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Debt (Details)
$ in Thousands
3 Months Ended
Apr. 17, 2023
USD ($)
Dec. 07, 2020
USD ($)
Mar. 31, 2024
USD ($)
Mar. 31, 2023
USD ($)
Jul. 29, 2022
USD ($)
Pharmakon Advisors, LP          
Debt Instrument [Line Items]          
Debt instrument capitalized interest rate 0.50        
Pharmakon Advisors, LP | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate          
Debt Instrument [Line Items]          
Debt Instrument, SOFR floor 0.0175        
Debt instrument, basis spread on variable rate 7.00%        
Pharmakon Advisors, LP | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | PIK Interest Payment is Made          
Debt Instrument [Line Items]          
Debt instrument, basis spread on variable rate 7.25%        
Pharmakon Advisors, LP | Line of Credit          
Debt Instrument [Line Items]          
Debt instrument, periodic payment     $ 25,000    
Debt instrument, prepayment fee, percentage of principal voluntary payments     3.00%    
Pharmakon Advisors, LP | Line of Credit | Between the Second and Third Anniversaries          
Debt Instrument [Line Items]          
Debt instrument, prepayment fee, percentage of principal voluntary payments     3.00%    
Pharmakon Advisors, LP | Line of Credit | After Fourth Anniversary          
Debt Instrument [Line Items]          
Debt instrument, prepayment fee, percentage of principal voluntary payments     1.00%    
Pharmakon Advisors, LP | Line of Credit | After Third Anniversary          
Debt Instrument [Line Items]          
Debt instrument, prepayment fee, percentage of principal voluntary payments     2.00%    
Athyrium | Senior Credit Facility          
Debt Instrument [Line Items]          
Repayments of lines of credit $ 241,787        
MidCap Financial Services, LLC | Senior Credit Facility          
Debt Instrument [Line Items]          
Repayments of lines of credit   $ 43,298      
Term Loan Tranche A | Pharmakon Advisors, LP | Line of Credit          
Debt Instrument [Line Items]          
Debt instrument, face amount $ 300,000        
Proceeds from Issuance of Long-Term Debt     $ 300,000    
Debt instrument, term 18 months        
Effective interest rate     13.34%    
Interest expense, debt, total     $ 9,974    
Periodic payment, interest     4,987    
Fair value     318,650    
Debt instrument, unamortized discount (premium) and debt issuance costs, net, total     11,147    
Amortization of debt issuance costs     $ 266    
Term Loan Tranche A | Pharmakon Advisors, LP | Line of Credit | PIK Interest Payment is Made          
Debt Instrument [Line Items]          
Percent of interest payment 0.50        
Loan Agreement | Pharmakon Advisors, LP          
Debt Instrument [Line Items]          
Debt instrument, face amount $ 450,000        
Proceeds from Issuance of Long-Term Debt $ 25,805        
Credit Agreement | Athyrium          
Debt Instrument [Line Items]          
Debt instrument, face amount   $ 200,000      
Debt instrument, term 17 days        
Debt instrument, LIBOR floor   1.75%      
Debt instrument, LIBOR cap   3.50%      
Paid-in-kind interest       $ 7,142  
Long-term debt, total $ 240,452        
Interest expense 1,335        
Credit Agreement | Athyrium | London Interbank Offered Rate (LIBOR)          
Debt Instrument [Line Items]          
Debt instrument, basis spread on variable rate   8.25%      
Credit Agreement | Athyrium | London Interbank Offered Rate (LIBOR) | PIK Interest Payment is Made          
Debt Instrument [Line Items]          
Debt instrument, basis spread on variable rate   10.25%      
Credit Agreement | Athyrium | Term A Loan          
Debt Instrument [Line Items]          
Proceeds from Issuance of Long-Term Debt   $ 125,000      
Amortization of debt issuance costs       $ 898  
Credit Agreement | Athyrium | Term B Loan          
Debt Instrument [Line Items]          
Debt instrument, face amount         $ 25,000
Credit Agreement | Athyrium | Term C Loan          
Debt Instrument [Line Items]          
Debt instrument, face amount         50,000
Credit Agreement | Athyrium | Term B And C Loan          
Debt Instrument [Line Items]          
Debt instrument, face amount         $ 75,000
Credit Agreement | Athyrium | Term Loans          
Debt Instrument [Line Items]          
Effective interest rate       11.88%  
Term Loan Tranche B | Pharmakon Advisors, LP | Line of Credit          
Debt Instrument [Line Items]          
Debt instrument, face amount 50,000        
Term Loan Tranche C | Pharmakon Advisors, LP | Line of Credit          
Debt Instrument [Line Items]          
Debt instrument, face amount 50,000        
Term Loan Tranche D | Pharmakon Advisors, LP | Line of Credit          
Debt Instrument [Line Items]          
Debt instrument, face amount $ 50,000