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Related Parties - Sponsor and Trustee - Additional Information (Detail)	10 Months Ended	14 Months Ended
	Jul. 16, 2015 USD ($) oz	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)
Related Party Transaction [Line Items]
Accounts payable to related party		$ 13,184,000	$ 8,089,000	[1]
Sponsor [Member]
Related Party Transaction [Line Items]
Related party fees payable at annual rate	0.15%	0.40%
Accounts payable to related party		$ 13,184,431	$ 8,089,124
Custodian Tier One [Member]
Related Party Transaction [Line Items]
Related party fees payable at annual rate	0.10%
Custodian Tier One [Member] | Maximum [Member]
Related Party Transaction [Line Items]
Aggregate weight of gold to determine custodian fee tiers | oz	4,500,000
Custodian Tier Two [Member]
Related Party Transaction [Line Items]
Related party fees payable at annual rate	0.06%
Custodian Tier Two [Member] | Minimum [Member]
Related Party Transaction [Line Items]
Aggregate weight of gold to determine custodian fee tiers | oz	4,500,000
Marketing Agent [Member]
Related Party Transaction [Line Items]
Related party fees payable at annual rate	0.15%
Sponsor and Marketing Agent [Member]
Related Party Transaction [Line Items]
Trust expense ratio	0.40%
Fees waived amount	$ 2,047,695
Trustee [Member]
Related Party Transaction [Line Items]
Related party fees payable at annual rate	0.02%
Trustee [Member] | Minimum [Member]
Related Party Transaction [Line Items]
Related party service fees	$ 500,000
Trustee [Member] | Maximum [Member]
Related Party Transaction [Line Items]
Related party service fees	$ 2,000,000
[1] Effective October 1, 2014, SPDR® Gold Trust (the "Trust") adopted the financial presentation provisions for an investment company. See note 2.2 to our audited financial statements.

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Discussion that relates to the approximate assets under management below which the ordinary expenses will accrue at a rate greater than the expense ratio.

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The reduction in the Sponsor's and marketing agent's fees made to ensure that the total expenses charged to the Trust do not exceed the expense ratio of the Trust.

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Related party fees at the annual contractual rates charged on the daily adjusted net asset value of the Trust.

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Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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