Income Taxes - Tax Credit Carryforwards (Details) $ in Millions |
Dec. 31, 2019
USD ($)
|
---|---|
Research and Development Tax Credit | Federal | |
Tax Credit Carryforwards | |
Tax credit carryforwards | $ 11.2 |
Research and Development Tax Credit | State | |
Tax Credit Carryforwards | |
Tax credit carryforwards | 9.4 |
Orphan Drug Tax Credit | Federal | |
Tax Credit Carryforwards | |
Tax credit carryforwards | 92.5 |
Investment Tax Credit | State | |
Tax Credit Carryforwards | |
Tax credit carryforwards | $ 0.8 |