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FAIR VALUE MEASUREMENTS (Tables) | 9 Months Ended
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Sep. 30, 2025
Fair Value Disclosures [Abstract] |
Schedule of Cash Equivalents, Restricted Cash and Marketable Securities by Security Type | Cash equivalents, restricted cash and marketable securities by security type at September 30, 2025 were as follows:
(In thousands) |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Included in cash and cash equivalents: |  |  |  |  |  |  |  |
Money market funds |  | $ | 30,264 |  |  | $ | — |  |  | $ | — |  |  | $ | 30,264 |
Commercial paper |  | 4,964 |  |  | — |  |  | — |  |  | 4,964 |
|  | $ | 35,228 |  |  | $ | — |  |  | $ | — |  |  | $ | 35,228 |
Restricted cash: |  |  |  |  |  |  |  |
Money market fund |  | $ | 1,602 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,602 |
Certificate of deposit |  | 274 |  |  | — |  |  | — |  |  | 274 |
|  | $ | 1,876 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,876 |
Marketable securities: |  |  |  |  |  |  |  |
U.S. Treasury securities (due in less than one year) |  | $ | 22,836 |  |  | $ | 45 |  |  | $ | — |  |  | $ | 22,881 |
U.S. Treasury securities (due in 1-2 years) |  | — |  |  | — |  |  | — |  |  | — |
Municipal securities (due in 1 to 2 years) |  | 5,041 |  |  | 13 |  |  | — |  |  | 5,054 |
Government-sponsored enterprise securities (due in 1-2 years) |  | 5,000 |  |  | — |  |  | — |  |  | 5,000 |
Commercial paper (due in less than one year) |  | 118,244 |  |  | 34 |  |  | (4) |  |  | 118,274 |
Corporate notes (due in less than one year) |  | 161,050 |  |  | 218 |  |  | (8) |  |  | 161,260 |
Corporate notes (due in one to two years) |  | 28,945 |  |  | 80 |  |  | (16) |  |  | 29,009 |
|  | $ | 341,116 |  |  | $ | 390 |  |  | $ | (28) |  |  | $ | 341,478 |
Cash equivalents, restricted cash and marketable securities by security type at December 31, 2024 were as follows:
(In thousands) |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Included in cash and cash equivalents: |  |  |  |  |  |  |  |
Money market funds |  | $ | 45,215 |  |  | $ | — |  |  | $ | — |  |  | $ | 45,215 |
Commercial paper |  | 4,978 |  |  | — |  |  | (1) |  |  | 4,977 |
|  | $ | 50,193 |  |  | $ | — |  |  | $ | (1) |  |  | $ | 50,192 |
Restricted cash: |  |  |  |  |  |  |  |
Money market fund |  | $ | 1,587 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,587 |
Certificate of deposit |  | 273 |  |  | — |  |  | — |  |  | 273 |
|  | $ | 1,860 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,860 |
Marketable securities: |  |  |  |  |  |  |  |
U.S. Treasury securities (due in less than one year) |  | $ | 7,937 |  |  | $ | 22 |  |  | $ | — |  |  | $ | 7,959 |
U.S. Treasury securities (due in one to two years) |  | 22,620 |  |  | 1 |  |  | (11) |  |  | 22,610 |
Government-sponsored enterprise securities (due in less than one year) |  | 8,741 |  |  | 7 |  |  | — |  |  | 8,748 |
Commercial paper (due in less than one year) |  | 180,131 |  |  | 150 |  |  | (56) |  |  | 180,225 |
Corporate notes (due in less than one year) |  | 130,361 |  |  | 284 |  |  | (27) |  |  | 130,618 |
Corporate notes (due in one to two years) |  | 72,000 |  |  | 6 |  |  | (97) |  |  | 71,909 |
|  | $ | 421,790 |  |  | $ | 470 |  |  | $ | (191) |  |  | $ | 422,069 |
Schedule of Cash Equivalents and Marketable Securities with Unrealized Losses | Cash equivalents and marketable securities with unrealized losses that have been in a continuous unrealized loss position for less than 12 months and 12 months or longer at September 30, 2025 and December 31, 2024 were as follows:
|  | Less Than 12 Months |  | 12 Months or Longer |  | Total
(In thousands) |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses
As of September 30, 2025: |  |  |  |  |  |  |  |  |  |  |  |
