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2. Fair Value Measurements (Tables) | 3 Months Ended
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Mar. 31, 2018
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 March 31, 2018 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 | $ | — |  |  | $ | 53.9 |  |  | $ | — |  |  | $ | 53.9 |
Time deposits | 36.2 |  |  | 10.0 |  |  | — |  |  | 46.2 |
Money market funds | 6.0 |  |  | — |  |  | — |  |  | 6.0 |
Asset-backed securities | — |  |  | 0.3 |  |  | — |  |  | 0.3 |
U.S. government sponsored agencies | — |  |  | 4.2 |  |  | — |  |  | 4.2 |
Municipal obligations | — |  |  | 0.2 |  |  | — |  |  | 0.2 |
Total cash equivalents (a) | 42.2 |  |  | 68.6 |  |  | — |  |  | 110.8 |
Restricted investment | 5.6 |  |  | — |  |  | — |  |  | 5.6 |
Equity securities (b) | 3,005.0 |  |  | — |  |  | — |  |  | 3,005.0 |
Available-for-sale investments: |  |  |  |  |  |  |
Corporate debt securities | — |  |  | 172.9 |  |  | — |  |  | 172.9 |
U.S. government sponsored agencies | — |  |  | 65.2 |  |  | — |  |  | 65.2 |
Foreign government obligations | — |  |  | 3.8 |  |  | — |  |  | 3.8 |
Municipal obligations | — |  |  | 15.2 |  |  | — |  |  | 15.2 |
Asset-backed securities | — |  |  | 55.2 |  |  | — |  |  | 55.2 |
Total available-for-sale investments (c) | — |  |  | 312.3 |  |  | — |  |  | 312.3 |
Forward foreign exchange contracts (d) | — |  |  | 1.3 |  |  | — |  |  | 1.3 |
Total financial assets carried at fair value | $ | 3,052.8 |  |  | $ | 382.2 |  |  | $ | — |  |  | $ | 3,435.0 |
Financial Liabilities Carried at Fair Value: |  |  |  |  |  |  |
Forward foreign exchange contracts (e) | $ | — |  |  | $ | 1.0 |  |  | $ | — |  |  | $ | 1.0 |
Contingent consideration (f) | — |  |  | — |  |  | 13.3 |  |  | 13.3 |
Total financial liabilities carried at fair value | $ | — |  |  | $ | 1.0 |  |  | $ | 13.3 |  |  | $ | 14.3 |
As of first quarter 2018, our equity securities are no longer reported as Available-for-sale investments due to the implementation of ASU 2016-01. Changes in fair value of equity securities are now reported on the Condensed Consolidated Statements of Income rather than Other Comprehensive Income (see Note 1). Financial assets and liabilities carried at fair value and measured on a recurring basis as of December 31, 2017 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 | $ | — |  |  | $ | 36.0 |  |  | $ | — |  |  | $ | 36.0 |
Time deposits | 43.7 |  |  | 10.0 |  |  | — |  |  | 53.7 |
U.S. government sponsored agencies | — |  |  | 11.2 |  |  | — |  |  | 11.2 |
Money market funds | 3.4 |  |  | — |  |  | — |  |  | 3.4 |
Total cash equivalents (a) | 47.1 |  |  | 57.2 |  |  | — |  |  | 104.3 |
Restricted investment | 5.6 |  |  | — |  |  | — |  |  | 5.6 |
Available-for-sale investments: |  |  |  |  |  |  |
Corporate debt securities | — |  |  | 185.7 |  |  | — |  |  | 185.7 |
U.S. government sponsored agencies | — |  |  | 67.6 |  |  | — |  |  | 67.6 |
Foreign government obligations | — |  |  | 3.4 |  |  | — |  |  | 3.4 |
Brokered certificates of deposit | — |  |  | 0.7 |  |  | — |  |  | 0.7 |
Municipal obligations | — |  |  | 15.0 |  |  | — |  |  | 15.0 |
Marketable equity securities | 973.4 |  |  | — |  |  | — |  |  | 973.4 |
Asset-backed securities | — |  |  | 55.6 |  |  | — |  |  | 55.6 |
Total available-for-sale investments (c) | 973.4 |  |  | 328.0 |  |  | — |  |  | 1,301.4 |
Forward foreign exchange contracts (d) | — |  |  | 0.5 |  |  | — |  |  | 0.5 |
Total financial assets carried at fair value | $ | 1,026.1 |  |  | $ | 385.7 |  |  | $ | — |  |  | $ | 1,411.8 |
Financial Liabilities Carried at Fair Value: |  |  |  |  |  |  |
Forward foreign exchange contracts (e) | $ | — |  |  | $ | 1.6 |  |  | $ | — |  |  | $ | 1.6 |
Contingent consideration (f) | — |  |  | — |  |  | 16.7 |  |  | 16.7 |
Total financial liabilities carried at fair value | $ | — |  |  | $ | 1.6 |  |  | $ | 16.7 |  |  | $ | 18.3 |
(a) | Cash equivalents are included in Cash and cash equivalents in the Condensed Consolidated Balance Sheets.
