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Significant Accounting Policies (Quantitative Effect Of Adoption Of Investment Company Accounting) (Details) - USD ($) $ in Thousands	Jan. 01, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Significant Accounting Policies [Abstract]
Value at December 31, 2013 at lower of cost or market value			$ 410,663	$ 463,598
Value at January 1, 2014 at fair value	$ 510,475	$ 184,779		$ 410,663	$ 510,475
Gain / (loss) as a result of change in accounting principle	$ 46,877

X

- Definition

Total value of investment in bullion (Gold,Silver,Platinum,Palladium) received by the Trust in respect of the issuance of Shares at fair 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)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 12
-Article 5

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- Definition

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
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22583-107794

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22499-107794

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22580-107794

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