v3.26.1
Expense Example
Apr. 30, 2026
USD ($)
GABELLI GLOBAL CONTENT & CONNECTIVITY FUND | GABELLI GLOBAL CONTENT & CONNECTIVITY FUND CLASS AAA  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 93
Expense Example, with Redemption, 3 Years 457
Expense Example, with Redemption, 5 Years 845
Expense Example, with Redemption, 10 Years 1,933
GABELLI GLOBAL CONTENT & CONNECTIVITY FUND | GABELLI GLOBAL CONTENT & CONNECTIVITY FUND CLASS A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 663
Expense Example, with Redemption, 3 Years 1,006
Expense Example, with Redemption, 5 Years 1,372
Expense Example, with Redemption, 10 Years 2,398
GABELLI GLOBAL CONTENT & CONNECTIVITY FUND | GABELLI GLOBAL CONTENT & CONNECTIVITY FUND CLASS I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 93
Expense Example, with Redemption, 3 Years 404
Expense Example, with Redemption, 5 Years 737
Expense Example, with Redemption, 10 Years 1,679
The Gabelli Global Growth Fund | The Gabelli Global Growth Fund CLASS AAA  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 92
Expense Example, with Redemption, 3 Years 409
Expense Example, with Redemption, 5 Years 749
Expense Example, with Redemption, 10 Years 1,710
The Gabelli Global Growth Fund | The Gabelli Global Growth Fund CLASS A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 662
Expense Example, with Redemption, 3 Years 961
Expense Example, with Redemption, 5 Years 1,281
Expense Example, with Redemption, 10 Years 2,187
The Gabelli Global Growth Fund | The Gabelli Global Growth Fund CLASS I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 92
Expense Example, with Redemption, 3 Years 355
Expense Example, with Redemption, 5 Years 639
Expense Example, with Redemption, 10 Years 1,449
GABELLI INTERNATIONAL SMALL CAP FUND | GABELLI INTERNATIONAL SMALL CAP FUND CLASS AAA  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 93
Expense Example, with Redemption, 3 Years 934
Expense Example, with Redemption, 5 Years 1,792
Expense Example, with Redemption, 10 Years 4,013
GABELLI INTERNATIONAL SMALL CAP FUND | GABELLI INTERNATIONAL SMALL CAP FUND CLASS A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 663
Expense Example, with Redemption, 3 Years 1,455
Expense Example, with Redemption, 5 Years 2,263
Expense Example, with Redemption, 10 Years 4,356
GABELLI INTERNATIONAL SMALL CAP FUND | GABELLI INTERNATIONAL SMALL CAP FUND CLASS I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 93
Expense Example, with Redemption, 3 Years 884
Expense Example, with Redemption, 5 Years 1,695
Expense Example, with Redemption, 10 Years 3,811
The Gabelli Global Rising Income and Dividend Fund | The Gabelli Global Rising Income and Dividend Fund CLASS AAA  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 92
Expense Example, with Redemption, 3 Years 436
Expense Example, with Redemption, 5 Years 804
Expense Example, with Redemption, 10 Years 1,840
The Gabelli Global Rising Income and Dividend Fund | The Gabelli Global Rising Income and Dividend Fund CLASS A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 662
Expense Example, with Redemption, 3 Years 987
Expense Example, with Redemption, 5 Years 1,334
Expense Example, with Redemption, 10 Years 2,311
The Gabelli Global Rising Income and Dividend Fund | The Gabelli Global Rising Income and Dividend Fund CLASS I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 92
Expense Example, with Redemption, 3 Years 383
Expense Example, with Redemption, 5 Years 696
Expense Example, with Redemption, 10 Years 1,584
Gabelli Global Mini Mites Fund | Gabelli Global Mini Mites Fund CLASS AAA  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 92
Expense Example, with Redemption, 3 Years 569
Expense Example, with Redemption, 5 Years 1,073
Expense Example, with Redemption, 10 Years 2,461
Gabelli Global Mini Mites Fund | Gabelli Global Mini Mites Fund CLASS A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 662
Expense Example, with Redemption, 3 Years 1,112
Expense Example, with Redemption, 5 Years 1,587
Expense Example, with Redemption, 10 Years 2,894
Gabelli Global Mini Mites Fund | Gabelli Global Mini Mites Fund CLASS I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 92
Expense Example, with Redemption, 3 Years 517
Expense Example, with Redemption, 5 Years 968
Expense Example, with Redemption, 10 Years $ 2,220