v3.26.1
Mortgage-Backed Securities ETF Investment Objectives and Goals - Mortgage-Backed Securities ETF
Feb. 28, 2026
Prospectus [Line Items]  
Risk/Return [Heading] <span style="font-family:Arial Narrow;font-size:11pt;font-weight:bold;">Ticker: JMTG</span>
Objective [Heading] <span style="font-family:Arial Narrow;font-size:11pt;font-weight:bold;">What is the goal of the Fund?</span>
Objective, Primary [Text Block] The Fund seeks to maximize total return by investing primarily in a diversified portfolio of debt securities backed by pools of residential and/or commercial mortgages.