Income Taxes Deferred Income Tax Asset and Liability Components - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Valuation Allowance [Line Items]
Net deferred income tax liabilities	$ 85.0	$ 76.5
Income taxes receivable	11.1	20.2
State tax credits	1.2
Federal and state loss carryforwards and state tax credits, deferred tax asset	22.7
State net operating loss carryforwards, valuation allowance	7.1	$ 4.6
Domestic Tax Authority
Valuation Allowance [Line Items]
Gross domestic state net operating loss carryforwards	63.1
State and Local Jurisdiction
Valuation Allowance [Line Items]
Gross domestic state net operating loss carryforwards	161.2
Operating loss carryforwards not subject to expiration	30.7
Operating loss carryforwards subject to expiration dates from 2024 through 2043	130.5
Deferred Tax Asset, Loss Carry Forwards
Valuation Allowance [Line Items]
State net operating loss carryforwards, valuation allowance	$ 7.1