Debt - Schedule of Debt Outstanding (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Unamortized debt issuance costs	$ (0.3)	$ (0.5)
Total debt	74.2	72.2
Less current portion	(0.2)	(4.6)
Non-current debt	74.0	67.6
Revolving credit facility
Debt Instrument [Line Items]
Drawn	49.3	43.1
Overdraft
Debt Instrument [Line Items]
Drawn	$ 0.2	4.6
Loan Notes \| 4.94% Loan Notes due 2026
Debt Instrument [Line Items]
Debt stated interest rate	4.94%
Drawn	$ 25.0	$ 25.0

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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