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Significant Accounting Policies (Schedule Of Investment In Gold) (Details) (USD $)
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2012
oz
Sep. 30, 2011
Sep. 30, 2012
oz
Sep. 30, 2011
oz
Dec. 31, 2011
oz
Significant Accounting Policies [Abstract]          
Opening balance     1,065,686.5 821,051.2 821,051.2
Creations     98,961.9   292,915.5
Redemptions     (44,523.0)   (44,662.3)
Transfers of gold     (3,206.4)   (3,617.9)
Closing balance 1,116,919.0   1,116,919.0   1,065,686.5
Opening balance (in Dollars)     $ 1,376,845,277 [1],[2] $ 971,070,331 $ 971,070,331
Creations (in Dollars) 58,855,898 192,315,111 167,360,452 [3] 346,666,349 466,052,746 [3]
Redemptions (in Dollars) (26,016,147) (31,276,133) (58,473,434) (43,038,989) (55,843,669)
Transfers of gold (in Dollars) (1,424,198) (1,154,393) (4,198,766) (3,152,796) (4,434,131)
Closing balance (in Dollars) 1,481,533,529 [1]   1,481,533,529 [1]   1,376,845,277 [1],[2]
Golf receivable ounces of gold 9,881.4   9,881.4    
Gold receivable at lower of cost or market value (in Dollars) 17,420,940   17,420,940    
Gold receivable at market value (in Dollars) $ 17,549,398   $ 17,549,398   $ 0 [2]
[1] The investment in gold is valued at the lower of cost or market. Refer to note 2.1 for a breakdown of cost and market value of the investment in gold.
[2] Derived from audited Statement of Financial Condition as of December 31, 2011.
[3] Market value of gold receivable at September 30, 2012 - $17,549,398.