v3.25.2
Shareholder Report, Holdings (Details)
Jun. 30, 2025
C000050720 | AAA/Aaa  
Holdings [Line Items]  
Percent of Total Investments 11.70%
C000050720 | AA/Aa  
Holdings [Line Items]  
Percent of Total Investments 18.30%
C000050720 | A  
Holdings [Line Items]  
Percent of Total Investments 21.00%
C000050720 | BBB/Baa  
Holdings [Line Items]  
Percent of Total Investments 20.70%
C000050720 | BB/Ba  
Holdings [Line Items]  
Percent of Total Investments 5.40%
C000050720 | B  
Holdings [Line Items]  
Percent of Total Investments 7.80%
C000050720 | CCC/Caa  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000050720 | CC/Ca  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000050720 | N/R  
Holdings [Line Items]  
Percent of Total Investments 14.70%
C000050720 | Corporate Bonds  
Holdings [Line Items]  
Percent of Total Investments 26.60%
C000050720 | Investment Companies  
Holdings [Line Items]  
Percent of Total Investments 21.80%
C000050720 | Floating Rate Loan Interests  
Holdings [Line Items]  
Percent of Total Investments 13.60%
C000050720 | Common Stocks  
Holdings [Line Items]  
Percent of Total Investments 12.60%
C000050720 | Asset-Backed Securities  
Holdings [Line Items]  
Percent of Total Investments 11.00%
C000050720 | Equity-Linked Notes  
Holdings [Line Items]  
Percent of Total Investments 7.30%
C000050720 | Non-Agency Mortgage-Backed Securities  
Holdings [Line Items]  
Percent of Total Investments 6.80%
C000050720 | Foreign Government Obligations  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000050720 | Preferred Securities  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000050720 | Fixed Rate Loan Interests  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000050720 | Other  
Holdings [Line Items]  
Percent of Total Investments 0.00%
C000050721 | AAA/Aaa  
Holdings [Line Items]  
Percent of Total Investments 11.70%
C000050721 | AA/Aa  
Holdings [Line Items]  
Percent of Total Investments 18.30%
C000050721 | A  
Holdings [Line Items]  
Percent of Total Investments 21.00%
C000050721 | BBB/Baa  
Holdings [Line Items]  
Percent of Total Investments 20.70%
C000050721 | BB/Ba  
Holdings [Line Items]  
Percent of Total Investments 5.40%
C000050721 | B  
Holdings [Line Items]  
Percent of Total Investments 7.80%
C000050721 | CCC/Caa  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000050721 | CC/Ca  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000050721 | N/R  
Holdings [Line Items]  
Percent of Total Investments 14.70%
C000050721 | Corporate Bonds  
Holdings [Line Items]  
Percent of Total Investments 26.60%
C000050721 | Investment Companies  
Holdings [Line Items]  
Percent of Total Investments 21.80%
C000050721 | Floating Rate Loan Interests  
Holdings [Line Items]  
Percent of Total Investments 13.60%
C000050721 | Common Stocks  
Holdings [Line Items]  
Percent of Total Investments 12.60%
C000050721 | Asset-Backed Securities  
Holdings [Line Items]  
Percent of Total Investments 11.00%
C000050721 | Equity-Linked Notes  
Holdings [Line Items]  
Percent of Total Investments 7.30%
C000050721 | Non-Agency Mortgage-Backed Securities  
Holdings [Line Items]  
Percent of Total Investments 6.80%
C000050721 | Foreign Government Obligations  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000050721 | Preferred Securities  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000050721 | Fixed Rate Loan Interests  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000050721 | Other  
Holdings [Line Items]  
Percent of Total Investments 0.00%
C000050722 | AAA/Aaa  
Holdings [Line Items]  
Percent of Total Investments 11.70%
C000050722 | AA/Aa  
Holdings [Line Items]  
Percent of Total Investments 18.30%
C000050722 | A  
Holdings [Line Items]  
Percent of Total Investments 21.00%
C000050722 | BBB/Baa  
Holdings [Line Items]  
Percent of Total Investments 20.70%
C000050722 | BB/Ba  
