v3.25.2
Shareholder Report, Holdings (Details)
Apr. 30, 2025
C000029053 |  
Holdings [Line Items]  
Percent of Total Investments 11.60%
C000029053 | Credit Rating Other Line  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000029053 | B  
Holdings [Line Items]  
Percent of Total Investments 22.30%
C000029053 | B-  
Holdings [Line Items]  
Percent of Total Investments 21.10%
C000029053 | B+  
Holdings [Line Items]  
Percent of Total Investments 12.30%
C000029053 | BB  
Holdings [Line Items]  
Percent of Total Investments 7.90%
C000029053 | BB-  
Holdings [Line Items]  
Percent of Total Investments 9.30%
C000029053 | BB+  
Holdings [Line Items]  
Percent of Total Investments 3.00%
C000029053 | BBB-  
Holdings [Line Items]  
Percent of Total Investments 3.70%
C000029053 | BBB+  
Holdings [Line Items]  
Percent of Total Investments 0.20%
C000029053 | CC  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000029053 | CCC  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000029053 | CCC-  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000029053 | CCC+  
Holdings [Line Items]  
Percent of Total Investments 4.50%
C000029053 | AssetBank Loans  
Holdings [Line Items]  
Percent of Total Investments 84.20%
C000029053 | AssetShort-Term Investments  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000029053 | AssetCorporate Bonds  
Holdings [Line Items]  
Percent of Total Investments 5.20%
C000029053 | AssetAsset Backed Securities  
Holdings [Line Items]  
Percent of Total Investments 3.60%
C000029053 | AssetCommon Stocks  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000029053 | AssetWarrants  
Holdings [Line Items]  
Percent of Total Investments 0.00%
C000029055 |  
Holdings [Line Items]  
Percent of Total Investments 11.60%
C000029055 | Credit Rating Other Line  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000029055 | B  
Holdings [Line Items]  
Percent of Total Investments 22.30%
C000029055 | B-  
Holdings [Line Items]  
Percent of Total Investments 21.10%
C000029055 | B+  
Holdings [Line Items]  
Percent of Total Investments 12.30%
C000029055 | BB  
Holdings [Line Items]  
Percent of Total Investments 7.90%
C000029055 | BB-  
Holdings [Line Items]  
Percent of Total Investments 9.30%
C000029055 | BB+  
Holdings [Line Items]  
Percent of Total Investments 3.00%
C000029055 | BBB-  
Holdings [Line Items]  
Percent of Total Investments 3.70%
C000029055 | BBB+  
Holdings [Line Items]  
Percent of Total Investments 0.20%
C000029055 | CC  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000029055 | CCC  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000029055 | CCC-  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000029055 | CCC+  
Holdings [Line Items]  
Percent of Total Investments 4.50%
C000029055 | AssetBank Loans  
Holdings [Line Items]  
Percent of Total Investments 84.20%
C000029055 | AssetShort-Term Investments  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000029055 | AssetCorporate Bonds  
Holdings [Line Items]  
Percent of Total Investments 5.20%
C000029055 | AssetAsset Backed Securities  
Holdings [Line Items]  
Percent of Total Investments 3.60%
C000029055 | AssetCommon Stocks  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000029055 | AssetWarrants  
Holdings [Line Items]  
Percent of Total Investments 0.00%
C000029052 |  
Holdings [Line Items]  
Percent of Total Investments 11.60%
C000029052 | Credit Rating Other Line  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000029052 | B  
Holdings [Line Items]  
Percent of Total Investments 22.30%
C000029052 | B-  
Holdings [Line Items]  
Percent of Total Investments 21.10%
C000029052 | B+  
Holdings [Line Items]  
Percent of Total Investments 12.30%
C000029052 | BB  
Holdings [Line Items]  
Percent of Total Investments 7.90%
C000029052 | BB-  
Holdings [Line Items]  
Percent of Total Investments 9.30%
C000029052 | BB+  
Holdings [Line Items]  
Percent of Total Investments 3.00%
C000029052 | BBB-  
Holdings [Line Items]  
Percent of Total Investments 3.70%
C000029052 | BBB+  
Holdings [Line Items]  
Percent of Total Investments 0.20%
C000029052 | CC  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000029052 | CCC  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000029052 | CCC-  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000029052 | CCC+  
Holdings [Line Items]  
Percent of Total Investments 4.50%
C000029052 | AssetBank Loans  
Holdings [Line Items]  
Percent of Total Investments 84.20%
C000029052 | AssetShort-Term Investments  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000029052 | AssetCorporate Bonds  
Holdings [Line Items]  
Percent of Total Investments 5.20%
C000029052 | AssetAsset Backed Securities  
Holdings [Line Items]  
Percent of Total Investments 3.60%
C000029052 | AssetCommon Stocks  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000029052 | AssetWarrants  
Holdings [Line Items]  
Percent of Total Investments 0.00%
C000118186 |  
Holdings [Line Items]  
