Shareholder Report, Line Graph (Details) 196845_Osterweis Opportunity 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 Opportunity Fund | |||||||||||
| Account Value [Line Items] | |||||||||||
| Accumulated Value | $ 31,473 | $ 33,835 | $ 26,788 | $ 29,823 | $ 34,735 | $ 16,441 | $ 17,794 | $ 16,013 | $ 12,204 | $ 10,000 | $ 35,670 |
| 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 |
| Russell 2000 Growth [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Russell 2000 Growth | ||||||||||
| Accumulated Value | $ 20,587 | $ 21,638 | $ 17,980 | $ 20,111 | $ 23,474 | $ 12,342 | $ 15,158 | $ 14,596 | $ 12,303 | $ 10,000 | $ 25,440 |