Commercial paper (due in less than one year) |  | 27,555 |  |  | (5) |  |  | — |  |  | — |  |  | 27,555 |  |  | (5) |
Corporate notes (due in less than one year) |  | 10,887 |  |  | (7) |  |  | 1,980 |  |  | (2) |  |  | 12,867 |  |  | (9) |
Corporate notes (due in one to two years) |  | 9,893 |  |  | (17) |  |  | — |  |  | — |  |  | 9,893 |  |  | (17) |
|  | $ | 48,335 |  |  | $ | (29) |  |  | $ | 1,980 |  |  | $ | (2) |  |  | $ | 50,315 |  |  | $ | (31) |
As of December 31, 2024: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities (due in less than one year) |  | $ | 18,593 |  |  | $ | (10) |  |  | $ | — |  |  | $ | — |  |  | $ | 18,593 |  |  | $ | (10) |
Commercial paper (due in less than one year) |  | 66,076 |  |  | (56) |  |  | — |  |  | — |  |  | 66,076 |  |  | (56) |
Corporate notes (due in less than one year) |  | 31,549 |  |  | (26) |  |  | 1,993 |  |  | (1) |  |  | 33,542 |  |  | (27) |
Corporate notes (due in one to two years) |  | 53,506 |  |  | (98) |  |  | — |  |  | — |  |  | 53,506 |  |  | (98) |
|  | $ | 169,724 |  |  | $ | (190) |  |  | $ | 1,993 |  |  | $ | (1) |  |  | $ | 171,717 |  |  | $ | (191) |
Schedule of Financial Instruments Measured at Fair Value on Recurring Basis | The following table presents information about our financial instruments that are measured at fair value on a recurring basis as of September 30, 2025 and December 31, 2024 and indicates the fair value category assigned.
|  | Fair Value Measurements at Reporting Date Using
|  | Quoted Prices in Active Markets for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |  |
(In thousands) |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
As of September 30, 2025: |  |  |  |  |  |  |  |
Money market funds(1)(2) |  | $ | 31,867 |  |  | $ | — |  |  | $ | — |  |  | $ | 31,867 |
Certificate of deposit(2) |  | 274 |  |  | — |  |  | — |  |  | 274 |
Municipal securities(4) |  | — |  |  | 5,054 |  |  | — |  |  | 5,054 |
U.S. Treasury securities(3) |  | — |  |  | 22,881 |  |  | — |  |  | 22,881 |
Government-sponsored enterprise securities(4) |  | — |  |  | 5,000 |  |  | — |  |  | 5,000 |
Commercial paper(1) (3) |  | — |  |  | 123,238 |  |  | — |  |  | 123,238 |
Corporate notes(3)(4) |  | — |  |  | 190,268 |  |  | — |  |  | 190,268 |
Total |  | $ | 32,140 |  |  | $ | 346,441 |  |  | $ | — |  |  | $ | 378,581 |
As of December 31, 2024: |  |  |  |  |  |  |  |
Money market funds(1)(2) |  | $ | 46,802 |  |  | $ | — |  |  | $ | — |  |  | $ | 46,802 |
Certificate of deposit(2) |  | 273 |  |  | — |  |  | — |  |  | 273 |
U.S. Treasury securities(3)(4) |  | — |  |  | 30,570 |  |  | — |  |  | 30,570 |
Government-sponsored enterprise securities(3) |  | — |  |  | 8,748 |  |  | — |  |  | 8,748 |
Commercial paper(3) |  | — |  |  | 185,201 |  |  | — |  |  | 185,201 |
Corporate notes(3)(4) |  | — |  |  | 202,527 |  |  | — |  |  | 202,527 |
Total |  | $ | 47,075 |  |  | $ | 427,046 |  |  | $ | — |  |  | $ | 474,121 |
_______________________________ (1)Included in cash and cash equivalents on our condensed consolidated balance sheets. (2)Included in restricted cash on our condensed consolidated balance sheets. (3)Included in current portion of marketable securities on our condensed consolidated balance sheets. (4)Included in noncurrent portion of marketable securities on our condensed consolidated balance sheets.

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- Definition Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479081/326-30-55-8 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-6 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-4 + Details
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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/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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