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Derivative Contract Information - Effect of Derivative Contracts in the Fund's Statements of Operations (Detail) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
		Jun. 30, 2017	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net realized gain/(loss) from Gold Delivery Agreement	[1]	$ (1,227)	$ (1,313)
Currency Swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net realized gain/(loss) from Gold Delivery Agreement		(1,227)	(1,313)
SPDR Long Dollar Gold Trust [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net realized gain/(loss) from Gold Delivery Agreement	[1]	(1,227)	(1,313)
SPDR Long Dollar Gold Trust [Member] | Currency Swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net realized gain/(loss) from Gold Delivery Agreement		$ (1,227)	$ (1,313)
[1] No comparative has been provided as operations commenced on January 27, 2017. See Note 1.

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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (a),(c),(d),(e)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

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