Shareholder Report, Average Annual Return (Details) 196625_Osterweis Strategic Income Fund_TF_TSR Annual {TF} |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2026 |
Mar. 31, 2026 |
|
| Without Sales Load [Member] | Osterweis Strategic Income Fund | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | OSTIX (without sales charge) | ||
| Average Annual Return, Percent | 4.69% | 4.64% | 5.41% |
| Bloomberg US Aggregate Bond [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg US Aggregate Bond | ||
| Average Annual Return, Percent | 4.35% | 0.31% | 1.70% |