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Fair Value Measurements (Tables) | 9 Months Ended
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Sep. 30, 2020
Fair Value Disclosures [Abstract] |
Summary of Fair Value Assets Measured on Recurring Basis for Cash, Cash Equivalents and Marketable Securities | The following table summarizes fair value measurements by level for the assets measured at fair value on a recurring basis for cash, cash equivalents and marketable securities:
|  | As of September 30, 2020 |
|  |  |  |  |  | Gross |  |  |  |  |  |  | Cash |  |  |  |  |
|  | Adjusted |  |  | unrealized |  |  |  |  |  |  | and cash |  |  | Marketable |
|  | cost |  |  | gains |  |  | Fair value |  |  | equivalents |  |  | securities |
Cash |  | $ | 46,137 |  |  | $ | — |  |  | $ | 46,137 |  |  | $ | 46,137 |  |  | $ | — |
Level 1: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market accounts |  |  | 167,847 |  |  |  | — |  |  |  | 167,847 |  |  |  | 167,847 |  |  |  | — |
Level 2: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds |  |  | 6,524 |  |  |  | 1 |  |  |  | 6,525 |  |  |  | — |  |  |  | 6,525 |
Total |  | $ | 220,508 |  |  | $ | 1 |  |  | $ | 220,509 |  |  | $ | 213,984 |  |  | $ | 6,525 |
|  | As of December 31, 2019 |
|  |  |  |  |  | Gross |  |  |  |  |  |  | Cash |  |  |  |  |
|  | Adjusted |  |  | unrealized |  |  |  |  |  |  | and cash |  |  | Marketable |
|  | cost |  |  | gains |  |  | Fair value |  |  | equivalents |  |  | securities |
Cash |  | $ | 51,560 |  |  | $ | — |  |  | $ | 51,560 |  |  | $ | 51,560 |  |  | $ | — |
Level 1: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market accounts |  |  | 146,477 |  |  |  | — |  |  |  | 146,477 |  |  |  | 146,477 |  |  |  | — |
Level 2: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds |  |  | 2,011 |  |  |  | 2 |  |  |  | 2,013 |  |  |  | — |  |  |  | 2,013 |
U.S. Treasury securities |  |  | 9,038 |  |  |  | 6 |  |  |  | 9,044 |  |  |  | — |  |  |  | 9,044 |
Total |  | $ | 209,086 |  |  | $ | 8 |  |  | $ | 209,094 |  |  | $ | 198,037 |  |  | $ | 11,057 |
Summary of Components of Accumulated Other Comprehensive Income (Loss) | The components of accumulated other comprehensive income (loss) were as follows:
|  | Foreign |  |  | Unrealized |  |  | Unrealized |  |  | Accumulated |
|  | currency |  |  | gains (losses) |  |  | gains (losses) |  |  | other |
|  | translation |  |  | on marketable |  |  | on cash |  |  | comprehensive |
|  | adjustments |  |  | securities |  |  | flow hedges |  |  | income (loss) |
Balance as of December 31, 2019 |  | $ | 271 |  |  | $ | 6 |  |  | $ | (364 | ) |  | $ | (87 | )
Other comprehensive income (loss) |  |  | 405 |  |  |  | (6 | ) |  |  | 95 |  |  |  | 494 |
Balance as of September 30, 2020 |  | $ | 676 |  |  | $ | — |  |  | $ | (269 | ) |  | $ | 407 |
Summary of Quantitative Information about Level 3 Inputs for Fair Value Measurement of Earnout Liability | The following table provides quantitative information about Level 3 inputs for fair value measurement of the earnout liability as of September 30, 2020 and December 31, 2019. Significant increases or decreases in these inputs in isolation could result in a significant impact on our fair value measurement:
|  | As of |  |  | As of |
Simulation input |  | September 30, 2020 |  |  | December 31, 2019 |
Revenue volatility |  |  | 35.00 | % |  |  | 35.00 | %
WACC |  |  | 12.00 | % |  |  | 13.00 | %
20-year risk free rate |  |  | 1.23 | % |  |  | 2.25 | %
Market price of risk |  |  | 8.00 | % |  |  | 10.00 | %
Summary of Reconciliation of Earnout Liability Measured and Carried Fair Value on a Recurring Basis | The reconciliation of the earnout liability measured and carried at fair value on a recurring basis is as follows:
|  | Three months ended |  |  | Nine months ended |
|  | September 30, |  |  | September 30, |
|  | 2020 |  |  | 2020 |
Balance at beginning of period |  | $ | 26,539 |  |  | $ | 26,559 |
Change in fair value |  |  | (146 | ) |  |  | (166 | )
Balance at end of period |  | $ | 26,393 |  |  | $ | 26,393 |

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258 + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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