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Supplementary Data (Tables) | 12 Months Ended
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Dec. 31, 2014
Supplementary Data [Abstract] |
Valuation and Qualifying Accounts - Allowance for Uncollectible Accounts Receivable | Valuation and Qualifying Accounts – Allowance for Uncollectible Accounts Receivable
| Years ended December 31,
| 2014 |  | 2013 |  | 2012
Balance at beginning of period | $ | 64.9 |  |  | $ | 59.0 |  |  | $ | 55.4 |
Charges to costs and expenses | 7.4 |  |  | 12.6 |  |  | 16.3 |
Reversals to other accounts1 | 0.1 |  |  | 0.7 |  |  | (0.2 | )
Deductions: |  |  |  |  |
Dispositions | 0.0 |  |  | 0.0 |  |  | (0.4 | )
Uncollectible accounts written off | (8.1 | ) |  | (7.2 | ) |  | (12.6 | )
Foreign currency translation adjustment | (4.8 | ) |  | (0.2 | ) |  | 0.5 |
Balance at end of period | $ | 59.5 |  |  | $ | 64.9 |  |  | $ | 59.0 |
1 | Amounts primarily relate to miscellaneous other amounts and reclassifications.
Property and Equipment | Property and Equipment
|  | December 31,
|  | 2014 |  | 2013
Furniture and equipment |  | $ | 640.7 |  |  | $ | 661.6 |
Leasehold improvements |  | 594.0 |  |  | 611.4 |
Internal use computer software |  | 296.2 |  |  | 269.1 |
Land and buildings |  | 87.3 |  |  | 109.6 |
|  | 1,618.2 |  |  | 1,651.7 |
Less: accumulated depreciation |  | (1,070.0 | ) |  | (1,111.7 | )
Total property and equipment, net |  | 548.2 |  |  | $ | 540.0 |
Accrued Liabilities | Accrued Liabilities The following table presents the components of accrued liabilities.
| December 31,
| 2014 |  | 2013
Salaries, benefits and related expenses | $ | 510.6 |  |  | $ | 467.2 |
Office and related expenses | 51.5 |  |  | 56.9 |
Acquisition obligations | 88.1 |  |  | 12.8 |
Interest | 18.3 |  |  | 16.0 |
Restructuring and other reorganization-related | 5.5 |  |  | 46.7 |
Other | 122.0 |  |  | 118.8 |
Total accrued liabilities | $ | 796.0 |  |  | $ | 718.4 |
Other (Expense) Income, net | Other (Expense) Income, net Results of operations include certain items that are not directly associated with our revenue-producing operations.
| Years ended December 31,
| 2014 |  | 2013 |  | 2012
Loss on early extinguishment of debt | $ | (10.4 | ) |  | $ | (45.2 | ) |  | $ | 0.0 |
Gains on sales of businesses and investments, net | 0.8 |  |  | 1.5 |  |  | 88.2 |
Vendor discounts and credit adjustments | 3.3 |  |  | 8.6 |  |  | 15.3 |
Other (expense) income, net | (3.9 | ) |  | 2.8 |  |  | (3.0 | )
Total other (expense) income, net | $ | (10.2 | ) |  | $ | (32.3 | ) |  | $ | 100.5 |
Share Repurchase Program | The following table presents our share repurchase activity under our share repurchase programs.
| Years ended December 31,
| 2014 |  | 2013 |  | 2012
Number of shares repurchased | 14.9 |  |  | 31.8 |  |  | 32.7 |
Aggregate cost, including fees | $ | 275.1 |  |  | $ | 481.8 |  |  | $ | 350.5 |
Average price per share, including fees | $ | 18.41 |  |  | $ | 15.17 |  |  | $ | 10.72 |
Supplemental Cash Flow Information | Supplemental Cash Flow Information
| Years ended December 31,
| 2014 |  | 2013 |  | 2012
Cash paid for interest | $ | 78.1 |  |  | $ | 110.7 |  |  | $ | 130.6 |
Cash paid for income taxes, net of refunds 1 | 103.9 |  |  | 111.8 |  |  | 95.7 |
1 | Refunds of $21.3, $15.0 and $23.5 were received for the years ended December 31, 2014, 2013 and 2012, respectively.

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