Document And Entity Information Note To Financial Statement Details Textual Document Fiscal Period Focus Significant Accounting Policies Document Fiscal Year Focus Note 2 - Significant Accounting Policies Commitments and Contingencies Disclosure [Text Block] Indemnification Note 7 - Financial Highlights Amendment Flag Schedules of Investment Note 2 - Significant Accounting Policies - Summary of Investments at Fair Value (Details) Related and Nonrelated Parties [Axis] Note 2 - Significant Accounting Policies - Gold Receivable (Details) Investments in Gold, at fair value (cost $96,197,526 and $77,748,740 at March 31, 2026 and September 30, 2025, respectively) Note 2 - Significant Accounting Policies - Gold Payable (Details) Concentration Risk [Table] Note 2 - Significant Accounting Policies - Activity in Number and Value of Shares Created and Redeemed (Details) Subsequent Events [Text Block] Subsequent Events Note 7 - Financial Highlights - Summary of Financial Highlights (Details) Stock Repurchased and Retired During Period, Shares Redemptions (in shares) Notes To Financial Statements Notes To Financial Statements [Abstract] Document Period End Date Concentration Risk Disclosure [Text Block] Concentration of Risk Legal Entity [Axis] Investment in Gold (Ounce) Significant Accounting Policies [Text Block] Significant Accounting Policies Investment, % of net assets RECONCILIATION OF NET INCREASE/(DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS TO NET CASH PROVIDED BY OPERATING ACTIVITIES Entity File Number Entity Tax Identification Number Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Business Description and Basis of Presentation [Text Block] Organization Entity [Domain] Entity Central Index Key Entity Registrant Name Entity Current Reporting Status Liability for Uncertainty in Income Taxes, Current Liability for Uncertainty in Income Taxes, Current Entity Incorporation, State or Country Code Current Fiscal Year End Date Fair Value Measurement, Policy [Policy Text Block] Fair Value Measurement Entity Filer Category Entity Shell Company Entity Emerging Growth Company Entity Small Business Management and Service Fees Rate Management and Service Fees, Rate Investments [Domain] Accounting Policies [Abstract] Income Tax Examination, Description Income Tax Examination, Description Sponsor fees Increase/(Decrease) in accounts payable to Sponsor Net realized gain/(loss) from investment in gold sold to pay expenses Gain (Loss) on Sale of Trust Assets to Pay Expenses Net realized (gain)/loss from investment in gold sold to pay expenses Net realized gain/(loss) from gold distributed for the redemption of shares Net Realized Gain Loss From Gold Distributed For The Redemption Of Shares Net realized (gain)/loss from gold distributed for the redemption of shares Net realized gain loss from gold distributed for the redemption of shares. Loss Contingencies [Table] Entity Address, State or Province Statement of Stockholders' Equity [Abstract] Entity Address, City or Town Activity in Value of Shares Created and Redeemed: Represents the activity in value of shares created and redeemed. Income Statement [Abstract] Entity Address, Address Line One Entity Address, Address Line Two Statement of Cash Flows [Abstract] City Area Code Shares Outstanding Shares issued and outstanding- Opening Balance (in shares) Shares issued and outstanding- Closing Balance (in shares) Local Phone Number Entity Address, Postal Zip Code Activity in Number of Shares Created and Redeemed: Represents the activity in number of shares created and redeemed. Title of 12(b) Security Equity Components [Axis] Security Exchange Name Trading Symbol gld_PolicyTable Class of Stock [Axis] Adjustments to reconcile net increase/(decrease) to net cash provided by operating activities: Equity Component [Domain] Liabilities Total Liabilities Net Assets, % of net assets Net Assets, % of net assets The percentage of net assets on net assets. Fair Value, Inputs, Level 2 [Member] Custody Of Gold [Policy Text Block] Custody of Gold Disclosure of accounting policy for custody of gold. LIABILITIES Fair Value, Inputs, Level 3 [Member] Revenue [Policy Text Block] Income and Expense Investment in Gold [Member] Represents investments in gold. Fair Value, Inputs, Level 1 [Member] Entity Common Stock, Shares Outstanding Gold payable Amount of gold payable. Value of gold distributed for redemption of shares-net of change in gold payable Fair value of gold distributed for redemption of shares in noncash transaction. Minimum Block of Shares Issued Redeemed Against Gold Minimum Block of Shares Issued Redeemed Against Gold (in shares) The minimum block of shares issued for redemption against gold. Fair Value Assets and Liabilities, Transfers Between Level One, Level Two and Level Three Fair Value Assets and Liabilities, Transfers Between Level One, Level Two and Level Three The amount of transfers between level 1, level 2 and level 3 of fair value if assets and liabilities. Percentage of Gold Held as Good Delivery Gold Bars Percentage of Gold Held as Good Delivery Gold Bars The percentage of gold held in the form of good delivery gold bars. Investment in Gold Investment in Gold Net investment loss Net investment loss Gold Receivable [Policy Text Block] Gold Receivable Disclosure of accounting policy for gold receivable. Number of Income Tax Examinations In Progress Number of Income Tax Examinations In Progress The number of income tax examinations in progress. Gold Payable [Policy Text Block] Gold Payable Disclosure of accounting policy for gold payable. Investment Company, Change in Net Assets [Table] Creations and Redemptions of Shares [Policy Text Block] Creations and Redemptions of Shares Disclosure of accounting policy for creation and redemption of shares. Trust Formation Date Trust Formation Date The date the trust was formed. Net change in Value of Shares Created and Redeemed Net change in Value of Shares Created and Redeemed The value of net increase (decrease) in shares issued and outstanding. Gold Receivable [Table Text Block] Gold Receivable Tabular disclosure of gold receivable. Gold receivable Amount of gold receivable. Net increase/(decrease) in net assets resulting from operations Net increase/(decrease) in net assets resulting from operations Gold Payable [Table Text Block] Gold Payable Tabular disclosure of gold payable. Shares Issued and Outstanding Net Increase (Decrease) Net Change in Number of Shares Created and Redeemed (in shares) The shares issued and outstanding net increase decrease. Subsequent Event [Table] Total Return, at Market Value Market Value per Share Market Value per Share, beginning of period (in dollars per share) Market Value per Share, end of period (in dollars per share) Cash expenses paid Cash expenses paid Accounting Standards Update and Change in Accounting Principle [Table] Income Tax, Policy [Policy Text Block] Income Taxes Common stock, par value (in dollars per share) SUPPLEMENTAL DISCLOSURE OF NON-CASH FINANCING ACTIVITIES: Basis of Accounting, Policy [Policy Text Block] Basis of Accounting Maximum Number of Business Days to Transfer Ownership of Gold Maximum Number of Business Days to Transfer Ownership of Gold (Day) The maximum number of days to transfer ownership of gold. Increase/(Decrease) in cash resulting from operations Increase/(Decrease) in cash resulting from operations Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Related and Nonrelated Parties [Domain] Related Party Transaction [Table] Related Party Transactions Disclosure [Text Block] Related Parties - Sponsor and Trustee Assets Total Assets Statement [Table] Investment, fair value Investment, fair value Fair Value Hierarchy and NAV [Domain] INCREASE/DECREASE IN CASH FROM OPERATIONS: Gain (Loss) on Investments Gain (Loss) on Investments Net realized and change in unrealized gain/(loss) on investment in gold Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table] Accounts payable to Sponsor Statement of Financial Position [Abstract] Investment Company, Financial Highlights [Text Block] Financial Highlights Investment Company, Financial Highlights [Table Text Block] Summary of Financial Highlights Proceeds from sales of gold to pay expenses Investment Type [Axis] Net Assets Net Assets Net Assets - Opening Balance Net Assets - Closing Balance Investment Company Investment Income Loss From Operations Per Share Net increase/(decrease) in net assets resulting from operations (in dollars per share) Net investment income/(loss) (in dollars per share) Net Realized and Change in Unrealized Gain/(Loss) (in dollars per share) Investment Company, Financial Highlights [Table] Investment in Gold, at cost Total Return, at Net Asset Value Net realized and change in unrealized gain/(loss) on investment in gold Non Investment Assets Less Non Investment Liabilities, Percent of Net Assets Assets/(Liabilities) in excess of other assets/liabilities, % of net assets Net Investment loss Non Investment Assets Less Non Investment Liabilities Assets/(Liabilities) in excess of other assets/liabilities, fair value Ratio to average net assets Net expenses Net asset value per Share (in dollars per share) Net Asset Value per Share, beginning of period (in dollars per share) Net Asset Value per Share, end of period (in dollars per share) Shares issued Document Type EXPENSES Document Information [Line Items] Document Quarterly Report Document Information [Table] Entity Interactive Data Current ASSETS Commitments Contingencies and Guarantees [Text Block] Commitments and Contingent Liabilities Document Transition Report Statement [Line Items] Net Assets, fair value Net Assets, fair value Total expenses Total expenses Fair Value Hierarchy and NAV [Axis] Investments at Fair Value [Table Text Block] Summary of Trust's Investments at Fair Value Investments at fair value. Creation and Redemption of Shares [Table Text Block] Creations and Redemptions of Shares Creation and redemption of shares. Sponsor [Member] Related to sponsor. Segment Reporting, Policy [Policy Text Block] Segment Reporting Weighted average number of shares (in 000’s) (in shares) Net change in unrealized gain/(loss) on investment in gold Unrealized Gain (Loss) on Investments Net change in unrealized (gain)/loss on investment in gold Net increase/(decrease) in net assets per share (in dollars per share) Creations Gross expenses Gross expenses to average net assets ratio. Value of gold received for creation of shares-net of change in gold receivable Nature of Operation, Product Information, Concentration of Risk [Table] Stock Repurchased and Retired During Period, Value Redemptions us-gaap_PolicyTextBlockAbstract Accounting Policies us-gaap_DisclosureTextBlockAbstract Notes to Financial Statements Creations (in shares) Creations (in shares) us-gaap_TableTextBlock Notes Tables