v3.25.4
Expense Example
Jan. 28, 2026
USD ($)
THE GABELLI SMALL CAP GROWTH FUND | THE GABELLI SMALL CAP GROWTH FUND CLASS AAA  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 140
Expense Example, with Redemption, 3 Years 437
Expense Example, with Redemption, 5 Years 755
Expense Example, with Redemption, 10 Years 1,657
THE GABELLI SMALL CAP GROWTH FUND | THE GABELLI SMALL CAP GROWTH FUND CLASS A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 707
Expense Example, with Redemption, 3 Years 986
Expense Example, with Redemption, 5 Years 1,286
Expense Example, with Redemption, 10 Years 2,136
THE GABELLI SMALL CAP GROWTH FUND | THE GABELLI SMALL CAP GROWTH FUND CLASS C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 316
Expense Example, with Redemption, 3 Years 667
Expense Example, with Redemption, 5 Years 1,144
Expense Example, with Redemption, 10 Years 2,462
THE GABELLI SMALL CAP GROWTH FUND | THE GABELLI SMALL CAP GROWTH FUND CLASS I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 115
Expense Example, with Redemption, 3 Years 359
Expense Example, with Redemption, 5 Years 622
Expense Example, with Redemption, 10 Years 1,374
THE GABELLI EQUITY INCOME FUND | THE GABELLI EQUITY INCOME FUND CLASS AAA  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 144
Expense Example, with Redemption, 3 Years 447
Expense Example, with Redemption, 5 Years 772
Expense Example, with Redemption, 10 Years 1,691
THE GABELLI EQUITY INCOME FUND | THE GABELLI EQUITY INCOME FUND CLASS A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 710
Expense Example, with Redemption, 3 Years 995
Expense Example, with Redemption, 5 Years 1,301
Expense Example, with Redemption, 10 Years 2,167
THE GABELLI EQUITY INCOME FUND | THE GABELLI EQUITY INCOME FUND CLASS C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 319
Expense Example, with Redemption, 3 Years 676
Expense Example, with Redemption, 5 Years 1,159
Expense Example, with Redemption, 10 Years 2,493
THE GABELLI EQUITY INCOME FUND | THE GABELLI EQUITY INCOME FUND CLASS I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 118
Expense Example, with Redemption, 3 Years 368
Expense Example, with Redemption, 5 Years 637
Expense Example, with Redemption, 10 Years 1,408
THE GABELLI FOCUSED GROWTH AND INCOME FUND | THE GABELLI FOCUSED GROWTH AND INCOME FUND CLASS AAA  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 169
Expense Example, with Redemption, 3 Years 523
Expense Example, with Redemption, 5 Years 901
Expense Example, with Redemption, 10 Years 1,965
THE GABELLI FOCUSED GROWTH AND INCOME FUND | THE GABELLI FOCUSED GROWTH AND INCOME FUND CLASS A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 695
Expense Example, with Redemption, 3 Years 1,031
Expense Example, with Redemption, 5 Years 1,389
Expense Example, with Redemption, 10 Years 2,395
THE GABELLI FOCUSED GROWTH AND INCOME FUND | THE GABELLI FOCUSED GROWTH AND INCOME FUND CLASS C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 344
Expense Example, with Redemption, 3 Years 751
Expense Example, with Redemption, 5 Years 1,285
Expense Example, with Redemption, 10 Years 2,746
THE GABELLI FOCUSED GROWTH AND INCOME FUND | THE GABELLI FOCUSED GROWTH AND INCOME FUND CLASS I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 82
Expense Example, with Redemption, 3 Years 387
Expense Example, with Redemption, 5 Years 713
Expense Example, with Redemption, 10 Years 1,637
The Gabelli Global Financial Services Fund | The Gabelli Global Financial Services Fund CLASS AAA  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 127
Expense Example, with Redemption, 3 Years 475
Expense Example, with Redemption, 5 Years 847
Expense Example, with Redemption, 10 Years 1,892
The Gabelli Global Financial Services Fund | The Gabelli Global Financial Services Fund CLASS A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 695
Expense Example, with Redemption, 3 Years 1,023
Expense Example, with Redemption, 5 Years 1,373
Expense Example, with Redemption, 10 Years 2,357
The Gabelli Global Financial Services Fund | The Gabelli Global Financial Services Fund CLASS C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 303
Expense Example, with Redemption, 3 Years 704
Expense Example, with Redemption, 5 Years 1,232
Expense Example, with Redemption, 10 Years 2,678
The Gabelli Global Financial Services Fund | The Gabelli Global Financial Services Fund CLASS I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 102
Expense Example, with Redemption, 3 Years 397
Expense Example, with Redemption, 5 Years 714
Expense Example, with Redemption, 10 Years $ 1,613