GABELLI GLOBAL CONTENT & CONNECTIVITY FUND Concentration Risk [Member] Equity Risk [Member] Inflation Risk [Member] Foreign Securities Risk [Member] Emerging Markets Risk [Member] Interests Rate Risk [Member] Currency Risk [Member] Depositary Receipts [Member] Industry Risk [Member] Growth Stock Risk [Member] Issuer Risk [Member] Management Risk [Member] Non Diversification Risk [Member] Smaller Capitalization Risk [Member] Large Capitalization Companies Risk [Member] Market Risk [Member] The Gabelli Global Growth Fund GABELLI INTERNATIONAL SMALL CAP FUND The Gabelli Global Rising Income and Dividend Fund Convertible Securities [Member] Credit Risk For Convertible Securities And Fixed Income Securities [Member] Event Driven Risk [Member] Lower Rated Securities [Member] Gabelli Global Mini Mites Fund Equity Market Risk [Member] Micro Cap Company Risk [Member] Liquidity Risk [Member] Limited Operating History [Member] GABELLI GLOBAL CONTENT & CONNECTIVITY FUND CLASS AAA GABELLI GLOBAL CONTENT & CONNECTIVITY FUND CLASS A GABELLI GLOBAL CONTENT & CONNECTIVITY FUND CLASS I The Gabelli Global Growth Fund CLASS AAA The Gabelli Global Growth Fund CLASS A The Gabelli Global Growth Fund CLASS I GABELLI INTERNATIONAL SMALL CAP FUND CLASS AAA GABELLI INTERNATIONAL SMALL CAP FUND CLASS A GABELLI INTERNATIONAL SMALL CAP FUND CLASS I The Gabelli Global Rising Income and Dividend Fund CLASS AAA The Gabelli Global Rising Income and Dividend Fund CLASS A The Gabelli Global Rising Income and Dividend Fund CLASS I Gabelli Global Mini Mites Fund CLASS AAA Gabelli Global Mini Mites Fund CLASS A Gabelli Global Mini Mites Fund CLASS I MSCI AC World Communication Services Index MSCI AC World Index Lipper Global Large Cap Growth Fund Classification MSCI EAFE Small Cap Index MSCI World Index S&P Developed SmallCap Index