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3. Fair Value Measurements (Tables) | 6 Months Ended
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Jun. 30, 2016
Fair Value Disclosures [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 June 30, 2016 are classified in the hierarchy as follows (in millions):
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Financial Assets Carried at Fair Value: |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |
Commercial paper | $ | — |  |  | $ | 21.0 |  |  | $ | — |  |  | $ | 21.0 |
U.S. government sponsored agencies | — |  |  | 5.0 |  |  | — |  |  | 5.0 |
Foreign government obligations | — |  |  | 1.8 |  |  | — |  |  | 1.8 |
Foreign time deposits | 21.1 |  |  | — |  |  | — |  |  | 21.1 |
Domestic time deposits | 20.0 |  |  | — |  |  | — |  |  | 20.0 |
Money market funds | 5.1 |  |  | — |  |  | — |  |  | 5.1 |
Total cash equivalents (a) | 46.2 |  |  | 27.8 |  |  | — |  |  | 74.0 |
Restricted investment: | 4.2 |  |  | — |  |  | — |  |  | 4.2 |
Available-for-sale investments: |  |  |  |  |  |  |
Corporate debt securities | — |  |  | 175.2 |  |  | — |  |  | 175.2 |
U.S. government sponsored agencies | — |  |  | 79.4 |  |  | — |  |  | 79.4 |
Foreign government obligations | — |  |  | 6.7 |  |  | — |  |  | 6.7 |
Municipal obligations | — |  |  | 10.6 |  |  | — |  |  | 10.6 |
Marketable equity securities | 751.4 |  |  | — |  |  | — |  |  | 751.4 |
Asset-backed securities | — |  |  | 67.5 |  |  | — |  |  | 67.5 |
Total available-for-sale investments (b) | 751.4 |  |  | 339.4 |  |  | — |  |  | 1,090.8 |
Forward foreign exchange contracts (c) | — |  |  | 0.6 |  |  | — |  |  | 0.6 |
Total financial assets carried at fair value | $ | 801.8 |  |  | $ | 367.8 |  |  | $ | — |  |  | $ | 1,169.6 |
Financial Liabilities Carried at Fair Value: |  |  |  |  |  |  |
Forward foreign exchange contracts (d) | $ | — |  |  | $ | 1.4 |  |  | $ | — |  |  | $ | 1.4 |
Contingent consideration (e) | — |  |  | — |  |  | 43.0 |  |  | 43.0 |
Total financial liabilities carried at fair value | $ | — |  |  | $ | 1.4 |  |  | $ | 43.0 |  |  | $ | 44.4 |
Financial assets and liabilities carried at fair value and measured on a recurring basis as of December 31, 2015 are classified in the hierarchy as follows (in millions):
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Financial Assets Carried at Fair Value: |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |
Commercial paper | $ | — |  |  | $ | 33.2 |  |  | $ | — |  |  | $ | 33.2 |
Foreign government obligations | — |  |  | 0.6 |  |  | — |  |  | 0.6 |
Foreign time deposits | 11.9 |  |  | — |  |  | — |  |  | 11.9 |
U.S. government sponsored agencies | — |  |  | 14.6 |  |  | — |  |  | 14.6 |
Money market funds | 11.3 |  |  | — |  |  | — |  |  | 11.3 |
Total cash equivalents (a) | 23.2 |  |  | 48.4 |  |  | — |  |  | 71.6 |
Restricted investment: | 4.2 |  |  | — |  |  | — |  |  | 4.2 |
Available-for-sale investments: |  |  |  |  |  |  |
Corporate debt securities | — |  |  | 156.9 |  |  | — |  |  | 156.9 |
U.S. government sponsored agencies | — |  |  | 74.8 |  |  | — |  |  | 74.8 |
Foreign government obligations | — |  |  | 4.6 |  |  | — |  |  | 4.6 |
Municipal obligations | — |  |  | 6.4 |  |  | — |  |  | 6.4 |
Marketable equity securities | 660.1 |  |  | — |  |  | — |  |  | 660.1 |
Asset-backed securities | — |  |  | 54.8 |  |  | — |  |  | 54.8 |
Total available-for-sale investments (b) | 660.1 |  |  | 297.5 |  |  | — |  |  | 957.6 |
Forward foreign exchange contracts (c) | — |  |  | 0.9 |  |  | — |  |  | 0.9 |
