Income Taxes (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Operating Loss Carryforwards [Line Items]
Net deferred tax asset	$ 18.3
Valuation allowance	131.4
Federal
Operating Loss Carryforwards [Line Items]
Net oerating loss	312.0	$ 900.7
State
Operating Loss Carryforwards [Line Items]
Net oerating loss	$ 336.8