ACCOUNTS RECEIVABLES, NET - Schedule of Accounts Receivables, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
ACCOUNTS RECEIVABLES, NET
Total accounts receivable, net	$ 36,145	$ 44,350
Receivables from Collegium
ACCOUNTS RECEIVABLES, NET
Total accounts receivable, net	0	3,566
Receivables related to product sales, net
ACCOUNTS RECEIVABLES, NET
Total accounts receivable, net	$ 36,145	$ 40,784

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Publisher FASB
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