Quarterly report pursuant to Section 13 or 15(d)

Accounts Payable and Accrued Expenses (Details)

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Accounts Payable and Accrued Expenses (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Accounts Payable and Accrued Expenses    
Accounts Payable $ 44,731 $ 57,244
Accrued expenses:    
Professional fees 2,295 1,693
Salaries, bonus and related benefits 8,585 9,772
Research and development 7,446 7,390
Research and development - license maintenance fees 4,456 632
Research and development - milestones 0 4,600
Accrued royalties payable 1,794 2,627
Accrued coupon and rebates 6,099 7,604
Return reserve 4,523 3,689
Accrued interest 16 342
Other 1,461 1,853
Total accounts payable and accrued expenses $ 81,406 $ 97,446