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Income Taxes - DOSE Net Operating Loss Carryforwards and Tax Credits (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Jun. 27, 2019
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Federal |  |
Income Taxes |  |
Net operating loss carryforwards | $ 355.6 |
Federal | Research and development credit carryforward |  |
Income Taxes |  |
Tax Credit Carryforward, Amount | 28.9 |
State |  |
Income Taxes |  |
Net operating loss carryforwards | 144.0 |
State | Research and development credit carryforward |  |
Income Taxes |  |
Tax Credit Carryforward, Amount | $ 12.8 |
DOSE Medical Corporation | Federal |  |
Income Taxes |  |
Net operating loss carryforwards |  | $ 2.9
DOSE Medical Corporation | Federal | Research and development credit carryforward |  |
Income Taxes |  |
Tax Credit Carryforward, Amount |  | 0.1
DOSE Medical Corporation | State |  |
Income Taxes |  |
Net operating loss carryforwards |  | 0.7
DOSE Medical Corporation | State | Research and development credit carryforward |  |
Income Taxes |  |
Tax Credit Carryforward, Amount |  | $ 0.2

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