Annual Fund Operating Expenses |
Apr. 30, 2025 |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GABELLI GLOBAL CONTENT & CONNECTIVITY FUND | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Fee Waiver or Reimbursement over Assets, Date of Termination | April 30, 2026 | |||||||||||
| GABELLI GLOBAL CONTENT & CONNECTIVITY FUND | GABELLI GLOBAL CONTENT & CONNECTIVITY FUND CLASS AAA | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||||||||
| Other Expenses (as a percentage of Assets): | 0.48% | |||||||||||
| Expenses (as a percentage of Assets) | 1.73% | [1] | ||||||||||
| Fee Waiver or Reimbursement | (0.83%) | [1] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.90% | |||||||||||
| GABELLI GLOBAL CONTENT & CONNECTIVITY FUND | GABELLI GLOBAL CONTENT & CONNECTIVITY FUND CLASS A | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||||||||
| Other Expenses (as a percentage of Assets): | 0.48% | |||||||||||
| Expenses (as a percentage of Assets) | 1.73% | [1] | ||||||||||
| Fee Waiver or Reimbursement | (0.83%) | [1] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.90% | |||||||||||
| GABELLI GLOBAL CONTENT & CONNECTIVITY FUND | GABELLI GLOBAL CONTENT & CONNECTIVITY FUND CLASS I | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.00% | |||||||||||
| Other Expenses (as a percentage of Assets): | 0.48% | |||||||||||
| Expenses (as a percentage of Assets) | 1.48% | [1] | ||||||||||
| Fee Waiver or Reimbursement | (0.58%) | [1] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.90% | |||||||||||
| The Gabelli Global Growth Fund | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Fee Waiver or Reimbursement over Assets, Date of Termination | April 30, 2026 | |||||||||||
| The Gabelli Global Growth Fund | The Gabelli Global Growth Fund CLASS AAA | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||||||||
| Other Expenses (as a percentage of Assets): | 0.23% | |||||||||||
| Expenses (as a percentage of Assets) | 1.48% | [2] | ||||||||||
| Fee Waiver or Reimbursement | (0.58%) | [2] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.90% | |||||||||||
| The Gabelli Global Growth Fund | The Gabelli Global Growth Fund CLASS A | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||||||||
| Other Expenses (as a percentage of Assets): | 0.23% | |||||||||||
| Expenses (as a percentage of Assets) | 1.48% | [2] | ||||||||||
| Fee Waiver or Reimbursement | (0.58%) | [2] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.90% | |||||||||||
| The Gabelli Global Growth Fund | The Gabelli Global Growth Fund CLASS I | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.00% | |||||||||||
| Other Expenses (as a percentage of Assets): | 0.23% | |||||||||||
| Expenses (as a percentage of Assets) | 1.23% | [2] | ||||||||||
| Fee Waiver or Reimbursement | (0.33%) | [2] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.90% | |||||||||||
| GABELLI INTERNATIONAL SMALL CAP FUND | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Fee Waiver or Reimbursement over Assets, Date of Termination | April 30, 2026 | |||||||||||
| GABELLI INTERNATIONAL SMALL CAP FUND | GABELLI INTERNATIONAL SMALL CAP FUND CLASS AAA | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||||||||
| Other Expenses (as a percentage of Assets): | 3.10% | |||||||||||
| Expenses (as a percentage of Assets) | 4.35% | [3] | ||||||||||
| Fee Waiver or Reimbursement | (3.43%) | [3] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.92% | |||||||||||
| GABELLI INTERNATIONAL SMALL CAP FUND | GABELLI INTERNATIONAL SMALL CAP FUND CLASS A | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||||||||
| Other Expenses (as a percentage of Assets): | 3.10% | |||||||||||
| Expenses (as a percentage of Assets) | 4.35% | [3] | ||||||||||
| Fee Waiver or Reimbursement | (3.43%) | [3] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.92% | |||||||||||
| GABELLI INTERNATIONAL SMALL CAP FUND | GABELLI INTERNATIONAL SMALL CAP FUND CLASS I | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.00% | |||||||||||
| Other Expenses (as a percentage of Assets): | 3.10% | |||||||||||
| Expenses (as a percentage of Assets) | 4.10% | [3] | ||||||||||
| Fee Waiver or Reimbursement | (3.18%) | [3] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.92% | |||||||||||
| The Gabelli Global Rising Income and Dividend Fund | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Fee Waiver or Reimbursement over Assets, Date of Termination | April 30, 2026 | |||||||||||
| The Gabelli Global Rising Income and Dividend Fund | The Gabelli Global Rising Income and Dividend Fund CLASS AAA | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||||||||
| Other Expenses (as a percentage of Assets): | 0.36% | |||||||||||
| Expenses (as a percentage of Assets) | 1.61% | [4] | ||||||||||
| Fee Waiver or Reimbursement | (0.71%) | [4] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.90% | |||||||||||
| The Gabelli Global Rising Income and Dividend Fund | The Gabelli Global Rising Income and Dividend Fund CLASS A | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||||||||
| Other Expenses (as a percentage of Assets): | 0.36% | |||||||||||
| Expenses (as a percentage of Assets) | 1.61% | [4] | ||||||||||
| Fee Waiver or Reimbursement | (0.71%) | [4] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.90% | |||||||||||
| The Gabelli Global Rising Income and Dividend Fund | The Gabelli Global Rising Income and Dividend Fund CLASS I | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.00% | |||||||||||
| Other Expenses (as a percentage of Assets): | 0.36% | |||||||||||
| Expenses (as a percentage of Assets) | 1.36% | [4] | ||||||||||
| Fee Waiver or Reimbursement | (0.46%) | [4] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.90% | |||||||||||
| Gabelli Global Mini Mites Fund | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Fee Waiver or Reimbursement over Assets, Date of Termination | April 30, 2026 | |||||||||||
| Gabelli Global Mini Mites Fund | Gabelli Global Mini Mites Fund CLASS AAA | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||||||||
| Other Expenses (as a percentage of Assets): | 1.37% | |||||||||||
| Acquired Fund Fees and Expenses | 0.01% | |||||||||||
| Expenses (as a percentage of Assets) | 2.63% | [5] | ||||||||||
| Fee Waiver or Reimbursement | (1.72%) | [5] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.91% | |||||||||||
| Gabelli Global Mini Mites Fund | Gabelli Global Mini Mites Fund CLASS A | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||||||||
| Other Expenses (as a percentage of Assets): | 1.37% | |||||||||||
| Acquired Fund Fees and Expenses | 0.01% | |||||||||||
| Expenses (as a percentage of Assets) | 2.63% | [5] | ||||||||||
| Fee Waiver or Reimbursement | (1.72%) | [5] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.91% | |||||||||||
| Gabelli Global Mini Mites Fund | Gabelli Global Mini Mites Fund CLASS I | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Management Fees (as a percentage of Assets) | 1.00% | |||||||||||
| Distribution and Service (12b-1) Fees | 0.00% | |||||||||||
| Other Expenses (as a percentage of Assets): | 1.37% | |||||||||||
| Acquired Fund Fees and Expenses | 0.01% | |||||||||||
| Expenses (as a percentage of Assets) | 2.38% | [5] | ||||||||||
| Fee Waiver or Reimbursement | (1.47%) | [5] | ||||||||||
| Net Expenses (as a percentage of Assets) | 0.91% | |||||||||||
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