Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
|
| S P 500 Index [Member] | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 25.02% | 14.53% | 13.10% |
| THE GABELLI ASSET FUND CLASS AAA | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 8.16% | 7.12% | 7.24% |
| THE GABELLI ASSET FUND CLASS AAA | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 4.74% | 4.54% | 4.67% |
| THE GABELLI ASSET FUND CLASS AAA | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 7.30% | 5.39% | 5.33% |
| THE GABELLI ASSET FUND CLASS A | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 1.92% | 5.86% | 6.61% |
| THE GABELLI ASSET FUND CLASS C | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 6.35% | 6.32% | 6.44% |
| THE GABELLI ASSET FUND CLASS I | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 8.42% | 7.38% | 7.51% |