Related Parties - Sponsor and Trustee	12 Months Ended
Sep. 30, 2016
Related Party Transactions [Abstract]
Related Parties - Sponsor and Trustee	4. Related Parties - Sponsor and Trustee Prior to July 17, 2015, fees were paid by the Trust to the Sponsor as compensation for services performed under the Trust Indenture and for services performed in connection with maintaining the Trust’s website and marketing the Shares. The Sponsor’s fee was payable monthly in arrears and accrued daily at an annual rate equal to 0.15% of the ANAV of the Trust, subject to reduction as described below. The Sponsor received reimbursement from the Trust for all of its disbursements and expenses incurred in connection with the Trust. Fees were paid to the Trustee as compensation for services performed under the Trust Indenture. The Trustee’s fee was payable monthly in arrears. Prior to July 17, 2015 the Trustee’s fee was accrued daily at an annual rate equal to 0.02% of the ANAV of the Trust, subject to a minimum fee of $500,000 and a maximum fee of $2 million per year. The Trustee’s fee was subject to modification as determined by the Trustee and the Sponsor in good faith to account for significant changes in the Trust’s administration or the Trustee’s duties. The Trustee was also paid for its expenses and disbursements incurred in connection with the Trust (including the expenses of the Custodian paid by the Trustee), exclusive of fees of agents for services to be performed by the Trustee, and for any extraordinary services performed by the Trustee for the Trust. The Trustee’s fees were paid by the Trust prior to July 17, 2015 and by the Sponsor for all subsequent periods. Effective July 17, 2015, the Trust’s only recurring fixed expense is the Sponsor’s fee which accrues daily at an annual rate equal to 0.40% of the daily NAV, in exchange for the Sponsor assuming the responsibility to pay all ordinary fees and expenses of the Trust. It is the Trust’s responsibility to pay any extraordinary non-recurring expenses and other charges. Affiliates of the Trustee may from time to time act as Authorized Participants or purchase or sell gold or Shares for their own account, as agent for their customers and for accounts over which they exercise investment discretion. 4.1. Other Vendor Agreements Fees are paid to the Custodian under the Allocated Bullion Account Agreement between the Trustee and the Custodian (as amended, the “Allocated Bullion Account Agreement”) as compensation for its custody services. Prior to July 17, 2015 the Custodian’s fee was computed at an annual rate equal to 0.10% of the average daily aggregate value of the first 4.5 million ounces of gold held in the Trust’s allocated gold account (“Trust Allocated Account”) and the Trust’s unallocated gold account (“Trust Unallocated Account”) and 0.06% of the average daily aggregate value of all gold held in the Trust Allocated Account and the Trust Unallocated Account in excess of 4.5 million ounces. The Custodian’s fees were paid by the Trust prior to July 17, 2015 and by the Sponsor for all subsequent periods. The Custodian and its affiliates may from time to time act as Authorized Participants or purchase or sell gold or Shares for their own account, as agent for their customers and for accounts over which they exercise investment discretion. Fees are paid to the marketing agent for the Trust, State Street Global Markets, LLC (the “Marketing Agent”), as compensation for services performed pursuant to the Marketing Agent Agreement, between the Sponsor and the Marketing Agent (as amended, the “Marketing Agent Agreement”). Prior to July 17, 2015 the Marketing Agent’s fee was payable monthly in arrears and was accrued daily at an annual rate equal to 0.15% of the ANAV of the Trust, subject to reduction as described below. The Marketing Agent’s fees were paid by the Trustee prior to July 17, 2015 and by the Sponsor for all subsequent periods. Prior to July 17, 2015, if at the end of any month, the estimated ordinary expenses of the Trust exceeded an amount equal to 0.40% per year of the daily ANAV of the Trust for such month, the Sponsor and the Marketing Agent would reduce the amount of such excess from the fees payable to them from the assets of the Trust for such month in equal shares up to the amount of their fees. For the period from October 1, 2014 through July 16, 2015, the Sponsor and the Marketing Agent each reduced their fees in the amount of $2,047,695 because the Trust’s ordinary expenses exceeded 0.40% per year of the daily ANAV of the Trust. The Sponsor and Marketing Agent did not reduce their fees for the year ended September 30, 2014. The Marketing Agent and its affiliates may from time to time act as Authorized Participants or purchase or sell gold or Shares for their own account, as agent for their customers and for accounts over which they exercise investment discretion. Effective July 17, 2015, the Trust’s only recurring fixed expense is the Sponsor’s fee which accrues daily at an annual rate equal to 0.40% of the daily NAV, in exchange for the Sponsor assuming the responsibility to pay all ordinary fees and expenses of the Trust which include fees and expenses of the Trustee, the fees and expenses of the Custodian for the custody of the Trust’s gold bars, the fees and expenses of the Sponsor, certain taxes, the fees of the Marketing Agent, printing and mailing costs, legal and audit fees, registration fees, NYSE Arca listing fees and other marketing costs and expenses. In order to pay the Trust’s expenses, the Trustee sells gold held by the Trust on an as-needed basis. Each sale of gold by the Trust is a taxable event to the Shareholders. The amount payable to the Sponsor was $13,184,431 and $8,089,124, respectively, at September 30, 2016 and 2015.

