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ORGANIZATION, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Percentage of Accounts Receivable by Collaboration Partners (Details) - Accounts Receivable - Accounts Receivable from Collaboration Agreements	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Sigma-Aldrich Corporation
Concentration Risk [Line Items]
Percentage of accounts receivable	70.00%	78.00%
Ligand Pharmaceuticals Inc.
Concentration Risk [Line Items]
Percentage of accounts receivable	20.00%	5.00%
Kite Pharma, Inc.
Concentration Risk [Line Items]
Percentage of accounts receivable	0.00%	18.00%

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