XML 36 R20.htm IDEA: XBRL DOCUMENT v3.5.0.2

Organization - Additional Information (Detail)	12 Months Ended
	Sep. 30, 2016 shares
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Formation date	Nov. 12, 2004
Minimum denomination of shares issued redeemed against gold	100,000
Trust adoption of financial presentation provisions appropriate to investment company for accounting purposes, effective date	Oct. 01, 2014

X

- Definition

The minimum block of shares that can be created or redeemed against gold deposits or distributions.

+ References

No definition available.

+ Details

Name:	gld_MinimumBlockOfSharesIssuedRedeemedAgainstGold
Namespace Prefix:	gld_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Trust adoption of financial presentation provisions appropriate to investment company for accounting purposes effective date.

+ References

No definition available.

+ Details

Name:	gld_TrustAdoptionOfFinancialPresentationProvisionsAppropriateToInvestmentCompanyForAccountingPurposesEffectiveDate
Namespace Prefix:	gld_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Trust Formation Date

+ References

No definition available.

+ Details

Name:	gld_TrustFormationDate
Namespace Prefix:	gld_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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