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Supplementary Data (Tables) | 9 Months Ended
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Sep. 30, 2012
Supplementary Data [Abstract] |
Accrued Liabilities | The following table presents the components of accrued liabilities.
| September 30, 2012 |  | December 31, 2011
Salaries, benefits and related expenses | $ | 397.4 |  |  | $ | 520.6 |
Office and related expenses | 46.7 |  |  | 57.9 |
Acquisition obligations | 19.4 |  |  | 43.7 |
Interest | 24.3 |  |  | 40.3 |
Professional fees | 20.6 |  |  | 25.3 |
Other | 141.6 |  |  | 139.3 |
Total accrued liabilities | $ | 650.0 |  |  | $ | 827.1 |
Other Income, net | Results of operations for the three and nine months ended September 30, 2012 and 2011 include certain items that are not directly associated with our revenue-producing operations.
| Three months ended September 30, |  | Nine months ended September 30,
| 2012 |  | 2011 |  | 2012 |  | 2011
(Losses) gains on sales of businesses and investments | $ | (3.4 | ) |  | $ | 132.0 |  |  | $ | (5.2 | ) |  | $ | 125.8 |
Vendor discounts and credit adjustments | 5.0 |  |  | 4.8 |  |  | 9.9 |  |  | 7.7 |
Other income, net | 0.1 |  |  | 0.3 |  |  | 0.4 |  |  | 2.8 |
Total other income, net | $ | 1.7 |  |  | $ | 137.1 |  |  | $ | 5.1 |  |  | $ | 136.3 |
Share Repurchase Program | The following table presents our share repurchase activity under our share repurchase programs.
| Nine months ended September 30,
| 2012 |  | 2011
Number of shares repurchased | 18.6 |  |  | 27.0 |
Aggregate cost, including fees | $ | 201.4 |  |  | $ | 269.0 |
Average price per share, including fees | $ | 10.85 |  |  | $ | 9.97 |

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