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Accrued Expenses (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Payables and Accruals [Abstract]    
Legal costs $ 8,102 $ 24,797
Commissions to sales agents 1,809 2,141
Estimated returns 797 688
Accrued clinical trials 792 651
Accrued GPO fees 496 554
Accrued rebates 584 886
Other 1,112 743
Total $ 13,692 $ 30,460