Total financial assets carried at fair value | $ | 687.5 |  |  | $ | 346.8 |  |  | $ | — |  |  | $ | 1,034.3 |
Financial Liabilities Carried at Fair Value: |  |  |  |  |  |  |
Forward foreign exchange contracts (d) | $ | — |  |  | $ | 1.1 |  |  | $ | — |  |  | $ | 1.1 |
Contingent consideration (e) | — |  |  | — |  |  | 19.1 |  |  | 19.1 |
Total financial liabilities carried at fair value | $ | — |  |  | $ | 1.1 |  |  | $ | 19.1 |  |  | $ | 20.2 |
(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):
| June 30, 2016 |  | December 31, 2015
Short-term investments | $ | 372.9 |  |  | $ | 328.7 |
Other investments | 717.9 |  |  | 628.9 |
Total | $ | 1,090.8 |  |  | $ | 957.6 |
(c) | Forward foreign exchange contracts in an asset position are included in 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 Sheets (in millions):
| June 30, 2016 |  | December 31, 2015
Other current liabilities | $ | 13.7 |  |  | $ | 13.5 |
Other long-term liabilities | 29.3 |  |  | 5.6 |
Total | $ | 43.0 |  |  | $ | 19.1 |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] | The following table provides a reconciliation of the Level 3 cell sorting system and analytical flow cytometer platform contingent consideration liabilities measured at estimated fair value based on original valuations and updated quarterly for the six months ended June 30, 2016 (in millions):
| 2016
January 1 | $ | 9.1 |
Cell sorting system: |
Payment of sales milestone | (3.5 | )
Decrease in estimated fair value of contingent consideration included in Selling, general and administrative expense | (1.9 | )
Analytical flow cytometer platform: |
Acquisition of high performance analytical flow cytometer platform | 29.3 |
June 30 | $ | 33.0 |
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 cell sorting system and analytical flow cytometer platform contingent consideration liabilities as of June 30, 2016. 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
Cell sorting system | Probability-weighted income approach | Sales milestones: |  |
|  | Credit adjusted discount rates | 0.53% | N/A
|  | Projected volatility of growth rate | 17% | N/A
|  | Market price of risk | 1.40% | N/A
Analytical flow cytometer platform | Probability-weighted income approach | Sales milestones: |  |
|  | Market price of risk | 6 | % |
|  | Volatility | 10 | % |
Schedule of available-for-sale investments | Available-for-sale investments consist of the following (in millions):
| June 30, 2016
| Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Estimated Fair Value
Short-term investments: |  |  |  |  |  |  |
Corporate debt securities | $ | 174.2 |  |  | $ | 1.1 |  |  | $ | (0.1 | ) |  | $ | 175.2 |
Municipal obligations | 10.5 |  |  | 0.1 |  |  | — |  |  | 10.6 |
Asset-backed securities | 67.2 |  |  | 0.1 |  |  | (0.1 | ) |  | 67.2 |
U.S. government sponsored agencies | 78.4 |  |  | 1.0 |  |  | — |  |  | 79.4 |
Foreign government obligations | 6.7 |  |  | — |  |  | — |  |  | 6.7 |
Marketable equity securities | 31.7 |  |  | 2.6 |  |  | (0.5 | ) |  | 33.8 |
| 368.7 |  |  | 4.9 |  |  | (0.7 | ) |  | 372.9 |
Long-term investments: |  |  |  |  |  |  |
Marketable equity securities | 54.5 |  |  | 663.1 |  |  | — |  |  | 717.6 |
Asset-backed securities | 0.3 |  |  | — |  |  | — |  |  | 0.3 |
| 54.8 |  |  | 663.1 |  |  | — |  |  | 717.9 |
Total | $ | 423.5 |  |  | $ | 668.0 |  |  | $ | (0.7 | ) |  | $ | 1,090.8 |
| December 31, 2015
| Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Estimated Fair Value
