Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash Flows from Operating Activities
Proceeds from silver bullion sold to pay expenses	$ 25,579,758	$ 28,438,986	$ 28,700,680
Expenses – Sponsor’s fees paid	(25,579,758)	(28,438,986)	(28,700,680)
Net cash provided by operating activities	0	0	0
Increase (decrease) in cash	0	0	0
Cash, beginning of year	0	0	0
Cash, end of year	0	0	0
Reconciliation of Net Increase (Decrease) in Net Assets Resulting from Operations to Net Cash Provided by (Used in) Operating Activities
Net increase (decrease) in net assets resulting from operations	(472,326,421)	217,471,048	682,782,768
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:
Proceeds from silver bullion sold to pay expenses	25,579,758	28,438,986	28,700,680
Net realized (gain) loss	135,779,475	92,120,817	111,239,707
Net change in unrealized appreciation/depreciation	311,211,423	(337,891,452)	(823,171,043)
Change in operating assets and liabilities:
Sponsor’s fees payable	(244,235)	(139,399)	447,888
Net cash provided by operating activities	0	0	0
Supplemental disclosure of non-cash information:
Silver bullion contributed for Shares issued	954,051,929	873,170,446	1,702,628,324
Silver bullion distributed for Shares redeemed	$ (982,882,736)	$ (1,226,578,286)	$ (1,236,224,053)