Investments in Affiliates - Summary of Transactions in, and Earnings from, Investments in Affiliates (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Investments In And Advances To Affiliates [Line Items]
Beginning Value	$ 154,307,059
Change in Unrealized Appreciation (Depreciation)	(57,550)	$ (863)	$ 47,154
Ending Value	145,567,003	154,307,059
Dividend Income	5,232,858	5,184,488	4,909,542
Investment, Affiliated Issuer [Member]
Investments In And Advances To Affiliates [Line Items]
Beginning Value	100,234,751
Ending Value	145,567,003	100,234,751
Affiliated Investments [Member]
Investments In And Advances To Affiliates [Line Items]
Purchases at Cost	126,120,442	229,512,657	271,278,306
Proceeds from Sales	(80,798,385)	(223,545,766)	(246,563,115)
Change in Unrealized Appreciation (Depreciation)	10,195	(1,020)	54,034
Affiliated Investments [Member] \| Exchange Traded Funds [Member]
Investments In And Advances To Affiliates [Line Items]
Change in Unrealized Appreciation (Depreciation)	10,195	(1,020)	54,034
Affiliated Investments [Member] \| Invesco Government & Agency Portfolio, Institutional Class [Member]
Investments In And Advances To Affiliates [Line Items]
Purchases at Cost	126,120,442	229,512,657	271,278,306
Proceeds from Sales	(80,798,385)	(223,545,766)	(246,563,115)
Affiliated Investments [Member] \| Investment, Affiliated Issuer [Member]
Investments In And Advances To Affiliates [Line Items]
Beginning Value	100,234,751	94,268,880	69,499,655
Ending Value	145,567,003	100,234,751	94,268,880
Dividend Income	5,232,858	5,184,488	4,909,542
Affiliated Investments [Member] \| Investment, Affiliated Issuer [Member] \| Exchange Traded Funds [Member]
Investments In And Advances To Affiliates [Line Items]
Beginning Value	21,531,840	21,532,860	21,478,826
Ending Value	21,542,035	21,531,840	21,532,860
Dividend Income	878,258	1,074,086	997,069
Affiliated Investments [Member] \| Investment, Affiliated Issuer [Member] \| Invesco Government & Agency Portfolio, Institutional Class [Member]
Investments In And Advances To Affiliates [Line Items]
Beginning Value	78,702,911	72,736,020	48,020,829
Ending Value	124,024,968	78,702,911	72,736,020
Dividend Income	$ 4,354,599	$ 4,110,402	$ 3,912,473

Invesco DB Precious Metals Fund 10-K