Statements of Assets and Liabilities (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
Schedule of Investments [Abstract]
Investment in silver at cost	$ 1,150,495	$ 1,152,826
Common stock, shares authorized	Unlimited	Unlimited
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares outstanding	50,500,000	51,500,000
Common stock, shares issued	50,500,000	51,500,000
Net asset value per share (in dollars per share)	$ 32.49	$ 27.59