v3.25.1
Fees and Expenses - THE GABELLI UTILITIES FUND
Apr. 30, 2025
USD ($)
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses of the Fund:
Expense Narrative [Text Block]

This table describes the fees and expenses that you may pay if you buy, hold or sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. You may qualify for sales charge discounts on Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of the Gabelli family of mutual funds. More information about these and other discounts is available from your financial intermediary and in the section entitled “Classes of Shares” on page 20 of the prospectus and in Appendix A, “Sales Charge Reductions and Waivers Available through Certain Intermediaries,” attached to the Fund’s prospectus and “Distribution Plans” on page 32 of the Fund’s statement of additional information.
Expense Breakpoint Discounts [Text] You may qualify for sales charge discounts on Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of the Gabelli family of mutual funds.
Expense Breakpoint, Minimum Investment Required [Amount] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment):
Shareholder Fees [Table]
    Class AAA
Shares		     Class A
Shares		     Class C
Shares		     Class I
Shares		  
Shareholder Fees
(fees paid directly from your investment):		                                        
Maximum Sales Charge (Load) on Purchases
(as a percentage of offering price)		       None           5.75 %         None           None    
Maximum Deferred Sales Charge (Load)
(as a percentage of redemption or offering price, whichever is lower)		       None           None           1.00 %         None    
Maximum Sales Charge (Load) Imposed on Reinvested Dividends
(as percentage of amount invested)		       None           None           None           None    
Redemption Fee
(as a percentage of amount redeemed for shares held 7 days or less)		       2.00 %         2.00 %         2.00 %         2.00 %  
Exchange Fee       None           None           None           None    
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment):
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment):		                                                
Management Fees       1.00 %         1.00 %         1.00 %         1.00 %  
Distribution and Service (Rule 12b-1) Fees       0.25 %         0.25 %         1.00 %         None    
Other Expenses       0.07 %         0.07 %         0.07 %         0.07 %  
Total Annual Fund Operating Expenses       1.32 %         1.32 %         2.07 %         1.07 %  

 

 
Expense Example [Heading] Expense Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The example assumes that you invest $10,000 in the Fund for the time periods indicated, and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

 
Expense Example, With Redemption [Table]
    1 Year     3 Years     5 Years     10 Years  
Class AAA Shares     $ 134       $ 418       $ 723       $ 1,589  
Class A Shares     $ 702       $ 969       $ 1,256       $ 2,072  
Class C Shares     $ 310       $ 649       $ 1,114       $ 2,401  
Class I Shares     $ 109       $ 340       $ 589       $ 1,304  

 
Expense Example, No Redemption Narrative [Text Block]

You would pay the following expenses if you did not redeem your shares of the Fund:

 
Expense Example, No Redemption [Table]
    1 Year     3 Years     5 Years     10 Years  
Class AAA Shares     $ 134       $ 418       $ 723       $ 1,589  
Class A Shares     $ 702       $ 969       $ 1,256       $ 2,072  
Class C Shares     $ 210       $ 649       $ 1,114       $ 2,401  
Class I Shares     $ 109       $ 340       $ 589       $ 1,304  

 
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in lower total returns when the Fund’s shares are held in a taxable account. These costs, which are not reflected in the annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 1% of the average value of its portfolio.
Portfolio Turnover, Rate 1.00%