v3.25.3
SIGNIFICANT ACCOUNTING POLICIES - Summary of Changes in Shares (Details) - Franklin Responsibly Sourced Gold ETF [Member] - USD ($)
 3 Months Ended 6 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
SIGNIFICANT ACCOUNTING POLICIES [Abstract]        
Beginning Balance (in Shares) 5,200,000 2,200,000 4,500,000 [1] 2,100,000
Beginning Balance [2] $ 167,478,346 $ 49,437,841 $ 136,536,467 $ 46,291,354
Creation of Shares (in Shares) 2,200,000 250,000 3,250,000 350,000
Creation of Shares [2] $ 107,852,712 $ 8,531,890 $ 153,402,627 $ 11,678,377
Redemption of Shares (in Shares) 0 0 (350,000) 0
Redemption of Shares [2] $ 0 $ 0 $ (14,608,036) $ 0
Ending Balance (in Shares) 7,400,000 [1] 2,450,000 7,400,000 [1] 2,450,000
Ending Balance [2] $ 275,331,058 $ 57,969,731 $ 275,331,058 $ 57,969,731
[1] No par value, unlimited amount authorized.
[2] Dollar amount of balance represents the cumulative fair value of creation of shares less the redemption of shares, at the time of the specific creation or redemption.