Income Taxes - Net Operating Loss and Tax Credit Carryforwards (Details) $ in Millions	Dec. 31, 2024 USD ($)
Tax Credit Carryforward [Line Items]
Excess interest	$ 30.0
Other deferred tax assets	5.0
Total tax carryforwards	168.6
Valuation Allowance
Excess interest	(29.7)
Other deferred tax assets	(5.0)
Total tax carryforwards	(125.6)
Domestic Tax Jurisdiction
Tax Credit Carryforward [Line Items]
Net operating loss subject to expiration	13.3
Tax credit carryforward	50.8
Alternative minimum tax credit	0.5
Valuation Allowance
Net operating loss subject to expiration	(0.1)
Tax credit carryforward	(50.8)
Alternative minimum tax credit	(0.1)
Domestic Tax Jurisdiction | Capital Loss Carryforward
Tax Credit Carryforward [Line Items]
Capital loss	0.6
Valuation Allowance
Capital loss	(0.6)
State and Local Jurisdiction
Tax Credit Carryforward [Line Items]
Net operating loss subject to expiration	4.9
Valuation Allowance
Net operating loss subject to expiration	(2.1)
State and Local Jurisdiction | Capital Loss Carryforward
Tax Credit Carryforward [Line Items]
Tax credit carryforward	0.3
Valuation Allowance
Tax credit carryforward	(0.1)
Non U.S. Tax Authority
Tax Credit Carryforward [Line Items]
Net operating loss not subject to expiration	62.6
Valuation Allowance
Net operating loss not subject to expiration	(36.5)
Non U.S. Tax Authority | Capital Loss Carryforward
Tax Credit Carryforward [Line Items]
Tax credit carryforward	0.6
Valuation Allowance
Tax credit carryforward	$ (0.6)