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Significant Accounting Policies (Schedule Of Bullion Receivable And Payable) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
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Significant Accounting Policies [Abstract] |  |  |  |
Bullion receivable | $ 3,080 gltr_BullionReceivableAtMarketValue | [1] | $ 0 gltr_BullionReceivableAtMarketValue |
Bullion payable | $ 0 gltr_BullionPayableAtMarketValue |  | $ 0 gltr_BullionPayableAtMarketValue | $ 0 gltr_BullionPayableAtMarketValue
[1] | Effective January 1, 2014, the Trust has adopted the provisions of Topic 946, Investment Companies, and follows specialized accounting. Refer to Note 2.1 for additional information.

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

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- Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration