1001 - Disclosure - N-2 - [Fee Table] link:presentationLink link:definitionLink link:calculationLink 1002 - Disclosure - N-2 - [Investment Objectives] link:presentationLink link:definitionLink link:calculationLink 1003 - Disclosure - N-2 - [Risk Factors] link:presentationLink link:definitionLink link:calculationLink Common Shares [Member] JPMAMSFII Maximum Repurchase Fee [Member] General Risks [Member] Investment-Related Risks [Member] Inflation/Deflation Risk [Member] Covenant-Lite Obligations [Member] Highly Volatile Markets [Member] Risks of Securities Activities [Member] Investment Style Risk [Member] Equity Security [Member] Equity Securities [Member] Bonds and Other Fixed Income Securities [Member] Short Sales [Member] Mortgage-Backed Securities [Member] Mortgage Backed Securities [Member] Non U S Securities [Member] Non-U.S. Securities [Member] Political and Exchange Risks [Member] Settlement Risk [Member] Foreign Currency Transactions [Member] Concentration of Investments; Non-Diversified Portfolios [Member] Industry and Sector Focus Risk [Member] Smaller Capitalization Issuers [Member] Distressed Securities [Member] Non-Diversified Status [Member] Leverage [Member] Repurchase and Reverse Repurchase Agreements [Member] Purchasing Initial Public Offerings [Member] Derivatives [Member] Options and Futures [Member] Call and Put Options on Securities Indices [Member] Warrants and Rights [Member] Swap Agreements [Member] Structured Note Risk [Member] Registered Investment Company Securities [Member] Exchange Traded Funds ETFs [Member] Exchange-Traded Funds ("ETFs") [Member] Lending Portfolio Securities [Member] When-Issued and Forward Commitment Securities [Member] Restricted and Illiquid Investments [Member] Counterparty Credit Risk [Member] Risks of Fund of Hedge Funds Structure [Member] Other Risks [Member]