Investments in Affiliates (Tables)

3 Months Ended

Mar. 31, 2020

Investments In And Advances To Affiliates Schedule Of Investments [Abstract]

Summary of Transactions in, and Earnings from, Investments in Invesco Treasury Collateral Portfolio

The following is a summary of the transactions in, and earnings from, investments in affiliates (excluding affiliated money market mutual funds) for the three months ended March 31, 2020.

	Value 12/31/2019		Purchases at Cost		Proceeds from Sales		Change in Unrealized Appreciation (Depreciation)		Realized Gain (Loss)		Value 03/31/2020		Dividend Income
Invesco Treasury Collateral ETF	$	16,031,526	$	—	$	—	$	98,735	$	—	$	16,130,261	$	66,819

The following is a summary of the transactions in, and earnings from, investments in affiliates (excluding affiliated money market mutual funds) for the three months ended March 31, 2019.

	Value 12/31/2018		Purchases at Cost		Proceeds from Sales		Change in Unrealized Appreciation (Depreciation)		Realized Gain (Loss)		Value 03/31/2019		Dividend Income
Invesco Treasury Collateral ETF		16,016,336	$	—	$	—	$	7,595	$	—	$	16,023,931	$	92,542