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Quarterly Operating Results (unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract] |
Schedule of Quarterly Operating Results | Quarterly operating results for 2018 and 2017 were as follows (in millions, except per share data):
|  | 1st |  |  | 2nd |  |  | 3rd |  |  | 4th |
2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  | $ | 1,837.7 |  |  | $ | 1,660.4 |  |  | $ | 1,778.5 |  |  | $ | 1,657.4 |
Total expenses |  |  | 1,595.4 |  |  |  | 1,556.8 |  |  |  | 1,688.2 |  |  |  | 1,614.2 |
Earnings before income taxes |  | $ | 242.3 |  |  | $ | 103.6 |  |  | $ | 90.3 |  |  | $ | 43.2 |
Net earnings attributable to controlling interests |  | $ | 273.7 |  |  | $ | 114.9 |  |  | $ | 127.6 |  |  | $ | 117.3 |
Basic net earnings per share |  | $ | 1.51 |  |  | $ | 0.63 |  |  | $ | 0.70 |  |  | $ | 0.64 |
Diluted net earnings per share |  | $ | 1.48 |  |  | $ | 0.62 |  |  | $ | 0.68 |  |  | $ | 0.63 |
2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  | $ | 1,646.4 |  |  | $ | 1,489.5 |  |  | $ | 1,593.7 |  |  | $ | 1,519.4 |
Total expenses |  |  | 1,446.8 |  |  |  | 1,435.4 |  |  |  | 1,516.8 |  |  |  | 1,490.2 |
Earnings before income taxes |  | $ | 199.6 |  |  | $ | 54.1 |  |  | $ | 76.9 |  |  | $ | 29.2 |
Net earnings attributable to controlling interests |  | $ | 228.8 |  |  | $ | 70.0 |  |  | $ | 111.0 |  |  | $ | 71.5 |
Basic net earnings per share |  | $ | 1.28 |  |  | $ | 0.39 |  |  | $ | 0.61 |  |  | $ | 0.39 |
Diluted net earnings per share |  | $ | 1.27 |  |  | $ | 0.39 |  |  | $ | 0.61 |  |  | $ | 0.39 |

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109225645&loc=d3e1280-108306 + Details
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