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PREPAID EXPENSES AND OTHER CURRENT ASSETS - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid external R&D costs	$ 11,498	$ 15,748
Prepaid external manufacturing costs	1,963	5,545
Prepaid sales tax	15	121
Prepaid insurance	1,016	651
Prepaid subscriptions	1,332	960
Interest and dividend receivable	2,073	1,714
Prepaid legal and consultants	1,792	31
Other	2,654	1,450
Total prepaid expenses and other current assets	$ 22,343	$ 26,220

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Amount of dividend and interest receivable from investment.

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-Topic 946
-SubTopic 830
-Name Accounting Standards Codification
-Section 55
-Paragraph 12
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-URI https://asc.fasb.org/1943274/2147479168/946-830-55-12

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

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