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Significant Accounting Policies (Quantitative Effect Of Adoption Of Investment Company Accounting) (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended
	Jan. 01, 2014	Mar. 31, 2015	Dec. 31, 2014	Jan. 01, 2014	Dec. 31, 2013
Significant Accounting Policies [Abstract]
Value at December 31, 2013 at lower of cost or market value					$ 1,040,003sgol_InvestmentInBullion
Value at January 1, 2014 at fair value		912,076us-gaap_InvestmentInPhysicalCommodities	940,011us-gaap_InvestmentInPhysicalCommodities	1,040,003us-gaap_InvestmentInPhysicalCommodities	1,040,003us-gaap_InvestmentInPhysicalCommodities
Gain / (loss) as a result of change in accounting treatment	$ 0us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome

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.

+ Details

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Namespace Prefix:	sgol_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

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

X

- 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

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- 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 2

-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22580-107794



Reference 2: 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 3: 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

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