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3. Fair Value Measurements (Tables) | 3 Months Ended
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Mar. 31, 2013
Fair Value Measurements [Abstract] |
Schedule of financial assets and liabilities carried at fair value on a recurring basis | Financial assets and liabilities carried at fair value and measured on a recurring basis as of March 31, 2013 are classified in the hierarchy as follows (in millions):
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Financial Assets Carried at Fair Value: |  |  |  |  |  |  |
Cash equivalents (a): |  |  |  |  |  |  |
Commercial paper | $ | — |  |  | $ | 41.6 |  |  | $ | — |  |  | $ | 41.6 |
Asset-backed securities | — |  |  | 0.3 |  |  | — |  |  | 0.3 |
U.S. government sponsored agencies | — |  |  | 2.3 |  |  | — |  |  | 2.3 |
Foreign time deposits | 9.8 |  |  | — |  |  | — |  |  | 9.8 |
Money market funds | 8.3 |  |  | — |  |  | — |  |  | 8.3 |
Total cash equivalents | 18.1 |  |  | 44.2 |  |  | — |  |  | 62.3 |
Available-for-sale investments (b): |  |  |  |  |  |  |
Corporate debt securities | — |  |  | 250.1 |  |  | — |  |  | 250.1 |
Foreign brokered certificates of deposit | — |  |  | 4.4 |  |  | — |  |  | 4.4 |
U.S. government sponsored agencies | — |  |  | 80.7 |  |  | — |  |  | 80.7 |
Foreign government obligations | — |  |  | 5.3 |  |  | — |  |  | 5.3 |
Municipal obligations | — |  |  | 13.6 |  |  | — |  |  | 13.6 |
Marketable equity securities | 289.3 |  |  | — |  |  | — |  |  | 289.3 |
Asset-backed securities | — |  |  | 87.1 |  |  | — |  |  | 87.1 |
Total available-for-sale investments | 289.3 |  |  | 441.2 |  |  | — |  |  | 730.5 |
Forward foreign exchange contracts (c) | — |  |  | 1.3 |  |  | — |  |  | 1.3 |
Total financial assets carried at fair value | $ | 307.4 |  |  | $ | 486.7 |  |  | $ | — |  |  | $ | 794.1 |
Financial Liabilities Carried at Fair Value: |  |  |  |  |  |  |
Forward foreign exchange contracts (d) | $ | — |  |  | $ | 0.3 |  |  | $ | — |  |  | $ | 0.3 |
Contingent consideration (e) | — |  |  | — |  |  | 40.9 |  |  | 40.9 |
Total financial liabilities carried at fair value | $ | — |  |  | $ | 0.3 |  |  | $ | 40.9 |  |  | $ | 41.2 |
Financial assets and liabilities carried at fair value and measured on a recurring basis as of December 31, 2012 are classified in the hierarchy as follows (in millions):
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Financial Assets Carried at Fair Value: |  |  |  |  |  |  |
Cash equivalents (a): |  |  |  |  |  |  |
Commercial paper | $ | — |  |  | $ | 52.8 |  |  | $ | — |  |  | $ | 52.8 |
Foreign time deposits | 10.1 |  |  | — |  |  | — |  |  | 10.1 |
U.S. government sponsored agencies | — |  |  | 1.3 |  |  | — |  |  | 1.3 |
Money market funds | 5.5 |  |  | — |  |  | — |  |  | 5.5 |
Total cash equivalents | 15.6 |  |  | 54.1 |  |  | — |  |  | 69.7 |
Available-for-sale investments (b): |  |  |  |  |  |  |
Corporate debt securities | — |  |  | 240.6 |  |  | — |  |  | 240.6 |
Foreign brokered certificates of deposit | — |  |  | 0.4 |  |  | — |  |  | 0.4 |
U.S. government sponsored agencies | — |  |  | 92.7 |  |  | — |  |  | 92.7 |
Foreign government obligations | — |  |  | 5.6 |  |  | — |  |  | 5.6 |
Municipal obligations | — |  |  | 12.1 |  |  | — |  |  | 12.1 |
Marketable equity securities | 242.1 |  |  | — |  |  | — |  |  | 242.1 |
Asset-backed securities | — |  |  | 82.2 |  |  | — |  |  | 82.2 |
Total available-for-sale investments | 242.1 |  |  | 433.6 |  |  | — |  |  | 675.7 |
Forward foreign exchange contracts (c) | — |  |  | 1.1 |  |  | — |  |  | 1.1 |
Total financial assets carried at fair value | $ | 257.7 |  |  | $ | 488.8 |  |  | $ | — |  |  | $ | 746.5 |
Financial Liabilities Carried at Fair Value: |  |  |  |  |  |  |
Forward foreign exchange contracts (d) | $ | — |  |  | $ | 0.8 |  |  | $ | — |  |  | $ | 0.8 |
Contingent consideration (e) | — |  |  | — |  |  | 52.6 |  |  | 52.6 |
Total financial liabilities carried at fair value | $ | — |  |  | $ | 0.8 |  |  | $ | 52.6 |  |  | $ | 53.4 |
(a) | Cash equivalents are included in Cash and cash equivalents in the Condensed Consolidated Balance Sheets.