Short-term investments: |  |  |  |  |  |  |
Corporate debt securities | $ | 157.2 |  |  | $ | 0.1 |  |  | $ | (0.4 | ) |  | $ | 156.9 |
Municipal obligations | 6.4 |  |  | — |  |  | — |  |  | 6.4 |
Asset-backed securities | 54.8 |  |  | — |  |  | (0.2 | ) |  | 54.6 |
U.S. government sponsored agencies | 74.9 |  |  | 0.1 |  |  | (0.2 | ) |  | 74.8 |
Foreign government obligations | 4.6 |  |  | — |  |  | — |  |  | 4.6 |
Marketable equity securities | 29.4 |  |  | 2.7 |  |  | (0.7 | ) |  | 31.4 |
| 327.3 |  |  | 2.9 |  |  | (1.5 | ) |  | 328.7 |
Long-term investments: |  |  |  |  |  |  |
Marketable equity securities | 54.5 |  |  | 574.2 |  |  | — |  |  | 628.7 |
Asset-backed securities | 0.3 |  |  | — |  |  | (0.1 | ) |  | 0.2 |
| 54.8 |  |  | 574.2 |  |  | (0.1 | ) |  | 628.9 |
Total | $ | 382.1 |  |  | $ | 577.1 |  |  | $ | (1.6 | ) |  | $ | 957.6 |
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):
| June 30, 2016 |  | December 31, 2015
Fair value of investments in a loss position 12 months or more | $ | 11.0 |  |  | $ | 10.4 |
Fair value of investments in a loss position less than 12 months | $ | 57.9 |  |  | $ | 204.0 |
Gross unrealized losses for investments in a loss position 12 months or more | $ | 0.3 |  |  | $ | 0.4 |
Gross unrealized losses for investments in a loss position less than 12 months | $ | 0.4 |  |  | $ | 1.2 |
Discussion of current derivative risk management | The following is a summary of our forward foreign exchange contracts (in millions):
| June 30,
| 2016
Contracts maturing in July through September 2016 to sell foreign currency: |
Notional value | $ | 18.6 |
Unrealized gain | $ | 0.1 |
Contracts maturing in July through September 2016 to purchase foreign currency: |
Notional value | $ | 323.5 |
Unrealized loss | $ | (1.0 | )
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 June 30, 2016 by contractual maturity date (in millions):
| Amortized Cost |  | Estimated Fair Value
Mature in less than one year | $ | 134.0 |  |  | $ | 134.2 |
Mature in one to five years | 147.8 |  |  | 148.5 |
Mature in more than five years | 55.5 |  |  | 56.7 |
Total | $ | 337.3 |  |  | $ | 339.4 |
Estimated fair value of financial instruments | The estimated fair value of the financial instruments discussed above and the level of the fair value hierarchy within which the fair value measurement is categorized are as follows (in millions):
| June 30, 2016 |  | December 31, 2015
| Carrying Amount |  | Estimated Fair Value |  | Fair Value Hierarchy Level |  | Carrying Amount |  | Estimated Fair Value |  | Fair Value Hierarchy Level
Other investments | $ | 88.3 |  |  | $ | 961.9 |  |  | 2 |  | $ | 86.5 |  |  | $ | 843.2 |  |  | 2
Total long-term debt, excluding leases and current maturities | $ | 422.2 |  |  | $ | 467.5 |  |  | 2 |  | $ | 421.9 |  |  | $ | 454.3 |  |  | 2

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- Definition Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64837297&loc=d3e41641-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64837297&loc=d3e41678-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=64837297&loc=d3e41638-113959 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579240-113959 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64837297&loc=d3e41620-113959 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(n)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + 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=66048111&loc=d3e19190-110258 + Details
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