Percent of Total Investments 12.10%
C000118186 | Credit Rating Other Line  
Holdings [Line Items]  
Percent of Total Investments 0.70%
C000118186 | B  
Holdings [Line Items]  
Percent of Total Investments 18.70%
C000118186 | B-  
Holdings [Line Items]  
Percent of Total Investments 16.30%
C000118186 | B+  
Holdings [Line Items]  
Percent of Total Investments 13.70%
C000118186 | BB  
Holdings [Line Items]  
Percent of Total Investments 9.50%
C000118186 | BB-  
Holdings [Line Items]  
Percent of Total Investments 11.60%
C000118186 | BB+  
Holdings [Line Items]  
Percent of Total Investments 7.10%
C000118186 | BBB-  
Holdings [Line Items]  
Percent of Total Investments 2.20%
C000118186 | CC  
Holdings [Line Items]  
Percent of Total Investments 0.40%
C000118186 | CCC  
Holdings [Line Items]  
Percent of Total Investments 1.70%
C000118186 | CCC-  
Holdings [Line Items]  
Percent of Total Investments 0.60%
C000118186 | CCC+  
Holdings [Line Items]  
Percent of Total Investments 4.90%
C000118186 | AAA  
Holdings [Line Items]  
Percent of Total Investments 0.50%
C000118186 | AssetBank Loans  
Holdings [Line Items]  
Percent of Total Investments 53.70%
C000118186 | AssetShort-Term Investments  
Holdings [Line Items]  
Percent of Total Investments 8.10%
C000118186 | AssetCorporate Bonds  
Holdings [Line Items]  
Percent of Total Investments 34.50%
C000118186 | AssetAsset Backed Securities  
Holdings [Line Items]  
Percent of Total Investments 3.00%
C000118186 | AssetCommon Stocks  
Holdings [Line Items]  
Percent of Total Investments 0.70%
C000118186 | AssetWarrants  
Holdings [Line Items]  
Percent of Total Investments 0.00%
C000120097 |  
Holdings [Line Items]  
Percent of Total Investments 12.10%
C000120097 | Credit Rating Other Line  
Holdings [Line Items]  
Percent of Total Investments 0.70%
C000120097 | B  
Holdings [Line Items]  
Percent of Total Investments 18.70%
C000120097 | B-  
Holdings [Line Items]  
Percent of Total Investments 16.30%
C000120097 | B+  
Holdings [Line Items]  
Percent of Total Investments 13.70%
C000120097 | BB  
Holdings [Line Items]  
Percent of Total Investments 9.50%
C000120097 | BB-  
Holdings [Line Items]  
Percent of Total Investments 11.60%
C000120097 | BB+  
Holdings [Line Items]  
Percent of Total Investments 7.10%
C000120097 | BBB-  
Holdings [Line Items]  
Percent of Total Investments 2.20%
C000120097 | CC  
Holdings [Line Items]  
Percent of Total Investments 0.40%
C000120097 | CCC  
Holdings [Line Items]  
Percent of Total Investments 1.70%
C000120097 | CCC-  
Holdings [Line Items]  
Percent of Total Investments 0.60%
C000120097 | CCC+  
Holdings [Line Items]  
Percent of Total Investments 4.90%
C000120097 | AAA  
Holdings [Line Items]  
Percent of Total Investments 0.50%
C000120097 | AssetBank Loans  
Holdings [Line Items]  
Percent of Total Investments 53.70%
C000120097 | AssetShort-Term Investments  
Holdings [Line Items]  
Percent of Total Investments 8.10%
C000120097 | AssetCorporate Bonds  
Holdings [Line Items]  
Percent of Total Investments 34.50%
C000120097 | AssetAsset Backed Securities  
Holdings [Line Items]  
Percent of Total Investments 3.00%
C000120097 | AssetCommon Stocks  
Holdings [Line Items]  
Percent of Total Investments 0.70%
C000120097 | AssetWarrants  
Holdings [Line Items]  
Percent of Total Investments 0.00%
C000120098 |  
Holdings [Line Items]  
Percent of Total Investments 12.10%
C000120098 | Credit Rating Other Line  
Holdings [Line Items]  
Percent of Total Investments 0.70%
C000120098 | B  
Holdings [Line Items]  
Percent of Total Investments 18.70%
C000120098 | B-  
Holdings [Line Items]  
Percent of Total Investments 16.30%
C000120098 | B+  
Holdings [Line Items]  
Percent of Total Investments 13.70%
C000120098 | BB  
Holdings [Line Items]  
Percent of Total Investments 9.50%
C000120098 | BB-  
Holdings [Line Items]  
Percent of Total Investments 11.60%
C000120098 | BB+  
Holdings [Line Items]  
Percent of Total Investments 7.10%
C000120098 | BBB-  
Holdings [Line Items]  
Percent of Total Investments 2.20%
C000120098 | CC  
Holdings [Line Items]  
Percent of Total Investments 0.40%
C000120098 | CCC  
Holdings [Line Items]  
Percent of Total Investments 1.70%
C000120098 | CCC-  
Holdings [Line Items]  
Percent of Total Investments 0.60%
C000120098 | CCC+  
Holdings [Line Items]  
Percent of Total Investments 4.90%
C000120098 | AAA  
Holdings [Line Items]  
Percent of Total Investments 0.50%
C000120098 | AssetBank Loans  
Holdings [Line Items]  
Percent of Total Investments 53.70%
C000120098 | AssetShort-Term Investments  
Holdings [Line Items]  
Percent of Total Investments 8.10%
C000120098 | AssetCorporate Bonds  
Holdings [Line Items]  
Percent of Total Investments 34.50%
C000120098 | AssetAsset Backed Securities  
Holdings [Line Items]  
Percent of Total Investments 3.00%
C000120098 | AssetCommon Stocks  
Holdings [Line Items]  
Percent of Total Investments 0.70%
C000120098 | AssetWarrants  
Holdings [Line Items]  
Percent of Total Investments 0.00%