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Business Combinations - Schedule of Purchase Price Allocation (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Business Acquisition |  |  |
Goodwill | $ 2,689.2 | $ 2,661.4 | $ 2,651.7
Parnassus & Abacus |  |  |
Business Acquisition |  |  |
Consideration paid | 363.0 |  |
Deferred obligations | 211.6 |  |
Contingent payment obligations | 18.1 |  |
Lease contract | (0.8) |  |
Tangible assets, net | 2.7 |  |
Goodwill | 30.5 |  |
Total purchase price | 994.4 |  |
Parnassus & Abacus | Acquired client relationships |  |  |
Business Acquisition |  |  |
Intangible assets | 957.0 |  |
Parnassus & Abacus | Trade name |  |  |
Business Acquisition |  |  |
Intangible assets | 5.0 |  |
Parnassus & Abacus | Affiliated Managers Group, Inc. and Coinvestor |  |  |
Business Acquisition |  |  |
Consideration paid | 462.6 |  |
Deferred obligations | 261.1 |  |
Contingent payment obligations | 23.7 |  |
Retained equity interests | 247.0 |  |
Enterprise value | $ 994.4 |  |

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