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Supplementary Data (Tables) | 12 Months Ended
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Dec. 31, 2012
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,
| 2012 |  | 2011 |  | 2010
Balance at beginning of period | $ | 55.4 |  |  | $ | 63.1 |  |  | $ | 66.0 |
Charges to costs and expenses | 16.3 |  |  | 10.4 |  |  | 10.7 |
Reversals to other accounts 1 | (0.2 | ) |  | (0.5 | ) |  | (0.4 | )
Deductions: |  |  |  |  |
Dispositions | (0.4 | ) |  | 0.0 |  |  | (0.5 | )
Uncollectible accounts written off | (12.6 | ) |  | (16.3 | ) |  | (11.8 | )
Foreign currency translation adjustment | 0.5 |  |  | (1.3 | ) |  | (0.9 | )
Balance at end of period | $ | 59.0 |  |  | $ | 55.4 |  |  | $ | 63.1 |
1 | Amounts primarily relate to miscellaneous other amounts and reclassifications.
Furniture, Equipment and Leasehold Improvements, net | Furniture, Equipment and Leasehold Improvements, net
|  | December 31,
|  | 2012 |  | 2011
Furniture and equipment |  | $ | 932.6 |  |  | $ | 881.5 |
Leasehold improvements |  | 597.2 |  |  | 593.0 |
Land and buildings |  | 109.9 |  |  | 111.6 |
|  | 1,639.7 |  |  | 1,586.1 |
Less: accumulated depreciation |  | (1,134.9 | ) |  | (1,126.3 | )
Total furniture, equipment and leasehold improvements, net |  | $ | 504.8 |  |  | $ | 459.8 |
Accrued Liabilities | Accrued Liabilities The following table presents the components of accrued liabilities.
| December 31,
| 2012 |  | 2011
Salaries, benefits and related expenses | $ | 478.2 |  |  | $ | 520.6 |
Office and related expenses | 51.6 |  |  | 57.9 |
Acquisition obligations | 29.5 |  |  | 43.7 |
Interest | 42.4 |  |  | 40.3 |
Professional fees | 21.7 |  |  | 25.3 |
Other | 104.8 |  |  | 142.2 |
Total accrued liabilities | $ | 728.2 |  |  | $ | 830.0 |
Share Repurchase Program | The following table presents our share repurchase activity under our share repurchase programs.
| Years ended December 31,
| 2012 |  | 2011
Number of shares repurchased | 32.7 |  |  | 41.7 |
Aggregate cost, including fees | $ | 350.5 |  |  | $ | 400.8 |
Average price per share, including fees | $ | 10.72 |  |  | $ | 9.62 |
Other Income, net | Results of operations include certain items that are not directly associated with our revenue-producing operations.
| Years ended December 31,
| 2012 |  | 2011 |  | 2010
Gains on sales of businesses and investments | $ | 88.2 |  |  | $ | 125.9 |  |  | $ | 4.3 |
Vendor discounts and credit adjustments | 15.3 |  |  | 19.4 |  |  | 12.7 |
Other (expense) income, net | (3.0 | ) |  | 4.9 |  |  | (4.1 | )
Total other income, net | $ | 100.5 |  |  | $ | 150.2 |  |  | $ | 12.9 |
Supplemental Cash Flow Information | Supplemental Cash Flow Information
| Years ended December 31,
| 2012 |  | 2011 |  | 2010
Cash paid for interest | $ | 130.6 |  |  | $ | 138.9 |  |  | $ | 139.8 |
Cash paid for income taxes, net of refunds 1 | 95.7 |  |  | 102.0 |  |  | 87.3 |
1 | Refunds of $23.5, $25.4 and $28.7 were received for the years ended December 31, 2012, 2011 and 2010, respectively.

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- Definition Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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