v3.26.1
Shareholder Report, Average Annual Return (Details)
 12 Months Ended 60 Months Ended 108 Months Ended 120 Months Ended
May 31, 2026
May 31, 2026
May 31, 2026
May 31, 2026
Without Sales Load [Member] | C000183992        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.52% 3.46% 4.63%  
Without Sales Load [Member] | C000183993        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.36% 3.30%   5.42%
Without Sales Load [Member] | C000183994        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.68% 3.59%   5.73%
Bloomberg U.S. Aggregate Bond Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 5.13% 0.17% 1.74%  
Bloomberg U.S. Aggregate Bond Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 5.13% 0.17%   1.70%
Bloomberg U.S. Aggregate Bond Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 5.13% 0.17%   1.70%
ICE BofA US High Yield Constrained Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.44% 4.36% 4.95%  
ICE BofA US High Yield Constrained Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.44% 4.36%   5.78%
ICE BofA US High Yield Constrained Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.44% 4.36%   5.78%