v3.26.1
Average Annual Total Returns
 12 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
April - Limited Term Diversified_Pro | Nomura Limited-Term Diversified Income Fund | Bloomberg US Aggregate Index (reflects no deduction for fees, expenses, or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent   7.30% (0.36%) 2.01%
April - Limited Term Diversified_Pro | Nomura Limited-Term Diversified Income Fund | Bloomberg 1-3 Year US Government/Credit Index (reflects no deduction for fees, expenses, or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent   5.35% 1.97% 2.09%
April - Limited Term Diversified_Pro | Nomura Limited-Term Diversified Income Fund | A        
Prospectus [Line Items]        
Average Annual Return, Percent   2.25% 1.34% 1.87%
April - Limited Term Diversified_Pro | Nomura Limited-Term Diversified Income Fund | A | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Percent   0.61% 0.06% 0.80%
April - Limited Term Diversified_Pro | Nomura Limited-Term Diversified Income Fund | A | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Percent   1.31% 0.46% 0.96%
April - Limited Term Diversified_Pro | Nomura Limited-Term Diversified Income Fund | C        
Prospectus [Line Items]        
Average Annual Return, Percent   3.33% 1.10% 1.33%
April - Limited Term Diversified_Pro | Nomura Limited-Term Diversified Income Fund | R        
Prospectus [Line Items]        
Average Annual Return, Percent   4.86% 1.60% 1.82%
April - Limited Term Diversified_Pro | Nomura Limited-Term Diversified Income Fund | Institutional        
Prospectus [Line Items]        
Average Annual Return, Percent   5.38% 2.11% 2.34%
April - Limited Term Diversified_Pro | Nomura Limited-Term Diversified Income Fund | R6        
Prospectus [Line Items]        
Average Annual Return, Percent   5.47% 2.18% 2.34%
Performance Inception Date May 01, 2017      
April - Tax Free Oregon_Pro | Nomura Tax-Free Oregon Fund | Bloomberg Municipal Bond Index (reflects no deduction for fees, expenses, or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent   4.25% 0.80% 2.34%
April - Tax Free Oregon_Pro | Nomura Tax-Free Oregon Fund | A        
Prospectus [Line Items]        
Average Annual Return, Percent   (2.07%) (0.22%) 1.34%
April - Tax Free Oregon_Pro | Nomura Tax-Free Oregon Fund | A | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Percent   (2.07%) (0.22%) 1.34%
April - Tax Free Oregon_Pro | Nomura Tax-Free Oregon Fund | A | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Percent   0.19% 0.52% 1.68%
April - Tax Free Oregon_Pro | Nomura Tax-Free Oregon Fund | Institutional        
Prospectus [Line Items]        
Average Annual Return, Percent   2.80% 0.96% 2.03%