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Significant Accounting Policies (Schedule Of Unrealized Gains Or Losses On The Trust's Bullion Holdings) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Bullion [Line Items] |  |
Investment in Bullion - average cost | $ 308,780 | $ 185,427
Realized loss on investment in Bullion | (48,858) |
Investment in Bullion - lower of cost or market value | 259,922 |
Unrealized gain on investment in Bullion | 554 | 16,919
Investment in Bullion - market value | 260,476 | 202,346
Gold [Member] |  |
Bullion [Line Items] |  |
Investment in Bullion - average cost | 162,839 | 96,337
Realized loss on investment in Bullion | (23,109) |
Investment in Bullion - lower of cost or market value | 139,730 |
Unrealized gain on investment in Bullion | 0 | 12,101
Investment in Bullion - market value | 139,730 | 108,438
Silver [Member] |  |
Bullion [Line Items] |  |
Investment in Bullion - average cost | 108,001 | 68,563
Realized loss on investment in Bullion | (24,850) |
Investment in Bullion - lower of cost or market value | 83,151 |
Unrealized gain on investment in Bullion | 0 | 3,002
Investment in Bullion - market value | 83,151 | 71,565
Platinum [Member] |  |
Bullion [Line Items] |  |
Investment in Bullion - average cost | 21,956 | 12,213
Realized loss on investment in Bullion | (899) |
Investment in Bullion - lower of cost or market value | 21,057 |
Unrealized gain on investment in Bullion | 0 | 1,020
Investment in Bullion - market value | 21,057 | 13,233
Palladium [Member] |  |
Bullion [Line Items] |  |
Investment in Bullion - average cost | 15,984 | 8,314
Realized loss on investment in Bullion | 0 |
Investment in Bullion - lower of cost or market value | 15,984 |
Unrealized gain on investment in Bullion | 554 | 796
Investment in Bullion - market value | $ 16,538 | $ 9,110

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- Details
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- Definition Value of investment in precious metals received by the Trust in respect of the issuance of shares at the average cost as at the balance sheet date. + References No definition available. + Details
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- Definition Market value of investment in bullion (Gold,Silver,Platinum,Palladium) received by the Trust in respect of the issuance of Shares at the lower of cost or market value as at the balance sheet date. + References No definition available. + Details
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