Schedules of Investments (Unaudited) - Investments (Details)	Jun. 30, 2022 USD ($) oz	Mar. 31, 2022 USD ($) oz	Dec. 31, 2021 USD ($) oz	Jun. 30, 2021 USD ($) oz	Mar. 31, 2021 USD ($) oz	Dec. 31, 2020 USD ($) oz
Silver bullion (Ounce) \| oz	540,709,388	558,647,503	530,838,100	558,173,283	575,124,212	558,715,882
Investment in silver bullion, cost	$ 11,776,684,940	$ 12,064,750,371	$ 11,330,688,133	$ 11,759,403,511	$ 11,937,644,776	$ 10,472,474,303
Silver bullion fair value	11,038,582,148		12,254,397,545
Less Liabilities	(4,828,998)		(5,163,322)
Net Assets	$ 11,033,753,150	$ 13,856,958,505	$ 12,249,234,223	$ 14,374,981,738	$ 13,796,532,456	$ 14,791,792,720

Value of the investment at close of period. For schedules of investments that are categorized, the value would be aggregated by category. For investment in and advances to affiliates, if operations of any controlled companies are different in character from those of the company, group such affiliates within divisions and by type of activities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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