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Inventory - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2024
Dec. 31, 2023
[1]
Inventory [Line Items]    
Inventories - current $ 63,642 $ 62,972
Inventories-noncurrent 264,292 $ 206,965
Inventory incurred prior to FDA approval $ 38,200  
Minimum    
Inventory [Line Items]    
Period of lower average per unit cost of materials 9 months  
Maximum    
Inventory [Line Items]    
Period of lower average per unit cost of materials 12 months  
[1] The condensed consolidated balance sheet at December 31, 2023 has been derived from the audited consolidated financial statements at that date.