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Fair Value Measurements (Tables) | 3 Months Ended
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Mar. 31, 2015
Fair Value Disclosures [Abstract] |
Fair Value, Assets and Liabilities Measured on Recurring Basis | The following tables present information about our financial instruments measured at fair value on a recurring basis as of March 31, 2015 and December 31, 2014, and indicate the fair value hierarchy of the valuation techniques utilized to determine such fair value.
| March 31, 2015 |  | Balance Sheet Classification
| Level 1 |  | Level 2 |  | Level 3 |  | Total |
Assets |  |  |  |  |  |  |  |  |
Cash equivalents | $ | 244.6 |  |  | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | 244.6 |  |  | Cash and cash equivalents
Short-term marketable securities | 6.9 |  |  | 0.0 |  |  | 0.0 |  |  | 6.9 |  |  | Marketable securities
Long-term investments | 0.5 |  |  | 0.0 |  |  | 0.0 |  |  | 0.5 |  |  | Other non-current assets
Total | $ | 252.0 |  |  | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | 252.0 |  |  |
As a percentage of total assets | 2.2 | % |  | 0.0 | % |  | 0.0 | % |  | 2.2 | % |  |
Liabilities |  |  |  |  |  |  |  |  |
Mandatorily redeemable noncontrolling interests 1 | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | 46.8 |  |  | $ | 46.8 |  |  |
| December 31, 2014 |  | Balance Sheet Classification
| Level 1 |  | Level 2 |  | Level 3 |  | Total |
Assets |  |  |  |  |  |  |  |  |
Cash equivalents | $ | 901.4 |  |  | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | 901.4 |  |  | Cash and cash equivalents
Short-term marketable securities | 6.6 |  |  | 0.0 |  |  | 0.0 |  |  | 6.6 |  |  | Marketable securities
Long-term investments | 0.5 |  |  | 0.0 |  |  | 0.0 |  |  | 0.5 |  |  | Other non-current assets
Total | $ | 908.5 |  |  | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | 908.5 |  |  |
As a percentage of total assets | 7.1 | % |  | 0.0 | % |  | 0.0 | % |  | 7.1 | % |  |
Liabilities |  |  |  |  |  |  |  |  |
Mandatorily redeemable noncontrolling interests 1 | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | 32.8 |  |  | $ | 32.8 |  |  |
1 | Relates to unconditional obligations to purchase additional noncontrolling equity shares of consolidated subsidiaries. Fair value measurement of the obligation was based upon the amount payable as if the forward contracts were settled. The amount redeemable within the next twelve months is classified in accrued liabilities; any interests redeemable thereafter are classified in other non-current liabilities.
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation | The following table presents additional information about financial instruments measured at fair value on a recurring basis and for which we utilized Level 3 inputs to determine fair value for the three months ended March 31, 2015 and 2014.
| Three months ended March 31,
Liabilities | 2015 |  | 2014
Mandatorily redeemable noncontrolling interests - Balance at beginning of period | $ | 32.8 |  |  | $ | 27.0 |
Level 3 additions | 15.0 |  |  | 2.0 |
Level 3 reductions | (1.4 | ) |  | 0.0 |
Realized losses/(gains) included in net income | 0.4 |  |  | (0.1 | )
Mandatorily redeemable noncontrolling interests - Balance at end of period | $ | 46.8 |  |  | $ | 28.9 |
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis | The following table presents information about our financial instruments that are not measured at fair value on a recurring basis as of March 31, 2015, and December 31, 2014, and indicates the fair value hierarchy of the valuation techniques utilized to determine such fair value.
| March 31, 2015 |  | December 31, 2014
| Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Total long-term debt | $ | 0.0 |  |  | $ | 1,610.4 |  |  | $ | 77.3 |  |  | $ | 1,687.7 |  |  | $ | 0.0 |  |  | $ | 1,566.0 |  |  | $ | 80.4 |  |  | $ | 1,646.4 |

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- Definition Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19296-110258 + Details
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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19279-110258 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19190-110258 + Details
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