(b) | Available-for-sale investments are included in the following accounts in the Condensed Consolidated Balance Sheets (in millions):
| March 31, 2013 |  | December 31, 2012
Short-term investments | $ | 468.2 |  |  | $ | 457.7 |
Other assets | 262.3 |  |  | 218.0 |
Total | $ | 730.5 |  |  | $ | 675.7 |
(c) | Forward foreign exchange contracts in an asset position are included in Prepaid expenses, taxes and other current assets in the Condensed Consolidated Balance Sheets.
(d) | Forward foreign exchange contracts in a liability position are included in Other current liabilities in the Condensed Consolidated Balance Sheets.
(e) | Contingent consideration liability is included in the following accounts in the Condensed Consolidated Balance Sheet (in millions):
| March 31, 2013 |  | December 31, 2012
Other current liabilities | $ | 16.2 |  |  | $ | 27.3 |
Other long-term liabilities | 24.7 |  |  | 25.3 |
Total | $ | 40.9 |  |  | $ | 52.6 |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] | The following table provides a reconciliation of the Level 3 contingent consideration liabilities measured at fair value based on third party valuations for the period ended March 31, 2013 (in millions):
| 2013
January 1 | $ | 52.6 |
Payment of development milestone - QuantaLife | (6.0 | )
Payment of development milestone - Cell sorting system | (5.0 | )
Decrease in fair value of contingent consideration included in Selling, general and administrative expense - QuantaLife | (0.7 | )
March 31 | $ | 40.9 |
Fair Value Inputs, Liabilities, Quantitative Information [Table Text Block] | The following table provides quantitative information about Level 3 inputs for fair value measurement of our contingent consideration liabilities as of March 31, 2013. Significant increases or decreases in these inputs in isolation could result in a significantly lower or higher fair value measurement.
|  |  | Range
| Valuation Technique | Unobservable Input | From | To
QuantaLife | Probability-weighted income approach | Sales milestones: |  |
|  | Credit adjusted discount rates | 0.67% | 0.88%
|  | Probability of achieving sales | 25.0% | 90.0%
Cell sorting system | Probability-weighted income approach | Sales milestones: |  |
|  | Credit adjusted discount rates | 1.0% | 1.7%
|  | Projected volatility of sales | 18.0% | N/A
|  | Market price of risk | 1.4% | N/A
|  | Development milestones: |  |
|  | Probability | 100% | N/A
|  | Risk-adjusted discount rate | 0.9% | 1.0%
Discussion of current derivative risk management | The following is a summary of our forward foreign currency exchange contracts (in millions):
| March 31,
| 2013
Contracts maturing in April through June 2013 to sell foreign currency: |
Notional value | $ | 76.6 |
Unrealized gain | $ | 0.2 |
Contracts maturing in April through June 2013 to purchase foreign currency: |
Notional value | $ | 385.1 |
Unrealized gain | $ | 0.7 |
Schedule of available-for-sale investments | Available-for-sale investments consist of the following (in millions):
| March 31, 2013
| Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Estimated Fair Value
Short-term investments: |  |  |  |  |  |  |
Corporate debt securities | $ | 248.9 |  |  | $ | 1.4 |  |  | $ | (0.2 | ) |  | $ | 250.1 |
Foreign brokered certificates of deposit | 4.4 |  |  | — |  |  | — |  |  | 4.4 |
Municipal obligations | 13.5 |  |  | 0.1 |  |  | — |  |  | 13.6 |
Asset-backed securities | 86.6 |  |  | 0.2 |  |  | (0.1 | ) |  | 86.7 |
U.S. government sponsored agencies | 80.6 |  |  | 0.1 |  |  | — |  |  | 80.7 |
Foreign government obligations | 5.3 |  |  | — |  |  | — |  |  | 5.3 |
Marketable equity securities | 25.0 |  |  | 2.4 |  |  | — |  |  | 27.4 |
| 464.3 |  |  | 4.2 |  |  | (0.3 | ) |  | 468.2 |
Long-term investments: |  |  |  |  |  |  |
Marketable equity securities | 54.5 |  |  | 207.4 |  |  | — |  |  | 261.9 |
Asset-backed securities | 0.4 |  |  | — |  |  | — |  |  | 0.4 |
| 54.9 |  |  | 207.4 |  |  | — |  |  | 262.3 |
Total | $ | 519.2 |  |  | $ | 211.6 |  |  | $ | (0.3 | ) |  | $ | 730.5 |
| December 31, 2012
| Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Estimated Fair Value
Short-term investments: |  |  |  |  |  |  |
Corporate debt securities | $ | 239.3 |  |  | $ | 1.4 |  |  | $ | (0.1 | ) |  | $ | 240.6 |
Foreign brokered certificates of deposit | 0.4 |  |  | — |  |  | — |  |  | 0.4 |
Municipal obligations | 12.0 |  |  | 0.1 |  |  | — |  |  | 12.1 |
Asset-backed securities | 81.6 |  |  | 0.4 |  |  | (0.1 | ) |  | 81.9 |
U.S. government sponsored agencies | 92.5 |  |  | 0.3 |  |  | (0.1 | ) |  | 92.7 |
Foreign government obligations | 5.4 |  |  | — |  |  | — |  |  | 5.4 |
Marketable equity securities | 24.1 |  |  | 0.7 |  |  | (0.2 | ) |  | 24.6 |
