XML 61 R51.htm IDEA: XBRL DOCUMENT v3.23.1
Accounts Receivable - Additional Information (Detail)
3 Months Ended 12 Months Ended
Mar. 31, 2023
USD ($)
Distributor
Dec. 31, 2022
USD ($)
Distributor
Accounts Receivable [Line Items]    
Number of wholesale distributors | Distributor 3 3
Percentage of gross sales from major wholesale distributors 72.00%  
Allowance for credit losses for accounts receivable | $ $ 0 $ 0
Percentage of revenue from major customers collaborations and services 100.00%  
United Therapeutics Corporation    
Accounts Receivable [Line Items]    
Percentage of collaborations and services net accounts receivables 100.00% 100.00%
Commercial product sales    
Accounts Receivable [Line Items]    
Percentage of accounts receivable from major wholesale distributors 57.00% 79.00%