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Prospectus SI Class [Member] Average Annual Total Returns - Prospectus-SI Class
12 Months Ended 60 Months Ended 95 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Bloomberg U.S. Aggregate Bond Index (The returns for the index are before any deduction for taxes, fees or expenses.)      
Prospectus [Line Items]      
Average Annual Return, Percent 7.30% (0.36%) 1.87%
Performance Inception Date     Jan. 22, 2018
Payden Core Bond Fund (SI Class)      
Prospectus [Line Items]      
Average Annual Return, Percent 7.70% 0.26% 2.07%
Performance Inception Date     Jan. 22, 2018
Payden Core Bond Fund (SI Class) | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 5.56% (1.22%) 0.96%
Performance Inception Date     Jan. 22, 2018
Payden Core Bond Fund (SI Class) | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 4.52% (1.22%) 0.96%
Performance Inception Date     Jan. 22, 2018