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Intangible Assets Intangible Assets (Tables) | 3 Months Ended
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Mar. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of changes in goodwill | The following tables present the change in goodwill and components of acquired client relationships during the three months ended March 31, 2014:
|  | Goodwill
|  | Institutional |  | Mutual Fund |  | High Net Worth |  | Total
Balance, as of December 31, 2013 |  | $ | 1,076.3 |  |  | $ | 928.1 |  |  | $ | 337.3 |  |  | $ | 2,341.7 |
Goodwill acquired |  | 20.4 |  |  | 12.9 |  |  | 22.4 |  |  | 55.7 |
Foreign currency translation |  | (7.0 | ) |  | (0.1 | ) |  | (4.4 | ) |  | (11.5 | )
Balance, as of March 31, 2014 |  | $ | 1,089.7 |  |  | $ | 940.9 |  |  | $ | 355.3 |  |  | $ | 2,385.9 |
Schedule of changes in and the components of acquired client relationships |
| Acquired Client Relationships
| Definite-lived |  | Indefinite-lived |  | Total
| Gross Book Value |  | Accumulated Amortization |  | Net Book Value |  | Net Book Value |  | Net Book Value
Balance, as of December 31, 2013 | $ | 1,039.5 |  |  | $ | (442.8 | ) |  | $ | 596.7 |  |  | $ | 864.0 |  |  | $ | 1,460.7 |
New Investments | 81.5 |  |  | — |  |  | 81.5 |  |  | 45.4 |  |  | 126.9 |
Amortization and impairments | — |  |  | (27.4 | ) |  | (27.4 | ) |  | — |  |  | (27.4 | )
Foreign currency translation | (0.7 | ) |  | — |  |  | (0.7 | ) |  | 1.6 |  |  | 0.9 |
Balance, as of March 31, 2014 | $ | 1,120.3 |  |  | $ | (470.2 | ) |  | $ | 650.1 |  |  | $ | 911.0 |  |  | $ | 1,561.1 |

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- Definition Tabular disclosure of intangibles assets, in total and by major class, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. + References No definition available. + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 + Details
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