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Acquisitions (Tables) | 9 Months Ended
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Sep. 30, 2015
Business Combinations [Abstract] |
Cash Paid For Acquisitions | Details of cash paid for current and prior years' acquisitions are listed below.
| Nine months ended September 30,
| 2015 |  | 2014
Cost of investment: current-year acquisitions | $ | 8.3 |  |  | $ | 87.2 |
Cost of investment: prior-year acquisitions | 31.8 |  |  | 13.3 |
Less: net cash acquired | (2.4 | ) |  | (24.9 | )
Total cost of investment | 37.7 |  |  | 75.6 |
Operating expense 1 | 17.6 |  |  | 1.8 |
Total cash paid for acquisitions 2 | $ | 55.3 |  |  | $ | 77.4 |
1 | Represents cash payments made that were either in excess of the initial value of contingent payments or contingent upon the future employment of the former owners of the acquired companies and are recorded in the operating section of the Consolidated Statements of Cash Flows.
2 | Of the total cash paid for acquisitions, $31.8 and $12.7 for the nine months ended September 30, 2015, and 2014, respectively, are classified under the financing section of the unaudited Consolidated Statements of Cash Flows as acquisition-related payments. These amounts relate to deferred payments and increases in our ownership interest for prior acquisitions. $5.9 and $62.9 for the nine months ended September 30, 2015, and 2014, respectively, are classified under the investing section of the unaudited Consolidated Statements of Cash Flows, as acquisitions, net of cash acquired. These amounts relate to initial payments for new transactions.
Changes in Redeemable Noncontrolling Interests | The following table presents changes in our redeemable noncontrolling interests.
| Nine months ended September 30,
| 2015 |  | 2014
Balance at beginning of period | $ | 257.4 |  |  | $ | 249.1 |
Change in related noncontrolling interests balance | (9.4 | ) |  | (6.7 | )
Changes in redemption value of redeemable noncontrolling interests: |  |  |
Additions | 0.5 |  |  | 22.0 |
Redemptions and other | (24.4 | ) |  | (4.5 | )
Redemption value adjustments 1 | 2.4 |  |  | (4.6 | )
Balance at end of period | $ | 226.5 |  |  | $ | 255.3 |
1 | In each reporting period, redeemable noncontrolling interests are reported at their estimated redemption value, but not less than their initial fair value. Any adjustment to the redemption value above initial value prior to exercise will also impact retained earnings or additional paid-in capital, except adjustments as a result of currency translation.

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