Average Annual Total Returns
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12 Months Ended |
60 Months Ended |
120 Months Ended |
Jun. 30, 2026 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
| S&P 500® Index (reflects no deduction for fees, expenses, or taxes) |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
S&P 500® Index (reflects no deduction for fees, expenses or taxes)
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| Average Annual Return, Percent |
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17.88%
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14.42%
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14.82%
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| Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes) |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)
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| Average Annual Return, Percent |
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7.30%
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(0.36%)
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2.01%
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| 60% S&P 500® Index/40% Bloomberg U.S. Aggregate Bond Index Blend (reflects no deduction for fees, expenses or taxes) |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
60% S&P 500® Index/40% Bloomberg U.S. Aggregate Bond Index Blend (reflects no deduction for fees, expenses or taxes)
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| Average Annual Return, Percent |
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13.70%
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8.47%
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9.78%
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| Russell 2000 Growth Index (reflects no deduction for fees, expenses or taxes) |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
Russell 2000 Growth Index (reflects no deduction for fees, expenses or taxes)
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| Average Annual Return, Percent |
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13.01%
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3.18%
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9.57%
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| Osterweis Fund Investor Class |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
Return Before Taxes
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| Average Annual Return, Percent |
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12.87%
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7.90%
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10.31%
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| Osterweis Fund Investor Class | After Taxes on Distributions |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
Return After Taxes on Distributions
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| Average Annual Return, Percent |
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11.35%
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5.90%
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7.27%
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| Osterweis Fund Investor Class | After Taxes on Distributions and Sales |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
Return After Taxes on Distributions and Sale of Fund Shares
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| Average Annual Return, Percent |
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8.70%
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5.96%
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7.44%
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| Osterweis Strategic Income Fund Investor Class |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
Return Before Taxes
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| Average Annual Return, Percent |
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5.47%
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4.89%
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5.47%
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| Osterweis Strategic Income Fund Investor Class | After Taxes on Distributions |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
Return After Taxes on Distributions
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| Average Annual Return, Percent |
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3.23%
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2.82%
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3.43%
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| Osterweis Strategic Income Fund Investor Class | After Taxes on Distributions and Sales |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
Return After Taxes on Distributions and Sale of Fund Shares
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| Average Annual Return, Percent |
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3.23%
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2.85%
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3.32%
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| Osterweis Growth & Income Fund Investor Class |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
Return Before Taxes
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| Average Annual Return, Percent |
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10.63%
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7.03%
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8.77%
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| Osterweis Growth & Income Fund Investor Class | After Taxes on Distributions |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
Return After Taxes on Distributions
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| Average Annual Return, Percent |
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9.41%
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5.11%
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7.01%
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| Osterweis Growth & Income Fund Investor Class | After Taxes on Distributions and Sales |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
Return After Taxes on Distributions and Sale of Fund Shares
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| Average Annual Return, Percent |
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6.62%
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5.01%
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6.53%
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| Osterweis Opportunity Fund Investor Class |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
Return Before Taxes
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| Average Annual Return, Percent |
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0.27%
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1.18%
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13.38%
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| Osterweis Opportunity Fund Investor Class | After Taxes on Distributions |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
Return After Taxes on Distributions
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| Average Annual Return, Percent |
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(0.26%)
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(0.17%)
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11.20%
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| Osterweis Opportunity Fund Investor Class | After Taxes on Distributions and Sales |
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| Prospectus [Line Items] |
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| Average Annual Return, Label [Optional Text] |
Return After Taxes on Distributions and Sale of Fund Shares
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| Average Annual Return, Percent |
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0.55%
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0.57%
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10.26%
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