Combined Statements of Assets and Liabilities (Parentheticals) - USD ($) |
3 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2026 |
Mar. 31, 2026 |
|
| Cost of investment | $ 319,429,416 | $ 319,559,905 |
| Shares, no par value (in Dollars per share) | $ 0 | $ 0 |
| Shares authorized, unlimited | Unlimited | Unlimited |
| Franklin Responsibly Sourced Gold ETF [Member] | ||
| Cost of investment | $ 319,429,416 | $ 319,559,905 |
| Shares, no par value (in Dollars per share) | $ 0 | $ 0 |
| Shares authorized, unlimited | Unlimited | Unlimited |
| X | ||||||||||
- Definition Face amount per share of no-par value common stock. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Indicates whether number of common shares permitted to be issued is unlimited. Acceptable value is "Unlimited". Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Cost of the investment. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Details
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