| 455.3 |  |  | 2.9 |  |  | (0.5 | ) |  | 457.7 |
Long-term investments: |  |  |  |  |  |  |
Marketable equity securities | 54.5 |  |  | 163.0 |  |  | — |  |  | 217.5 |
Asset-backed securities | 0.4 |  |  | — |  |  | (0.1 | ) |  | 0.3 |
Foreign government obligations | 0.2 |  |  | — |  |  | — |  |  | 0.2 |
| 55.1 |  |  | 163.0 |  |  | (0.1 | ) |  | 218.0 |
Total | $ | 510.4 |  |  | $ | 165.9 |  |  | $ | (0.6 | ) |  | $ | 675.7 |
Summary of fair value of gross unrealized losses for investments with unrealized losses | The following is a summary of investments with gross unrealized losses and the associated fair value (in millions):
| March 31, 2013 |  | December 31, 2012
Fair value | $ | 97.5 |  |  | $ | 99.3 |
Gross unrealized losses for investments in a loss position 12 months or more | $ | — |  |  | $ | 0.1 |
Gross unrealized losses for investments in a loss position less than 12 months | $ | 0.3 |  |  | $ | 0.5 |
Summary of amortized cost and estimated fair value of debt securities by contractual maturity date | The following is a summary of the amortized cost and estimated fair value of our debt securities at March 31, 2013 by contractual maturity date (in millions):
| Amortized Cost |  | Estimated Fair Value
Mature in less than one year | $ | 169.9 |  |  | $ | 169.9 |
Mature in one to five years | 197.7 |  |  | 198.3 |
Mature in more than five years | 72.1 |  |  | 73.0 |
Total | $ | 439.7 |  |  | $ | 441.2 |
Estimated fair value of financial instruments | The estimated fair value of our financial instruments and the level of the fair value hierarchy within which the fair value measurement is categorized are as follows (in millions):
| March 31, 2013 |  | December 31, 2012
| Carrying Amount |  | Estimated Fair Value |  | Fair Value Hierarchy Level |  | Carrying Amount |  | Estimated Fair Value |  | Fair Value Hierarchy Level
Other assets | $ | 339.8 |  |  | $ | 609.1 |  |  | 1 |  | $ | 293.6 |  |  | $ | 497.8 |  |  | 1
Total long-term debt, excluding leases and current maturities | $ | 720.2 |  |  | $ | 762.1 |  |  | 2 |  | $ | 720.0 |  |  | $ | 778.4 |  |  | 2

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- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27198-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-1 -Paragraph 21 -Subparagraph a, b -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 17 -Subparagraph a, b -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 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27337-111563 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19, 20, 21 -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 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 + Details
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- Definition Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 14 -Subparagraph a -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 18 -Subparagraph c(2), d, e, f -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 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 15 -Subparagraph b-d -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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13467-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 19 -Subparagraph a, b, c(1), d(1) -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 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6447952&loc=d3e13220-108610 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph a, c(1), c(2), c(3), d -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 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 10 -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 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13476-108611 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 + Details
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- Definition Tabular disclosure of quantitative information about the inputs used in the fair value measurement of liabilities. This disclosure may include, but is not limited to, the fair value of the liability, valuation technique used to measure fair value, the inputs used to measure fair value, the ranges of the inputs, and the weighted averages of the inputs. + 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 (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + 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=7578670&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=7578670&loc=d3e19279-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c -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. + 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=7578670&loc=d3e19190-110258 + Details
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