Income Taxes (Details 2) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 0.80
Tax Credit Carryforward, Valuation Allowance	(800,000)	$ (800,000)
Current
Federal	2,900,000	200,000	$ 100,000
State and local	200,000	0	300,000
Current domestic taxes	3,100,000	200,000	400,000
Foreign	17,300,000	18,300,000	18,600,000
Current Income Tax Expense (Benefit)	20,400,000	18,500,000	19,000,000.0
Deferred
Federal	13,500,000	11,100,000	6,700,000
State and local	(1,800,000)	2,700,000	3,000,000.0
Deferred domestic taxes	11,700,000	13,800,000	9,700,000
Foreign	26,600,000	22,500,000	24,500,000
Deferred Income Tax Expense (Benefit)	38,300,000	36,300,000	34,200,000
Income tax benefit	58,700,000	$ 54,800,000	53,200,000
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	357,100,000
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	4,100,000
Foreign Tax Authority | United Kingdom tax authority
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	$ 39,700,000		$ 39,700,000