(b) | Equity securities are included in the following accounts in the Condensed Consolidated Balance Sheets (in millions):
| March 31, 2018
Short-term investments | $ | 43.5 |
Other investments | 2,961.5 |
Total | $ | 3,005.0 |
The unrealized gains on our equity securities still held as of March 31, 2018 are $815.9 million and are primarily due to our investment in Sartorius AG and is recorded in our Condensed Consolidated Statements of Income due to the adoption of ASU 2016-01 (see Note 1). (c)Available-for-sale investments are included in the following accounts in the Condensed Consolidated Balance Sheets (in millions):
| March 31, 2018 |  | December 31, 2017
Short-term investments | $ | 312.1 |  |  | $ | 371.2 |
Other investments | 0.2 |  |  | 930.2 |
Total | $ | 312.3 |  |  | $ | 1,301.4 |
In accordance with our adoption of ASU 2016-01 January 1, 2018, our investment in Sartorius AG preferred shares, which was reported as Available-for-sale as of December 31, 2017, is now reported as an Equity security as of March 31, 2018 (see Note 1 and footnote (b) above). (d) Forward foreign exchange contracts in an asset position are included in Other current assets in the Condensed Consolidated Balance Sheets. (e) Forward foreign exchange contracts in a liability position are included in Other current liabilities in the Condensed Consolidated Balance Sheets. (f) Contingent consideration liability is included in the following accounts in the Condensed Consolidated Balance Sheets (in millions):
| March 31, 2018 |  | December 31, 2017
Other current liabilities | $ | 3.2 |  |  | $ | 2.7 |
Other long-term liabilities | 10.1 |  |  | 14.0 |
Total | $ | 13.3 |  |  | $ | 16.7 |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] | The following table provides a reconciliation of the Level 3 analytical flow cytometer platform contingent consideration liabilities measured at estimated fair value (in millions):
January 1, 2018 | $ | 16.7 |
Analytical flow cytometer platform: |
Payment of sales milestone | (1.3 | )
Decrease in estimated fair value of contingent consideration included in Selling, general and administrative expense | (2.1 | )
March 31, 2018 | $ | 13.3 |
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 analytical flow cytometer platform contingent consideration liability as of March 31, 2018. Significant increases or decreases in these inputs in isolation could result in a significantly lower or higher fair value measurement.
