v3.26.3
Average Annual Total Returns
 12 Months Ended 60 Months Ended 120 Months Ended 146 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Bloomberg US Universal Bond Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent 7.58% 0.06% 2.44%  
S&P UBS Leveraged Loan Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent 5.94% 6.37% 5.78%  
Morningstar LSTA US Leveraged Loan Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent [1] 5.90% 6.42% 5.83%  
A        
Prospectus [Line Items]        
Average Annual Return, Percent (0.12%) 3.93% 3.92%  
Performance Inception Date       Oct. 31, 2013
A | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Percent (3.09%) 1.37% 1.71%  
Performance Inception Date       Oct. 31, 2013
A | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Percent (0.11%) 1.87% 2.00%  
Performance Inception Date       Oct. 31, 2013
C        
Prospectus [Line Items]        
Average Annual Return, Percent 3.21% 4.20% 3.66%  
Performance Inception Date       Oct. 31, 2013
I        
Prospectus [Line Items]        
Average Annual Return, Percent 5.29% 5.28% 4.67%  
Performance Inception Date       Oct. 31, 2013
I2        
Prospectus [Line Items]        
Average Annual Return, Percent 5.30% 5.28% 4.74%  
Performance Inception Date       Oct. 31, 2013
[1] The fund added this additional benchmark to assist investors in better understanding the fund’s performance relative to a comparable benchmark in the mutual fund industry.