Statements of Assets and Liabilities (Unaudited) (Parenthetical) $ in Thousands		6 Months Ended	12 Months Ended
		Jun. 30, 2026 USD ($) $ / shares shares	Dec. 31, 2025 USD ($) $ / shares shares
Statement of Financial Position [Abstract]
Investment in palladium at cost | $		$ 651,131	$ 797,137
Common stock, shares authorized		Unlimited	Unlimited
Common stock, no par value (in dollars per share) | $ / shares		$ 0	$ 0
Common stock, shares issued | shares		26,750,000	36,375,000
Common stock, shares outstanding | shares		26,750,000	36,375,000
Net asset value per share (in dollars per share) | $ / shares	[1]	$ 22.10	$ 28.47

[1] After the close of markets on May 14, 2026, the Trust effected a five-for-one forward share split of the Shares issued by the Trust (the "Split"). The information presented attributable to periods prior to the Split has been adjusted to reflect the effects of the Split.