofA 1-3 Year U.S. Corporate Index
Accumulated Value   10,000   10,171   10,237   10,660   11,072   11,483   11,014 11,200 11,683 12,506 $ 13,048
Class Z | Blended Benchmark                                    
Account Value [Line Items]                                    
Line Graph and Table Measure Name                                   Blended Benchmark1
Accumulated Value   $ 10,000   $ 10,769   $ 10,984   $ 11,549   $ 11,809   $ 13,186   $ 12,556 $ 12,394 $ 13,595 $ 14,691 $ 15,750