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Retirement Benefits - Narrative (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2022 USD ($)
Defined Benefit Plan Disclosure [Line Items] |
Contributions by employer | $ 1.3
Other current assets |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan, assets | 7.9
Pension Benefits |
Defined Benefit Plan Disclosure [Line Items] |
Expected contribution for next fiscal year | 4.0
Other Postretirement Benefits |
Defined Benefit Plan Disclosure [Line Items] |
Expected contribution for next fiscal year | $ 1.2

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