4. Related Parties - Sponsor and Trustee

Prior to July 17, 2015, fees were paid by the Trust to the Sponsor as compensation for services performed under the Trust Indenture and for services performed in connection with maintaining the Trust’s website and marketing the Shares. The Sponsor’s fee was payable monthly in arrears and accrued daily at an annual rate equal to 0.15% of the ANAV of the Trust, subject to reduction as described below. The Sponsor received reimbursement from the Trust for all of its disbursements and expenses incurred in connection with the Trust.

Fees were paid to the Trustee as compensation for services performed under the Trust Indenture. The Trustee’s fee was payable monthly in arrears. Prior to July 17, 2015 the Trustee’s fee was accrued daily at an annual rate equal to 0.02% of the ANAV of the Trust, subject to a minimum fee of $500,000 and a maximum fee of $2 million per year. The Trustee’s fee was subject to modification as determined by the Trustee and the Sponsor in good faith to account for significant changes in the Trust’s administration or the Trustee’s duties. The Trustee was also paid for its expenses and disbursements incurred in connection with the Trust (including the expenses of the Custodian paid by the Trustee), exclusive of fees of agents for services to be performed by the Trustee, and for any extraordinary services performed by the Trustee for the Trust. The Trustee’s fees were paid by the Trust prior to July 17, 2015 and by the Sponsor for all subsequent periods.

Affiliates of the Trustee may from time to time act as Authorized Participants or purchase or sell gold or Shares for their own account, as agent for their customers and for accounts over which they exercise investment discretion.

4.1. Other Vendor Agreements

Fees are paid to the Custodian under the Allocated Bullion Account Agreement between the Trustee and the Custodian (as amended, the “Allocated Bullion Account Agreement”) as compensation for its custody services. Prior to July 17, 2015 the Custodian’s fee was computed at an annual rate equal to 0.10% of the average daily aggregate value of the first 4.5 million ounces of gold held in the Trust’s allocated gold account (“Trust Allocated Account”) and the Trust’s unallocated gold account (“Trust Unallocated Account”) and 0.06% of the average daily aggregate value of all gold held in the Trust Allocated Account and the Trust Unallocated Account in excess of 4.5 million ounces. The Custodian’s fees were paid by the Trust prior to July 17, 2015 and by the Sponsor for all subsequent periods.

The Custodian and its affiliates may from time to time act as Authorized Participants or purchase or sell gold or Shares for their own account, as agent for their customers and for accounts over which they exercise investment discretion.

Fees are paid to the marketing agent for the Trust, State Street Global Markets, LLC (the “Marketing Agent”), as compensation for services performed pursuant to the Marketing Agent Agreement, between the Sponsor and the Marketing Agent (as amended, the “Marketing Agent Agreement”). Prior to July 17, 2015 the Marketing Agent’s fee was payable monthly in arrears and was accrued daily at an annual rate equal to 0.15% of the ANAV of the Trust, subject to reduction as described below. The Marketing Agent’s fees were paid by the Trustee prior to July 17, 2015 and by the Sponsor for all subsequent periods.

Prior to July 17, 2015, if at the end of any month, the estimated ordinary expenses of the Trust exceeded an amount equal to 0.40% per year of the daily ANAV of the Trust for such month, the Sponsor and the Marketing Agent would reduce the amount of such excess from the fees payable to them from the assets of the Trust for such month in equal shares up to the amount of their fees. For the period from October 1, 2014 through July 16, 2015, the Sponsor and the Marketing Agent each reduced their fees in the amount of $2,047,695 because the Trust’s ordinary expenses exceeded 0.40% per year of the daily ANAV of the Trust. The Sponsor and Marketing Agent did not reduce their fees for the year ended September 30, 2014.

The Marketing Agent and its affiliates may from time to time act as Authorized Participants or purchase or sell gold or Shares for their own account, as agent for their customers and for accounts over which they exercise investment discretion.

Effective July 17, 2015, the Trust’s only recurring fixed expense is the Sponsor’s fee which accrues daily at an annual rate equal to 0.40% of the daily NAV, in exchange for the Sponsor assuming the responsibility to pay all ordinary fees and expenses of the Trust which include fees and expenses of the Trustee, the fees and expenses of the Custodian for the custody of the Trust’s gold bars, the fees and expenses of the Sponsor, certain taxes, the fees of the Marketing Agent, printing and mailing costs, legal and audit fees, registration fees, NYSE Arca listing fees and other marketing costs and expenses. In order to pay the Trust’s expenses, the Trustee sells gold held by the Trust on an as-needed basis. Each sale of gold by the Trust is a taxable event to the Shareholders. The amount payable to the Sponsor was $13,184,431 and $8,089,124, respectively, at September 30, 2016 and 2015.