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Income Taxes - Expected Expirations of Federal and State Losses and Credits (Details) $ in Millions	Dec. 31, 2022 USD ($)
Federal
Expirations of Operating Loss Carryforwards, Components [Abstract]
2023	$ 5.3
2024	18.9
2025	9.6
2026	12.2
2027 and thereafter	249.2
Indefinite	625.4
Total	920.6
State
Expirations of Operating Loss Carryforwards, Components [Abstract]
2023	1.2
2024	9.1
2025	5.2
2026	7.1
2027 and thereafter	277.3
Indefinite	0.0
Total	299.9
Foreign Tax Authority
Expirations of Operating Loss Carryforwards, Components [Abstract]
2023	0.0
2024	0.0
2025	0.0
2026	0.0
2027 and thereafter	1.0
Indefinite	0.0
Total	1.0
Research Tax Credit Carryforward | Federal
Expirations of Tax Credit Carryforwards [Abstract]
2023	0.0
2024	0.0
2025	0.0
2026	0.0
2027 and thereafter	40.5
Indefinite	0.0
Total	40.5
Research Tax Credit Carryforward | State
Expirations of Tax Credit Carryforwards [Abstract]
2023	0.0
2024	0.0
2025	0.0
2026	0.0
2027 and thereafter	0.0
Indefinite	4.7
Total	$ 4.7

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