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Fair Value Measurements (Tables) | 9 Months Ended
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Sep. 30, 2022
Fair Value Measurements |
Schedule of assets measured at fair value on a recurring basis | The Company’s assets measured at fair value on a recurring basis are summarized below (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value Measurements as of September 30, 2022
​ |  | Total |  | Level 1 |  | Level 2 |  | Level 3
Marketable Securities | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Bonds and bond funds | ​ | $ | 645,346 | ​ | $ | — | ​ | $ | 645,346 | ​ | $ | —
Commercial paper | ​ |  | 320,001 | ​ |  | — | ​ |  | 320,001 | ​ |  | —
​ | ​ | $ | 965,347 | ​ | $ | — | ​ | $ | 965,347 | ​ | $ | —
Investments in Other Companies | ​ | ​ | 26,112 | ​ | ​ | 9,240 | ​ | ​ | — | ​ | ​ | 16,872
Cash and Cash Equivalents | ​ | ​ | 38,850 | ​ | ​ | 38,850 | ​ | ​ | — | ​ | ​ | —
Total Assets Measured at Fair Value | ​ | $ | 1,030,309 | ​ | $ | 48,090 | ​ | $ | 965,347 | ​ | $ | 16,872
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value Measurements as of December 31, 2021
​ | ​ | Total | ​ | Level 1 | ​ | Level 2 | ​ | Level 3
Marketable Securities |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Bonds and bond funds | ​ | $ | 54,673 | ​ | $ | — | ​ | $ | 54,673 | ​ | $ | —
Commercial paper | ​ |  | 547,316 | ​ |  | — | ​ |  | 547,316 | ​ |  | —
​ | ​ | $ | 601,989 | ​ | $ | — | ​ | $ | 601,989 | ​ | $ | —
Cash and Cash Equivalents | ​ | ​ | 258,421 | ​ | ​ | 258,421 | ​ | ​ | — | ​ | ​ | —
Total Assets Measured at Fair Value | ​ | $ | 860,410 | ​ | $ | 258,421 | ​ | $ | 601,989 | ​ | $ | —
​

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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=123874694&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=123874694&loc=d3e19207-110258 + Details
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