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SEGMENT INFORMATION - Narrative (Details) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 USD ($) segment | Dec. 31, 2024 USD ($)
Concentration Risk And Geographic Information [Line Items] |  |  |
Number of operating segments | segment | 1 |  |
Accounts receivable, net | $ 790,266 | $ 660,535 | [1]
Sanofi |  |  |
Concentration Risk And Geographic Information [Line Items] |  |  |
Accounts receivable, net | $ 135,700 | $ 96,800 |
Credit Concentration Risk | Accounts Receivable | Customer One |  |  |
Concentration Risk And Geographic Information [Line Items] |  |  |
Concentration risk, percentage | 23.00% | 20.00% |
Credit Concentration Risk | Accounts Receivable | Customer Two |  |  |
Concentration Risk And Geographic Information [Line Items] |  |  |
Concentration risk, percentage |  | 11.00% |
[1] | (1)December 31, 2024 balances were derived from the audited Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, filed with the SEC on February 24, 2025.

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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 + Details
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