Investments in Affiliates (Tables)

12 Months Ended

Dec. 31, 2024

Investments in and Advances to Affiliates, Schedule of Investments [Abstract]

Summary of Transactions in, and Earnings from, Investments in Affiliates (Excluding Affiliated Money Market Funds)

The following is a summary of the transactions in, and earnings from, investments in affiliates for the year ended December 31, 2024.

	Value 12/31/2023		Purchases at Cost		Proceeds from Sales			Change in Unrealized Appreciation (Depreciation)			Realized Gain (Loss)		Value 12/31/2024		Dividend Income
Invesco Short Term     Treasury ETF	$	215,381,398	$	—	$	—		$	(10,198	)	$	—	$	215,371,200	$	10,743,495
Investments in Affiliated      Money Market Funds:
Invesco Government &     Agency Portfolio,     Institutional Class		692,738,727		2,207,958,507		(2,239,424,067	)		—			—		661,273,167		35,263,436
Total	$	908,120,125	$	2,207,958,507	$	(2,239,424,067	)	$	(10,198	)	$	—	$	876,644,367	$	46,006,931

The following is a summary of the transactions in, and earnings from, investments in affiliates for the year ended December 31, 2023.

	Value 12/31/2022		Purchases at Cost		Proceeds from Sales			Change in Unrealized Appreciation (Depreciation)		Realized Gain (Loss)		Value 12/31/2023		Dividend Income
Invesco Treasury    Collateral ETF	$	141,250,406	$	73,677,151	$	—		$	453,841	$	—	$	215,381,398	$	8,154,302
Investments in Affiliated      Money Market Funds:
Invesco Government &     Agency Portfolio,     Institutional Class		1,284,100,134		3,481,583,930		(4,072,945,337	)		—		—		692,738,727		53,660,273
Total	$	1,425,350,540	$	3,555,261,081	$	(4,072,945,337	)	$	453,841	$	—	$	908,120,125	$	61,814,575

The following is a summary of the transactions in, and earnings from, investments in affiliates for the year ended December 31, 2022.

	Value 12/31/2021		Purchases at Cost		Proceeds from Sales			Change in Unrealized Appreciation (Depreciation)			Realized Gain (Loss)			Value 12/31/2022		Dividend Income
Invesco Treasury    Collateral ETF	$	192,860,687	$	21,093,803	$	(72,078,159	)	$	(522,617	)	$	(103,308	)	$	141,250,406	$	2,887,237
Investments in Affiliated      Money Market Funds:
Invesco Government &     Agency Portfolio,     Institutional Class		1,811,356,075		7,443,115,283		(7,970,371,224	)		—			—			1,284,100,134		28,222,082
Total	$	2,004,216,762	$	7,464,209,086	$	(8,042,449,383	)	$	(522,617	)	$	(103,308	)	$	1,425,350,540	$	31,109,319