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Significant Accounting Policies (Quantitative Effect Of Adoption Of Investment Company Accounting) (Details) - USD ($) $ in Thousands	Jan. 01, 2014	Sep. 30, 2015	Dec. 31, 2014	Dec. 31, 2013
Significant Accounting Policies [Abstract]
Value at December 31, 2013 at lower of cost or market value				$ 1,040,003
Value at January 1, 2014 at fair value	$ 1,040,003	$ 832,534	$ 940,011	$ 1,040,003
Gain / (loss) as a result of change in accounting treatment	$ 0

X

- Definition

Total value of investment in bullion (Gold,Silver,Platinum,Palladium) received by the Trust in respect of the issuance of Shares at the lower of cost or market value as at the balance sheet date.

+ References

No definition available.

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- Definition

Investments held in physical commodities, such as gold, silver, platinum, crude oil, coal, sugar, rice, wheat.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 210



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.5-02.12)



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-Number 210



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Amount of the effect of a change in accounting principle on net income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 250



-SubTopic 10



-Section 50



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-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22583-107794



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-Name Accounting Standards Codification



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-Publisher FASB



-Name Accounting Standards Codification



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