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Segment adn Geographic Information - Schedule of Segment Information (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 550.3 | $ 544.7 | $ 554.1 | $ 545.4 | $ 589.8 | $ 613.1 | $ 646.6 | $ 635.0 | $ 2,194.6 | $ 2,484.5 | $ 2,510.9
Net income (controlling interest) | 150.2 | $ 110.2 | $ 108.3 | $ 104.0 | 147.5 | $ 107.7 | $ 127.6 | $ 126.7 | 472.8 | 509.5 | 433.9
Total assets | 8,749.1 |  |  |  | 7,769.4 |  |  |  | 8,749.1 | 7,769.4 | 7,683.5
Goodwill | 2,628.1 |  |  |  | 2,668.4 |  |  |  | 2,628.1 | 2,668.4 | 2,652.8
Equity method investments in Affiliates | 3,368.3 |  |  |  | 1,937.1 |  |  |  | 3,368.3 | 1,937.1 | 1,783.5
Institutional |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 878.5 | 979.4 | 1,022.8
Net income (controlling interest) |  |  |  |  |  |  |  |  | 246.7 | 226.4 | 217.9
Total assets | 4,386.4 |  |  |  | 3,717.1 |  |  |  | 4,386.4 | 3,717.1 | 3,731.4
Goodwill | 1,136.2 |  |  |  | 1,141.3 |  |  |  | 1,136.2 | 1,141.3 | 1,159.1
Equity method investments in Affiliates | 2,796.9 |  |  |  | 1,609.3 |  |  |  | 2,796.9 | 1,609.3 | 1,533.8
Mutual Fund |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 1,036.0 | 1,238.2 | 1,242.6
Net income (controlling interest) |  |  |  |  |  |  |  |  | 177.8 | 226.8 | 172.9
Total assets | 3,360.4 |  |  |  | 3,070.5 |  |  |  | 3,360.4 | 3,070.5 | 3,077.5
Goodwill | 1,082.5 |  |  |  | 1,119.5 |  |  |  | 1,082.5 | 1,119.5 | 1,125.3
Equity method investments in Affiliates | 412.2 |  |  |  | 185.7 |  |  |  | 412.2 | 185.7 | 150.3
High Net Worth |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 280.1 | 266.9 | 245.5
Net income (controlling interest) |  |  |  |  |  |  |  |  | 48.3 | 56.3 | 43.1
Total assets | 1,002.3 |  |  |  | 981.8 |  |  |  | 1,002.3 | 981.8 | 874.6
Goodwill | 409.4 |  |  |  | 407.6 |  |  |  | 409.4 | 407.6 | 368.4
Equity method investments in Affiliates | $ 159.2 |  |  |  | $ 142.1 |  |  |  | $ 159.2 | $ 142.1 | $ 99.4

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