Shareholder Report | 6 Months Ended |
Jun. 30, 2024 USD ($) Holding |
Shareholder Report [Line Items] | |
Document Type | N-CSRS |
Amendment Flag | false |
Registrant Name | Gabelli Investor Funds, Inc. |
Entity Central Index Key | 0000893783 |
Entity Investment Company Type | N-1A |
Document Period End Date | Jun. 30, 2024 |
C000002886 | |
Shareholder Report [Line Items] | |
Fund Name | The Gabelli ABC Fund |
Class Name | Class AAA |
Trading Symbol | GABCX |
Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Gabelli ABC Fund (the Fund) for the period of January 1, 2024 to June 30, 2024. |
Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
Additional Information [Text Block] | You can find additional information about the Fund at www.gabelli.com |
Additional Information Phone Number | 800-GABELLI (800-422-3554) |
Additional Information Website | www.gabelli.com</span>" id="sjs-B19"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: justify;">www.gabelli.com</span> |
Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class Name Costs of a $10k Investment Costs Paid as a % of a $10k Investment The Gabelli ABC Fund - Class AAA $46 0.92% |
Expenses Paid, Amount | $ 46 |
Expense Ratio, Percent | 0.92% |
Factors Affecting Performance [Text Block] | How did the Fund perform? During the six months ended June 30, 2024, the Gabelli ABC Fund underperformed its broad-based benchmark, the S&P 500 yet outperformed its comparative benchmarks, ICE BofA 3 Month U.S. Treasury Bill Index and the Lipper U.S. Treasury Money Market Fund Average. During the period, the market experienced an increase of almost 20% of deal volume, with technology, energy and power, and financials the most active sectors. Private Equity deals increased substantially, and mega-deals dominated, while smaller deals (below $500 million) declined 28%. |
Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. |
Line Graph [Table Text Block] | The Gabelli ABC Fund - Class AAA S&P 500 Index ICE BofA 3 Month U.S. Treasury Bill Index Lipper U.S. Treasury Money-Market Fund Average 6/14 10,000 10,000 10,000 10,000 6/15 10,146 10,742 10,002 10,001 6/16 10,332 11,171 10,021 10,003 6/17 10,671 13,170 10,070 10,019 6/18 10,820 15,063 10,207 10,108 6/19 11,070 16,632 10,443 10,304 6/20 11,088 17,881 10,613 10,422 6/21 12,037 25,175 10,615 10,424 6/22 11,738 22,501 10,633 10,434 6/23 12,337 26,910 11,760 10,794 6/24 13,067 33,519 12,489 11,349 |
Average Annual Return [Table Text Block] | Fund 6 months 1 Year 5 Year 10 Year The Gabelli ABC Fund - Class AAA 2.78% 5.92% 3.37% 2.71% S&P 500 Index 15.29% 24.56% 15.05% 12.86% ICE BofA 3 Month U.S. Treasury Bill Index 2.63% 5.40% 2.16% 1.51% Lipper U.S. Treasury Money-Market Fund Average 2.53% 5.14% 1.95% 1.27% |
No Deduction of Taxes [Text Block] | The table and graph presented above do not reflect the deduction of taxes a shareholder would pay on fund distributions or the redemption of fund shares. |
Performance Table Market Index Changed [Text Block] | |
Updated Performance Information Location [Text Block] | Updated Location: Visit www.confluence.com/funds for more recent performance information. |
AssetsNet | $ 478,516,286 |
Holdings Count | Holding | 223 |
Advisory Fees Paid, Amount | $ 1,150,528 |
InvestmentCompanyPortfolioTurnover | 105% |
Additional Fund Statistics [Text Block] | Fund Statistics Total Net Assets $478,516,286 Number of Portfolio Holdings 223 Portfolio Turnover Rate 105% Management Fees $1,150,528 |
Holdings [Text Block] | Industry Allocation (% of net assets) Industry Weighting . U.S. Government Obligations 40.2% Building and Construction - Long 24.2% Building and Construction - Short - Energy and Utilities 6.8% Health Care 4.9% Financial Services 3.2% Telecommunications 2.2% Computer Software and Services 2.2% Entertainment 2.0% Other Industry sectors 10.0% Other Assets and Liabilities (Net) 24.7% |
Largest Holdings [Text Block] | Top 10 Holdings (% of net assets) Top 10 Lennar Corp. Cl B 24.2% Lennar Corp. Cl A - Equitrans Midstream Corp. 1.7% Everbridge Inc. 1.3% KKR & Co. Inc. 1.2% Olink Holding AB 1.1% PNM Resources Inc. 0.9% Juniper Networks Inc. 0.9% Fox Corp. Cl B 0.9% SurModics Inc. 0.8% |
Material Fund Change [Text Block] | |
Updated Prospectus Phone Number | 800-GABELLI (800-422-3554) |
Updated Prospectus Email Address | info@gabelli.com</span>" id="sjs-B39"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: justify;">info@gabelli.com</span> |
