v3.25.4
Combined Statements of Operations - USD ($)
 3 Months Ended 9 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Expenses        
Sponsor's fee $ 160,945 $ 38,441 $ 342,757 $ 92,294
Total expenses 160,945 38,441 342,757 92,294
Net investment loss (160,945) (38,441) (342,757) (92,294)
Net realized and change in unrealized gain (loss) on investment in gold        
Net realized gain (loss) from gold distributed for the redemption of shares and sold to pay expenses 40,960 4,249,440 2,948,570 4,261,209
Net change in unrealized appreciation (depreciation) on investment in gold 48,278,898 (6,114,720) 97,037,695 6,134,563
Net realized and change in unrealized gain (loss) on investment in gold 48,319,858 (1,865,280) 99,986,265 10,395,772
Net increase (decrease) in net assets resulting from operations $ 48,158,913 $ (1,903,721) $ 99,643,508 $ 10,303,478
Net increase (decrease) in net assets per Share (in Dollars per share) [1] $ 6.24 $ (0.66) $ 16.16 $ 4.21
Franklin Responsibly Sourced Gold ETF [Member]        
Expenses        
Sponsor's fee $ 160,945 $ 38,441 $ 342,757 $ 92,294
Total expenses 160,945 38,441 342,757 92,294
Net investment loss (160,945) (38,441) (342,757) (92,294)
Net realized and change in unrealized gain (loss) on investment in gold        
Net realized gain (loss) from gold distributed for the redemption of shares and sold to pay expenses 40,960 4,249,440 2,948,570 4,261,209
Net change in unrealized appreciation (depreciation) on investment in gold 48,278,898 (6,114,720) 97,037,695 6,134,563
Net realized and change in unrealized gain (loss) on investment in gold 48,319,858 (1,865,280) 99,986,265 10,395,772
Net increase (decrease) in net assets resulting from operations $ 48,158,913 $ (1,903,721) $ 99,643,508 $ 10,303,478
Net increase (decrease) in net assets per Share (in Dollars per share) [1] $ 6.24 $ (0.66) $ 16.16 $ 4.21
[1] Net increase (decrease) in net assets per Share based on average shares outstanding during the period.