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Significant Accounting Policies (Schedule Of Investment In Gold) (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
USD ($)
oz
Dec. 31, 2018
USD ($)
oz
Dec. 31, 2017
USD ($)
oz
Significant Accounting Policies [Abstract]      
Opening balance (in Ounces) | oz 641,449.1 808,581.0  
Creations (in Ounces) | oz 222,589.1 101,505.5  
Redemptions (in Ounces) | oz (75,167.4) (265,666.8)  
Transfers of gold to pay expenses (in Ounces) | oz (1,182.5) (2,970.6)  
Closing balance (in Ounces) | oz 787,688.3 641,449.1 808,581.0
Investment in gold, fair value, opening balance $ 822,113 $ 1,048,326  
Creations 319,522 132,781  
Redemptions (102,215) (336,610)  
Realized gain on gold distributed for the redemption of Shares 8,541 10,687 $ 2,048
Transfers of gold to pay expenses (1,628) (3,796)  
Realized gain on gold transferred to pay expenses 154 159 99
Change in unrealized gain/ (loss) on investment in gold 146,664 (29,434) 108,712
Investment in gold, fair value, closing balance $ 1,193,151 $ 822,113 $ 1,048,326