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Derivatives (Details) £ in Millions, $ in Millions	3 Months Ended
	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 GBP (£)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 GBP (£)
Derivative [Line Items]
Derivative loss	$ 1.3
Foreign Currency Forward
Derivative [Line Items]
Notional amount | £			£ 69.6
Notional amount | £					£ 47.3
Foreign Currency Forward | Other Current Liabilities
Derivative [Line Items]
Derivative liability		$ 1.6
Derivative asset				$ 5.1

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Nominal or face amount used to calculate payments on the derivative asset.

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