Pension Plans - Narrative (Details) - UNITED KINGDOM - Pension Plan $ in Millions	Sep. 30, 2023 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Plan obligation	$ 40.3
Plan assets, amount	49.0
Plan with assets in excess of benefit obligation, plan assets	8.7
Unrealized gain (loss) in accumulated other comprehensive income (loss)	$ 20.4