Pension and Other Post Retirement Plans (Details 4) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year, Description	Required U.S. pension contributions under Employee Retirement Income Security Act (ERISA) regulations are expected to be zero in 2025 and discretionary contributions are not expected in 2025. SERP and post-retirement medical plan contributions in 2025 are expected to be $6.2. Expected contributions to the U.K. Prestwick plan for 2025 are $0.9. Expected contributions to the U.K. (Belfast) plans for 2025 are $1.9.
Pension Plan [Member] | UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	$ 0.1
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	0.1
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	0.1
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	0.1
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	0.1
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	0.4
Pension Plan [Member] | UNITED KINGDOM
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	1.0
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	1.2
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	1.5
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	1.6
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	1.7
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	9.7
Pension Plan [Member] | Belfast
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	55.9
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	61.2
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	65.6
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	72.2
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	77.3
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	443.7
Other Benefits [Member] | UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	6.1
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	5.9
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	5.6
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	4.9
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	3.9
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	7.7
Other Benefits [Member] | Belfast
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	0.0
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	0.0
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	0.0
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	0.0
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	0.0
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	$ 0.1