Shareholder Report, Line Graph (Details) 196650_Osterweis Fund_TF_TSR Annual {TF} - USD ($) |
12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2023 |
Mar. 31, 2022 |
Mar. 31, 2021 |
Mar. 31, 2020 |
Mar. 31, 2019 |
Mar. 31, 2018 |
Mar. 31, 2017 |
Mar. 31, 2016 |
Mar. 31, 2026 |
|
| Osterweis Fund | |||||||||||
| Account Value [Line Items] | |||||||||||
| Accumulated Value | $ 23,168 | $ 23,244 | $ 18,311 | $ 20,373 | $ 19,312 | $ 12,583 | $ 12,956 | $ 11,794 | $ 11,133 | $ 10,000 | $ 25,768 |
| S&P 500 [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | S&P 500 | ||||||||||
| Accumulated Value | $ 31,913 | $ 29,480 | $ 22,698 | $ 24,599 | $ 21,271 | $ 13,605 | $ 14,625 | $ 13,357 | $ 11,717 | $ 10,000 | $ 37,594 |