Updated Prospectus Web Address | www.gabelli.com</span>" id="sjs-B40"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: justify;">www.gabelli.com</span> |
C000050409 | |
Shareholder Report [Line Items] | |
Fund Name | The Gabelli ABC Fund |
Class Name | Advisor Class |
Trading Symbol | GADVX |
Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Gabelli ABC Fund (the Fund) for the period of January 1, 2024 to June 30, 2024. |
Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
Additional Information [Text Block] | You can find additional information about the Fund at www.gabelli.com |
Additional Information Phone Number | 800-GABELLI (800-422-3554) |
Additional Information Website | www.gabelli.com</span>" id="sjs-B50"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: justify;">www.gabelli.com</span> |
Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class Name Costs of a $10k Investment Costs Paid as a % of a $10k Investment The Gabelli ABC Fund - Advisor Class $59 1.17% |
Expenses Paid, Amount | $ 59 |
Expense Ratio, Percent | 1.17% |
Factors Affecting Performance [Text Block] | How did the Fund perform? During the six months ended June 30, 2024, the Gabelli ABC Fund underperformed its broad-based benchmark, the S&P 500 yet outperformed its comparative benchmarks, ICE BofA 3 Month U.S. Treasury Bill Index and the Lipper U.S. Treasury Money Market Fund Average. During the period, the market experienced an increase of almost 20% of deal volume, with technology, energy and power, and financials the most active sectors. Private Equity deals increased substantially, and mega-deals dominated, while smaller deals (below $500 million) declined 28%. |
Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. |
Line Graph [Table Text Block] | The Gabelli ABC Fund - Advisor Class S&P 500 Index ICE BofA 3 Month U.S. Treasury Bill Index Lipper U.S. Treasury Money-Market Fund Average 6/14 10,000 10,000 10,000 10,000 6/15 10,110 10,742 10,002 10,001 6/16 10,273 11,171 10,021 10,003 6/17 10,576 13,170 10,070 10,019 6/18 10,705 15,063 10,207 10,108 6/19 10,925 16,632 10,443 10,304 6/20 10,910 17,881 10,613 10,422 6/21 11,817 25,175 10,615 10,424 6/22 11,502 22,501 10,633 10,434 6/23 12,056 26,910 11,760 10,794 6/24 12,736 33,519 12,489 11,349 |
Average Annual Return [Table Text Block] | Fund 6 months 1 Year 5 Year 10 Year The Gabelli ABC Fund - Advisor Class 2.71% 5.64% 3.11% 2.45% S&P 500 Index 15.29% 24.56% 15.05% 12.86% ICE BofA 3 Month U.S. Treasury Bill Index 2.63% 5.40% 2.16% 1.51% Lipper U.S. Treasury Money-Market Fund Average 2.53% 5.14% 1.95% 1.27% |
No Deduction of Taxes [Text Block] | The table and graph presented above do not reflect the deduction of taxes a shareholder would pay on fund distributions or the redemption of fund shares. |
Performance Table Market Index Changed [Text Block] | |
Updated Performance Information Location [Text Block] | Updated Location: Visit www.confluence.com/funds for more recent performance information. |
AssetsNet | $ 478,516,286 |
Holdings Count | Holding | 223 |
Advisory Fees Paid, Amount | $ 1,150,528 |
InvestmentCompanyPortfolioTurnover | 105% |
Additional Fund Statistics [Text Block] | Fund Statistics Total Net Assets $478,516,286 Number of Portfolio Holdings 223 Portfolio Turnover Rate 105% Management Fees $1,150,528 |
Holdings [Text Block] | Industry Allocation (% of net assets) Industry Weighting . U.S. Government Obligations 40.2% Building and Construction - Long 24.2% Building and Construction - Short - Energy and Utilities 6.8% Health Care 4.9% Financial Services 3.2% Telecommunications 2.2% Computer Software and Services 2.2% Entertainment 2.0% Other Industry sectors 10.0% Other Assets and Liabilities (Net) 24.7% |
Largest Holdings [Text Block] | Top 10 Holdings (% of net assets) Top 10 Lennar Corp. Cl B 24.2% Lennar Corp. Cl A - Equitrans Midstream Corp. 1.7% Everbridge Inc. 1.3% KKR & Co. Inc. 1.2% Olink Holding AB 1.1% PNM Resources Inc. 0.9% Juniper Networks Inc. 0.9% Fox Corp. Cl B 0.9% SurModics Inc. 0.8% |
Material Fund Change [Text Block] | |
Updated Prospectus Phone Number | 800-GABELLI (800-422-3554) |
Updated Prospectus Email Address | info@gabelli.com</span>" id="sjs-B70"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: justify;">info@gabelli.com</span> |
Updated Prospectus Web Address | www.gabelli.com</span>" id="sjs-B71"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: justify;">www.gabelli.com</span> |