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Investments and Fair Value Measurements - Components of Investments (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | --- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Cash and cash equivalents, Cost Basis | $ 99,193 | $ 149,351 | $ 130,761 | $ 148,132
Total Investments, Cost Basis | 139,857 | 159,009 |  |
Short-term investments and marketable securities, Unrealized Gains (Losses) | 134 | (5) |  |
Short-term investments and marketable securities, Fair Value | 40,798 | 9,653 |  |
Total investments, Fair Value | 139,991 | 159,004 |  |
U.S. Treasury bonds |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Short-term investments and marketable securities, Fair Value | 23,935 | 4,828 |  |
U.S. Treasury bonds | Level 1 |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Short-term investments and marketable securities, Cost Basis | 23,871 | 4,830 |  |
Short-term investments and marketable securities, Unrealized Gains (Losses) | 64 | (2) |  |
Short-term investments and marketable securities, Fair Value | 23,935 | 4,828 |  |
Commercial paper |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Short-term investments and marketable securities, Fair Value | 2,902 |  |  |
Commercial paper | Level 2 |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Short-term investments and marketable securities, Cost Basis | 2,893 |  |  |
Short-term investments and marketable securities, Unrealized Gains (Losses) | 9 |  |  |
Short-term investments and marketable securities, Fair Value | 2,902 |  |  |
Corporate bonds |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Short-term investments and marketable securities, Fair Value | 13,961 |  |  |
Corporate bonds | Level 2 |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Short-term investments and marketable securities, Cost Basis | 13,900 |  |  |
Short-term investments and marketable securities, Unrealized Gains (Losses) | 61 |  |  |
Short-term investments and marketable securities, Fair Value | 13,961 |  |  |
Agency bonds |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Short-term investments and marketable securities, Fair Value |  | 4,825 |  |
Agency bonds | Level 2 |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Short-term investments and marketable securities, Cost Basis |  | 4,828 |  |
Short-term investments and marketable securities, Unrealized Gains (Losses) |  | (3) |  |
Short-term investments and marketable securities, Fair Value |  | 4,825 |  |
Cash |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Cash and cash equivalents, Cost Basis | 52,421 | 93,029 |  |
Cash | Level 1 |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Cash and cash equivalents, Cost Basis | 52,421 | 93,029 |  |
Cash and cash equivalents, Fair Value | 52,421 | 93,029 |  |
Money market fund |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Cash and cash equivalents, Cost Basis | 46,772 | 56,322 |  |
Money market fund | Level 1 |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Cash and cash equivalents, Cost Basis | 46,772 | 56,322 |  |
Cash and cash equivalents, Fair Value | $ 46,772 | $ 56,322 |  |

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483467/210-10-45-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-4 + Details
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