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Fair Value Measurements (Tables) | 6 Months Ended
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Jun. 30, 2022
Fair Value Measurements |
Schedule of financial assets and liabilities subject to fair value measurements | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | June 30, 2022 |  | Level 1 |  | Level 2 |  | Level 3
​ | ​ | (In thousands)
Assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Money market funds and cash equivalents | ​ | $ | 7,114 | ​ | ​ | — | ​ | $ | 7,114 | ​ | ​ | —
Marketable securities | ​ | ​ | 328,416 | ​ | ​ | — | ​ | ​ | 328,416 | ​ | ​ | —
​ | ​ | $ | 335,530 | ​ | ​ | — | ​ | $ | 335,530 | ​ | ​ | —
Liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Kolltan acquisition contingent consideration | ​ | $ | — | ​ | ​ | — | ​ | ​ | — | ​ | $ | —
​ | ​ | $ | — | ​ | ​ | — | ​ | ​ | — | ​ | $ | —
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, 2021 |  | Level 1 |  | Level 2 |  | Level 3
​ | ​ | (In thousands)
Assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Money market funds and cash equivalents | ​ | $ | 26,220 | ​ | ​ | — | ​ | $ | 26,220 | ​ | ​ | —
Marketable securities | ​ | ​ | 369,107 | ​ | ​ | — | ​ | ​ | 369,107 | ​ | ​ | —
​ | ​ | $ | 395,327 | ​ | ​ | — | ​ | $ | 395,327 | ​ | ​ | —
Liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Kolltan acquisition contingent consideration | ​ | $ | 6,862 | ​ | ​ | — | ​ | ​ | — | ​ | $ | 6,862
​ | ​ | $ | 6,862 | ​ | ​ | — | ​ | ​ | — | ​ | $ | 6,862
Schedule of the contingent consideration liabilities measured at fair value using Level 3 inputs | The following table reflects the activity for the Company’s contingent consideration liabilities measured at fair value using Level 3 inputs for the six months ended June 30, 2022 (in thousands): ​
​ | ​ | ​ | ​
​ | ​ | Other Liabilities:
​ | ​ | Contingent
​ |  | Consideration
Balance at December 31, 2021 | ​ | $ | 6,862
Fair value adjustments included in operating expenses | ​ |  | (6,862)
Balance at June 30, 2022 | ​ | $ | —

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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 https://asc.fasb.org/extlink&oid=126976982&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 https://asc.fasb.org/extlink&oid=126976982&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 https://asc.fasb.org/extlink&oid=126976982&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 https://asc.fasb.org/extlink&oid=126976982&loc=d3e19279-110258 + Details
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