Investments in Affiliates (Tables)

6 Months Ended

Jun. 30, 2024

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

Summary of Transactions in, and Earnings from, Investments in Affiliates

The following is a summary of the transactions in, and earnings from, investments in affiliates for the three and six months ended June 30, 2024.

	Value 03/31/2024		Purchases at Cost		Proceeds from Sales			Change in Unrealized Appreciation (Depreciation)		Realized Gain (Loss)		Value 06/30/2024		Dividend Income
Investments in Affiliated    Money Market Funds:
Invesco Government &    Agency Portfolio,    Institutional Class	$	134,166,072	$	258,294,906	$	(149,087,560	)	$	—	$	—	$	243,373,418	$	2,941,478

	Value 12/31/2023		Purchases at Cost		Proceeds from Sales			Change in Unrealized Appreciation (Depreciation)		Realized Gain (Loss)		Value 06/30/2024		Dividend Income
Investments in Affiliated    Money Market Funds:
Invesco Government &    Agency Portfolio,    Institutional Class	$	111,534,057	$	489,138,943	$	(357,299,582	)	$	—	$	—	$	243,373,418	$	5,209,447

The following is a summary of the transactions in, and earnings from, investments in affiliates for the three and six months ended June 30, 2023.

	Value 03/31/2023		Purchases at Cost		Proceeds from Sales			Change in Unrealized Appreciation (Depreciation)			Realized Gain (Loss)		Value 06/30/2023		Dividend Income
Invesco Short Term Treasury ETF	$	73,723,258	$	—	$	—		$	(41,916	)	$	—	$	73,681,342	$	808,028
Investments in Affiliated    Money Market Funds:
Invesco Government & Agency Portfolio, Institutional Class		486,113,068		443,406,329		(687,781,359	)		—			—		241,738,038		4,134,750
Total	$	559,836,326	$	443,406,329	$	(687,781,359	)	$	(41,916	)	$	—	$	315,419,380	$	4,942,778

	Value 12/31/2022		Purchases at Cost		Proceeds from Sales			Change in Unrealized Appreciation (Depreciation)		Realized Gain (Loss)		Value 06/30/2023		Dividend Income
Invesco Short Term Treasury ETF	$	73,590,524	$	—	$	—		$	90,818	$	—	$	73,681,342	$	1,515,794
Investments in Affiliated    Money Market Funds:
Invesco Government & Agency Portfolio, Institutional Class		909,560,064		776,556,009		(1,444,378,035	)		—		—		241,738,038		11,756,156
Total	$	983,150,588	$	776,556,009	$	(1,444,378,035	)	$	90,818	$	—	$	315,419,380	$	13,271,950