Income Taxes Operating Loss (Details) $ in Millions	Dec. 31, 2019 USD ($)
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
NOL carryforward	$ 181.9
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
NOL carryforward	121.4
Year 2036 [Member] | Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
NOL carryforwards, subject to expiration	103.7
Year 2037 [Member] | Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
NOL carryforwards, subject to expiration	78.2
Year 2023 [Member] | State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
NOL carryforwards, subject to expiration	60.3
Year 2024 [Member] | State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
NOL carryforwards, subject to expiration	$ 61.1