Prospectus Investor Class [Member] Average Annual Total Returns - Prospectus-Investor Class |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Bloomberg U.S. Aggregate Bond Index (The returns for the indices are before any deduction for taxes, fees or expenses.) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 7.30% | (0.36%) | 2.01% |
| ICE BofA 1-3 Year U.S. Treasury Index (The returns for the indices are before any deduction for taxes, fees or expenses.) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 5.10% | 1.79% | 1.84% |
| Payden Low Duration Fund (Investor Class) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 5.71% | 2.51% | 2.44% |
| Payden Low Duration Fund (Investor Class) | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 3.86% | 1.27% | 1.42% |
| Payden Low Duration Fund (Investor Class) | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 3.35% | 1.27% | 1.42% |