020100 - Document - Risk/Return Summary {Unlabeled} - ARBITRAGE FUND - ARBITRAGE FUND link:presentationLink link:definitionLink link:calculationLink 020101 - Disclosure - Risk/Return Detail Data {Elements} - ARBITRAGE FUND - ARBITRAGE FUND link:presentationLink link:definitionLink link:calculationLink 020102 - Document - Risk/Return Summary {Unlabeled} - WATER ISLAND EVENT-DRIVEN FUND - WATER ISLAND EVENT-DRIVEN FUND link:presentationLink link:definitionLink link:calculationLink 020103 - Disclosure - Risk/Return Detail Data {Elements} - WATER ISLAND EVENT-DRIVEN FUND - WATER ISLAND EVENT-DRIVEN FUND link:presentationLink link:definitionLink link:calculationLink 020104 - Document - Risk/Return Summary {Unlabeled} - WATER ISLAND CREDIT OPPORTUNITIES FUND - WATER ISLAND CREDIT OPPORTUNITIES FUND link:presentationLink link:definitionLink link:calculationLink 020105 - Disclosure - Risk/Return Detail Data {Elements} - WATER ISLAND CREDIT OPPORTUNITIES FUND - WATER ISLAND CREDIT OPPORTUNITIES FUND link:presentationLink link:definitionLink link:calculationLink 020106 - Document - Risk/Return Summary {Unlabeled} - ALTSHARES MERGER ARBITRAGE ETF - AltShares Merger Arbitrage ETF link:presentationLink link:definitionLink link:calculationLink 020107 - Disclosure - Risk/Return Detail Data {Elements} - ALTSHARES MERGER ARBITRAGE ETF - AltShares Merger Arbitrage ETF link:presentationLink link:definitionLink link:calculationLink 020108 - Document - Risk/Return Summary {Unlabeled} - ALTSHARES EVENT-DRIVEN ETF - AltShares Event-Driven ETF link:presentationLink link:definitionLink link:calculationLink 020109 - Disclosure - Risk/Return Detail Data {Elements} - ALTSHARES EVENT-DRIVEN ETF - AltShares Event-Driven ETF link:presentationLink link:definitionLink link:calculationLink