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Financing (Narrative) (Details) € in Millions, $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2026 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)	Dec. 15, 2025 EUR (€)
Line of Credit Facility [Line Items]
Proceeds from revolving credit facility		$ 159.4	$ 348.0
Repayment of revolving credit facility		101.0	342.0
Repayment of term loan		(112.4)	(36.8)
Short-term borrowings	$ 9.5	9.5
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax	5.5	7.7
Repayments of Short-Term Debt		115.1	$ 0.0
De La Rue Authentication Solutions
Line of Credit Facility [Line Items]
Short-term borrowings	123.5	123.5		$ 126.3	$ 0.0
Term Facility \| Credit Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity \| €						€ 800.0
Term Facility \| the credit facility \| Line of Credit
Line of Credit Facility [Line Items]
Debt instrument, face amount \| €						430.0
Debt instrument, face amount \| €						€ 430.0
Secured Debt, Term Loan B \| Capital Support Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Long-term debt	$ 478.9	$ 478.9			$ 120.7