Statements of Operations - USD ($)		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Expenses
Sponsor's fees		$ 50,643,408	$ 27,765,547	$ 25,335,523
Total expenses		50,643,408	27,765,547	25,335,523
Net investment loss		(50,643,408)	(27,765,547)	(25,335,523)
Net Realized and Unrealized Gain (Loss)
Silver bullion sold to pay expenses		7,414,067	(2,188,446)	(3,730,211)
Silver bullion distributed for the redemption of Shares		921,913,789	(52,914,435)	(132,049,264)
Net realized gain (loss)		929,327,856	(55,102,881)	(135,779,475)
Net change in unrealized appreciation/depreciation		4,075,854,334	984,801,878	(311,211,423)
Net realized and unrealized gain (loss)		5,005,182,190	929,698,997	(446,990,898)
Net increase (decrease) in net assets resulting from operations		$ 4,954,538,782	$ 901,933,450	$ (472,326,421)
Net increase (decrease) in net assets per Share (in dollars per share)	[1]	$ 9.61	$ 2.47	$ (1.38)

[1] Net increase (decrease) in net assets per Share based on average shares outstanding during the year.