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Derivatives (Details) - Foreign Currency Forward
£ in Millions, $ in Millions
Sep. 30, 2023
GBP (£)
Sep. 30, 2023
USD ($)
Dec. 31, 2022
GBP (£)
Dec. 31, 2022
USD ($)
Derivative [Line Items]        
Derivative asset, notional amount | £ £ 83.8   £ 67.3  
Derivative liabilities   $ 3.5    
Derivative assets       $ 0.5