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Income Taxes - Tax Credit Carryforwards (Details)
$ in Thousands
Dec. 31, 2022
USD ($)
Orphan drug tax credit carryforwards  
Tax Credit Carryforward  
Tax credit carryforward $ 14,641
State  
Tax Credit Carryforward  
Net operating loss carryforwards 257,806
State | Research and development credit carryforwards  
Tax Credit Carryforward  
Tax credit carryforward 20,773
Foreign  
Tax Credit Carryforward  
Net operating loss carryforwards $ 1,692,283