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Income Taxes - Components of Net Operating Loss Carryforwards (Details)
$ in Millions
Dec. 31, 2023
USD ($)
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards, subject to expiration $ 502.0
Operating loss carryforwards, not subject to expiration 544.5
Operating loss carryforwards 1,046.5
U.S. Federal  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards, subject to expiration 175.3
Operating loss carryforwards, not subject to expiration 544.5
Operating loss carryforwards 719.8
U.S. State  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards, subject to expiration 326.7
Operating loss carryforwards, not subject to expiration 0.0
Operating loss carryforwards $ 326.7