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Summary of Significant Accounting Policies - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Concentration Risk [Line Items]        
Allowance for doubtful accounts receivable $ 100   $ 100  
Net product sales 94,503 $ 80,731 180,773 $ 159,446
Galafold        
Concentration Risk [Line Items]        
Net product sales $ 94,300 $ 80,700 $ 180,400 $ 159,400