XML 52 R30.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Significant Accounting Policies - Gold Delivery Agreement Payable (Detail) $ in Thousands | Sep. 30, 2017 USD ($) | [1]
--- | --- | ---
Gold Delivery Agreement Payable |
Gold Delivery Agreement payable | $ 50
SPDR Long Dollar Gold Trust [Member] |
Gold Delivery Agreement Payable |
Gold Delivery Agreement payable | $ 50
[1] | No comparative has been provided as operations commenced on January 27, 2017. See Note 1.

X
- Definition Gold delivery agreement payable. + References No definition available. + Details
Name: | gldw_GoldDeliveryAgreementPayable
Namespace Prefix: | gldw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Gold delivery agreement payable. + References No definition available. + Details
Name: | gldw_GoldDeliveryAgreementPayableAbstract
Namespace Prefix: | gldw_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=gldw_SPDRLongDollarGoldTrustMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |