2.0.0.10 false Condensed Statements of Financial Condition (Unaudited) (USD $) 0110 - Statement - Condensed Statements of Financial Condition (Unaudited) true false In Thousands false false 1 usd $ false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 false 2 usd $ false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 3 ASSETS 1 us-gaap_AssetsAbstract us-gaap true na duration string No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false No definition available. false 4 Investment in Gold, at cost 2 gld_InvestmentInGold gld false debit instant monetary Carrying amount (lower of cost or market) as of the balance sheet date of investment in gold. false false false false false false false false false false false verboselabel false 1 true true false false 30103537000 30103537 [1] false false false 2 true true false false 28463669000 28463669 [1],[2] false false false Carrying amount (lower of cost or market) as of the balance sheet date of investment in gold. No authoritative reference available. false 5 Gold Receivable 2 us-gaap_ReceivablesNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false 185653000 185653 false false false 2 false true false false 39068000 39068 [2] false false false The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph a -Article 5 true 6 Total Assets 2 us-gaap_Assets us-gaap true debit instant monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false 30289190000 30289190 false false false 2 false true false false 28502737000 28502737 [2] false false false Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. 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For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer). 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Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph a -Article 5 false 10 Accrued expenses 2 us-gaap_AccruedLiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false 3048000 3048 false false false 2 false true false false 400000 400 [2] false false false Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 true 11 Total Liabilities 2 us-gaap_Liabilities us-gaap true credit instant monetary No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 16038000 16038 false false false 2 false true false false 12157000 12157 [2] false false false Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. No authoritative reference available. false 12 Redeemable Shares: 2 us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract us-gaap true na duration string No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false No definition available. false 13 Shares at redemption value to investors 3 us-gaap_CommonStockValue us-gaap true credit instant monetary No definition available. false false false false false false false false false false false false 1 false true false false 40504446000 40504446 [3] false false false 2 false true false false 35054043000 35054043 [2],[3] false false false Dollar value of issued common stock whether issued at par value, no par or stated value. This item includes treasury stock repurchased by the entity. Note: elements for number of common shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 false 14 Shareholders' Deficit 3 us-gaap_RetainedEarningsAccumulatedDeficit us-gaap true credit instant monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false -10231294000 -10231294 false false false 2 false true false false -6563463000 -6563463 [2] false false false The cumulative amount of the reporting entity's undistributed earnings or deficit. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 32 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 25 -Article 7 true 1 The market value of Investment in Gold at March 31, 2010 is $40,334,831 and at September 30, 2009, is $35,027,132. 2 Derived from audited statement of condition as of September 30, 2009. 3 Authorized share capital is unlimited and the par value of the Shares is $0.00. Shares issued and outstanding at March 31, 2010 was 370,900,000 and at September 30, 2009 was 358,900,000. false 2 13 false Thousands UnKnown UnKnown false true