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Fair Value Measurements and Investments (Details) € in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) shares		Dec. 31, 2023 EUR (€) shares	Dec. 31, 2022 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity Securities without Readily Determinable Fair Value, Amount	$ 6.5
Interest Receivable, Current	11.9			$ 11.6
Equity Method Investments	32.3			26.7
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Financial Instruments, Owned, Principal Investments, at Fair Value	(325.7)	[1]	€ (400.0)	(322.6)	[1]
Fair Value, Option, Changes in Fair Value, Gain (Loss)	6.8	[1]
Foreign Currency Transaction Gain (Loss), Realized	9.9	[1]
Fair Value, Recurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Financial Instruments, Owned, Principal Investments, at Fair Value	$ (325.7)	[1]		(322.6)	[1]
Ordinary voting shares [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment ownership percentage	38.00%		38.00%
Investment Owned, Balance, Shares | shares	12,987,900		12,987,900
Preference shares [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment ownership percentage	28.00%		28.00%
Investment Owned, Balance, Shares | shares	9,588,908		9,588,908
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Financial Instruments, Owned, Principal Investments, at Fair Value	$ 0.0	[1]		$ 0.0	[1]
[1] The Loan under the fair value option is included in Other investments in the consolidated balance sheets.

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Amount of investment in equity security without readily determinable fair value.

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For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.

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Amount, before tax, of realized gain (loss) from foreign currency transaction.

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Carrying amount as of the balance sheet date of current interest earned but not received. Also called accrued interest or accrued interest receivable. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.

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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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