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Changes in ounces of platinum and their respective values for the three months ended March 31, 2025 and 2024 are set out below: (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2025 USD ($) oz	Mar. 31, 2024 USD ($) oz
Accounting Policies [Abstract]
Opening balance | oz	1,115,390.0	997,955.2
Creations | oz	22,821.1	55,122.1
Redemptions | oz	(63,929.4)	(36,741.1)
Transfers of platinum to pay expenses | oz	(1,624.4)	(1,508.3)
Closing balance | oz	1,072,657.3	1,014,827.9
Opening balance	$ 1,019,466	$ 997,955
Creations	22,392	49,532
Redemptions	(61,576)	(33,692)
Realized gain (loss) on platinum distributed for the redemption of Shares	6	(1,718)
Transfers of platinum to pay expenses	(1,537)	(1,420)
Realized gain (loss) on platinum transferred to pay expenses	(28)	(35)
Change in unrealized (loss) on investment in platinum	86,426	(90,173)
Closing balance	$ 1,065,149	$ 920,449

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Change in unrealized gain (loss) on investment in bullion.

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Cost of Bullion transferred to pay Trust's expenses.

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- Definition

Ounces of bullion received into the Trust's account in respect of creations.

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Amount of creations of bullion in investment.

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- Definition

Realized gain (loss) on bullion distributed for redemption of shares.

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No definition available.

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- Definition

Ounces of bullion paid out of the Trust's account in respect of redemptions.

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Ounces of bullion transferred to pay Trust's expenses.

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Value of bullion distributed at average cost for the redemption of Shares excluding bullion payable.

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Gain (loss) related to the sale of trust assets (includes, but is not limited to, gold and silver) to pay trust expenses.

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- Definition

Investments held in physical commodities, such as gold, silver, platinum, crude oil, coal, sugar, rice, wheat.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(3)(d))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1

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Quantity of the investment. Indicate the measure in the unit of measure. This is commonly used for investments other than securities. For example, if the investment is gold, the balance would be the number of ounces and the unit of measure would indicate "ounces".

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 5D
-Subparagraph (SX 210.12-13D(Column B))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-5D

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