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Significant Accounting Policies (Detail) - Schedule of bullion receivable and payable (USD $)	Jun. 30, 2012	Dec. 31, 2011
Bullion receivable	$ 0	$ 0
Bullion payable	$ 4,302,195	$ 8,694,716	[1]
[1] Derived from audited Statement of Financial Condition as of December 31, 2011.

X

- Definition

Amount of bullion payable at market value as of the reporting date.

+ References

No definition available.

+ Details

Name:	gltr_BullionPayableAtMarketValue
Namespace Prefix:	gltr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of bullion receivable at market value as of the reporting date.

+ References

No definition available.

+ Details

Name:	gltr_BullionReceivableAtMarketValue
Namespace Prefix:	gltr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant