v3.26.1
SIGNIFICANT ACCOUNTING POLICIES - Summary of Changes in Shares (Details) - Franklin Responsibly Sourced Gold Etf [Member] - USD ($)
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
SIGNIFICANT ACCOUNTING POLICIES [Abstract]    
Beginning Balance (in Shares) 4,500,000 [1] 2,100,000
Beginning Balance [2] $ 136,536,467 $ 46,291,354
Creation of Shares (in Shares) 4,300,000 3,150,000
Creation of Shares [2] $ 215,191,777 $ 116,418,428
Redemption of Shares (in Shares) (1,050,000) (750,000)
Redemption of Shares [2] $ (58,651,177) $ (26,173,315)
Ending Balance (in Shares) [1] 7,750,000 4,500,000
Ending Balance [2] $ 293,077,067 $ 136,536,467
[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.