| Valuation Technique | Unobservable Input |
Analytical flow cytometer platform | Probability-weighted income approach | Sales milestones: |
|  | Discount rate | 10.8 | %
|  | Cost of debt | 4.6 | %
Schedule of available-for-sale investments | Available-for-sale investments consist of the following (in millions):
| March 31, 2018
| Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Estimated Fair Value
Short-term investments: |  |  |  |  |  |  |
Corporate debt securities | $ | 174.1 |  |  | $ | 0.1 |  |  | $ | (1.3 | ) |  | $ | 172.9 |
Municipal obligations | 15.3 |  |  | — |  |  | (0.1 | ) |  | 15.2 |
Asset-backed securities | 55.4 |  |  | — |  |  | (0.4 | ) |  | 55.0 |
U.S. government sponsored agencies | 66.3 |  |  | — |  |  | (1.1 | ) |  | 65.2 |
Foreign government obligations | 3.8 |  |  | — |  |  | — |  |  | 3.8 |
| 314.9 |  |  | 0.1 |  |  | (2.9 | ) |  | 312.1 |
Long-term investments: |  |  |  |  |  |  |
Asset-backed securities | 0.2 |  |  | — |  |  | — |  |  | 0.2 |
| 0.2 |  |  | — |  |  | — |  |  | 0.2 |
Total | $ | 315.1 |  |  | $ | 0.1 |  |  | $ | (2.9 | ) |  | $ | 312.3 |
The following is a summary of the amortized cost and estimated fair value of our debt securities at March 31, 2018 by contractual maturity date (in millions):
| Amortized Cost |  | Estimated Fair Value
Mature in less than one year | $ | 123.1 |  |  | $ | 122.9 |
Mature in one to five years | 149.0 |  |  | 147.4 |
Mature in more than five years | 43.0 |  |  | 42.0 |
Total | $ | 315.1 |  |  | $ | 312.3 |
Available-for-sale investments consist of the following (in millions):
| December 31, 2017
| Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Estimated Fair Value
Short-term investments: |  |  |  |  |  |  |
Corporate debt securities | $ | 185.9 |  |  | $ | 0.3 |  |  | $ | (0.5 | ) |  | $ | 185.7 |
Brokered certificates of deposit | 0.7 |  |  | — |  |  | — |  |  | 0.7 |
Municipal obligations | 15.1 |  |  | — |  |  | (0.1 | ) |  | 15.0 |
Asset-backed securities | 55.6 |  |  | — |  |  | (0.2 | ) |  | 55.4 |
U.S. government sponsored agencies | 68.3 |  |  | — |  |  | (0.7 | ) |  | 67.6 |
Foreign government obligations | 3.4 |  |  | — |  |  | — |  |  | 3.4 |
Marketable equity securities | 34.4 |  |  | 9.0 |  |  | — |  |  | 43.4 |
| 363.4 |  |  | 9.3 |  |  | (1.5 | ) |  | 371.2 |
Long-term investments: |  |  |  |  |  |  |
Marketable equity securities | 54.5 |  |  | 875.5 |  |  | — |  |  | 930.0 |
Asset-backed securities | 0.2 |  |  | — |  |  | — |  |  | 0.2 |
| 54.7 |  |  | 875.5 |  |  | — |  |  | 930.2 |
Total | $ | 418.1 |  |  | $ | 884.8 |  |  | $ | (1.5 | ) |  | $ | 1,301.4 |
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, 2018 |  | December 31, 2017
Fair value of investments in a loss position 12 months or more | $ | 42.6 |  |  | $ | 43.9 |
Fair value of investments in a loss position less than 12 months | $ | 193.7 |  |  | $ | 168.7 |
Gross unrealized losses for investments in a loss position 12 months or more | $ | 0.9 |  |  | $ | 0.7 |
Gross unrealized losses for investments in a loss position less than 12 months | $ | 2.1 |  |  | $ | 0.8 |
Discussion of current derivative risk management | The following is a summary of our forward foreign exchange contracts (in millions):
| March 31,
| 2018
Contracts maturing in April through June 2018 to sell foreign currency: |
Notional value | $ | 37.5 |
Unrealized loss | $ | — |
Contracts maturing in April through June 2018 to purchase foreign currency: |
Notional value | $ | 355.3 |
Unrealized gain | $ | 0.1 |
Summary of amortized cost and estimated fair value of debt securities by contractual maturity date |
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):
| March 31, 2018 |  | December 31, 2017
| Carrying Amount |  | Estimated Fair Value |  | Fair Value Hierarchy Level |  | Carrying Amount |  | Estimated Fair Value |  | Fair Value Hierarchy Level
Other investments | — |  |  | — |  |  |  |  | $ | 91.8 |  |  | $ | 1,249.4 |  |  | 2
Total long-term debt, excluding leases and current maturities | $ | 434.7 |  |  | $ | 439.9 |  |  | 2 |  | $ | 423.1 |  |  | $ | 449.8 |  |  | 2

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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=66048111&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 3 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19279-110258 Reference 2: 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=66048111&loc=d3e19207-110258 + Details
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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=84234895&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=84234895&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=84234895&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=84234895&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=84234895&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=84234895&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=84234895&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=84234895&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=84234895&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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