Investments (Summary of the Company's Investment in Joint Ventures and Affiliates) (Details)	Dec. 31, 2016
CHINA | Huaneng Invesco WLR Investment Consulting Company Limited [Member]
Equity Method Investment, Ownership Percentage	50.00%
CHINA | Invesco Great Wall Fund Management Company Limited [Member]
Equity Method Investment, Ownership Percentage	49.00%
POLAND | Pocztylion - ARKA [Member]
Equity Method Investment, Ownership Percentage	29.30%