S000079321 [Member] Expense Example - Parnassus Growth Equity Fund |
Dec. 31, 2025
USD ($)
|
|---|---|
| Investor Shares | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 86 |
| Expense Example, with Redemption, 3 Years | 365 |
| Expense Example, with Redemption, 5 Years | 664 |
| Expense Example, with Redemption, 10 Years | 1,517 |
| Institutional Shares | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 64 |
| Expense Example, with Redemption, 3 Years | 297 |
| Expense Example, with Redemption, 5 Years | 547 |
| Expense Example, with Redemption, 10 Years | $ 1,266 |