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Fair Value Measurement (Tables) | 9 Months Ended
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Sep. 30, 2018
Fair Value Disclosures [Abstract] |
Schedule of Fair Value, Assets and Liabilities |
| Balance at January 1, |  | Payments |  | Acquisitions |  | Change in estimate |  | Balance at September 30,
2018 |  |  |  |  |  |  |  |  |
Liabilities: |  |  |  |  |  |  |  |  |
Contingent consideration | $ | 10,000 |  |  | (7,000 | ) |  | — |  |  | — |  |  | $ | 3,000 |
| Balance at January 1, |  | Payments |  | Acquisitions |  | Change in estimate |  | Balance at December 31,
2017 |  |  |  |  |  |  |  |  |
Liabilities: |  |  |  |  |  |  |  |  |
Contingent consideration | $ | 7,948 |  |  | (7,359 | ) |  | 20,617 |  |  | (11,206 | ) |  | $ | 10,000 |
The Company’s financial assets and liabilities subject to fair value measurements as of September 30, 2018 and December 31, 2017 are as follows:
|  |  |  | September 30, 2018
|  |  |  | Fair Value Measurements
|  | Fair value |  | Level 1 |  | Level 2 |  | Level 3
Assets: |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 89,782 |  |  | $ | 89,782 |  |  | $ | — |  |  | $ | — |
Current marketable securities – available for sale |  | 57,896 |  |  | 57,896 |  |  | — |  |  | — |
Forward contracts |  | 262 |  |  | — |  |  | 262 |  |  | — |
Total assets |  | $ | 147,940 |  |  | $ | 147,678 |  |  | $ | 262 |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |
Contingent consideration |  | $ | 3,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,000 |
Total liabilities |  | $ | 3,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,000 |
|  |  |  | December 31, 2017
|  |  |  | Fair Value Measurements
|  | Fair value |  | Level 1 |  | Level 2 |  | Level 3
Assets: |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 58,436 |  |  | $ | 58,436 |  |  | $ | — |  |  | $ | — |
Current marketable securities – available for sale |  | 64,027 |  |  | 64,027 |  |  | — |  |  | — |
Long-term marketable securities – available for sale |  | 29,523 |  |  | 29,523 |  |  | — |  |  | — |
Total assets |  | $ | 151,986 |  |  | $ | 151,986 |  |  | $ | — |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |
Contingent consideration |  | $ | 10,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 10,000 |
Forward contracts |  | 783 |  |  | — |  |  | 783 |  |  | — |
Total liabilities |  | $ | 10,783 |  |  | $ | — |  |  | $ | 783 |  |  | $ | 10,000 |

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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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