Holdings [Line Items]  
Percent of Total Investments 5.40%
C000050722 | B  
Holdings [Line Items]  
Percent of Total Investments 7.80%
C000050722 | CCC/Caa  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000050722 | CC/Ca  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000050722 | N/R  
Holdings [Line Items]  
Percent of Total Investments 14.70%
C000050722 | Corporate Bonds  
Holdings [Line Items]  
Percent of Total Investments 26.60%
C000050722 | Investment Companies  
Holdings [Line Items]  
Percent of Total Investments 21.80%
C000050722 | Floating Rate Loan Interests  
Holdings [Line Items]  
Percent of Total Investments 13.60%
C000050722 | Common Stocks  
Holdings [Line Items]  
Percent of Total Investments 12.60%
C000050722 | Asset-Backed Securities  
Holdings [Line Items]  
Percent of Total Investments 11.00%
C000050722 | Equity-Linked Notes  
Holdings [Line Items]  
Percent of Total Investments 7.30%
C000050722 | Non-Agency Mortgage-Backed Securities  
Holdings [Line Items]  
Percent of Total Investments 6.80%
C000050722 | Foreign Government Obligations  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000050722 | Preferred Securities  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000050722 | Fixed Rate Loan Interests  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000050722 | Other  
Holdings [Line Items]  
Percent of Total Investments 0.00%
C000174022 | AAA/Aaa  
Holdings [Line Items]  
Percent of Total Investments 11.70%
C000174022 | AA/Aa  
Holdings [Line Items]  
Percent of Total Investments 18.30%
C000174022 | A  
Holdings [Line Items]  
Percent of Total Investments 21.00%
C000174022 | BBB/Baa  
Holdings [Line Items]  
Percent of Total Investments 20.70%
C000174022 | BB/Ba  
Holdings [Line Items]  
Percent of Total Investments 5.40%
C000174022 | B  
Holdings [Line Items]  
Percent of Total Investments 7.80%
C000174022 | CCC/Caa  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000174022 | CC/Ca  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000174022 | N/R  
Holdings [Line Items]  
Percent of Total Investments 14.70%
C000174022 | Corporate Bonds  
Holdings [Line Items]  
Percent of Total Investments 26.60%
C000174022 | Investment Companies  
Holdings [Line Items]  
Percent of Total Investments 21.80%
C000174022 | Floating Rate Loan Interests  
Holdings [Line Items]  
Percent of Total Investments 13.60%
C000174022 | Common Stocks  
Holdings [Line Items]  
Percent of Total Investments 12.60%
C000174022 | Asset-Backed Securities  
Holdings [Line Items]  
Percent of Total Investments 11.00%
C000174022 | Equity-Linked Notes  
Holdings [Line Items]  
Percent of Total Investments 7.30%
C000174022 | Non-Agency Mortgage-Backed Securities  
Holdings [Line Items]  
Percent of Total Investments 6.80%
C000174022 | Foreign Government Obligations  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000174022 | Preferred Securities  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000174022 | Fixed Rate Loan Interests  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000174022 | Other  
Holdings [Line Items]  
Percent of Total Investments 0.00%
C000220895 | Fixed-Income Funds  
Holdings [Line Items]  
Percent of Total Investments 98.50%
C000220895 | Short-Term Securities  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000220896 | Fixed-Income Funds  
Holdings [Line Items]  
Percent of Total Investments 98.50%
C000220896 | Short-Term Securities  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000220897 | Fixed-Income Funds  
Holdings [Line Items]  
Percent of Total Investments 98.40%
C000220897 | Short-Term Securities  
Holdings [Line Items]  
Percent of Total Investments 1.60%
C000220898 | Fixed-Income Funds  
Holdings [Line Items]  
Percent of Total Investments 98.40%
C000220898 | Short-Term Securities  
Holdings [Line Items]  
Percent of Total Investments 1.60%