Investments (Summary of the Company's Investment in Joint Ventures and Affiliates) (Details)	Dec. 31, 2020
CHINA | Huaneng Invesco WLR (Beijing) Investment Fund Management Company Ltd.
Segment Reporting Information [Line Items]
% Voting Interest Owned (percent)	50.00%
CHINA | Invesco Great Wall Fund Management Company Limited
Segment Reporting Information [Line Items]
% Voting Interest Owned (percent)	49.00%
POLAND | Pocztylion - ARKA
Segment Reporting Information [Line Items]
% Voting Interest Owned (percent)	29.30%